From 4f053696e1813fde4bd6cebbb77ff2a1e1f6800b Mon Sep 17 00:00:00 2001
From: Philipp Gesang <phg@phi-gamma.net>
Date: Thu, 29 Oct 2015 07:14:40 +0100
Subject: [fontloader] sync with Context as of 2015-10-29
---
src/fontloader/misc/fontloader-basics-nod.lua | 3 +
src/fontloader/misc/fontloader-font-afm.lua | 18 +-
src/fontloader/misc/fontloader-font-con.lua | 114 +-
src/fontloader/misc/fontloader-font-def.lua | 6 +-
src/fontloader/misc/fontloader-font-map.lua | 473 ++--
src/fontloader/misc/fontloader-font-otb.lua | 10 +-
src/fontloader/misc/fontloader-font-otf.lua | 583 ++++-
src/fontloader/misc/fontloader-font-otp.lua | 5 +-
src/fontloader/misc/fontloader-font-tfm.lua | 1 +
src/fontloader/misc/fontloader-fonts-cbk.lua | 33 +-
src/fontloader/misc/fontloader-fonts-inj.lua | 375 +--
src/fontloader/misc/fontloader-fonts-otn.lua | 2125 +++++++++++-----
src/fontloader/misc/fontloader-fonts.lua | 18 +-
src/fontloader/misc/fontloader-l-lpeg.lua | 2 +-
src/fontloader/misc/fontloader-l-lua.lua | 34 +-
src/fontloader/misc/fontloader-l-string.lua | 7 +-
src/fontloader/misc/fontloader-l-table.lua | 2 +-
src/fontloader/misc/fontloader-mplib.lua | 114 +-
src/fontloader/misc/fontloader-mplib.tex | 21 +-
src/fontloader/misc/fontloader-plain.tex | 25 +-
src/fontloader/misc/fontloader-test.tex | 26 +-
src/fontloader/misc/fontloader-util-str.lua | 13 +-
src/fontloader/runtime/fontloader-reference.lua | 2947 ++++++++++++++++-------
23 files changed, 4803 insertions(+), 2152 deletions(-)
(limited to 'src/fontloader')
diff --git a/src/fontloader/misc/fontloader-basics-nod.lua b/src/fontloader/misc/fontloader-basics-nod.lua
index 1ec2895..39400a3 100644
--- a/src/fontloader/misc/fontloader-basics-nod.lua
+++ b/src/fontloader/misc/fontloader-basics-nod.lua
@@ -56,6 +56,9 @@ local whatcodes = { } for k,v in next, node.whatsits() do whatcodes[string.gs
local glyphcodes = { [0] = "character", "glyph", "ligature", "ghost", "left", "right" }
local disccodes = { [0] = "discretionary", "explicit", "automatic", "regular", "first", "second" }
+for i=0,#glyphcodes do glyphcodes[glyphcodes[i]] = i end
+for i=0,#disccodes do disccodes [disccodes [i]] = i end
+
nodes.nodecodes = nodecodes
nodes.whatcodes = whatcodes
nodes.whatsitcodes = whatcodes
diff --git a/src/fontloader/misc/fontloader-font-afm.lua b/src/fontloader/misc/fontloader-font-afm.lua
index a96c668..329639b 100644
--- a/src/fontloader/misc/fontloader-font-afm.lua
+++ b/src/fontloader/misc/fontloader-font-afm.lua
@@ -152,14 +152,14 @@ end
local keys = { }
-function keys.FontName (data,line) data.metadata.fontname = strip (line) -- get rid of spaces
- data.metadata.fullname = strip (line) end
-function keys.ItalicAngle (data,line) data.metadata.italicangle = tonumber (line) end
-function keys.IsFixedPitch(data,line) data.metadata.isfixedpitch = toboolean(line,true) end
-function keys.CharWidth (data,line) data.metadata.charwidth = tonumber (line) end
-function keys.XHeight (data,line) data.metadata.xheight = tonumber (line) end
-function keys.Descender (data,line) data.metadata.descender = tonumber (line) end
-function keys.Ascender (data,line) data.metadata.ascender = tonumber (line) end
+function keys.FontName (data,line) data.metadata.fontname = strip (line) -- get rid of spaces
+ data.metadata.fullname = strip (line) end
+function keys.ItalicAngle (data,line) data.metadata.italicangle = tonumber (line) end
+function keys.IsFixedPitch(data,line) data.metadata.monospaced = toboolean(line,true) end
+function keys.CharWidth (data,line) data.metadata.charwidth = tonumber (line) end
+function keys.XHeight (data,line) data.metadata.xheight = tonumber (line) end
+function keys.Descender (data,line) data.metadata.descender = tonumber (line) end
+function keys.Ascender (data,line) data.metadata.ascender = tonumber (line) end
function keys.Comment (data,line)
-- Comment DesignSize 12 (pts)
-- Comment TFM designsize: 12 (in points)
@@ -640,7 +640,7 @@ local function copytotfm(data)
local spacer = "space"
local spaceunits = 500
--
- local monospaced = metadata.isfixedpitch
+ local monospaced = metadata.monospaced
local charwidth = metadata.charwidth
local italicangle = metadata.italicangle
local charxheight = metadata.xheight and metadata.xheight > 0 and metadata.xheight
diff --git a/src/fontloader/misc/fontloader-font-con.lua b/src/fontloader/misc/fontloader-font-con.lua
index 72fbb5c..383a403 100644
--- a/src/fontloader/misc/fontloader-font-con.lua
+++ b/src/fontloader/misc/fontloader-font-con.lua
@@ -191,10 +191,9 @@ in the process; numbers are of course copies. Here 65536 equals 1pt. (Due to
excessive memory usage in CJK fonts, we no longer pass the boundingbox.)</p>
--ldx]]--
--- The scaler is only used for otf and afm and virtual fonts. If
--- a virtual font has italic correction make sure to set the
--- hasitalics flag. Some more flags will be added in
--- the future.
+-- The scaler is only used for otf and afm and virtual fonts. If a virtual font has italic
+-- correction make sure to set the hasitalics flag. Some more flags will be added in the
+-- future.
--[[ldx--
<p>The reason why the scaler was originally split, is that for a while we experimented
@@ -426,6 +425,7 @@ function constructors.scale(tfmdata,specification)
local vdelta = delta
--
target.designsize = parameters.designsize -- not really needed so it might become obsolete
+ target.units = units
target.units_per_em = units -- just a trigger for the backend
--
local direction = properties.direction or tfmdata.direction or 0 -- pointless, as we don't use omf fonts at all
@@ -562,26 +562,27 @@ function constructors.scale(tfmdata,specification)
target.mathparameters = nil -- nop
end
--
- local italickey = "italic"
- local useitalics = true -- something context
- --
- -- some context specific trickery (this will move to a plugin)
+ -- Here we support some context specific trickery (this might move to a plugin). During the
+ -- transition to opentype the engine had troubles with italics so we had some additional code
+ -- for fixing that. In node mode (text) we don't care much if italics gets passed because
+ -- the engine does nothign with them then.
--
if hasmath then
- -- the latest luatex can deal with it itself so we now disable this
- -- mechanism here
- --
- -- if properties.mathitalics then
- -- italickey = "italic_correction"
- -- if trace_defining then
- -- report_defining("math italics disabled for font %a, fullname %a, filename %a",name,fullname,filename)
- -- end
- -- end
- autoitalicamount = false -- new
- elseif properties.textitalics then
- italickey = "italic_correction"
- useitalics = false
- if properties.delaytextitalics then
+ local mathitalics = properties.mathitalics
+ if mathitalics == false then
+ if trace_defining then
+ report_defining("%s italics %s for font %a, fullname %a, filename %a","math",hasitalics and "ignored" or "disabled",name,fullname,filename)
+ end
+ hasitalics = false
+ autoitalicamount = false
+ end
+ else
+ local textitalics = properties.textitalics
+ if textitalics == false then
+ if trace_defining then
+ report_defining("%s italics %s for font %a, fullname %a, filename %a","text",hasitalics and "ignored" or "disabled",name,fullname,filename)
+ end
+ hasitalics = false
autoitalicamount = false
end
end
@@ -590,8 +591,7 @@ function constructors.scale(tfmdata,specification)
--
if trace_defining then
report_defining("defining tfm, name %a, fullname %a, filename %a, hscale %a, vscale %a, math %a, italics %a",
- name,fullname,filename,hdelta,vdelta,
- hasmath and "enabled" or "disabled",useitalics and "enabled" or "disabled")
+ name,fullname,filename,hdelta,vdelta,hasmath and "enabled" or "disabled",hasitalics and "enabled" or "disabled")
end
--
constructors.beforecopyingcharacters(target,tfmdata)
@@ -606,15 +606,15 @@ function constructors.scale(tfmdata,specification)
local c = changed[unicode]
if c then
description = descriptions[c] or descriptions[unicode] or character
- character = characters[c] or character
- index = description.index or c
+ character = characters[c] or character
+ index = description.index or c
else
description = descriptions[unicode] or character
- index = description.index or unicode
+ index = description.index or unicode
end
else
description = descriptions[unicode] or character
- index = description.index or unicode
+ index = description.index or unicode
end
local width = description.width
local height = description.height
@@ -699,23 +699,6 @@ function constructors.scale(tfmdata,specification)
end
end
--
- if autoitalicamount then
- local vi = description.italic
- if not vi then
- local vi = description.boundingbox[3] - description.width + autoitalicamount
- if vi > 0 then -- < 0 indicates no overshoot or a very small auto italic
- chr[italickey] = vi*hdelta
- end
- elseif vi ~= 0 then
- chr[italickey] = vi*hdelta
- end
- elseif hasitalics then
- local vi = description.italic
- if vi and vi ~= 0 then
- chr[italickey] = vi*hdelta
- end
- end
- -- to be tested
if hasmath then
-- todo, just operate on descriptions.math
local vn = character.next
@@ -754,7 +737,7 @@ function constructors.scale(tfmdata,specification)
end
end
end
- local va = character.top_accent
+ local va = character.accent
if va then
chr.top_accent = vdelta*va
end
@@ -777,6 +760,27 @@ function constructors.scale(tfmdata,specification)
chr.mathkern = kerns -- singular -> should be patched in luatex !
end
end
+ if hasitalics then
+ local vi = character.italic
+ if vi and vi ~= 0 then
+ chr.italic = vi*hdelta
+ end
+ end
+ elseif autoitalicamount then -- itlc feature
+ local vi = description.italic
+ if not vi then
+ local vi = description.boundingbox[3] - description.width + autoitalicamount
+ if vi > 0 then -- < 0 indicates no overshoot or a very small auto italic
+ chr.italic = vi*hdelta
+ end
+ elseif vi ~= 0 then
+ chr.italic = vi*hdelta
+ end
+ elseif hasitalics then -- unlikely
+ local vi = character.italic
+ if vi and vi ~= 0 then
+ chr.italic = vi*hdelta
+ end
end
if haskerns then
local vk = character.kerns
@@ -843,6 +847,8 @@ function constructors.scale(tfmdata,specification)
targetcharacters[unicode] = chr
end
--
+ properties.setitalics = hasitalics -- for postprocessing
+ --
constructors.aftercopyingcharacters(target,tfmdata)
--
constructors.trytosharefont(target,tfmdata)
@@ -895,12 +901,21 @@ function constructors.finalize(tfmdata)
parameters.slantfactor = tfmdata.slant or 0
end
--
- if not parameters.designsize then
- parameters.designsize = tfmdata.designsize or (factors.pt * 10)
+ local designsize = parameters.designsize
+ if designsize then
+ parameters.minsize = tfmdata.minsize or designsize
+ parameters.maxsize = tfmdata.maxsize or designsize
+ else
+ designsize = factors.pt * 10
+ parameters.designsize = designsize
+ parameters.minsize = designsize
+ parameters.maxsize = designsize
end
+ parameters.minsize = tfmdata.minsize or parameters.designsize
+ parameters.maxsize = tfmdata.maxsize or parameters.designsize
--
if not parameters.units then
- parameters.units = tfmdata.units_per_em or 1000
+ parameters.units = tfmdata.units or tfmdata.units_per_em or 1000
end
--
if not tfmdata.descriptions then
@@ -976,6 +991,7 @@ function constructors.finalize(tfmdata)
tfmdata.auto_protrude = nil
tfmdata.extend = nil
tfmdata.slant = nil
+ tfmdata.units = nil
tfmdata.units_per_em = nil
--
tfmdata.cache = nil
diff --git a/src/fontloader/misc/fontloader-font-def.lua b/src/fontloader/misc/fontloader-font-def.lua
index fdded3c..add42ee 100644
--- a/src/fontloader/misc/fontloader-font-def.lua
+++ b/src/fontloader/misc/fontloader-font-def.lua
@@ -183,10 +183,11 @@ end
function resolvers.name(specification)
local resolve = fonts.names.resolve
if resolve then
- local resolved, sub = resolve(specification.name,specification.sub,specification) -- we pass specification for overloaded versions
+ local resolved, sub, subindex = resolve(specification.name,specification.sub,specification) -- we pass specification for overloaded versions
if resolved then
specification.resolved = resolved
specification.sub = sub
+ specification.subindex = subindex
local suffix = lower(suffixonly(resolved))
if fonts.formats[suffix] then
specification.forced = suffix
@@ -204,10 +205,11 @@ end
function resolvers.spec(specification)
local resolvespec = fonts.names.resolvespec
if resolvespec then
- local resolved, sub = resolvespec(specification.name,specification.sub,specification) -- we pass specification for overloaded versions
+ local resolved, sub, subindex = resolvespec(specification.name,specification.sub,specification) -- we pass specification for overloaded versions
if resolved then
specification.resolved = resolved
specification.sub = sub
+ specification.subindex = subindex
specification.forced = lower(suffixonly(resolved))
specification.forcedname = resolved
specification.name = removesuffix(resolved)
diff --git a/src/fontloader/misc/fontloader-font-map.lua b/src/fontloader/misc/fontloader-font-map.lua
index 69474ba..b645d9a 100644
--- a/src/fontloader/misc/fontloader-font-map.lua
+++ b/src/fontloader/misc/fontloader-font-map.lua
@@ -31,25 +31,27 @@ of obsolete. Some code may move to runtime or auxiliary modules.</p>
<p>The name to unciode related code will stay of course.</p>
--ldx]]--
-local function loadlumtable(filename) -- will move to font goodies
- local lumname = file.replacesuffix(file.basename(filename),"lum")
- local lumfile = resolvers.findfile(lumname,"map") or ""
- if lumfile ~= "" and lfs.isfile(lumfile) then
- if trace_loading or trace_mapping then
- report_fonts("loading map table %a",lumfile)
- end
- lumunic = dofile(lumfile)
- return lumunic, lumfile
- end
-end
+-- local function loadlumtable(filename) -- will move to font goodies
+-- local lumname = file.replacesuffix(file.basename(filename),"lum")
+-- local lumfile = resolvers.findfile(lumname,"map") or ""
+-- if lumfile ~= "" and lfs.isfile(lumfile) then
+-- if trace_loading or trace_mapping then
+-- report_fonts("loading map table %a",lumfile)
+-- end
+-- lumunic = dofile(lumfile)
+-- return lumunic, lumfile
+-- end
+-- end
local hex = R("AF","09")
-local hexfour = (hex*hex*hex*hex) / function(s) return tonumber(s,16) end
-local hexsix = (hex*hex*hex*hex*hex*hex) / function(s) return tonumber(s,16) end
+----- hexfour = (hex*hex*hex*hex) / function(s) return tonumber(s,16) end
+----- hexsix = (hex*hex*hex*hex*hex*hex) / function(s) return tonumber(s,16) end
+local hexfour = (hex*hex*hex^-2) / function(s) return tonumber(s,16) end
+local hexsix = (hex*hex*hex^-4) / function(s) return tonumber(s,16) end
local dec = (R("09")^1) / tonumber
local period = P(".")
-local unicode = P("uni") * (hexfour * (period + P(-1)) * Cc(false) + Ct(hexfour^1) * Cc(true))
-local ucode = P("u") * (hexsix * (period + P(-1)) * Cc(false) + Ct(hexsix ^1) * Cc(true))
+local unicode = (P("uni") + P("UNI")) * (hexfour * (period + P(-1)) * Cc(false) + Ct(hexfour^1) * Cc(true)) -- base planes
+local ucode = (P("u") + P("U") ) * (hexsix * (period + P(-1)) * Cc(false) + Ct(hexsix ^1) * Cc(true)) -- extended
local index = P("index") * dec * Cc(false)
local parser = unicode + ucode + index
@@ -168,7 +170,6 @@ end
-- return s
-- end
-mappings.loadlumtable = loadlumtable
mappings.makenameparser = makenameparser
mappings.tounicode = tounicode
mappings.tounicode16 = tounicode16
@@ -179,13 +180,13 @@ local ligseparator = P("_")
local varseparator = P(".")
local namesplitter = Ct(C((1 - ligseparator - varseparator)^1) * (ligseparator * C((1 - ligseparator - varseparator)^1))^0)
+-- maybe: ff fi fl ffi ffl => f_f f_i f_l f_f_i f_f_l
+
-- local function test(name)
-- local split = lpegmatch(namesplitter,name)
-- print(string.formatters["%s: [% t]"](name,split))
-- end
--- maybe: ff fi fl ffi ffl => f_f f_i f_l f_f_i f_f_l
-
-- test("i.f_")
-- test("this")
-- test("this.that")
@@ -221,332 +222,184 @@ end
mappings.overloads = overloads
-function mappings.addtounicode(data,filename)
- local resources = data.resources
- local properties = data.properties
- local descriptions = data.descriptions
- local unicodes = resources.unicodes
- local lookuptypes = resources.lookuptypes
+function mappings.addtounicode(data,filename,checklookups)
+ local resources = data.resources
+ local unicodes = resources.unicodes
if not unicodes then
return
end
+ local properties = data.properties
+ local descriptions = data.descriptions
-- we need to move this code
unicodes['space'] = unicodes['space'] or 32
unicodes['hyphen'] = unicodes['hyphen'] or 45
unicodes['zwj'] = unicodes['zwj'] or 0x200D
unicodes['zwnj'] = unicodes['zwnj'] or 0x200C
- local private = fonts.constructors.privateoffset
- local unicodevector = fonts.encodings.agl.unicodes -- loaded runtime in context
- ----- namevector = fonts.encodings.agl.names -- loaded runtime in context
- local missing = { }
- local lumunic, uparser, oparser
- local cidinfo, cidnames, cidcodes, usedmap
- --
- cidinfo = properties.cidinfo
- usedmap = cidinfo and fonts.cid.getmap(cidinfo)
--
+ local private = fonts.constructors and fonts.constructors.privateoffset or 0xF0000 -- 0x10FFFF
+ local unicodevector = fonts.encodings.agl.unicodes or { } -- loaded runtime in context
+ local contextvector = fonts.encodings.agl.ctxcodes or { } -- loaded runtime in context
+ local missing = { }
+ local nofmissing = 0
+ local oparser = nil
+ local cidnames = nil
+ local cidcodes = nil
+ local cidinfo = properties.cidinfo
+ local usedmap = cidinfo and fonts.cid.getmap(cidinfo)
+ local uparser = makenameparser() -- hm, every time?
if usedmap then
- oparser = usedmap and makenameparser(cidinfo.ordering)
- cidnames = usedmap.names
- cidcodes = usedmap.unicodes
+ oparser = usedmap and makenameparser(cidinfo.ordering)
+ cidnames = usedmap.names
+ cidcodes = usedmap.unicodes
end
- uparser = makenameparser()
- local ns, nl = 0, 0
+ local ns = 0
+ local nl = 0
+ --
for unic, glyph in next, descriptions do
- local index = glyph.index
- local name = glyph.name
- local r = overloads[name]
- if r then
- -- get rid of weird ligatures
- -- glyph.name = r.name
- glyph.unicode = r.unicode
- elseif unic == -1 or unic >= private or (unic >= 0xE000 and unic <= 0xF8FF) or unic == 0xFFFE or unic == 0xFFFF then
- local unicode = lumunic and lumunic[name] or unicodevector[name]
- if unicode then
- glyph.unicode = unicode
- ns = ns + 1
- end
- -- cidmap heuristics, beware, there is no guarantee for a match unless
- -- the chain resolves
- if (not unicode) and usedmap then
- local foundindex = lpegmatch(oparser,name)
- if foundindex then
- unicode = cidcodes[foundindex] -- name to number
- if unicode then
- glyph.unicode = unicode
- ns = ns + 1
- else
- local reference = cidnames[foundindex] -- number to name
- if reference then
- local foundindex = lpegmatch(oparser,reference)
- if foundindex then
- unicode = cidcodes[foundindex]
- if unicode then
- glyph.unicode = unicode
- ns = ns + 1
+ local name = glyph.name
+ if name then
+ local index = glyph.index
+ local r = overloads[name]
+ if r then
+ -- get rid of weird ligatures
+ -- glyph.name = r.name
+ glyph.unicode = r.unicode
+ elseif not unic or unic == -1 or unic >= private or (unic >= 0xE000 and unic <= 0xF8FF) or unic == 0xFFFE or unic == 0xFFFF then
+ local unicode = unicodevector[name] or contextvector[name]
+ if unicode then
+ glyph.unicode = unicode
+ ns = ns + 1
+ end
+ -- cidmap heuristics, beware, there is no guarantee for a match unless
+ -- the chain resolves
+ if (not unicode) and usedmap then
+ local foundindex = lpegmatch(oparser,name)
+ if foundindex then
+ unicode = cidcodes[foundindex] -- name to number
+ if unicode then
+ glyph.unicode = unicode
+ ns = ns + 1
+ else
+ local reference = cidnames[foundindex] -- number to name
+ if reference then
+ local foundindex = lpegmatch(oparser,reference)
+ if foundindex then
+ unicode = cidcodes[foundindex]
+ if unicode then
+ glyph.unicode = unicode
+ ns = ns + 1
+ end
end
- end
- if not unicode or unicode == "" then
- local foundcodes, multiple = lpegmatch(uparser,reference)
- if foundcodes then
- glyph.unicode = foundcodes
- if multiple then
- nl = nl + 1
- unicode = true
- else
- ns = ns + 1
- unicode = foundcodes
+ if not unicode or unicode == "" then
+ local foundcodes, multiple = lpegmatch(uparser,reference)
+ if foundcodes then
+ glyph.unicode = foundcodes
+ if multiple then
+ nl = nl + 1
+ unicode = true
+ else
+ ns = ns + 1
+ unicode = foundcodes
+ end
end
end
end
end
end
end
- end
- -- a.whatever or a_b_c.whatever or a_b_c (no numbers) a.b_
- --
- -- It is not trivial to find a solution that suits all fonts. We tried several alternatives
- -- and this one seems to work reasonable also with fonts that use less standardized naming
- -- schemes. The extra private test is tested by KE and seems to work okay with non-typical
- -- fonts as well.
- --
- -- The next time I look into this, I'll add an extra analysis step to the otf loader (we can
- -- resolve some tounicodes by looking into the gsub data tables that are bound to glyphs.
- --
--- a real tricky last resort:
---
--- local lookups = glyph.lookups
--- if lookups then
--- for _, lookup in next, lookups do -- assume consistency else we need to sort
--- for i=1,#lookup do
--- local l = lookup[i]
--- if l.type == "ligature" then
--- local s = l.specification
--- if s.char == glyph.name then
--- local components = s.components
--- if components then
--- local t, n = { }, 0
--- unicode = true
--- for l=1,#components do
--- local base = components[l]
--- local u = unicodes[base] or unicodevector[base]
--- if not u then
--- break
--- elseif type(u) == "table" then
--- if u[1] >= private then
--- unicode = false
--- break
--- end
--- n = n + 1
--- t[n] = u[1]
--- else
--- if u >= private then
--- unicode = false
--- break
--- end
--- n = n + 1
--- t[n] = u
--- end
--- end
--- if n == 0 then -- done then
--- -- nothing
--- elseif n == 1 then
--- glyph.unicode = t[1]
--- else
--- glyph.unicode = t
--- end
--- nl = nl + 1
--- break
--- end
--- end
--- end
--- end
--- if unicode then
--- break
--- end
--- end
--- end
- if not unicode or unicode == "" then
- local split = lpegmatch(namesplitter,name)
- local nsplit = split and #split or 0
- local t, n = { }, 0
- unicode = true
- for l=1,nsplit do
- local base = split[l]
- local u = unicodes[base] or unicodevector[base]
- if not u then
- break
- elseif type(u) == "table" then
- if u[1] >= private then
- unicode = false
- break
+ -- a.whatever or a_b_c.whatever or a_b_c (no numbers) a.b_
+ --
+ -- It is not trivial to find a solution that suits all fonts. We tried several alternatives
+ -- and this one seems to work reasonable also with fonts that use less standardized naming
+ -- schemes. The extra private test is tested by KE and seems to work okay with non-typical
+ -- fonts as well.
+ --
+ if not unicode or unicode == "" then
+ local split = lpegmatch(namesplitter,name)
+ local nsplit = split and #split or 0 -- add if
+ if nsplit == 0 then
+ -- skip
+ elseif nsplit == 1 then
+ local base = split[1]
+ local u = unicodes[base] or unicodevector[base] or contextvector[name]
+ if not u then
+ -- skip
+ elseif type(u) == "table" then
+ -- unlikely
+ if u[1] < private then
+ unicode = u
+ glyph.unicode = unicode
+ end
+ elseif u < private then
+ unicode = u
+ glyph.unicode = unicode
end
- n = n + 1
- t[n] = u[1]
else
- if u >= private then
- unicode = false
- break
- end
- n = n + 1
- t[n] = u
- end
- end
- if n == 0 then -- done then
- -- nothing
- elseif n == 1 then
- glyph.unicode = t[1]
- else
- glyph.unicode = t
- end
- nl = nl + 1
- end
- -- last resort (we might need to catch private here as well)
- if not unicode or unicode == "" then
- local foundcodes, multiple = lpegmatch(uparser,name)
- if foundcodes then
- glyph.unicode = foundcodes
- if multiple then
- nl = nl + 1
- unicode = true
- else
- ns = ns + 1
- unicode = foundcodes
- end
- end
- end
- -- check using substitutes and alternates
- local r = overloads[unicode]
- if r then
- unicode = r.unicode
- glyph.unicode = unicode
- end
- --
- if not unicode then
- missing[name] = true
- end
- end
- end
- if next(missing) then
- local guess = { }
- -- helper
- local function check(gname,code,unicode)
- local description = descriptions[code]
- -- no need to add a self reference
- local variant = description.name
- if variant == gname then
- return
- end
- -- the variant already has a unicode (normally that resultrs in a default tounicode to self)
- local unic = unicodes[variant]
- if unic == -1 or unic >= private or (unic >= 0xE000 and unic <= 0xF8FF) or unic == 0xFFFE or unic == 0xFFFF then
- -- no default mapping and therefore maybe no tounicode yet
- else
- return
- end
- -- the variant already has a tounicode
- if descriptions[code].unicode then
- return
- end
- -- add to the list
- local g = guess[variant]
- -- local r = overloads[unicode]
- -- if r then
- -- unicode = r.unicode
- -- end
- if g then
- g[gname] = unicode
- else
- guess[variant] = { [gname] = unicode }
- end
- end
- --
- for unicode, description in next, descriptions do
- local slookups = description.slookups
- if slookups then
- local gname = description.name
- for tag, data in next, slookups do
- local lookuptype = lookuptypes[tag]
- if lookuptype == "alternate" then
- for i=1,#data do
- check(gname,data[i],unicode)
- end
- elseif lookuptype == "substitution" then
- check(gname,data,unicode)
- end
- end
- end
- local mlookups = description.mlookups
- if mlookups then
- local gname = description.name
- for tag, list in next, mlookups do
- local lookuptype = lookuptypes[tag]
- if lookuptype == "alternate" then
- for i=1,#list do
- local data = list[i]
- for i=1,#data do
- check(gname,data[i],unicode)
+ local t, n = { }, 0
+ for l=1,nsplit do
+ local base = split[l]
+ local u = unicodes[base] or unicodevector[base] or contextvector[name]
+ if not u then
+ break
+ elseif type(u) == "table" then
+ if u[1] >= private then
+ break
+ end
+ n = n + 1
+ t[n] = u[1]
+ else
+ if u >= private then
+ break
+ end
+ n = n + 1
+ t[n] = u
end
end
- elseif lookuptype == "substitution" then
- for i=1,#list do
- check(gname,list[i],unicode)
+ if n > 0 then
+ if n == 1 then
+ unicode = t[1]
+ else
+ unicode = t
+ end
+ glyph.unicode = unicode
end
end
+ nl = nl + 1
end
- end
- end
- -- resolve references
- local done = true
- while done do
- done = false
- for k, v in next, guess do
- if type(v) ~= "number" then
- for kk, vv in next, v do
- if vv == -1 or vv >= private or (vv >= 0xE000 and vv <= 0xF8FF) or vv == 0xFFFE or vv == 0xFFFF then
- local uu = guess[kk]
- if type(uu) == "number" then
- guess[k] = uu
- done = true
- end
+ -- last resort (we might need to catch private here as well)
+ if not unicode or unicode == "" then
+ local foundcodes, multiple = lpegmatch(uparser,name)
+ if foundcodes then
+ glyph.unicode = foundcodes
+ if multiple then
+ nl = nl + 1
+ unicode = true
else
- guess[k] = vv
- done = true
+ ns = ns + 1
+ unicode = foundcodes
end
end
end
- end
- end
- -- wrap up
- local orphans = 0
- local guessed = 0
- for k, v in next, guess do
- if type(v) == "number" then
- descriptions[unicodes[k]].unicode = descriptions[v].unicode or v -- can also be a table
- guessed = guessed + 1
- else
- local t = nil
- local l = lower(k)
- local u = unicodes[l]
- if not u then
- orphans = orphans + 1
- elseif u == -1 or u >= private or (u >= 0xE000 and u <= 0xF8FF) or u == 0xFFFE or u == 0xFFFF then
- local unicode = descriptions[u].unicode
- if unicode then
- descriptions[unicodes[k]].unicode = unicode
- guessed = guessed + 1
- else
- orphans = orphans + 1
- end
- else
- orphans = orphans + 1
+ -- check using substitutes and alternates
+ local r = overloads[unicode]
+ if r then
+ unicode = r.unicode
+ glyph.unicode = unicode
+ end
+ --
+ if not unicode then
+ missing[unic] = true
+ nofmissing = nofmissing + 1
end
end
+ else
+ -- no name
end
- if trace_loading and orphans > 0 or guessed > 0 then
- report_fonts("%s glyphs with no related unicode, %s guessed, %s orphans",guessed+orphans,guessed,orphans)
- end
end
+ if type(checklookups) == "function" then
+ checklookups(data,missing,nofmissing)
+ end
+ -- todo: go lowercase
if trace_mapping then
for unic, glyph in table.sortedhash(descriptions) do
local name = glyph.name
diff --git a/src/fontloader/misc/fontloader-font-otb.lua b/src/fontloader/misc/fontloader-font-otb.lua
index 4e955a1..c9f5d4a 100644
--- a/src/fontloader/misc/fontloader-font-otb.lua
+++ b/src/fontloader/misc/fontloader-font-otb.lua
@@ -321,14 +321,14 @@ local function preparesubstitutions(tfmdata,feature,value,validlookups,lookuplis
for unicode, character in next, characters do
local description = descriptions[unicode]
- local lookups = description.slookups
+ local lookups = description.slookups
if lookups then
for l=1,#lookuplist do
local lookupname = lookuplist[l]
local lookupdata = lookups[lookupname]
if lookupdata then
local lookuptype = lookuptypes[lookupname]
- local action = actions[lookuptype]
+ local action = actions[lookuptype]
if action then
action(lookupdata,lookuptags,lookupname,description,unicode)
end
@@ -342,7 +342,7 @@ local function preparesubstitutions(tfmdata,feature,value,validlookups,lookuplis
local lookuplist = lookups[lookupname]
if lookuplist then
local lookuptype = lookuptypes[lookupname]
- local action = actions[lookuptype]
+ local action = actions[lookuptype]
if action then
for i=1,#lookuplist do
action(lookuplist[i],lookuptags,lookupname,description,unicode)
@@ -614,8 +614,8 @@ local function featuresinitializer(tfmdata,value)
local collectlookups = otf.collectlookups
local rawdata = tfmdata.shared.rawdata
local properties = tfmdata.properties
- local script = properties.script
- local language = properties.language
+ local script = properties.script -- or "dflt" -- can be nil
+ local language = properties.language -- or "dflt" -- can be nil
local basesubstitutions = rawdata.resources.features.gsub
local basepositionings = rawdata.resources.features.gpos
--
diff --git a/src/fontloader/misc/fontloader-font-otf.lua b/src/fontloader/misc/fontloader-font-otf.lua
index e7a97c6..0ca1e98 100644
--- a/src/fontloader/misc/fontloader-font-otf.lua
+++ b/src/fontloader/misc/fontloader-font-otf.lua
@@ -12,15 +12,19 @@ if not modules then modules = { } end modules ['font-otf'] = {
-- to_table -> totable
-- ascent descent
+-- to be checked: combinations like:
+--
+-- current="ABCD" with [A]=nothing, [BC]=ligature, [D]=single (applied to result of BC so funny index)
+--
+-- unlikely but possible
+
-- more checking against low level calls of functions
local utfbyte = utf.byte
-local format, gmatch, gsub, find, match, lower, strip = string.format, string.gmatch, string.gsub, string.find, string.match, string.lower, string.strip
+local gmatch, gsub, find, match, lower, strip = string.gmatch, string.gsub, string.find, string.match, string.lower, string.strip
local type, next, tonumber, tostring = type, next, tonumber, tostring
local abs = math.abs
-local insert = table.insert
-local lpegmatch = lpeg.match
-local reversed, concat, remove, sortedkeys = table.reversed, table.concat, table.remove, table.sortedkeys
+local reversed, concat, insert, remove, sortedkeys = table.reversed, table.concat, table.insert, table.remove, table.sortedkeys
local ioflush = io.flush
local fastcopy, tohash, derivetable = table.fastcopy, table.tohash, table.derive
local formatters = string.formatters
@@ -54,7 +58,7 @@ local otf = fonts.handlers.otf
otf.glists = { "gsub", "gpos" }
-otf.version = 2.812 -- beware: also sync font-mis.lua
+otf.version = 2.819 -- beware: also sync font-mis.lua and in mtx-fonts
otf.cache = containers.define("fonts", "otf", otf.version, true)
local hashes = fonts.hashes
@@ -283,13 +287,17 @@ local ordered_enhancers = {
"check glyphs",
"check metadata",
- "check extra features", -- after metadata
+-- "check extra features", -- after metadata
"prepare tounicode",
"check encoding", -- moved
"add duplicates",
+ "expand lookups", -- a temp hack awaiting the lua loader
+
+-- "check extra features", -- after metadata and duplicates
+
"cleanup tables",
"compact lookups",
@@ -386,6 +394,7 @@ function otf.load(filename,sub,featurefile) -- second argument (format) is gone
if featurefile then
name = name .. "@" .. file.removesuffix(file.basename(featurefile))
end
+ -- or: sub = tonumber(sub)
if sub == "" then
sub = false
end
@@ -442,6 +451,7 @@ function otf.load(filename,sub,featurefile) -- second argument (format) is gone
end
end
if reload then
+ starttiming("fontloader")
report_otf("loading %a, hash %a",filename,hash)
local fontdata, messages
if sub then
@@ -476,6 +486,7 @@ function otf.load(filename,sub,featurefile) -- second argument (format) is gone
data = {
size = size,
time = time,
+ subfont = sub,
format = otf_format(filename),
featuredata = featurefiles,
resources = {
@@ -512,7 +523,6 @@ function otf.load(filename,sub,featurefile) -- second argument (format) is gone
tounicodetable = Ct(splitter),
},
}
- starttiming(data)
report_otf("file size: %s", size)
enhancers.apply(data,filename,fontdata)
local packtime = { }
@@ -529,10 +539,10 @@ function otf.load(filename,sub,featurefile) -- second argument (format) is gone
if cleanup > 1 then
collectgarbage("collect")
end
- stoptiming(data)
+ stoptiming("fontloader")
if elapsedtime then -- not in generic
- report_otf("preprocessing and caching time %s, packtime %s",
- elapsedtime(data),packdata and elapsedtime(packtime) or 0)
+ report_otf("loading, optimizing, packing and caching time %s, pack time %s",
+ elapsedtime("fontloader"),packdata and elapsedtime(packtime) or 0)
end
close_font(fontdata) -- free memory
if cleanup > 3 then
@@ -543,6 +553,7 @@ function otf.load(filename,sub,featurefile) -- second argument (format) is gone
collectgarbage("collect")
end
else
+ stoptiming("fontloader")
data = nil
report_otf("loading failed due to read error")
end
@@ -589,6 +600,7 @@ function otf.load(filename,sub,featurefile) -- second argument (format) is gone
applyruntimefixes(filename,data)
end
enhance("add dimensions",data,filename,nil,false)
+enhance("check extra features",data,filename)
if trace_sequences then
showfeatureorder(data,filename)
end
@@ -697,7 +709,7 @@ local function somecopy(old) -- fast one
end
end
--- not setting hasitalics and class (when nil) during table cronstruction can save some mem
+-- not setting hasitalics and class (when nil) during table construction can save some mem
actions["prepare glyphs"] = function(data,filename,raw)
local tableversion = tonumber(raw.table_version) or 0
@@ -780,7 +792,7 @@ actions["prepare glyphs"] = function(data,filename,raw)
end
if not unicode or unicode == -1 then -- or unicode >= criterium then
if not name then
- name = format("u%06X.ctx",private)
+ name = formatters["u%06X.ctx"](private)
end
unicode = private
unicodes[name] = private
@@ -803,7 +815,7 @@ actions["prepare glyphs"] = function(data,filename,raw)
-- end
-- end
if not name then
- name = format("u%06X.ctx",unicode)
+ name = formatters["u%06X.ctx"](unicode)
end
unicodes[name] = unicode
nofunicodes = nofunicodes + 1
@@ -819,35 +831,35 @@ actions["prepare glyphs"] = function(data,filename,raw)
glyph = glyph,
}
descriptions[unicode] = description
-local altuni = glyph.altuni
-if altuni then
- -- local d
- for i=1,#altuni do
- local a = altuni[i]
- local u = a.unicode
- if u ~= unicode then
- local v = a.variant
- if v then
- -- tricky: no addition to d? needs checking but in practice such dups are either very simple
- -- shapes or e.g cjk with not that many features
- local vv = variants[v]
- if vv then
- vv[u] = unicode
- else -- xits-math has some:
- vv = { [u] = unicode }
- variants[v] = vv
- end
- -- elseif d then
- -- d[#d+1] = u
- -- else
- -- d = { u }
- end
- end
- end
- -- if d then
- -- duplicates[unicode] = d -- is this needed ?
- -- end
-end
+ local altuni = glyph.altuni
+ if altuni then
+ -- local d
+ for i=1,#altuni do
+ local a = altuni[i]
+ local u = a.unicode
+ if u ~= unicode then
+ local v = a.variant
+ if v then
+ -- tricky: no addition to d? needs checking but in practice such dups are either very simple
+ -- shapes or e.g cjk with not that many features
+ local vv = variants[v]
+ if vv then
+ vv[u] = unicode
+ else -- xits-math has some:
+ vv = { [u] = unicode }
+ variants[v] = vv
+ end
+ -- elseif d then
+ -- d[#d+1] = u
+ -- else
+ -- d = { u }
+ end
+ end
+ end
+ -- if d then
+ -- duplicates[unicode] = d -- is this needed ?
+ -- end
+ end
end
end
else
@@ -916,7 +928,7 @@ end
end
indices[index] = unicode
-- if not name then
- -- name = format("u%06X",unicode) -- u%06X.ctx
+ -- name = formatters["u%06X"](unicode) -- u%06X.ctx
-- end
descriptions[unicode] = {
-- width = glyph.width,
@@ -1089,7 +1101,7 @@ actions["add duplicates"] = function(data,filename,raw)
end
if u > 0 then -- and
local duplicate = table.copy(description) -- else packing problem
- duplicate.comment = format("copy of U+%05X", unicode)
+ duplicate.comment = formatters["copy of %U"](unicode)
descriptions[u] = duplicate
-- validduplicates[#validduplicates+1] = u
if trace_loading then
@@ -1107,16 +1119,16 @@ end
-- boundingbox: split into ht/dp takes more memory (larger tables and less sharing)
actions["analyze glyphs"] = function(data,filename,raw) -- maybe integrate this in the previous
- local descriptions = data.descriptions
- local resources = data.resources
- local metadata = data.metadata
- local properties = data.properties
- local hasitalics = false
- local widths = { }
- local marks = { } -- always present (saves checking)
+ local descriptions = data.descriptions
+ local resources = data.resources
+ local metadata = data.metadata
+ local properties = data.properties
+ local hasitalics = false
+ local widths = { }
+ local marks = { } -- always present (saves checking)
for unicode, description in next, descriptions do
- local glyph = description.glyph
- local italic = glyph.italic_correction
+ local glyph = description.glyph
+ local italic = glyph.italic_correction -- only in a math font (we also have vert/horiz)
if not italic then
-- skip
elseif italic == 0 then
@@ -1185,7 +1197,8 @@ end
actions["reorganize features"] = function(data,filename,raw) -- combine with other
local features = { }
data.resources.features = features
- for k, what in next, otf.glists do
+ for k=1,#otf.glists do
+ local what = otf.glists[k]
local dw = raw[what]
if dw then
local f = { }
@@ -1254,6 +1267,140 @@ actions["reorganize anchor classes"] = function(data,filename,raw)
end
end
+-- local function checklookups(data,missing,nofmissing)
+-- local resources = data.resources
+-- local unicodes = resources.unicodes
+-- local lookuptypes = resources.lookuptypes
+-- if not unicodes or not lookuptypes then
+-- return
+-- elseif nofmissing <= 0 then
+-- return
+-- end
+-- local descriptions = data.descriptions
+-- local private = fonts.constructors and fonts.constructors.privateoffset or 0xF0000 -- 0x10FFFF
+-- --
+-- local ns, nl = 0, 0
+
+-- local guess = { }
+-- -- helper
+-- local function check(gname,code,unicode)
+-- local description = descriptions[code]
+-- -- no need to add a self reference
+-- local variant = description.name
+-- if variant == gname then
+-- return
+-- end
+-- -- the variant already has a unicode (normally that results in a default tounicode to self)
+-- local unic = unicodes[variant]
+-- if unic == -1 or unic >= private or (unic >= 0xE000 and unic <= 0xF8FF) or unic == 0xFFFE or unic == 0xFFFF then
+-- -- no default mapping and therefore maybe no tounicode yet
+-- else
+-- return
+-- end
+-- -- the variant already has a tounicode
+-- if descriptions[code].unicode then
+-- return
+-- end
+-- -- add to the list
+-- local g = guess[variant]
+-- -- local r = overloads[unicode]
+-- -- if r then
+-- -- unicode = r.unicode
+-- -- end
+-- if g then
+-- g[gname] = unicode
+-- else
+-- guess[variant] = { [gname] = unicode }
+-- end
+-- end
+-- --
+-- for unicode, description in next, descriptions do
+-- local slookups = description.slookups
+-- if slookups then
+-- local gname = description.name
+-- for tag, data in next, slookups do
+-- local lookuptype = lookuptypes[tag]
+-- if lookuptype == "alternate" then
+-- for i=1,#data do
+-- check(gname,data[i],unicode)
+-- end
+-- elseif lookuptype == "substitution" then
+-- check(gname,data,unicode)
+-- end
+-- end
+-- end
+-- local mlookups = description.mlookups
+-- if mlookups then
+-- local gname = description.name
+-- for tag, list in next, mlookups do
+-- local lookuptype = lookuptypes[tag]
+-- if lookuptype == "alternate" then
+-- for i=1,#list do
+-- local data = list[i]
+-- for i=1,#data do
+-- check(gname,data[i],unicode)
+-- end
+-- end
+-- elseif lookuptype == "substitution" then
+-- for i=1,#list do
+-- check(gname,list[i],unicode)
+-- end
+-- end
+-- end
+-- end
+-- end
+-- -- resolve references
+-- local done = true
+-- while done do
+-- done = false
+-- for k, v in next, guess do
+-- if type(v) ~= "number" then
+-- for kk, vv in next, v do
+-- if vv == -1 or vv >= private or (vv >= 0xE000 and vv <= 0xF8FF) or vv == 0xFFFE or vv == 0xFFFF then
+-- local uu = guess[kk]
+-- if type(uu) == "number" then
+-- guess[k] = uu
+-- done = true
+-- end
+-- else
+-- guess[k] = vv
+-- done = true
+-- end
+-- end
+-- end
+-- end
+-- end
+-- -- wrap up
+-- local orphans = 0
+-- local guessed = 0
+-- for k, v in next, guess do
+-- if type(v) == "number" then
+-- descriptions[unicodes[k]].unicode = descriptions[v].unicode or v -- can also be a table
+-- guessed = guessed + 1
+-- else
+-- local t = nil
+-- local l = lower(k)
+-- local u = unicodes[l]
+-- if not u then
+-- orphans = orphans + 1
+-- elseif u == -1 or u >= private or (u >= 0xE000 and u <= 0xF8FF) or u == 0xFFFE or u == 0xFFFF then
+-- local unicode = descriptions[u].unicode
+-- if unicode then
+-- descriptions[unicodes[k]].unicode = unicode
+-- guessed = guessed + 1
+-- else
+-- orphans = orphans + 1
+-- end
+-- else
+-- orphans = orphans + 1
+-- end
+-- end
+-- end
+-- if trace_loading and orphans > 0 or guessed > 0 then
+-- report_otf("%s glyphs with no related unicode, %s guessed, %s orphans",guessed+orphans,guessed,orphans)
+-- end
+-- end
+
actions["prepare tounicode"] = function(data,filename,raw)
fonts.mappings.addtounicode(data,filename)
end
@@ -1288,8 +1435,9 @@ actions["reorganize subtables"] = function(data,filename,raw)
local lookups = { }
local chainedfeatures = { }
resources.sequences = sequences
- resources.lookups = lookups
- for _, what in next, otf.glists do
+ resources.lookups = lookups -- we also have lookups in data itself
+ for k=1,#otf.glists do
+ local what = otf.glists[k]
local dw = raw[what]
if dw then
for k=1,#dw do
@@ -1375,12 +1523,6 @@ actions["reorganize subtables"] = function(data,filename,raw)
end
end
--- test this:
---
--- for _, what in next, otf.glists do
--- raw[what] = nil
--- end
-
actions["prepare lookups"] = function(data,filename,raw)
local lookups = raw.lookups
if lookups then
@@ -1494,12 +1636,16 @@ end
actions["reorganize lookups"] = function(data,filename,raw) -- we could check for "" and n == 0
-- we prefer the before lookups in a normal order
if data.lookups then
- local splitter = data.helpers.tounicodetable
- local t_u_cache = { }
- local s_u_cache = t_u_cache -- string keys
- local t_h_cache = { }
- local s_h_cache = t_h_cache -- table keys (so we could use one cache)
- local r_u_cache = { } -- maybe shared
+ local helpers = data.helpers
+ local duplicates = data.resources.duplicates
+ local splitter = helpers.tounicodetable
+ local t_u_cache = { }
+ local s_u_cache = t_u_cache -- string keys
+ local t_h_cache = { }
+ local s_h_cache = t_h_cache -- table keys (so we could use one cache)
+ local r_u_cache = { } -- maybe shared
+ helpers.matchcache = t_h_cache -- so that we can add duplicates
+ --
for _, lookup in next, data.lookups do
local rules = lookup.rules
if rules then
@@ -1653,6 +1799,50 @@ actions["reorganize lookups"] = function(data,filename,raw) -- we could check fo
end
end
+actions["expand lookups"] = function(data,filename,raw) -- we could check for "" and n == 0
+ if data.lookups then
+ local cache = data.helpers.matchcache
+ if cache then
+ local duplicates = data.resources.duplicates
+ for key, hash in next, cache do
+ local done = nil
+ for key in next, hash do
+ local unicode = duplicates[key]
+ if not unicode then
+ -- no duplicate
+ elseif type(unicode) == "table" then
+ -- multiple duplicates
+ for i=1,#unicode do
+ local u = unicode[i]
+ if hash[u] then
+ -- already in set
+ elseif done then
+ done[u] = key
+ else
+ done = { [u] = key }
+ end
+ end
+ else
+ -- one duplicate
+ if hash[unicode] then
+ -- already in set
+ elseif done then
+ done[unicode] = key
+ else
+ done = { [unicode] = key }
+ end
+ end
+ end
+ if done then
+ for u in next, done do
+ hash[u] = true
+ end
+ end
+ end
+ end
+ end
+end
+
local function check_variants(unicode,the_variants,splitter,unicodes)
local variants = the_variants.variants
if variants then -- use splitter
@@ -1693,11 +1883,11 @@ local function check_variants(unicode,the_variants,splitter,unicodes)
parts = nil
end
end
- local italic_correction = the_variants.italic_correction
- if italic_correction and italic_correction == 0 then
- italic_correction = nil
+ local italic = the_variants.italic
+ if italic and italic == 0 then
+ italic = nil
end
- return variants, parts, italic_correction
+ return variants, parts, italic
end
actions["analyze math"] = function(data,filename,raw)
@@ -1706,15 +1896,16 @@ actions["analyze math"] = function(data,filename,raw)
local unicodes = data.resources.unicodes
local splitter = data.helpers.tounicodetable
for unicode, description in next, data.descriptions do
- local glyph = description.glyph
- local mathkerns = glyph.mathkern -- singular
- local horiz_variants = glyph.horiz_variants
- local vert_variants = glyph.vert_variants
- local top_accent = glyph.top_accent
- if mathkerns or horiz_variants or vert_variants or top_accent then
+ local glyph = description.glyph
+ local mathkerns = glyph.mathkern -- singular
+ local hvariants = glyph.horiz_variants
+ local vvariants = glyph.vert_variants
+ local accent = glyph.top_accent
+ local italic = glyph.italic_correction
+ if mathkerns or hvariants or vvariants or accent or italic then
local math = { }
- if top_accent then
- math.top_accent = top_accent
+ if accent then
+ math.accent = accent
end
if mathkerns then
for k, v in next, mathkerns do
@@ -1730,15 +1921,14 @@ actions["analyze math"] = function(data,filename,raw)
end
math.kerns = mathkerns
end
- if horiz_variants then
- math.horiz_variants, math.horiz_parts, math.horiz_italic_correction = check_variants(unicode,horiz_variants,splitter,unicodes)
+ if hvariants then
+ math.hvariants, math.hparts, math.hitalic = check_variants(unicode,hvariants,splitter,unicodes)
end
- if vert_variants then
- math.vert_variants, math.vert_parts, math.vert_italic_correction = check_variants(unicode,vert_variants,splitter,unicodes)
+ if vvariants then
+ math.vvariants, math.vparts, math.vitalic = check_variants(unicode,vvariants,splitter,unicodes)
end
- local italic_correction = description.italic
- if italic_correction and italic_correction ~= 0 then
- math.italic_correction = italic_correction
+ if italic and italic ~= 0 then
+ math.italic = italic
end
description.math = math
end
@@ -1903,7 +2093,7 @@ actions["merge kern classes"] = function(data,filename,raw)
report_otf("%s kern overloads ignored",ignored)
end
if blocked > 0 then
- report_otf("%s succesive kerns blocked",blocked)
+ report_otf("%s successive kerns blocked",blocked)
end
end
end
@@ -1940,18 +2130,21 @@ actions["check metadata"] = function(data,filename,raw)
end
end
--
+ local names = raw.names
+ --
if metadata.validation_state and table.contains(metadata.validation_state,"bad_ps_fontname") then
-- the ff library does a bit too much (and wrong) checking ... so we need to catch this
-- at least for now
local function valid(what)
- local names = raw.names
- for i=1,#names do
- local list = names[i]
- local names = list.names
- if names then
- local name = names[what]
- if name and valid_ps_name(name) then
- return name
+ if names then
+ for i=1,#names do
+ local list = names[i]
+ local names = list.names
+ if names then
+ local name = names[what]
+ if name and valid_ps_name(name) then
+ return name
+ end
end
end
end
@@ -1975,6 +2168,33 @@ actions["check metadata"] = function(data,filename,raw)
check("fullname")
end
--
+ if names then
+ local psname = metadata.psname
+ if not psname or psname == "" then
+ for i=1,#names do
+ local name = names[i]
+ -- Currently we use the same restricted search as in the new context (specific) font loader
+ -- but we might add more lang checks (it worked ok in the new loaded so now we're in sync)
+ -- This check here is also because there are (esp) cjk fonts out there with psnames different
+ -- from fontnames (gives a bad lookup in backend).
+ if lower(name.lang) == "english (us)" then
+ local specification = name.names
+ if specification then
+ local postscriptname = specification.postscriptname
+ if postscriptname then
+ psname = postscriptname
+ end
+ end
+ end
+ break
+ end
+ end
+ if psname ~= metadata.fontname then
+ report_otf("fontname %a, fullname %a, psname %a",metadata.fontname,metadata.fullname,psname)
+ end
+ metadata.psname = psname
+ end
+ --
end
actions["cleanup tables"] = function(data,filename,raw)
@@ -2000,7 +2220,9 @@ end
-- we can share { } as it is never set
---- ligatures have an extra specification.char entry that we don't use
+-- ligatures have an extra specification.char entry that we don't use
+
+-- mlookups only with pairs and ligatures
actions["reorganize glyph lookups"] = function(data,filename,raw)
local resources = data.resources
@@ -2081,14 +2303,14 @@ actions["reorganize glyph lookups"] = function(data,filename,raw)
if mlookups then
description.mlookups = mlookups
end
+ -- description.lookups = nil
end
end
-
end
local zero = { 0, 0 }
-actions["reorganize glyph anchors"] = function(data,filename,raw) -- when we replace inplace we safe entries
+actions["reorganize glyph anchors"] = function(data,filename,raw)
local descriptions = data.descriptions
for unicode, description in next, descriptions do
local anchors = description.glyph.anchors
@@ -2311,7 +2533,7 @@ end
-- we cannot share descriptions as virtual fonts might extend them (ok,
-- we could use a cache with a hash
--
--- we already assing an empty tabel to characters as we can add for
+-- we already assign an empty tabel to characters as we can add for
-- instance protruding info and loop over characters; one is not supposed
-- to change descriptions and if one does so one should make a copy!
@@ -2334,10 +2556,14 @@ local function copytotfm(data,cache_id)
local spaceunits = 500
local spacer = "space"
local designsize = metadata.designsize or metadata.design_size or 100
+ local minsize = metadata.minsize or metadata.design_range_bottom or designsize
+ local maxsize = metadata.maxsize or metadata.design_range_top or designsize
local mathspecs = metadata.math
--
if designsize == 0 then
designsize = 100
+ minsize = 100
+ maxsize = 100
end
if mathspecs then
for name, value in next, mathspecs do
@@ -2355,8 +2581,11 @@ local function copytotfm(data,cache_id)
local m = d.math
if m then
-- watch out: luatex uses horiz_variants for the parts
- local variants = m.horiz_variants
- local parts = m.horiz_parts
+ --
+ local italic = m.italic
+ --
+ local variants = m.hvariants
+ local parts = m.hparts
-- local done = { [unicode] = true }
if variants then
local c = character
@@ -2373,9 +2602,11 @@ local function copytotfm(data,cache_id)
c.horiz_variants = parts
elseif parts then
character.horiz_variants = parts
+ italic = m.hitalic
end
- local variants = m.vert_variants
- local parts = m.vert_parts
+ --
+ local variants = m.vvariants
+ local parts = m.vparts
-- local done = { [unicode] = true }
if variants then
local c = character
@@ -2392,15 +2623,18 @@ local function copytotfm(data,cache_id)
c.vert_variants = parts
elseif parts then
character.vert_variants = parts
+ italic = m.vitalic
end
- local italic_correction = m.vert_italic_correction
- if italic_correction then
- character.vert_italic_correction = italic_correction -- was c.
+ --
+ if italic and italic ~= 0 then
+ character.italic = italic -- overload
end
- local top_accent = m.top_accent
- if top_accent then
- character.top_accent = top_accent
+ --
+ local accent = m.accent
+ if accent then
+ character.accent = accent
end
+ --
local kerns = m.kerns
if kerns then
character.mathkerns = kerns
@@ -2413,16 +2647,16 @@ local function copytotfm(data,cache_id)
local filename = constructors.checkedfilename(resources)
local fontname = metadata.fontname
local fullname = metadata.fullname or fontname
- local psname = fontname or fullname
- local units = metadata.units_per_em or 1000
+ local psname = metadata.psname or fontname or fullname
+ local units = metadata.units or metadata.units_per_em or 1000
--
if units == 0 then -- catch bugs in fonts
units = 1000 -- maybe 2000 when ttf
- metadata.units_per_em = 1000
+ metadata.units = 1000
report_otf("changing %a units to %a",0,units)
end
--
- local monospaced = metadata.isfixedpitch or (pfminfo.panose and pfminfo.panose.proportion == "Monospaced")
+ local monospaced = metadata.monospaced or metadata.isfixedpitch or (pfminfo.panose and pfminfo.panose.proportion == "Monospaced")
local charwidth = pfminfo.avgwidth -- or unset
local charxheight = pfminfo.os2_xheight and pfminfo.os2_xheight > 0 and pfminfo.os2_xheight
-- charwidth = charwidth * units/1000
@@ -2492,17 +2726,16 @@ local function copytotfm(data,cache_id)
end
end
--
- parameters.designsize = (designsize/10)*65536
- parameters.ascender = abs(metadata.ascent or 0)
- parameters.descender = abs(metadata.descent or 0)
- parameters.units = units
+ parameters.designsize = (designsize/10)*65536
+ parameters.minsize = (minsize /10)*65536
+ parameters.maxsize = (maxsize /10)*65536
+ parameters.ascender = abs(metadata.ascender or metadata.ascent or 0)
+ parameters.descender = abs(metadata.descender or metadata.descent or 0)
+ parameters.units = units
--
properties.space = spacer
properties.encodingbytes = 2
properties.format = data.format or otf_format(filename) or formats.otf
--- if units ~= 1000 and format ~= "truetype" then
--- properties.format = "truetype"
--- end
properties.noglyphnames = true
properties.filename = filename
properties.fontname = fontname
@@ -2703,3 +2936,111 @@ function otf.scriptandlanguage(tfmdata,attr)
local properties = tfmdata.properties
return properties.script or "dflt", properties.language or "dflt"
end
+
+-- a little bit of abstraction
+
+local function justset(coverage,unicode,replacement)
+ coverage[unicode] = replacement
+end
+
+otf.coverup = {
+ stepkey = "subtables",
+ actions = {
+ substitution = justset,
+ alternate = justset,
+ multiple = justset,
+ ligature = justset,
+ kern = justset,
+ },
+ register = function(coverage,lookuptype,format,feature,n,descriptions,resources)
+ local name = formatters["ctx_%s_%s"](feature,n)
+ if lookuptype == "kern" then
+ resources.lookuptypes[name] = "position"
+ else
+ resources.lookuptypes[name] = lookuptype
+ end
+ for u, c in next, coverage do
+ local description = descriptions[u]
+ local slookups = description.slookups
+ if slookups then
+ slookups[name] = c
+ else
+ description.slookups = { [name] = c }
+ end
+-- inspect(feature,description)
+ end
+ return name
+ end
+}
+
+-- moved from font-oth.lua
+
+local function getgsub(tfmdata,k,kind)
+ local description = tfmdata.descriptions[k]
+ if description then
+ local slookups = description.slookups -- we assume only slookups (we can always extend)
+ if slookups then
+ local shared = tfmdata.shared
+ local rawdata = shared and shared.rawdata
+ if rawdata then
+ local lookuptypes = rawdata.resources.lookuptypes
+ if lookuptypes then
+ local properties = tfmdata.properties
+ -- we could cache these
+ local validlookups, lookuplist = otf.collectlookups(rawdata,kind,properties.script,properties.language)
+ if validlookups then
+ for l=1,#lookuplist do
+ local lookup = lookuplist[l]
+ local found = slookups[lookup]
+ if found then
+ return found, lookuptypes[lookup]
+ end
+ end
+ end
+ end
+ end
+ end
+ end
+end
+
+otf.getgsub = getgsub -- returns value, gsub_kind
+
+function otf.getsubstitution(tfmdata,k,kind,value)
+ local found, kind = getgsub(tfmdata,k,kind)
+ if not found then
+ --
+ elseif kind == "substitution" then
+ return found
+ elseif kind == "alternate" then
+ local choice = tonumber(value) or 1 -- no random here (yet)
+ return found[choice] or found[1] or k
+ end
+ return k
+end
+
+otf.getalternate = otf.getsubstitution
+
+function otf.getmultiple(tfmdata,k,kind)
+ local found, kind = getgsub(tfmdata,k,kind)
+ if found and kind == "multiple" then
+ return found
+ end
+ return { k }
+end
+
+function otf.getkern(tfmdata,left,right,kind)
+ local kerns = getgsub(tfmdata,left,kind or "kern",true) -- for now we use getsub
+ if kerns then
+ local found = kerns[right]
+ local kind = type(found)
+ if kind == "table" then
+ found = found[1][3] -- can be more clever
+ elseif kind ~= "number" then
+ found = false
+ end
+ if found then
+ return found * tfmdata.parameters.factor
+ end
+ end
+ return 0
+end
diff --git a/src/fontloader/misc/fontloader-font-otp.lua b/src/fontloader/misc/fontloader-font-otp.lua
index ebf36ed..91bd05b 100644
--- a/src/fontloader/misc/fontloader-font-otp.lua
+++ b/src/fontloader/misc/fontloader-font-otp.lua
@@ -12,9 +12,8 @@ if not modules then modules = { } end modules ['font-otp'] = {
--
-- unless we sort all hashes we can get a different pack order (no big deal but size can differ)
-local next, type = next, type
+local next, type, tostring = next, type, tostring
local sort, concat = table.sort, table.concat
-local sortedhash = table.sortedhash
local trace_packing = false trackers.register("otf.packing", function(v) trace_packing = v end)
local trace_loading = false trackers.register("otf.loading", function(v) trace_loading = v end)
@@ -148,6 +147,7 @@ end
-- we then need to sort more thanks to random hashing
local function packdata(data)
+
if data then
-- stripdata(data)
local h, t, c = { }, { }, { }
@@ -537,6 +537,7 @@ local unpacked_mt = {
}
local function unpackdata(data)
+
if data then
local tables = data.tables
if tables then
diff --git a/src/fontloader/misc/fontloader-font-tfm.lua b/src/fontloader/misc/fontloader-font-tfm.lua
index ab03788..401dc83 100644
--- a/src/fontloader/misc/fontloader-font-tfm.lua
+++ b/src/fontloader/misc/fontloader-font-tfm.lua
@@ -24,6 +24,7 @@ local constructors = fonts.constructors
local encodings = fonts.encodings
local tfm = constructors.newhandler("tfm")
+tfm.version = 1.000
local tfmfeatures = constructors.newfeatures("tfm")
local registertfmfeature = tfmfeatures.register
diff --git a/src/fontloader/misc/fontloader-fonts-cbk.lua b/src/fontloader/misc/fontloader-fonts-cbk.lua
index 81b5b6e..9da8151 100644
--- a/src/fontloader/misc/fontloader-fonts-cbk.lua
+++ b/src/fontloader/misc/fontloader-fonts-cbk.lua
@@ -160,12 +160,31 @@ function nodes.handlers.nodepass(head)
local range = basefonts[i]
local start = range[1]
local stop = range[2]
- if stop then
- start, stop = ligaturing(start,stop)
- start, stop = kerning(start,stop)
- elseif start then
- start = ligaturing(start)
- start = kerning(start)
+ -- maybe even: if start and start ~= stop then
+ if start or stop then
+ local prev = nil
+ local next = nil
+ local front = start == head
+ if stop then
+ next = stop.next
+ start, stop = ligaturing(start,stop)
+ start, stop = kerning(start,stop)
+ elseif start then
+ prev = start.prev
+ start = ligaturing(start)
+ start = kerning(start)
+ end
+ if prev then
+ start.prev = prev
+ prev.next = start
+ end
+ if next then
+ stop.next = next
+ next.prev = stop
+ end
+ if front then
+ head = start
+ end
end
end
end
@@ -176,7 +195,7 @@ function nodes.handlers.nodepass(head)
end
function nodes.handlers.basepass(head)
- if not basepass then
+ if basepass then
head = ligaturing(head)
head = kerning(head)
end
diff --git a/src/fontloader/misc/fontloader-fonts-inj.lua b/src/fontloader/misc/fontloader-fonts-inj.lua
index 332e920..36781f7 100644
--- a/src/fontloader/misc/fontloader-fonts-inj.lua
+++ b/src/fontloader/misc/fontloader-fonts-inj.lua
@@ -8,7 +8,16 @@ if not modules then modules = { } end modules ['font-inj'] = {
-- This property based variant is not faster but looks nicer than the attribute one. We
-- need to use rawget (which is apbout 4 times slower than a direct access but we cannot
--- get/set that one for our purpose!
+-- get/set that one for our purpose! This version does a bit more with discretionaries
+-- (and Kai has tested it with his collection of weird fonts.)
+
+-- There is some duplicate code here (especially in the the pre/post/replace branches) but
+-- we go for speed. We could store a list of glyph and mark nodes when registering but it's
+-- cleaner to have an identification pass here. Also, I need to keep tracing in mind so
+-- being too clever here is dangerous.
+
+-- The subtype test is not needed as there will be no (new) properties set, given that we
+-- reset the properties.
if not nodes.properties then return end
@@ -80,8 +89,7 @@ function injections.resetcounts()
keepregisteredcounts = false
end
--- We need to make sure that a possible metatable will not kick in
--- unexpectedly.
+-- We need to make sure that a possible metatable will not kick in unexpectedly.
function injections.reset(n)
local p = rawget(properties,n)
@@ -146,7 +154,8 @@ end
function injections.setcursive(start,nxt,factor,rlmode,exit,entry,tfmstart,tfmnext) -- hm: nuts or nodes
local dx = factor*(exit[1]-entry[1])
local dy = -factor*(exit[2]-entry[2])
- local ws, wn = tfmstart.width, tfmnext.width
+ local ws = tfmstart.width
+ local wn = tfmnext.width
nofregisteredcursives = nofregisteredcursives + 1
if rlmode < 0 then
dx = -(dx + wn)
@@ -195,7 +204,10 @@ function injections.setcursive(start,nxt,factor,rlmode,exit,entry,tfmstart,tfmne
end
function injections.setpair(current,factor,rlmode,r2lflag,spec,injection) -- r2lflag & tfmchr not used
- local x, y, w, h = factor*spec[1], factor*spec[2], factor*spec[3], factor*spec[4]
+ local x = factor*spec[1]
+ local y = factor*spec[2]
+ local w = factor*spec[3]
+ local h = factor*spec[4]
if x ~= 0 or w ~= 0 or y ~= 0 or h ~= 0 then -- okay?
local yoffset = y - h
local leftkern = x -- both kerns are set in a pair kern compared
@@ -205,9 +217,12 @@ function injections.setpair(current,factor,rlmode,r2lflag,spec,injection) -- r2l
if rlmode and rlmode < 0 then
leftkern, rightkern = rightkern, leftkern
end
+ if not injection then
+ injection = "injections"
+ end
local p = rawget(properties,current)
if p then
- local i = rawget(p,"injections")
+ local i = rawget(p,injection)
if i then
if leftkern ~= 0 then
i.leftkern = (i.leftkern or 0) + leftkern
@@ -219,19 +234,19 @@ function injections.setpair(current,factor,rlmode,r2lflag,spec,injection) -- r2l
i.yoffset = (i.yoffset or 0) + yoffset
end
elseif leftkern ~= 0 or rightkern ~= 0 then
- p.injections = {
+ p[injection] = {
leftkern = leftkern,
rightkern = rightkern,
yoffset = yoffset,
}
else
- p.injections = {
+ p[injection] = {
yoffset = yoffset,
}
end
elseif leftkern ~= 0 or rightkern ~= 0 then
properties[current] = {
- injections = {
+ [injection] = {
leftkern = leftkern,
rightkern = rightkern,
yoffset = yoffset,
@@ -239,7 +254,7 @@ function injections.setpair(current,factor,rlmode,r2lflag,spec,injection) -- r2l
}
else
properties[current] = {
- injections = {
+ [injection] = {
yoffset = yoffset,
},
}
@@ -250,10 +265,9 @@ function injections.setpair(current,factor,rlmode,r2lflag,spec,injection) -- r2l
return x, y, w, h -- no bound
end
--- this needs checking for rl < 0 but it is unlikely that a r2l script
--- uses kernclasses between glyphs so we're probably safe (KE has a
--- problematic font where marks interfere with rl < 0 in the previous
--- case)
+-- This needs checking for rl < 0 but it is unlikely that a r2l script uses kernclasses between
+-- glyphs so we're probably safe (KE has a problematic font where marks interfere with rl < 0 in
+-- the previous case)
function injections.setkern(current,factor,rlmode,x,injection)
local dx = factor * x
@@ -285,7 +299,7 @@ function injections.setkern(current,factor,rlmode,x,injection)
end
end
-function injections.setmark(start,base,factor,rlmode,ba,ma,tfmbase) -- ba=baseanchor, ma=markanchor
+function injections.setmark(start,base,factor,rlmode,ba,ma,tfmbase,mkmk) -- ba=baseanchor, ma=markanchor
local dx, dy = factor*(ba[1]-ma[1]), factor*(ba[2]-ma[2])
nofregisteredmarks = nofregisteredmarks + 1
-- markanchors[nofregisteredmarks] = base
@@ -293,14 +307,20 @@ function injections.setmark(start,base,factor,rlmode,ba,ma,tfmbase) -- ba=basean
dx = tfmbase.width - dx -- see later commented ox
end
local p = rawget(properties,start)
+ -- hm, dejavu serif does a sloppy mark2mark before mark2base
if p then
local i = rawget(p,"injections")
if i then
- i.markx = dx
- i.marky = dy
- i.markdir = rlmode or 0
- i.markbase = nofregisteredmarks
- i.markbasenode = base
+ if i.markmark then
+ -- out of order mkmk: yes or no or option
+ else
+ i.markx = dx
+ i.marky = dy
+ i.markdir = rlmode or 0
+ i.markbase = nofregisteredmarks
+ i.markbasenode = base
+ i.markmark = mkmk
+ end
else
p.injections = {
markx = dx,
@@ -308,6 +328,7 @@ function injections.setmark(start,base,factor,rlmode,ba,ma,tfmbase) -- ba=basean
markdir = rlmode or 0,
markbase = nofregisteredmarks,
markbasenode = base,
+ markmark = mkmk,
}
end
else
@@ -318,6 +339,7 @@ function injections.setmark(start,base,factor,rlmode,ba,ma,tfmbase) -- ba=basean
markdir = rlmode or 0,
markbase = nofregisteredmarks,
markbasenode = base,
+ markmark = mkmk,
},
}
end
@@ -430,30 +452,36 @@ local function show_result(head)
end
end
--- we could also check for marks here but maybe not all are registered (needs checking)
-
-local function collect_glyphs_1(head)
- local glyphs, nofglyphs = { }, 0
- local marks, nofmarks = { }, 0
+local function collect_glyphs(head,offsets)
+ local glyphs, glyphi, nofglyphs = { }, { }, 0
+ local marks, marki, nofmarks = { }, { }, 0
local nf, tm = nil, nil
- for n in traverse_id(glyph_code,head) do -- only needed for relevant fonts
- if getsubtype(n) < 256 then
- local f = getfont(n)
- if f ~= nf then
- nf = f
- tm = fontdata[nf].resources.marks -- other hash in ctx
- end
- if tm and tm[getchar(n)] then
- nofmarks = nofmarks + 1
- marks[nofmarks] = n
- else
- nofglyphs = nofglyphs + 1
- glyphs[nofglyphs] = n
+ local n = head
+
+ local function identify(n,what)
+ local f = getfont(n)
+ if f ~= nf then
+ nf = f
+ -- other hash in ctx:
+ tm = fontdata[nf].resources
+ if tm then
+ tm = tm.marks
end
+ end
+ if tm and tm[getchar(n)] then
+ nofmarks = nofmarks + 1
+ marks[nofmarks] = n
+ marki[nofmarks] = "injections"
+ else
+ nofglyphs = nofglyphs + 1
+ glyphs[nofglyphs] = n
+ glyphi[nofglyphs] = what
+ end
+ if offsets then
-- yoffsets can influence curs steps
local p = rawget(properties,n)
if p then
- local i = rawget(p,"injections")
+ local i = rawget(p,what)
if i then
local yoffset = i.yoffset
if yoffset and yoffset ~= 0 then
@@ -463,38 +491,50 @@ local function collect_glyphs_1(head)
end
end
end
- return glyphs, nofglyphs, marks, nofmarks
-end
-local function collect_glyphs_2(head)
- local glyphs, nofglyphs = { }, 0
- local marks, nofmarks = { }, 0
- local nf, tm = nil, nil
- for n in traverse_id(glyph_code,head) do
- if getsubtype(n) < 256 then
- local f = getfont(n)
- if f ~= nf then
- nf = f
- tm = fontdata[nf].resources.marks -- other hash in ctx
- end
- if tm and tm[getchar(n)] then
- nofmarks = nofmarks + 1
- marks[nofmarks] = n
- else
- nofglyphs = nofglyphs + 1
- glyphs[nofglyphs] = n
- end
+ while n do -- only needed for relevant fonts
+ local id = getid(n)
+ if id == glyph_code then
+ identify(n,"injections")
+ elseif id == disc_code then
+ local d = getfield(n,"pre")
+ if d then
+ for n in traverse_id(glyph_code,d) do
+ if getsubtype(n) < 256 then
+ identify(n,"preinjections")
+ end
+ end
+ end
+ local d = getfield(n,"post")
+ if d then
+ for n in traverse_id(glyph_code,d) do
+ if getsubtype(n) < 256 then
+ identify(n,"postinjections")
+ end
+ end
+ end
+ local d = getfield(n,"replace")
+ if d then
+ for n in traverse_id(glyph_code,d) do
+ if getsubtype(n) < 256 then
+ identify(n,"replaceinjections")
+ end
+ end
+ end
end
+ n = getnext(n)
end
- return glyphs, nofglyphs, marks, nofmarks
+
+ return glyphs, glyphi, nofglyphs, marks, marki, nofmarks
end
-local function inject_marks(marks,nofmarks)
+local function inject_marks(marks,marki,nofmarks)
for i=1,nofmarks do
- local n = marks[i]
+ local n = marks[i]
local pn = rawget(properties,n)
if pn then
- pn = rawget(pn,"injections")
+ local ni = marki[i]
+ local pn = rawget(pn,ni)
if pn then
local p = pn.markbasenode
if p then
@@ -503,7 +543,7 @@ local function inject_marks(marks,nofmarks)
local rightkern = nil
local pp = rawget(properties,p)
if pp then
- pp = rawget(pp,"injections")
+ pp = rawget(pp,ni)
if pp then
rightkern = pp.rightkern
end
@@ -516,13 +556,22 @@ local function inject_marks(marks,nofmarks)
else
-- kern(x) glyph(p) kern(w-x) mark(n)
-- ox = px - getfield(p,"width") + pn.markx - pp.leftkern
- local leftkern = pp.leftkern
- if leftkern then
- ox = px - pn.markx
+ --
+ -- According to Kai we don't need to handle leftkern here but I'm
+ -- pretty sure I've run into a case where it was needed so maybe
+ -- some day we need something more clever here.
+ --
+ if false then
+ -- a mark with kerning
+ local leftkern = pp.leftkern
+ if leftkern then
+ ox = px - pn.markx - leftkern
+ else
+ ox = px - pn.markx
+ end
else
- ox = px - pn.markx - leftkern
+ ox = px - pn.markx
end
--- report_injections("l2r case 1: %p",ox)
end
else
-- we need to deal with fonts that have marks with width
@@ -548,12 +597,13 @@ local function inject_marks(marks,nofmarks)
setfield(n,"xoffset",ox)
--
local py = getfield(p,"yoffset")
- local oy = 0
- if marks[p] then
- oy = py + pn.marky
- else
- oy = getfield(n,"yoffset") + py + pn.marky
- end
+-- local oy = 0
+-- if marks[p] then
+-- oy = py + pn.marky
+-- else
+-- oy = getfield(n,"yoffset") + py + pn.marky
+-- end
+ local oy = getfield(n,"yoffset") + py + pn.marky
setfield(n,"yoffset",oy)
else
-- normally this can't happen (only when in trace mode which is a special case anyway)
@@ -564,14 +614,14 @@ local function inject_marks(marks,nofmarks)
end
end
-local function inject_cursives(glyphs,nofglyphs)
+local function inject_cursives(glyphs,glyphi,nofglyphs)
local cursiveanchor, lastanchor = nil, nil
local minc, maxc, last = 0, 0, nil
for i=1,nofglyphs do
- local n = glyphs[i]
+ local n = glyphs[i]
local pn = rawget(properties,n)
if pn then
- pn = rawget(pn,"injections")
+ pn = rawget(pn,glyphi[i])
end
if pn then
local cursivex = pn.cursivex
@@ -630,7 +680,7 @@ local function inject_cursives(glyphs,nofglyphs)
-- if maxc > 0 and not cursiveanchor then
-- local ny = getfield(n,"yoffset")
-- for i=maxc,minc,-1 do
- -- local ti = glyphs[i]
+ -- local ti = glyphs[i][1]
-- ny = ny + properties[ti].cursivedy
-- setfield(ti,"yoffset",ny) -- why not add ?
-- end
@@ -647,23 +697,67 @@ local function inject_cursives(glyphs,nofglyphs)
end
end
-local function inject_kerns(head,list,length)
- -- todo: pre/post/replace
+-- G +D-pre G
+-- D-post+
+-- +D-replace+
+--
+-- G +D-pre +D-pre
+-- D-post +D-post
+-- +D-replace +D-replace
+
+local function inject_kerns(head,glist,ilist,length) -- not complete ! compare with inject_kerns_only (but unlikely disc here)
for i=1,length do
- local n = list[i]
+ local n = glist[i]
local pn = rawget(properties,n)
if pn then
- local i = rawget(pn,"injections")
- if i then
- local leftkern = i.leftkern
- if leftkern and leftkern ~= 0 then
- insert_node_before(head,n,newkern(leftkern)) -- type 0/2
- end
- local rightkern = i.rightkern
- if rightkern and rightkern ~= 0 then
- insert_node_after(head,n,newkern(rightkern)) -- type 0/2
- end
- end
+ local dp = nil
+ local dr = nil
+ local ni = ilist[i]
+ local p = nil
+ if ni == "injections" then
+ p = getprev(n)
+ if p then
+ local id = getid(p)
+ if id == disc_code then
+ dp = getfield(p,"post")
+ dr = getfield(p,"replace")
+ end
+ end
+ end
+ if dp then
+ local i = rawget(pn,"postinjections")
+ if i then
+ local leftkern = i.leftkern
+ if leftkern and leftkern ~= 0 then
+ local t = find_tail(dp)
+ insert_node_after(dp,t,newkern(leftkern))
+ setfield(p,"post",dp) -- currently we need to force a tail refresh
+ end
+ end
+ end
+ if dr then
+ local i = rawget(pn,"replaceinjections")
+ if i then
+ local leftkern = i.leftkern
+ if leftkern and leftkern ~= 0 then
+ local t = find_tail(dr)
+ insert_node_after(dr,t,newkern(leftkern))
+ setfield(p,"replace",dr) -- currently we need to force a tail refresh
+ end
+ end
+ else
+ local i = rawget(pn,ni)
+ if i then
+ local leftkern = i.leftkern
+ if leftkern and leftkern ~= 0 then
+ insert_node_before(head,n,newkern(leftkern)) -- type 0/2
+ end
+ local rightkern = i.rightkern
+ if rightkern and rightkern ~= 0 then
+ insert_node_after(head,n,newkern(rightkern)) -- type 0/2
+ end
+ end
+ end
end
end
end
@@ -673,23 +767,18 @@ local function inject_everything(head,where)
if trace_injections then
trace(head,"everything")
end
- local glyphs, nofglyphs, marks, nofmarks
- if nofregisteredpairs > 0 then
- glyphs, nofglyphs, marks, nofmarks = collect_glyphs_1(head)
- else
- glyphs, nofglyphs, marks, nofmarks = collect_glyphs_2(head)
- end
+ local glyphs, glyphi, nofglyphs, marks, marki, nofmarks = collect_glyphs(head,nofregisteredpairs > 0)
if nofglyphs > 0 then
if nofregisteredcursives > 0 then
- inject_cursives(glyphs,nofglyphs)
+ inject_cursives(glyphs,glyphi,nofglyphs)
end
if nofregisteredmarks > 0 then -- and nofmarks > 0
- inject_marks(marks,nofmarks)
+ inject_marks(marks,marki,nofmarks)
end
- inject_kerns(head,glyphs,nofglyphs)
+ inject_kerns(head,glyphs,glyphi,nofglyphs)
end
if nofmarks > 0 then
- inject_kerns(head,marks,nofmarks)
+ inject_kerns(head,marks,marki,nofmarks)
end
if keepregisteredcounts then
keepregisteredcounts = false
@@ -702,13 +791,21 @@ local function inject_everything(head,where)
return tonode(head), true
end
+-- G +D-pre G
+-- D-post+
+-- +D-replace+
+--
+-- G +D-pre +D-pre
+-- D-post +D-post
+-- +D-replace +D-replace
+
local function inject_kerns_only(head,where)
head = tonut(head)
if trace_injections then
trace(head,"kerns")
end
local n = head
- local p = nil
+ local p = nil -- disc node when non-nil
while n do
local id = getid(n)
if id == glyph_code then
@@ -724,6 +821,7 @@ local function inject_kerns_only(head,where)
if leftkern and leftkern ~= 0 then
local t = find_tail(d)
insert_node_after(d,t,newkern(leftkern))
+ setfield(p,"post",d) -- currently we need to force a tail refresh
end
end
end
@@ -735,6 +833,7 @@ local function inject_kerns_only(head,where)
if leftkern and leftkern ~= 0 then
local t = find_tail(d)
insert_node_after(d,t,newkern(leftkern))
+ setfield(p,"replace",d) -- currently we need to force a tail refresh
end
end
else
@@ -747,6 +846,7 @@ local function inject_kerns_only(head,where)
end
end
else
+ -- this is the most common case
local i = rawget(pn,"injections")
if i then
local leftkern = i.leftkern
@@ -756,8 +856,6 @@ local function inject_kerns_only(head,where)
end
end
end
- else
- break
end
p = nil
elseif id == disc_code then
@@ -812,7 +910,7 @@ local function inject_kerns_only(head,where)
local h = d
for n in traverse_id(glyph_code,d) do
if getsubtype(n) < 256 then
- local pn = rawget(properties,n) -- why can it be empty { }
+ local pn = rawget(properties,n)
if pn then
local i = rawget(pn,"replaceinjections")
if i then
@@ -850,9 +948,8 @@ local function inject_pairs_only(head,where)
if trace_injections then
trace(head,"pairs")
end
- --
local n = head
- local p = nil
+ local p = nil -- disc node when non-nil
while n do
local id = getid(n)
if id == glyph_code then
@@ -868,6 +965,7 @@ local function inject_pairs_only(head,where)
if leftkern and leftkern ~= 0 then
local t = find_tail(d)
insert_node_after(d,t,newkern(leftkern))
+ setfield(p,"post",d) -- currently we need to force a tail refresh
end
-- local rightkern = i.rightkern
-- if rightkern and rightkern ~= 0 then
@@ -884,6 +982,7 @@ local function inject_pairs_only(head,where)
if leftkern and leftkern ~= 0 then
local t = find_tail(d)
insert_node_after(d,t,newkern(leftkern))
+ setfield(p,"replace",d) -- currently we need to force a tail refresh
end
-- local rightkern = i.rightkern
-- if rightkern and rightkern ~= 0 then
@@ -909,24 +1008,22 @@ local function inject_pairs_only(head,where)
-- this is the most common case
local i = rawget(pn,"injections")
if i then
- local yoffset = i.yoffset
- if yoffset and yoffset ~= 0 then
- setfield(n,"yoffset",yoffset)
- end
local leftkern = i.leftkern
if leftkern and leftkern ~= 0 then
- insert_node_before(head,n,newkern(leftkern))
+ head = insert_node_before(head,n,newkern(leftkern))
end
local rightkern = i.rightkern
if rightkern and rightkern ~= 0 then
insert_node_after(head,n,newkern(rightkern))
n = getnext(n) -- to be checked
end
+ local yoffset = i.yoffset
+ if yoffset and yoffset ~= 0 then
+ setfield(n,"yoffset",yoffset)
+ end
end
end
end
- else
- break
end
p = nil
elseif id == disc_code then
@@ -935,16 +1032,12 @@ local function inject_pairs_only(head,where)
local h = d
for n in traverse_id(glyph_code,d) do
if getsubtype(n) < 256 then
- local p = rawget(properties,n)
- if p then
- local i = rawget(p,"preinjections")
+ local pn = rawget(properties,n)
+ if pn then
+ local i = rawget(pn,"preinjections")
if i then
- local yoffset = i.yoffset
- if yoffset and yoffset ~= 0 then
- setfield(n,"yoffset",yoffset)
- end
local leftkern = i.leftkern
- if leftkern ~= 0 then
+ if leftkern and leftkern ~= 0 then
h = insert_node_before(h,n,newkern(leftkern))
end
local rightkern = i.rightkern
@@ -952,6 +1045,10 @@ local function inject_pairs_only(head,where)
insert_node_after(head,n,newkern(rightkern))
n = getnext(n) -- to be checked
end
+ local yoffset = i.yoffset
+ if yoffset and yoffset ~= 0 then
+ setfield(n,"yoffset",yoffset)
+ end
end
end
else
@@ -967,14 +1064,10 @@ local function inject_pairs_only(head,where)
local h = d
for n in traverse_id(glyph_code,d) do
if getsubtype(n) < 256 then
- local p = rawget(properties,n)
- if p then
- local i = rawget(p,"postinjections")
+ local pn = rawget(properties,n)
+ if pn then
+ local i = rawget(pn,"postinjections")
if i then
- local yoffset = i.yoffset
- if yoffset and yoffset ~= 0 then
- setfield(n,"yoffset",yoffset)
- end
local leftkern = i.leftkern
if leftkern and leftkern ~= 0 then
h = insert_node_before(h,n,newkern(leftkern))
@@ -984,6 +1077,10 @@ local function inject_pairs_only(head,where)
insert_node_after(head,n,newkern(rightkern))
n = getnext(n) -- to be checked
end
+ local yoffset = i.yoffset
+ if yoffset and yoffset ~= 0 then
+ setfield(n,"yoffset",yoffset)
+ end
end
end
else
@@ -999,14 +1096,10 @@ local function inject_pairs_only(head,where)
local h = d
for n in traverse_id(glyph_code,d) do
if getsubtype(n) < 256 then
- local p = rawget(properties,n)
- if p then
- local i = rawget(p,"replaceinjections")
+ local pn = rawget(properties,n)
+ if pn then
+ local i = rawget(pn,"replaceinjections")
if i then
- local yoffset = i.yoffset
- if yoffset and yoffset ~= 0 then
- setfield(n,"yoffset",yoffset)
- end
local leftkern = i.leftkern
if leftkern and leftkern ~= 0 then
h = insert_node_before(h,n,newkern(leftkern))
@@ -1016,6 +1109,10 @@ local function inject_pairs_only(head,where)
insert_node_after(head,n,newkern(rightkern))
n = getnext(n) -- to be checked
end
+ local yoffset = i.yoffset
+ if yoffset and yoffset ~= 0 then
+ setfield(n,"yoffset",yoffset)
+ end
end
end
else
@@ -1042,7 +1139,7 @@ local function inject_pairs_only(head,where)
return tonode(head), true
end
-function injections.handler(head,where) -- optimize for n=1 ?
+function injections.handler(head,where)
if nofregisteredmarks > 0 or nofregisteredcursives > 0 then
return inject_everything(head,where)
elseif nofregisteredpairs > 0 then
diff --git a/src/fontloader/misc/fontloader-fonts-otn.lua b/src/fontloader/misc/fontloader-fonts-otn.lua
index dd3aa61..1b99c56 100644
--- a/src/fontloader/misc/fontloader-fonts-otn.lua
+++ b/src/fontloader/misc/fontloader-fonts-otn.lua
@@ -6,12 +6,16 @@ if not modules then modules = { } end modules ['font-otn'] = {
license = "see context related readme files",
}
--- todo: looks like we have a leak somewhere (probably in ligatures)
--- todo: copy attributes to disc
-
-- this is a context version which can contain experimental code, but when we
-- have serious patches we also need to change the other two font-otn files
+-- at some point i might decide to convert the whole list into a table and then
+-- run over that instead (but it has some drawbacks as we also need to deal with
+-- attributes and such so we need to keep a lot of track - which is why i rejected
+-- that method - although it has become a bit easier in the meantime so it might
+-- become an alternative (by that time i probably have gone completely lua) .. the
+-- usual chicken-egg issues ... maybe mkix as it's no real tex any more then
+
-- preprocessors = { "nodes" }
-- anchor class : mark, mkmk, curs, mklg (todo)
@@ -40,7 +44,18 @@ if not modules then modules = { } end modules ['font-otn'] = {
-- mark (to mark) code is still not what it should be (too messy but we need some more extreem husayni tests)
-- remove some optimizations (when I have a faster machine)
--
--- maybe redo the lot some way (more context specific)
+-- beware:
+--
+-- we do some disc jugling where we need to keep in mind that the
+-- pre, post and replace fields can have prev pointers to a nesting
+-- node ... i wonder if that is still needed
+--
+-- not possible:
+--
+-- \discretionary {alpha-} {betagammadelta}
+-- {\discretionary {alphabeta-} {gammadelta}
+-- {\discretionary {alphabetagamma-} {delta}
+-- {alphabetagammadelta}}}
--[[ldx--
<p>This module is a bit more split up that I'd like but since we also want to test
@@ -65,9 +80,12 @@ is currently acceptable. Not all functions are implemented yet, often because I
lack the fonts for testing. Many scripts are not yet supported either, but I will
look into them as soon as <l n='context'/> users ask for it.</p>
-<p>Because there are different interpretations possible, I will extend the code
-with more (configureable) variants. I can also add hooks for users so that they can
-write their own extensions.</p>
+<p>The specification leaves room for interpretation. In case of doubt the microsoft
+implementation is the reference as it is the most complete one. As they deal with
+lots of scripts and fonts, Kai and Ivo did a lot of testing of the generic code and
+their suggestions help improve the code. I'm aware that not all border cases can be
+taken care of, unless we accept excessive runtime, and even then the interference
+with other mechanisms (like hyphenation) are not trivial.</p>
<p>Glyphs are indexed not by unicode but in their own way. This is because there is no
relationship with unicode at all, apart from the fact that a font might cover certain
@@ -94,12 +112,12 @@ when there's a fix in the <l n='fontforge'/> library or <l n='lua'/> code that
results in different tables.</p>
--ldx]]--
--- action handler chainproc chainmore comment
+-- action handler chainproc
--
--- gsub_single ok ok ok
--- gsub_multiple ok ok not implemented yet
--- gsub_alternate ok ok not implemented yet
--- gsub_ligature ok ok ok
+-- gsub_single ok ok
+-- gsub_multiple ok ok
+-- gsub_alternate ok ok
+-- gsub_ligature ok ok
-- gsub_context ok --
-- gsub_contextchain ok --
-- gsub_reversecontextchain ok --
@@ -123,7 +141,6 @@ results in different tables.</p>
-- chainmore : multiple substitutions triggered by contextual lookup (e.g. fij -> f + ij)
--
-- remark: the 'not implemented yet' variants will be done when we have fonts that use them
--- remark: we need to check what to do with discretionaries
-- We used to have independent hashes for lookups but as the tags are unique
-- we now use only one hash. If needed we can have multiple again but in that
@@ -131,16 +148,14 @@ results in different tables.</p>
-- Todo: make plugin feature that operates on char/glyphnode arrays
-local concat, insert, remove = table.concat, table.insert, table.remove
-local gmatch, gsub, find, match, lower, strip = string.gmatch, string.gsub, string.find, string.match, string.lower, string.strip
-local type, next, tonumber, tostring = type, next, tonumber, tostring
-local lpegmatch = lpeg.match
+local type, next, tonumber = type, next, tonumber
local random = math.random
local formatters = string.formatters
local logs, trackers, nodes, attributes = logs, trackers, nodes, attributes
-local registertracker = trackers.register
+local registertracker = trackers.register
+local registerdirective = directives.register
local fonts = fonts
local otf = fonts.handlers.otf
@@ -162,6 +177,16 @@ local trace_steps = false registertracker("otf.steps", function(v
local trace_skips = false registertracker("otf.skips", function(v) trace_skips = v end)
local trace_directions = false registertracker("otf.directions", function(v) trace_directions = v end)
+local trace_kernruns = false registertracker("otf.kernruns", function(v) trace_kernruns = v end)
+local trace_discruns = false registertracker("otf.discruns", function(v) trace_discruns = v end)
+local trace_compruns = false registertracker("otf.compruns", function(v) trace_compruns = v end)
+
+local quit_on_no_replacement = true -- maybe per font
+local zwnjruns = true
+
+registerdirective("otf.zwnjruns", function(v) zwnjruns = v end)
+registerdirective("otf.chain.quitonnoreplacement",function(value) quit_on_no_replacement = value end)
+
local report_direct = logs.reporter("fonts","otf direct")
local report_subchain = logs.reporter("fonts","otf subchain")
local report_chain = logs.reporter("fonts","otf chain")
@@ -230,11 +255,7 @@ local math_code = nodecodes.math
local dir_code = whatcodes.dir
local localpar_code = whatcodes.localpar
-
local discretionary_code = disccodes.discretionary
-local regular_code = disccodes.regular
-local automatic_code = disccodes.automatic
-
local ligature_code = glyphcodes.ligature
local privateattribute = attributes.private
@@ -286,6 +307,15 @@ local handlers = { }
local rlmode = 0
local featurevalue = false
+local sweephead = { }
+local sweepnode = nil
+local sweepprev = nil
+local sweepnext = nil
+
+local notmatchpre = { }
+local notmatchpost = { }
+local notmatchreplace = { }
+
-- head is always a whatsit so we can safely assume that head is not changed
-- we use this for special testing and documentation
@@ -376,8 +406,66 @@ local function copy_glyph(g) -- next and prev are untouched !
end
end
---
+local function flattendisk(head,disc)
+ local replace = getfield(disc,"replace")
+ setfield(disc,"replace",nil)
+ free_node(disc)
+ if head == disc then
+ local next = getnext(disc)
+ if replace then
+ if next then
+ local tail = find_node_tail(replace)
+ setfield(tail,"next",next)
+ setfield(next,"prev",tail)
+ end
+ return replace, replace
+ elseif next then
+ return next, next
+ else
+ return -- maybe warning
+ end
+ else
+ local next = getnext(disc)
+ local prev = getprev(disc)
+ if replace then
+ local tail = find_node_tail(replace)
+ if next then
+ setfield(tail,"next",next)
+ setfield(next,"prev",tail)
+ end
+ setfield(prev,"next",replace)
+ setfield(replace,"prev",prev)
+ return head, replace
+ else
+ if next then
+ setfield(next,"prev",prev)
+ end
+ setfield(prev,"next",next)
+ return head, next
+ end
+ end
+end
+local function appenddisc(disc,list)
+ local post = getfield(disc,"post")
+ local replace = getfield(disc,"replace")
+ local phead = list
+ local rhead = copy_node_list(list)
+ local ptail = find_node_tail(post)
+ local rtail = find_node_tail(replace)
+ if post then
+ setfield(ptail,"next",phead)
+ setfield(phead,"prev",ptail)
+ else
+ setfield(disc,"post",phead)
+ end
+ if replace then
+ setfield(rtail,"next",rhead)
+ setfield(rhead,"prev",rtail)
+ else
+ setfield(disc,"replace",rhead)
+ end
+end
-- start is a mark and we need to keep that one
@@ -416,8 +504,8 @@ end
-- iteration this becomes a KAF-LAM-ALEF with a SHADDA on the second and a FATHA on the
-- third component.
-local function getcomponentindex(start)
- if getid(start) ~= glyph_code then
+local function getcomponentindex(start) -- we could store this offset in the glyph (nofcomponents)
+ if getid(start) ~= glyph_code then -- and then get rid of all components
return 0
elseif getsubtype(start) == ligature_code then
local i = 0
@@ -434,16 +522,28 @@ local function getcomponentindex(start)
end
end
--- eventually we will do positioning in an other way (needs addional w/h/d fields)
+local a_noligature = attributes.private("noligature")
local function toligature(kind,lookupname,head,start,stop,char,markflag,discfound) -- brr head
+ if getattr(start,a_noligature) == 1 then
+ -- so we can do: e\noligature{ff}e e\noligature{f}fie (we only look at the first)
+ return head, start
+ end
if start == stop and getchar(start) == char then
resetinjection(start)
setfield(start,"char",char)
return head, start
end
+ -- needs testing (side effects):
+ local components = getfield(start,"components")
+ if components then
+ -- we get a double free .. needs checking
+ -- flush_node_list(components)
+ end
+ --
local prev = getprev(start)
local next = getnext(stop)
+ local comp = start
setfield(start,"prev",nil)
setfield(stop,"next",nil)
local base = copy_glyph(start)
@@ -453,15 +553,15 @@ local function toligature(kind,lookupname,head,start,stop,char,markflag,discfoun
resetinjection(base)
setfield(base,"char",char)
setfield(base,"subtype",ligature_code)
- setfield(base,"components",start) -- start can have components
+ setfield(base,"components",comp) -- start can have components ... do we need to flush?
if prev then
setfield(prev,"next",base)
end
if next then
setfield(next,"prev",base)
end
- setfield(base,"next",next)
setfield(base,"prev",prev)
+ setfield(base,"next",next)
if not discfound then
local deletemarks = markflag ~= "mark"
local components = start
@@ -480,7 +580,9 @@ local function toligature(kind,lookupname,head,start,stop,char,markflag,discfoun
if trace_marks then
logwarning("%s: keep mark %s, gets index %s",pref(kind,lookupname),gref(char),getligaindex(start))
end
- head, current = insert_node_after(head,current,copy_node(start)) -- unlikely that mark has components
+ local n = copy_node(start)
+ copyinjection(n,start)
+ head, current = insert_node_after(head,current,n) -- unlikely that mark has components
elseif trace_marks then
logwarning("%s: delete mark %s",pref(kind,lookupname),gref(char))
end
@@ -501,17 +603,85 @@ local function toligature(kind,lookupname,head,start,stop,char,markflag,discfoun
end
start = getnext(start)
end
+ else
+ -- discfound ... forget about marks .. probably no scripts that hyphenate and have marks
+ local discprev = getfield(discfound,"prev")
+ local discnext = getfield(discfound,"next")
+ if discprev and discnext then
+ -- we assume normalization in context, and don't care about generic ... especially
+ -- \- can give problems as there we can have a negative char but that won't match
+ -- anyway
+ local pre = getfield(discfound,"pre")
+ local post = getfield(discfound,"post")
+ local replace = getfield(discfound,"replace")
+ if not replace then -- todo: signal simple hyphen
+ local prev = getfield(base,"prev")
+ local copied = copy_node_list(comp)
+ setfield(discnext,"prev",nil) -- also blocks funny assignments
+ setfield(discprev,"next",nil) -- also blocks funny assignments
+ if pre then
+ setfield(discprev,"next",pre)
+ setfield(pre,"prev",discprev)
+ end
+ pre = comp
+ if post then
+ local tail = find_node_tail(post)
+ setfield(tail,"next",discnext)
+ setfield(discnext,"prev",tail)
+ setfield(post,"prev",nil)
+ else
+ post = discnext
+ end
+ setfield(prev,"next",discfound)
+ setfield(discfound,"prev",prev)
+ setfield(discfound,"next",next)
+ setfield(next,"prev",discfound)
+ setfield(base,"next",nil)
+ setfield(base,"prev",nil)
+ setfield(base,"components",copied)
+ setfield(discfound,"pre",pre)
+ setfield(discfound,"post",post)
+ setfield(discfound,"replace",base)
+ setfield(discfound,"subtype",discretionary_code)
+ base = prev -- restart
+ end
+ end
end
return head, base
end
-function handlers.gsub_single(head,start,kind,lookupname,replacement)
- if trace_singles then
- logprocess("%s: replacing %s by single %s",pref(kind,lookupname),gref(getchar(start)),gref(replacement))
+local function multiple_glyphs(head,start,multiple,ignoremarks)
+ local nofmultiples = #multiple
+ if nofmultiples > 0 then
+ resetinjection(start)
+ setfield(start,"char",multiple[1])
+ if nofmultiples > 1 then
+ local sn = getnext(start)
+ for k=2,nofmultiples do -- todo: use insert_node
+-- untested:
+--
+-- while ignoremarks and marks[getchar(sn)] then
+-- local sn = getnext(sn)
+-- end
+ local n = copy_node(start) -- ignore components
+ resetinjection(n)
+ setfield(n,"char",multiple[k])
+ setfield(n,"prev",start)
+ setfield(n,"next",sn)
+ if sn then
+ setfield(sn,"prev",n)
+ end
+ setfield(start,"next",n)
+ start = n
+ end
+ end
+ return head, start, true
+ else
+ if trace_multiples then
+ logprocess("no multiple for %s",gref(getchar(start)))
+ end
+ return head, start, false
end
- resetinjection(start)
- setfield(start,"char",replacement)
- return head, start, true
end
local function get_alternative_glyph(start,alternatives,value,trace_alternatives)
@@ -546,38 +716,15 @@ local function get_alternative_glyph(start,alternatives,value,trace_alternatives
end
end
-local function multiple_glyphs(head,start,multiple,ignoremarks)
- local nofmultiples = #multiple
- if nofmultiples > 0 then
- resetinjection(start)
- setfield(start,"char",multiple[1])
- if nofmultiples > 1 then
- local sn = getnext(start)
- for k=2,nofmultiples do -- todo: use insert_node
--- untested:
---
--- while ignoremarks and marks[getchar(sn)] then
--- local sn = getnext(sn)
--- end
- local n = copy_node(start) -- ignore components
- resetinjection(n)
- setfield(n,"char",multiple[k])
- setfield(n,"next",sn)
- setfield(n,"prev",start)
- if sn then
- setfield(sn,"prev",n)
- end
- setfield(start,"next",n)
- start = n
- end
- end
- return head, start, true
- else
- if trace_multiples then
- logprocess("no multiple for %s",gref(getchar(start)))
- end
- return head, start, false
+-- handlers
+
+function handlers.gsub_single(head,start,kind,lookupname,replacement)
+ if trace_singles then
+ logprocess("%s: replacing %s by single %s",pref(kind,lookupname),gref(getchar(start)),gref(replacement))
end
+ resetinjection(start)
+ setfield(start,"char",replacement)
+ return head, start, true
end
function handlers.gsub_alternate(head,start,kind,lookupname,alternative,sequence)
@@ -605,7 +752,7 @@ function handlers.gsub_multiple(head,start,kind,lookupname,multiple,sequence)
end
function handlers.gsub_ligature(head,start,kind,lookupname,ligature,sequence)
- local s, stop, discfound = getnext(start), nil, false
+ local s, stop = getnext(start), nil
local startchar = getchar(start)
if marks[startchar] then
while s do
@@ -633,24 +780,30 @@ function handlers.gsub_ligature(head,start,kind,lookupname,ligature,sequence)
else
head, start = markstoligature(kind,lookupname,head,start,stop,lig)
end
- return head, start, true
+ return head, start, true, false
else
-- ok, goto next lookup
end
end
else
- local skipmark = sequence.flags[1]
+ local skipmark = sequence.flags[1]
+ local discfound = false
+ local lastdisc = nil
while s do
local id = getid(s)
- if id == glyph_code and getsubtype(s)<256 then
- if getfont(s) == currentfont then
+ if id == glyph_code and getsubtype(s)<256 then -- not needed
+ if getfont(s) == currentfont then -- also not needed only when mark
local char = getchar(s)
if skipmark and marks[char] then
s = getnext(s)
- else
- local lg = ligature[char]
+ else -- ligature is a tree
+ local lg = ligature[char] -- can there be multiple in a row? maybe in a bad font
if lg then
- stop = s
+ if not discfound and lastdisc then
+ discfound = lastdisc
+ lastdisc = nil
+ end
+ stop = s -- needed for fake so outside then
ligature = lg
s = getnext(s)
else
@@ -661,13 +814,13 @@ function handlers.gsub_ligature(head,start,kind,lookupname,ligature,sequence)
break
end
elseif id == disc_code then
- discfound = true
+ lastdisc = s
s = getnext(s)
else
break
end
end
- local lig = ligature.ligature
+ local lig = ligature.ligature -- can't we get rid of this .ligature?
if lig then
if stop then
if trace_ligatures then
@@ -685,14 +838,88 @@ function handlers.gsub_ligature(head,start,kind,lookupname,ligature,sequence)
logprocess("%s: replacing %s by (no real) ligature %s case 3",pref(kind,lookupname),gref(startchar),gref(lig))
end
end
- return head, start, true
+ return head, start, true, discfound
else
- -- weird but happens
+ -- weird but happens, pseudo ligatures ... just the components
end
end
+ return head, start, false, discfound
+end
+
+function handlers.gpos_single(head,start,kind,lookupname,kerns,sequence,injection)
+ local startchar = getchar(start)
+ local dx, dy, w, h = setpair(start,tfmdata.parameters.factor,rlmode,sequence.flags[4],kerns,injection) -- ,characters[startchar])
+ if trace_kerns then
+ logprocess("%s: shifting single %s by (%p,%p) and correction (%p,%p)",pref(kind,lookupname),gref(startchar),dx,dy,w,h)
+ end
return head, start, false
end
+function handlers.gpos_pair(head,start,kind,lookupname,kerns,sequence,lookuphash,i,injection)
+ -- todo: kerns in disc nodes: pre, post, replace -> loop over disc too
+ -- todo: kerns in components of ligatures
+ local snext = getnext(start)
+ if not snext then
+ return head, start, false
+ else
+ local prev = start
+ local done = false
+ local factor = tfmdata.parameters.factor
+ local lookuptype = lookuptypes[lookupname]
+ while snext and getid(snext) == glyph_code and getfont(snext) == currentfont and getsubtype(snext)<256 do
+ local nextchar = getchar(snext)
+ local krn = kerns[nextchar]
+ if not krn and marks[nextchar] then
+ prev = snext
+ snext = getnext(snext)
+ else
+ if not krn then
+ -- skip
+ elseif type(krn) == "table" then
+ if lookuptype == "pair" then -- probably not needed
+ local a, b = krn[2], krn[3]
+ if a and #a > 0 then
+ local x, y, w, h = setpair(start,factor,rlmode,sequence.flags[4],a,injection) -- characters[startchar])
+ if trace_kerns then
+ local startchar = getchar(start)
+ logprocess("%s: shifting first of pair %s and %s by (%p,%p) and correction (%p,%p)",pref(kind,lookupname),gref(startchar),gref(nextchar),x,y,w,h)
+ end
+ end
+ if b and #b > 0 then
+ local x, y, w, h = setpair(snext,factor,rlmode,sequence.flags[4],b,injection) -- characters[nextchar])
+ if trace_kerns then
+ local startchar = getchar(start)
+ logprocess("%s: shifting second of pair %s and %s by (%p,%p) and correction (%p,%p)",pref(kind,lookupname),gref(startchar),gref(nextchar),x,y,w,h)
+ end
+ end
+ else -- wrong ... position has different entries
+ report_process("%s: check this out (old kern stuff)",pref(kind,lookupname))
+ -- local a, b = krn[2], krn[6]
+ -- if a and a ~= 0 then
+ -- local k = setkern(snext,factor,rlmode,a)
+ -- if trace_kerns then
+ -- logprocess("%s: inserting first kern %s between %s and %s",pref(kind,lookupname),k,gref(getchar(prev)),gref(nextchar))
+ -- end
+ -- end
+ -- if b and b ~= 0 then
+ -- logwarning("%s: ignoring second kern xoff %s",pref(kind,lookupname),b*factor)
+ -- end
+ end
+ done = true
+ elseif krn ~= 0 then
+ local k = setkern(snext,factor,rlmode,krn,injection)
+ if trace_kerns then
+ logprocess("%s: inserting kern %s between %s and %s",pref(kind,lookupname),k,gref(getchar(prev)),gref(nextchar)) -- prev?
+ end
+ done = true
+ end
+ break
+ end
+ end
+ return head, start, done
+ end
+end
+
--[[ldx--
<p>We get hits on a mark, but we're not sure if the it has to be applied so
we need to explicitly test for basechar, baselig and basemark entries.</p>
@@ -855,7 +1082,7 @@ function handlers.gpos_mark2mark(head,start,kind,lookupname,markanchors,sequence
if al[anchor] then
local ma = markanchors[anchor]
if ma then
- local dx, dy, bound = setmark(start,base,tfmdata.parameters.factor,rlmode,ba,ma,characters[basechar])
+ local dx, dy, bound = setmark(start,base,tfmdata.parameters.factor,rlmode,ba,ma,characters[basechar],true)
if trace_marks then
logprocess("%s, anchor %s, bound %s: anchoring mark %s to basemark %s => (%p,%p)",
pref(kind,lookupname),anchor,bound,gref(markchar),gref(basechar),dx,dy)
@@ -938,85 +1165,11 @@ function handlers.gpos_cursive(head,start,kind,lookupname,exitanchors,sequence)
end
end
-function handlers.gpos_single(head,start,kind,lookupname,kerns,sequence)
- local startchar = getchar(start)
- local dx, dy, w, h = setpair(start,tfmdata.parameters.factor,rlmode,sequence.flags[4],kerns,characters[startchar])
- if trace_kerns then
- logprocess("%s: shifting single %s by (%p,%p) and correction (%p,%p)",pref(kind,lookupname),gref(startchar),dx,dy,w,h)
- end
- return head, start, false
-end
-
-function handlers.gpos_pair(head,start,kind,lookupname,kerns,sequence)
- -- todo: kerns in disc nodes: pre, post, replace -> loop over disc too
- -- todo: kerns in components of ligatures
- local snext = getnext(start)
- if not snext then
- return head, start, false
- else
- local prev, done = start, false
- local factor = tfmdata.parameters.factor
- local lookuptype = lookuptypes[lookupname]
- while snext and getid(snext) == glyph_code and getfont(snext) == currentfont and getsubtype(snext)<256 do
- local nextchar = getchar(snext)
- local krn = kerns[nextchar]
- if not krn and marks[nextchar] then
- prev = snext
- snext = getnext(snext)
- else
- if not krn then
- -- skip
- elseif type(krn) == "table" then
- if lookuptype == "pair" then -- probably not needed
- local a, b = krn[2], krn[3]
- if a and #a > 0 then
- local startchar = getchar(start)
- local x, y, w, h = setpair(start,factor,rlmode,sequence.flags[4],a,characters[startchar])
- if trace_kerns then
- logprocess("%s: shifting first of pair %s and %s by (%p,%p) and correction (%p,%p)",pref(kind,lookupname),gref(startchar),gref(nextchar),x,y,w,h)
- end
- end
- if b and #b > 0 then
- local startchar = getchar(start)
- local x, y, w, h = setpair(snext,factor,rlmode,sequence.flags[4],b,characters[nextchar])
- if trace_kerns then
- logprocess("%s: shifting second of pair %s and %s by (%p,%p) and correction (%p,%p)",pref(kind,lookupname),gref(startchar),gref(nextchar),x,y,w,h)
- end
- end
- else -- wrong ... position has different entries
- report_process("%s: check this out (old kern stuff)",pref(kind,lookupname))
- -- local a, b = krn[2], krn[6]
- -- if a and a ~= 0 then
- -- local k = setkern(snext,factor,rlmode,a)
- -- if trace_kerns then
- -- logprocess("%s: inserting first kern %s between %s and %s",pref(kind,lookupname),k,gref(getchar(prev)),gref(nextchar))
- -- end
- -- end
- -- if b and b ~= 0 then
- -- logwarning("%s: ignoring second kern xoff %s",pref(kind,lookupname),b*factor)
- -- end
- end
- done = true
- elseif krn ~= 0 then
- local k = setkern(snext,factor,rlmode,krn)
- if trace_kerns then
- logprocess("%s: inserting kern %s between %s and %s",pref(kind,lookupname),k,gref(getchar(prev)),gref(nextchar))
- end
- done = true
- end
- break
- end
- end
- return head, start, done
- end
-end
-
--[[ldx--
<p>I will implement multiple chain replacements once I run into a font that uses
it. It's not that complex to handle.</p>
--ldx]]--
-local chainmores = { }
local chainprocs = { }
local function logprocess(...)
@@ -1045,11 +1198,6 @@ function chainprocs.chainsub(head,start,stop,kind,chainname,currentcontext,looku
return head, start, false
end
-function chainmores.chainsub(head,start,stop,kind,chainname,currentcontext,lookuphash,lookuplist,chainlookupname,n)
- logprocess("%s: a direct call to chainsub cannot happen",cref(kind,chainname,chainlookupname))
- return head, start, false
-end
-
-- The reversesub is a special case, which is why we need to store the replacements
-- in a bit weird way. There is no lookup and the replacement comes from the lookup
-- itself. It is meant mostly for dealing with Urdu.
@@ -1116,8 +1264,7 @@ as less as needed but that would also make the code even more messy.</p>
-- end
--[[ldx--
-<p>Here we replace start by a single variant, First we delete the rest of the
-match.</p>
+<p>Here we replace start by a single variant.</p>
--ldx]]--
function chainprocs.gsub_single(head,start,stop,kind,chainname,currentcontext,lookuphash,currentlookup,chainlookupname,chainindex)
@@ -1125,7 +1272,7 @@ function chainprocs.gsub_single(head,start,stop,kind,chainname,currentcontext,lo
local current = start
local subtables = currentlookup.subtables
if #subtables > 1 then
- logwarning("todo: check if we need to loop over the replacements: %s",concat(subtables," "))
+ logwarning("todo: check if we need to loop over the replacements: % t",subtables)
end
while current do
if getid(current) == glyph_code then
@@ -1160,11 +1307,8 @@ function chainprocs.gsub_single(head,start,stop,kind,chainname,currentcontext,lo
return head, start, false
end
-chainmores.gsub_single = chainprocs.gsub_single
-
--[[ldx--
-<p>Here we replace start by a sequence of new glyphs. First we delete the rest of
-the match.</p>
+<p>Here we replace start by a sequence of new glyphs.</p>
--ldx]]--
function chainprocs.gsub_multiple(head,start,stop,kind,chainname,currentcontext,lookuphash,currentlookup,chainlookupname)
@@ -1193,8 +1337,6 @@ function chainprocs.gsub_multiple(head,start,stop,kind,chainname,currentcontext,
return head, start, false
end
-chainmores.gsub_multiple = chainprocs.gsub_multiple
-
--[[ldx--
<p>Here we replace start by new glyph. First we delete the rest of the match.</p>
--ldx]]--
@@ -1249,8 +1391,6 @@ function chainprocs.gsub_alternate(head,start,stop,kind,chainname,currentcontext
return head, start, false
end
-chainmores.gsub_alternate = chainprocs.gsub_alternate
-
--[[ldx--
<p>When we replace ligatures we use a helper that handles the marks. I might change
this function (move code inline and handle the marks by a separate function). We
@@ -1276,13 +1416,19 @@ function chainprocs.gsub_ligature(head,start,stop,kind,chainname,currentcontext,
local s = getnext(start)
local discfound = false
local last = stop
- local nofreplacements = 0
+ local nofreplacements = 1
local skipmark = currentlookup.flags[1]
while s do
local id = getid(s)
if id == disc_code then
- s = getnext(s)
- discfound = true
+ if not discfound then
+ discfound = s
+ end
+ if s == stop then
+ break -- okay? or before the disc
+ else
+ s = getnext(s)
+ end
else
local schar = getchar(s)
if skipmark and marks[schar] then -- marks
@@ -1315,7 +1461,7 @@ function chainprocs.gsub_ligature(head,start,stop,kind,chainname,currentcontext,
end
end
head, start = toligature(kind,lookupname,head,start,stop,l2,currentlookup.flags[1],discfound)
- return head, start, true, nofreplacements
+ return head, start, true, nofreplacements, discfound
elseif trace_bugs then
if start == stop then
logwarning("%s: replacing character %s by ligature fails",cref(kind,chainname,chainlookupname,lookupname,chainindex),gref(startchar))
@@ -1325,11 +1471,97 @@ function chainprocs.gsub_ligature(head,start,stop,kind,chainname,currentcontext,
end
end
end
- return head, start, false, 0
+ return head, start, false, 0, false
+end
+
+function chainprocs.gpos_single(head,start,stop,kind,chainname,currentcontext,lookuphash,currentlookup,chainlookupname,chainindex,sequence)
+ -- untested .. needs checking for the new model
+ local startchar = getchar(start)
+ local subtables = currentlookup.subtables
+ local lookupname = subtables[1]
+ local kerns = lookuphash[lookupname]
+ if kerns then
+ kerns = kerns[startchar] -- needed ?
+ if kerns then
+ local dx, dy, w, h = setpair(start,tfmdata.parameters.factor,rlmode,sequence.flags[4],kerns) -- ,characters[startchar])
+ if trace_kerns then
+ logprocess("%s: shifting single %s by (%p,%p) and correction (%p,%p)",cref(kind,chainname,chainlookupname),gref(startchar),dx,dy,w,h)
+ end
+ end
+ end
+ return head, start, false
+end
+
+function chainprocs.gpos_pair(head,start,stop,kind,chainname,currentcontext,lookuphash,currentlookup,chainlookupname,chainindex,sequence)
+ local snext = getnext(start)
+ if snext then
+ local startchar = getchar(start)
+ local subtables = currentlookup.subtables
+ local lookupname = subtables[1]
+ local kerns = lookuphash[lookupname]
+ if kerns then
+ kerns = kerns[startchar]
+ if kerns then
+ local lookuptype = lookuptypes[lookupname]
+ local prev, done = start, false
+ local factor = tfmdata.parameters.factor
+ while snext and getid(snext) == glyph_code and getfont(snext) == currentfont and getsubtype(snext)<256 do
+ local nextchar = getchar(snext)
+ local krn = kerns[nextchar]
+ if not krn and marks[nextchar] then
+ prev = snext
+ snext = getnext(snext)
+ else
+ if not krn then
+ -- skip
+ elseif type(krn) == "table" then
+ if lookuptype == "pair" then
+ local a, b = krn[2], krn[3]
+ if a and #a > 0 then
+ local startchar = getchar(start)
+ local x, y, w, h = setpair(start,factor,rlmode,sequence.flags[4],a) -- ,characters[startchar])
+ if trace_kerns then
+ logprocess("%s: shifting first of pair %s and %s by (%p,%p) and correction (%p,%p)",cref(kind,chainname,chainlookupname),gref(startchar),gref(nextchar),x,y,w,h)
+ end
+ end
+ if b and #b > 0 then
+ local startchar = getchar(start)
+ local x, y, w, h = setpair(snext,factor,rlmode,sequence.flags[4],b) -- ,characters[nextchar])
+ if trace_kerns then
+ logprocess("%s: shifting second of pair %s and %s by (%p,%p) and correction (%p,%p)",cref(kind,chainname,chainlookupname),gref(startchar),gref(nextchar),x,y,w,h)
+ end
+ end
+ else
+ report_process("%s: check this out (old kern stuff)",cref(kind,chainname,chainlookupname))
+ -- local a, b = krn[2], krn[6]
+ -- if a and a ~= 0 then
+ -- local k = setkern(snext,factor,rlmode,a)
+ -- if trace_kerns then
+ -- logprocess("%s: inserting first kern %s between %s and %s",cref(kind,chainname,chainlookupname),k,gref(getchar(prev)),gref(nextchar))
+ -- end
+ -- end
+ -- if b and b ~= 0 then
+ -- logwarning("%s: ignoring second kern xoff %s",cref(kind,chainname,chainlookupname),b*factor)
+ -- end
+ end
+ done = true
+ elseif krn ~= 0 then
+ local k = setkern(snext,factor,rlmode,krn)
+ if trace_kerns then
+ logprocess("%s: inserting kern %s between %s and %s",cref(kind,chainname,chainlookupname),k,gref(getchar(prev)),gref(nextchar))
+ end
+ done = true
+ end
+ break
+ end
+ end
+ return head, start, done
+ end
+ end
+ end
+ return head, start, false
end
-chainmores.gsub_ligature = chainprocs.gsub_ligature
-
function chainprocs.gpos_mark2base(head,start,stop,kind,chainname,currentcontext,lookuphash,currentlookup,chainlookupname)
local markchar = getchar(start)
if marks[markchar] then
@@ -1497,7 +1729,7 @@ function chainprocs.gpos_mark2mark(head,start,stop,kind,chainname,currentcontext
if al[anchor] then
local ma = markanchors[anchor]
if ma then
- local dx, dy, bound = setmark(start,base,tfmdata.parameters.factor,rlmode,ba,ma,characters[basechar])
+ local dx, dy, bound = setmark(start,base,tfmdata.parameters.factor,rlmode,ba,ma,characters[basechar],true)
if trace_marks then
logprocess("%s, anchor %s, bound %s: anchoring mark %s to basemark %s => (%p,%p)",
cref(kind,chainname,chainlookupname,lookupname),anchor,bound,gref(markchar),gref(basechar),dx,dy)
@@ -1588,133 +1820,346 @@ function chainprocs.gpos_cursive(head,start,stop,kind,chainname,currentcontext,l
return head, start, false
end
-function chainprocs.gpos_single(head,start,stop,kind,chainname,currentcontext,lookuphash,currentlookup,chainlookupname,chainindex,sequence)
- -- untested .. needs checking for the new model
- local startchar = getchar(start)
- local subtables = currentlookup.subtables
- local lookupname = subtables[1]
- local kerns = lookuphash[lookupname]
- if kerns then
- kerns = kerns[startchar] -- needed ?
- if kerns then
- local dx, dy, w, h = setpair(start,tfmdata.parameters.factor,rlmode,sequence.flags[4],kerns,characters[startchar])
- if trace_kerns then
- logprocess("%s: shifting single %s by (%p,%p) and correction (%p,%p)",cref(kind,chainname,chainlookupname),gref(startchar),dx,dy,w,h)
+-- what pointer to return, spec says stop
+-- to be discussed ... is bidi changer a space?
+-- elseif char == zwnj and sequence[n][32] then -- brrr
+
+-- somehow l or f is global
+-- we don't need to pass the currentcontext, saves a bit
+-- make a slow variant then can be activated but with more tracing
+
+local function show_skip(kind,chainname,char,ck,class)
+ if ck[9] then
+ logwarning("%s: skipping char %s, class %a, rule %a, lookuptype %a, %a => %a",cref(kind,chainname),gref(char),class,ck[1],ck[2],ck[9],ck[10])
+ else
+ logwarning("%s: skipping char %s, class %a, rule %a, lookuptype %a",cref(kind,chainname),gref(char),class,ck[1],ck[2])
+ end
+end
+
+-- A previous version had disc collapsing code in the (single sub) handler plus some
+-- checking in the main loop, but that left the pre/post sequences undone. The best
+-- solution is to add some checking there and backtrack when a replace/post matches
+-- but it takes a bit of work to figure out an efficient way (this is what the sweep*
+-- names refer to). I might look into that variant one day again as it can replace
+-- some other code too. In that approach we can have a special version for gub and pos
+-- which gains some speed. This method does the test and passes info to the handlers
+-- (sweepnode, sweepmode, sweepprev, sweepnext, etc). Here collapsing is handled in the
+-- main loop which also makes code elsewhere simpler (i.e. no need for the other special
+-- runners and disc code in ligature building). I also experimented with pushing preceding
+-- glyphs sequences in the replace/pre fields beforehand which saves checking afterwards
+-- but at the cost of duplicate glyphs (memory) but it's too much overhead (runtime).
+--
+-- In the meantime Kai had moved the code from the single chain into a more general handler
+-- and this one (renamed to chaindisk) is used now. I optimized the code a bit and brought
+-- it in sycn with the other code. Hopefully I didn't introduce errors. Note: this somewhat
+-- complex approach is meant for fonts that implement (for instance) ligatures by character
+-- replacement which to some extend is not that suitable for hyphenation. I also use some
+-- helpers. This method passes some states but reparses the list. There is room for a bit of
+-- speed up but that will be done in the context version. (In fact a partial rewrite of all
+-- code can bring some more efficientry.)
+--
+-- I didn't test it with extremes but successive disc nodes still can give issues but in
+-- order to handle that we need more complex code which also slows down even more. The main
+-- loop variant could deal with that: test, collapse, backtrack.
+
+local function chaindisk(head,start,last,kind,chainname,ck,lookuphash,chainlookup,chainlookupname,chainindex,sequence,chainproc)
+
+ if not start then
+ return head, start, false
+ end
+
+ local startishead = start == head
+ local seq = ck[3]
+ local f = ck[4]
+ local l = ck[5]
+ local s = #seq
+ local done = false
+ local sweepnode = sweepnode
+ local sweeptype = sweeptype
+ local sweepoverflow = false
+ local checkdisc = getprev(head) -- hm bad name head
+ local keepdisc = not sweepnode
+ local lookaheaddisc = nil
+ local backtrackdisc = nil
+ local current = start
+ local last = start
+ local prev = getprev(start)
+
+ -- fishy: so we can overflow and then go on in the sweep?
+
+ local i = f
+ while i <= l do
+ local id = getid(current)
+ if id == glyph_code then
+ i = i + 1
+ last = current
+ current = getnext(current)
+ elseif id == disc_code then
+ if keepdisc then
+ keepdisc = false
+ if notmatchpre[current] ~= notmatchreplace[current] then
+ lookaheaddisc = current
+ end
+ local replace = getfield(current,"replace")
+ while replace and i <= l do
+ if getid(replace) == glyph_code then
+ i = i + 1
+ end
+ replace = getnext(replace)
+ end
+ last = current
+ current = getnext(c)
+ else
+ head, current = flattendisk(head,current)
+ end
+ else
+ last = current
+ current = getnext(current)
+ end
+ if current then
+ -- go on
+ elseif sweepoverflow then
+ -- we already are folling up on sweepnode
+ break
+ elseif sweeptype == "post" or sweeptype == "replace" then
+ current = getnext(sweepnode)
+ if current then
+ sweeptype = nil
+ sweepoverflow = true
+ else
+ break
end
end
end
- return head, start, false
-end
-chainmores.gpos_single = chainprocs.gpos_single -- okay?
+ if sweepoverflow then
+ local prev = current and getprev(current)
+ if not current or prev ~= sweepnode then
+ local head = getnext(sweepnode)
+ local tail = nil
+ if prev then
+ tail = prev
+ setfield(current,"prev",sweepnode)
+ else
+ tail = find_node_tail(head)
+ end
+ setfield(sweepnode,"next",current)
+ setfield(head,"prev",nil)
+ setfield(tail,"next",nil)
+ appenddisc(sweepnode,head)
+ end
+ end
--- when machines become faster i will make a shared function
+ if l < s then
+ local i = l
+ local t = sweeptype == "post" or sweeptype == "replace"
+ while current and i < s do
+ local id = getid(current)
+ if id == glyph_code then
+ i = i + 1
+ current = getnext(current)
+ elseif id == disc_code then
+ if keepdisc then
+ keepdisc = false
+ if notmatchpre[current] ~= notmatchreplace[current] then
+ lookaheaddisc = current
+ end
+ local replace = getfield(c,"replace")
+ while replace and i < s do
+ if getid(replace) == glyph_code then
+ i = i + 1
+ end
+ replace = getnext(replace)
+ end
+ current = getnext(current)
+ elseif notmatchpre[current] ~= notmatchreplace[current] then
+ head, current = flattendisk(head,current)
+ else
+ current = getnext(current) -- HH
+ end
+ else
+ current = getnext(current)
+ end
+ if not current and t then
+ current = getnext(sweepnode)
+ if current then
+ sweeptype = nil
+ end
+ end
+ end
+ end
-function chainprocs.gpos_pair(head,start,stop,kind,chainname,currentcontext,lookuphash,currentlookup,chainlookupname,chainindex,sequence)
- local snext = getnext(start)
- if snext then
- local startchar = getchar(start)
- local subtables = currentlookup.subtables
- local lookupname = subtables[1]
- local kerns = lookuphash[lookupname]
- if kerns then
- kerns = kerns[startchar]
- if kerns then
- local lookuptype = lookuptypes[lookupname]
- local prev, done = start, false
- local factor = tfmdata.parameters.factor
- while snext and getid(snext) == glyph_code and getfont(snext) == currentfont and getsubtype(snext)<256 do
- local nextchar = getchar(snext)
- local krn = kerns[nextchar]
- if not krn and marks[nextchar] then
- prev = snext
- snext = getnext(snext)
- else
- if not krn then
- -- skip
- elseif type(krn) == "table" then
- if lookuptype == "pair" then
- local a, b = krn[2], krn[3]
- if a and #a > 0 then
- local startchar = getchar(start)
- local x, y, w, h = setpair(start,factor,rlmode,sequence.flags[4],a,characters[startchar])
- if trace_kerns then
- logprocess("%s: shifting first of pair %s and %s by (%p,%p) and correction (%p,%p)",cref(kind,chainname,chainlookupname),gref(startchar),gref(nextchar),x,y,w,h)
- end
- end
- if b and #b > 0 then
- local startchar = getchar(start)
- local x, y, w, h = setpair(snext,factor,rlmode,sequence.flags[4],b,characters[nextchar])
- if trace_kerns then
- logprocess("%s: shifting second of pair %s and %s by (%p,%p) and correction (%p,%p)",cref(kind,chainname,chainlookupname),gref(startchar),gref(nextchar),x,y,w,h)
- end
- end
- else
- report_process("%s: check this out (old kern stuff)",cref(kind,chainname,chainlookupname))
- local a, b = krn[2], krn[6]
- if a and a ~= 0 then
- local k = setkern(snext,factor,rlmode,a)
- if trace_kerns then
- logprocess("%s: inserting first kern %s between %s and %s",cref(kind,chainname,chainlookupname),k,gref(getchar(prev)),gref(nextchar))
- end
- end
- if b and b ~= 0 then
- logwarning("%s: ignoring second kern xoff %s",cref(kind,chainname,chainlookupname),b*factor)
- end
- end
- done = true
- elseif krn ~= 0 then
- local k = setkern(snext,factor,rlmode,krn)
- if trace_kerns then
- logprocess("%s: inserting kern %s between %s and %s",cref(kind,chainname,chainlookupname),k,gref(getchar(prev)),gref(nextchar))
- end
- done = true
+ if f > 1 then
+ local current = prev
+ local i = f
+ local t = sweeptype == "pre" or sweeptype == "replace"
+ if not current and t and current == checkdisk then
+ current = getprev(sweepnode)
+ end
+ while current and i > 1 do -- missing getprev added / moved outside
+ local id = getid(current)
+ if id == glyph_code then
+ i = i - 1
+ elseif id == disc_code then
+ if keepdisc then
+ keepdisc = false
+ if notmatchpost[current] ~= notmatchreplace[current] then
+ backtrackdisc = current
+ end
+ local replace = getfield(current,"replace")
+ while replace and i > 1 do
+ if getid(replace) == glyph_code then
+ i = i - 1
end
- break
+ replace = getnext(replace)
end
+ elseif notmatchpost[current] ~= notmatchreplace[current] then
+ head, current = flattendisk(head,current)
end
- return head, start, done
+ end
+ current = getprev(current)
+ if t and current == checkdisk then
+ current = getprev(sweepnode)
end
end
end
- return head, start, false
-end
-chainmores.gpos_pair = chainprocs.gpos_pair -- okay?
+ local ok = false
+ if lookaheaddisc then
--- what pointer to return, spec says stop
--- to be discussed ... is bidi changer a space?
--- elseif char == zwnj and sequence[n][32] then -- brrr
+ local cf = start
+ local cl = getprev(lookaheaddisc)
+ local cprev = getprev(start)
+ local insertedmarks = 0
--- somehow l or f is global
--- we don't need to pass the currentcontext, saves a bit
--- make a slow variant then can be activated but with more tracing
+ while cprev and getid(cf) == glyph_code and getfont(cf) == currentfont and getsubtype(cf) < 256 and marks[getchar(cf)] do
+ insertedmarks = insertedmarks + 1
+ cf = cprev
+ startishead = cf == head
+ cprev = getprev(cprev)
+ end
+
+ setfield(lookaheaddisc,"prev",cprev)
+ if cprev then
+ setfield(cprev,"next",lookaheaddisc)
+ end
+ setfield(cf,"prev",nil)
+ setfield(cl,"next",nil)
+ if startishead then
+ head = lookaheaddisc
+ end
+
+ local replace = getfield(lookaheaddisc,"replace")
+ local pre = getfield(lookaheaddisc,"pre")
+ local new = copy_node_list(cf)
+ local cnew = new
+ for i=1,insertedmarks do
+ cnew = getnext(cnew)
+ end
+ local clast = cnew
+ for i=f,l do
+ clast = getnext(clast)
+ end
+ if not notmatchpre[lookaheaddisc] then
+ cf, start, ok = chainproc(cf,start,last,kind,chainname,ck,lookuphash,chainlookup,chainlookupname,nil,sequence)
+ end
+ if not notmatchreplace[lookaheaddisc] then
+ new, cnew, ok = chainproc(new,cnew,clast,kind,chainname,ck,lookuphash,chainlookup,chainlookupname,nil,sequence)
+ end
+ if pre then
+ setfield(cl,"next",pre)
+ setfield(pre,"prev",cl)
+ end
+ if replace then
+ local tail = find_node_tail(new)
+ setfield(tail,"next",replace)
+ setfield(replace,"prev",tail)
+ end
+ setfield(lookaheaddisc,"pre",cf) -- also updates tail
+ setfield(lookaheaddisc,"replace",new) -- also updates tail
+
+ start = getprev(lookaheaddisc)
+ sweephead[cf] = getnext(clast)
+ sweephead[new] = getnext(last)
+
+ elseif backtrackdisc then
+
+ local cf = getnext(backtrackdisc)
+ local cl = start
+ local cnext = getnext(start)
+ local insertedmarks = 0
+
+ while cnext and getid(cnext) == glyph_code and getfont(cnext) == currentfont and getsubtype(cnext) < 256 and marks[getchar(cnext)] do
+ insertedmarks = insertedmarks + 1
+ cl = cnext
+ cnext = getnext(cnext)
+ end
+ if cnext then
+ setfield(cnext,"prev",backtrackdisc)
+ end
+ setfield(backtrackdisc,"next",cnext)
+ setfield(cf,"prev",nil)
+ setfield(cl,"next",nil)
+ local replace = getfield(backtrackdisc,"replace")
+ local post = getfield(backtrackdisc,"post")
+ local new = copy_node_list(cf)
+ local cnew = find_node_tail(new)
+ for i=1,insertedmarks do
+ cnew = getprev(cnew)
+ end
+ local clast = cnew
+ for i=f,l do
+ clast = getnext(clast)
+ end
+ if not notmatchpost[backtrackdisc] then
+ cf, start, ok = chainproc(cf,start,last,kind,chainname,ck,lookuphash,chainlookup,chainlookupname,nil,sequence)
+ end
+ if not notmatchreplace[backtrackdisc] then
+ new, cnew, ok = chainproc(new,cnew,clast,kind,chainname,ck,lookuphash,chainlookup,chainlookupname,nil,sequence)
+ end
+ if post then
+ local tail = find_node_tail(post)
+ setfield(tail,"next",cf)
+ setfield(cf,"prev",tail)
+ else
+ post = cf
+ end
+ if replace then
+ local tail = find_node_tail(replace)
+ setfield(tail,"next",new)
+ setfield(new,"prev",tail)
+ else
+ replace = new
+ end
+ setfield(backtrackdisc,"post",post) -- also updates tail
+ setfield(backtrackdisc,"replace",replace) -- also updates tail
+ start = getprev(backtrackdisc)
+ sweephead[post] = getnext(clast)
+ sweephead[replace] = getnext(last)
-local function show_skip(kind,chainname,char,ck,class)
- if ck[9] then
- logwarning("%s: skipping char %s, class %a, rule %a, lookuptype %a, %a => %a",cref(kind,chainname),gref(char),class,ck[1],ck[2],ck[9],ck[10])
else
- logwarning("%s: skipping char %s, class %a, rule %a, lookuptype %a",cref(kind,chainname),gref(char),class,ck[1],ck[2])
- end
-end
-local quit_on_no_replacement = true
+ head, start, ok = chainproc(head,start,last,kind,chainname,ck,lookuphash,chainlookup,chainlookupname,nil,sequence)
-directives.register("otf.chain.quitonnoreplacement",function(value) -- maybe per font
- quit_on_no_replacement = value
-end)
+ end
+
+ return head, start, ok
+end
local function normal_handle_contextchain(head,start,kind,chainname,contexts,sequence,lookuphash)
- -- local rule, lookuptype, sequence, f, l, lookups = ck[1], ck[2] ,ck[3], ck[4], ck[5], ck[6]
+ local sweepnode = sweepnode
+ local sweeptype = sweeptype
+ local diskseen = false
+ local checkdisc = getprev(head)
local flags = sequence.flags
local done = false
local skipmark = flags[1]
local skipligature = flags[2]
local skipbase = flags[3]
- local someskip = skipmark or skipligature or skipbase -- could be stored in flags for a fast test (hm, flags could be false !)
- local markclass = sequence.markclass -- todo, first we need a proper test
+ local markclass = sequence.markclass
local skipped = false
- for k=1,#contexts do
+
+ for k=1,#contexts do -- i've only seen ccmp having > 1 (e.g. dejavu)
local match = true
local current = start
local last = start
@@ -1728,7 +2173,8 @@ local function normal_handle_contextchain(head,start,kind,chainname,contexts,seq
else
-- maybe we need a better space check (maybe check for glue or category or combination)
-- we cannot optimize for n=2 because there can be disc nodes
- local f, l = ck[4], ck[5]
+ local f = ck[4]
+ local l = ck[5]
-- current match
if f == 1 and f == l then -- current only
-- already a hit
@@ -1738,9 +2184,14 @@ local function normal_handle_contextchain(head,start,kind,chainname,contexts,seq
if f == l then -- new, else last out of sync (f is > 1)
-- match = true
else
+ local discfound = nil
local n = f + 1
last = getnext(last)
while n <= l do
+ if not last and (sweeptype == "post" or sweeptype == "replace") then
+ last = getnext(sweepnode)
+ sweeptype = nil
+ end
if last then
local id = getid(last)
if id == glyph_code then
@@ -1748,7 +2199,7 @@ local function normal_handle_contextchain(head,start,kind,chainname,contexts,seq
local char = getchar(last)
local ccd = descriptions[char]
if ccd then
- local class = ccd.class
+ local class = ccd.class or "base"
if class == skipmark or class == skipligature or class == skipbase or (markclass and class == "mark" and not markclass[char]) then
skipped = true
if trace_skips then
@@ -1761,18 +2212,77 @@ local function normal_handle_contextchain(head,start,kind,chainname,contexts,seq
end
n = n + 1
else
- match = false
+ if discfound then
+ notmatchreplace[discfound] = true
+ match = not notmatchpre[discfound]
+ else
+ match = false
+ end
break
end
else
- match = false
+ if discfound then
+ notmatchreplace[discfound] = true
+ match = not notmatchpre[discfound]
+ else
+ match = false
+ end
break
end
else
- match = false
+ if discfound then
+ notmatchreplace[discfound] = true
+ match = not notmatchpre[discfound]
+ else
+ match = false
+ end
break
end
elseif id == disc_code then
+ diskseen = true
+ discfound = last
+ notmatchpre[last] = nil
+ notmatchpost[last] = true
+ notmatchreplace[last] = nil
+ local pre = getfield(last,"pre")
+ local replace = getfield(last,"replace")
+ if pre then
+ local n = n
+ while pre do
+ if seq[n][getchar(pre)] then
+ n = n + 1
+ pre = getnext(pre)
+ if n > l then
+ break
+ end
+ else
+ notmatchpre[last] = true
+ break
+ end
+ end
+ if n <= l then
+ notmatchpre[last] = true
+ end
+ else
+ notmatchpre[last] = true
+ end
+ if replace then
+ -- so far we never entered this branch
+ while replace do
+ if seq[n][getchar(replace)] then
+ n = n + 1
+ replace = getnext(replace)
+ if n > l then
+ break
+ end
+ else
+ notmatchreplace[last] = true
+ match = not notmatchpre[last]
+ break
+ end
+ end
+ match = not notmatchpre[last]
+ end
last = getnext(last)
else
match = false
@@ -1789,50 +2299,137 @@ local function normal_handle_contextchain(head,start,kind,chainname,contexts,seq
if match and f > 1 then
local prev = getprev(start)
if prev then
- local n = f-1
- while n >= 1 do
- if prev then
- local id = getid(prev)
- if id == glyph_code then
- if getfont(prev) == currentfont and getsubtype(prev)<256 then -- normal char
- local char = getchar(prev)
- local ccd = descriptions[char]
- if ccd then
- local class = ccd.class
- if class == skipmark or class == skipligature or class == skipbase or (markclass and class == "mark" and not markclass[char]) then
- skipped = true
- if trace_skips then
- show_skip(kind,chainname,char,ck,class)
+ if prev == checkdisc and (sweeptype == "pre" or sweeptype == "replace") then
+ prev = getprev(sweepnode)
+ -- sweeptype = nil
+ end
+ if prev then
+ local discfound = nil
+ local n = f - 1
+ while n >= 1 do
+ if prev then
+ local id = getid(prev)
+ if id == glyph_code then
+ if getfont(prev) == currentfont and getsubtype(prev)<256 then -- normal char
+ local char = getchar(prev)
+ local ccd = descriptions[char]
+ if ccd then
+ local class = ccd.class
+ if class == skipmark or class == skipligature or class == skipbase or (markclass and class == "mark" and not markclass[char]) then
+ skipped = true
+ if trace_skips then
+ show_skip(kind,chainname,char,ck,class)
+ end
+ elseif seq[n][char] then
+ n = n -1
+ else
+ if discfound then
+ notmatchreplace[discfound] = true
+ match = not notmatchpost[discfound]
+ else
+ match = false
+ end
+ break
end
- elseif seq[n][char] then
- n = n -1
else
- match = false
+ if discfound then
+ notmatchreplace[discfound] = true
+ match = not notmatchpost[discfound]
+ else
+ match = false
+ end
break
end
else
- match = false
+ if discfound then
+ notmatchreplace[discfound] = true
+ match = not notmatchpost[discfound]
+ else
+ match = false
+ end
break
end
+ elseif id == disc_code then
+ -- the special case: f i where i becomes dottless i ..
+ diskseen = true
+ discfound = prev
+ notmatchpre[prev] = true
+ notmatchpost[prev] = nil
+ notmatchreplace[prev] = nil
+ local pre = getfield(prev,"pre")
+ local post = getfield(prev,"post")
+ local replace = getfield(prev,"replace")
+ if pre ~= start and post ~= start and replace ~= start then
+ if post then
+ local n = n
+ local posttail = find_node_tail(post)
+ while posttail do
+ if seq[n][getchar(posttail)] then
+ n = n - 1
+ if posttail == post then
+ break
+ else
+ posttail = getprev(posttail)
+ if n < 1 then
+ break
+ end
+ end
+ else
+ notmatchpost[prev] = true
+ break
+ end
+ end
+ if n >= 1 then
+ notmatchpost[prev] = true
+ end
+ else
+ notmatchpost[prev] = true
+ end
+ if replace then
+ -- we seldom enter this branch (e.g. on brill efficient)
+ local replacetail = find_node_tail(replace)
+ while replacetail do
+ if seq[n][getchar(replacetail)] then
+ n = n - 1
+ if replacetail == replace then
+ break
+ else
+ replacetail = getprev(replacetail)
+ if n < 1 then
+ break
+ end
+ end
+ else
+ notmatchreplace[prev] = true
+ match = not notmatchpost[prev]
+ break
+ end
+ end
+ if not match then
+ break
+ end
+ else
+ -- skip 'm
+ end
+ else
+ -- skip 'm
+ end
+ elseif seq[n][32] then
+ n = n -1
else
match = false
break
end
- elseif id == disc_code then
- -- skip 'm
- elseif seq[n][32] then
- n = n -1
+ prev = getprev(prev)
+ elseif seq[n][32] then -- somewhat special, as zapfino can have many preceding spaces
+ n = n - 1
else
match = false
break
end
- prev = getprev(prev)
- elseif seq[n][32] then -- somewhat special, as zapfino can have many preceding spaces
- n = n -1
- else
- match = false
- break
end
+ else
+ match = false
end
else
match = false
@@ -1841,7 +2438,14 @@ local function normal_handle_contextchain(head,start,kind,chainname,contexts,seq
-- after
if match and s > l then
local current = last and getnext(last)
+ if not current then
+ if sweeptype == "post" or sweeptype == "replace" then
+ current = getnext(sweepnode)
+ -- sweeptype = nil
+ end
+ end
if current then
+ local discfound = nil
-- removed optimization for s-l == 1, we have to deal with marks anyway
local n = l + 1
while n <= s do
@@ -1861,19 +2465,81 @@ local function normal_handle_contextchain(head,start,kind,chainname,contexts,seq
elseif seq[n][char] then
n = n + 1
else
- match = false
+ if discfound then
+ notmatchreplace[discfound] = true
+ match = not notmatchpre[discfound]
+ else
+ match = false
+ end
break
end
+ else
+ if discfound then
+ notmatchreplace[discfound] = true
+ match = not notmatchpre[discfound]
+ else
+ match = false
+ end
+ break
+ end
+ else
+ if discfound then
+ notmatchreplace[discfound] = true
+ match = not notmatchpre[discfound]
else
match = false
+ end
+ break
+ end
+ elseif id == disc_code then
+ diskseen = true
+ discfound = current
+ notmatchpre[current] = nil
+ notmatchpost[current] = true
+ notmatchreplace[current] = nil
+ local pre = getfield(current,"pre")
+ local replace = getfield(current,"replace")
+ if pre then
+ local n = n
+ while pre do
+ if seq[n][getchar(pre)] then
+ n = n + 1
+ pre = getnext(pre)
+ if n > s then
+ break
+ end
+ else
+ notmatchpre[current] = true
+ break
+ end
+ end
+ if n <= s then
+ notmatchpre[current] = true
+ end
+ else
+ notmatchpre[current] = true
+ end
+ if replace then
+ -- so far we never entered this branch
+ while replace do
+ if seq[n][getchar(replace)] then
+ n = n + 1
+ replace = getnext(replace)
+ if n > s then
+ break
+ end
+ else
+ notmatchreplace[current] = true
+ match = notmatchpre[current]
+ break
+ end
+ end
+ if not match then
break
end
else
- match = false
- break
+ -- skip 'm
end
- elseif id == disc_code then
- -- skip 'm
elseif seq[n][32] then -- brrr
n = n + 1
else
@@ -1894,7 +2560,8 @@ local function normal_handle_contextchain(head,start,kind,chainname,contexts,seq
end
end
if match then
- -- ck == currentcontext
+ -- can lookups be of a different type ?
+ local diskchain = diskseen or sweepnode
if trace_contexts then
local rule, lookuptype, f, l = ck[1], ck[2], ck[4], ck[5]
local char = getchar(start)
@@ -1914,10 +2581,14 @@ local function normal_handle_contextchain(head,start,kind,chainname,contexts,seq
local chainlookupname = chainlookups[1]
local chainlookup = lookuptable[chainlookupname]
if chainlookup then
- local cp = chainprocs[chainlookup.type]
- if cp then
+ local chainproc = chainprocs[chainlookup.type]
+ if chainproc then
local ok
- head, start, ok = cp(head,start,last,kind,chainname,ck,lookuphash,chainlookup,chainlookupname,nil,sequence)
+ if diskchain then
+ head, start, ok = chaindisk(head,start,last,kind,chainname,ck,lookuphash,chainlookup,chainlookupname,nil,sequence,chainproc)
+ else
+ head, start, ok = chainproc(head,start,last,kind,chainname,ck,lookuphash,chainlookup,chainlookupname,nil,sequence)
+ end
if ok then
done = true
end
@@ -1929,13 +2600,13 @@ local function normal_handle_contextchain(head,start,kind,chainname,contexts,seq
end
else
local i = 1
- while true do
+ while start and true do
if skipped then
- while true do
+ while true do -- todo: use properties
local char = getchar(start)
local ccd = descriptions[char]
if ccd then
- local class = ccd.class
+ local class = ccd.class or "base"
if class == skipmark or class == skipligature or class == skipbase or (markclass and class == "mark" and not markclass[char]) then
start = getnext(start)
else
@@ -1946,36 +2617,51 @@ local function normal_handle_contextchain(head,start,kind,chainname,contexts,seq
end
end
end
+ -- see remark in ms standard under : LookupType 5: Contextual Substitution Subtable
local chainlookupname = chainlookups[i]
local chainlookup = lookuptable[chainlookupname]
if not chainlookup then
- -- okay, n matches, < n replacements
+ -- we just advance
i = i + 1
else
- local cp = chainmores[chainlookup.type]
- if not cp then
+ local chainproc = chainprocs[chainlookup.type]
+ if not chainproc then
-- actually an error
logprocess("%s: %s is not yet supported",cref(kind,chainname,chainlookupname),chainlookup.type)
i = i + 1
else
local ok, n
- head, start, ok, n = cp(head,start,last,kind,chainname,ck,lookuphash,chainlookup,chainlookupname,i,sequence)
+ if diskchain then
+ head, start, ok = chaindisk(head,start,last,kind,chainname,ck,lookuphash,chainlookup,chainlookupname,nil,sequence,chainproc)
+ else
+ head, start, ok, n = chainproc(head,start,last,kind,chainname,ck,lookuphash,chainlookup,chainlookupname,i,sequence)
+ end
-- messy since last can be changed !
if ok then
done = true
- -- skip next one(s) if ligature
- i = i + (n or 1)
- else
- i = i + 1
+ if n and n > 1 then
+ -- we have a ligature (cf the spec we advance one but we really need to test it
+ -- as there are fonts out there that are fuzzy and have too many lookups:
+ --
+ -- U+1105 U+119E U+1105 U+119E : sourcehansansklight: script=hang ccmp=yes
+ --
+ if i + n > nofchainlookups then
+ -- if trace_contexts then
+ -- logprocess("%s: quitting lookups",cref(kind,chainname))
+ -- end
+ break
+ else
+ -- we need to carry one
+ end
+ end
end
+ i = i + 1
end
end
- if i > nofchainlookups then
+ if i > nofchainlookups or not start then
break
elseif start then
start = getnext(start)
- else
- -- weird
end
end
end
@@ -1990,8 +2676,16 @@ local function normal_handle_contextchain(head,start,kind,chainname,contexts,seq
end
end
end
+ if done then
+ break -- out of contexts (new, needs checking)
+ end
end
end
+ if diskseen then -- maybe move up so that we can turn checking on/off
+ notmatchpre = { }
+ notmatchpost = { }
+ notmatchreplace = { }
+ end
return head, start, done
end
@@ -2076,13 +2770,13 @@ local function initialize(sequence,script,language,enabled)
local order = sequence.order
if order then
for i=1,#order do --
- local kind = order[i] --
+ local kind = order[i] --
local valid = enabled[kind]
if valid then
local scripts = features[kind] --
local languages = scripts[script] or scripts[wildcard]
if languages and (languages[language] or languages[wildcard]) then
- return { valid, autofeatures[kind] or false, sequence.chain or 0, kind, sequence }
+ return { valid, autofeatures[kind] or false, sequence, kind }
end
end
end
@@ -2126,32 +2820,216 @@ function otf.dataset(tfmdata,font) -- generic variant, overloaded in context
return rl
end
--- elseif id == glue_code then
--- if p[5] then -- chain
--- local pc = pp[32]
--- if pc then
--- start, ok = start, false -- p[1](start,kind,p[2],pc,p[3],p[4])
--- if ok then
--- done = true
--- end
--- if start then start = getnext(start) end
--- else
--- start = getnext(start)
--- end
--- else
--- start = getnext(start)
--- end
+-- assumptions:
+--
+-- * languages that use complex disc nodes
+
+local function kernrun(disc,run)
+ --
+ -- we catch <font 1><disc font 2>
+ --
+ if trace_kernruns then
+ report_run("kern") -- will be more detailed
+ end
+ --
+ local prev = getprev(disc) -- todo, keep these in the main loop
+ local next = getnext(disc) -- todo, keep these in the main loop
+ --
+ local pre = getfield(disc,"pre")
+ local post = getfield(disc,"post")
+ local replace = getfield(disc,"replace")
+ --
+ local prevmarks = prev
+ --
+ -- can be optional, because why on earth do we get a disc after a mark (okay, maybe when a ccmp
+ -- has happened but then it should be in the disc so basically this test indicates an error)
+ --
+ while prevmarks and getid(prevmarks) == glyph_code and marks[getchar(prevmarks)] and getfont(prevmarks) == currentfont and getsubtype(prevmarks) < 256 do
+ prevmarks = getprev(prevmarks)
+ end
+ --
+ if prev and (pre or replace) and not (getid(prev) == glyph_code and getfont(prev) == currentfont and getsubtype(prev)<256) then
+ prev = false
+ end
+ if next and (post or replace) and not (getid(next) == glyph_code and getfont(next) == currentfont and getsubtype(next)<256) then
+ next = false
+ end
+ --
+ if not pre then
+ -- go on
+ elseif prev then
+ local nest = getprev(pre)
+ setfield(pre,"prev",prev)
+ setfield(prev,"next",pre)
+ run(prevmarks,"preinjections")
+ setfield(pre,"prev",nest)
+ setfield(prev,"next",disc)
+ else
+ run(pre,"preinjections")
+ end
+ --
+ if not post then
+ -- go on
+ elseif next then
+ local tail = find_node_tail(post)
+ setfield(tail,"next",next)
+ setfield(next,"prev",tail)
+ run(post,"postinjections",next)
+ setfield(tail,"next",nil)
+ setfield(next,"prev",disc)
+ else
+ run(post,"postinjections")
+ end
+ --
+ if not replace and prev and next then
+ -- this should be already done by discfound
+ setfield(prev,"next",next)
+ setfield(next,"prev",prev)
+ run(prevmarks,"injections",next)
+ setfield(prev,"next",disc)
+ setfield(next,"prev",disc)
+ elseif prev and next then
+ local tail = find_node_tail(replace)
+ local nest = getprev(replace)
+ setfield(replace,"prev",prev)
+ setfield(prev,"next",replace)
+ setfield(tail,"next",next)
+ setfield(next,"prev",tail)
+ run(prevmarks,"replaceinjections",next)
+ setfield(replace,"prev",nest)
+ setfield(prev,"next",disc)
+ setfield(tail,"next",nil)
+ setfield(next,"prev",disc)
+ elseif prev then
+ local nest = getprev(replace)
+ setfield(replace,"prev",prev)
+ setfield(prev,"next",replace)
+ run(prevmarks,"replaceinjections")
+ setfield(replace,"prev",nest)
+ setfield(prev,"next",disc)
+ elseif next then
+ local tail = find_node_tail(replace)
+ setfield(tail,"next",next)
+ setfield(next,"prev",tail)
+ run(replace,"replaceinjections",next)
+ setfield(tail,"next",nil)
+ setfield(next,"prev",disc)
+ else
+ run(replace,"replaceinjections")
+ end
+end
--- there will be a new direction parser (pre-parsed etc)
+-- the if new test might be dangerous as luatex will check / set some tail stuff
+-- in a temp node
--- less bytecode: 290 -> 254
---
--- attr = attr or false
---
--- local a = getattr(start,0)
--- if (a == attr and (not attribute or getprop(start,a_state) == attribute)) or (not attribute or getprop(start,a_state) == attribute) then
--- -- the action
--- end
+local function comprun(disc,run)
+ if trace_compruns then
+ report_run("comp: %s",languages.serializediscretionary(disc))
+ end
+ --
+ local pre = getfield(disc,"pre")
+ if pre then
+ sweepnode = disc
+ sweeptype = "pre" -- in alternative code preinjections is used (also used then for proeprties, saves a variable)
+ local new, done = run(pre)
+ if done then
+ setfield(disc,"pre",new)
+ end
+ end
+ --
+ local post = getfield(disc,"post")
+ if post then
+ sweepnode = disc
+ sweeptype = "post"
+ local new, done = run(post)
+ if done then
+ setfield(disc,"post",new)
+ end
+ end
+ --
+ local replace = getfield(disc,"replace")
+ if replace then
+ sweepnode = disc
+ sweeptype = "replace"
+ local new, done = run(replace)
+ if done then
+ setfield(disc,"replace",new)
+ end
+ end
+ sweepnode = nil
+ sweeptype = nil
+end
+
+local function testrun(disc,trun,crun) -- use helper
+ local next = getnext(disc)
+ if next then
+ local replace = getfield(disc,"replace")
+ if replace then
+ local prev = getprev(disc)
+ if prev then
+ -- only look ahead
+ local tail = find_node_tail(replace)
+ -- local nest = getprev(replace)
+ setfield(tail,"next",next)
+ setfield(next,"prev",tail)
+ if trun(replace,next) then
+ setfield(disc,"replace",nil) -- beware, side effects of nest so first
+ setfield(prev,"next",replace)
+ setfield(replace,"prev",prev)
+ setfield(next,"prev",tail)
+ setfield(tail,"next",next)
+ setfield(disc,"prev",nil)
+ setfield(disc,"next",nil)
+ flush_node_list(disc)
+ return replace -- restart
+ else
+ setfield(tail,"next",nil)
+ setfield(next,"prev",disc)
+ end
+ else
+ -- weird case
+ end
+ else
+ -- no need
+ end
+ else
+ -- weird case
+ end
+ comprun(disc,crun)
+ return next
+end
+
+local function discrun(disc,drun,krun)
+ local next = getnext(disc)
+ local prev = getprev(disc)
+ if trace_discruns then
+ report_run("disc") -- will be more detailed
+ end
+ if next and prev then
+ setfield(prev,"next",next)
+ -- setfield(next,"prev",prev)
+ drun(prev)
+ setfield(prev,"next",disc)
+ -- setfield(next,"prev",disc)
+ end
+ --
+ local pre = getfield(disc,"pre")
+ if not pre then
+ -- go on
+ elseif prev then
+ local nest = getprev(pre)
+ setfield(pre,"prev",prev)
+ setfield(prev,"next",pre)
+ krun(prev,"preinjections")
+ setfield(pre,"prev",nest)
+ setfield(prev,"next",disc)
+ else
+ krun(pre,"preinjections")
+ end
+ return next
+end
+
+-- todo: maybe run lr and rl stretches
local function featuresprocessor(head,font,attr)
@@ -2180,6 +3058,7 @@ local function featuresprocessor(head,font,attr)
currentfont = font
rlmode = 0
+ sweephead = { }
local sequences = resources.sequences
local done = false
@@ -2195,23 +3074,27 @@ local function featuresprocessor(head,font,attr)
-- Keeping track of the headnode is needed for devanagari (I generalized it a bit
-- so that multiple cases are also covered.)
- -- todo: retain prev
+ -- We don't goto the next node of a disc node is created so that we can then treat
+ -- the pre, post and replace. It's abit of a hack but works out ok for most cases.
+
+ -- there can be less subtype and attr checking in the comprun etc helpers
for s=1,#datasets do
- local dataset = datasets[s]
- featurevalue = dataset[1] -- todo: pass to function instead of using a global
-
- local sequence = dataset[5] -- sequences[s] -- also dataset[5]
- local rlparmode = 0
- local topstack = 0
- local success = false
- local attribute = dataset[2]
- local chain = dataset[3] -- sequence.chain or 0
- local typ = sequence.type
- local subtables = sequence.subtables
- if chain < 0 then
+ local dataset = datasets[s]
+ featurevalue = dataset[1] -- todo: pass to function instead of using a global
+ local attribute = dataset[2]
+ local sequence = dataset[3] -- sequences[s] -- also dataset[5]
+ local kind = dataset[4]
+ ----- chain = dataset[5] -- sequence.chain or 0
+ local rlparmode = 0
+ local topstack = 0
+ local success = false
+ local typ = sequence.type
+ local gpossing = typ == "gpos_single" or typ == "gpos_pair" -- maybe all of them
+ local subtables = sequence.subtables
+ local handler = handlers[typ]
+ if typ == "gsub_reversecontextchain" then -- chain < 0
-- this is a limited case, no special treatments like 'init' etc
- local handler = handlers[typ]
-- we need to get rid of this slide! probably no longer needed in latest luatex
local start = find_node_tail(head) -- slow (we can store tail because there's always a skip at the end): todo
while start do
@@ -2225,13 +3108,15 @@ local function featuresprocessor(head,font,attr)
a = true
end
if a then
+ local char = getchar(start)
for i=1,#subtables do
local lookupname = subtables[i]
local lookupcache = lookuphash[lookupname]
if lookupcache then
- local lookupmatch = lookupcache[getchar(start)]
+ local lookupmatch = lookupcache[char]
if lookupmatch then
- head, start, success = handler(head,start,dataset[4],lookupname,lookupmatch,sequence,lookuphash,i)
+ -- todo: disc?
+ head, start, success = handler(head,start,kind,lookupname,lookupmatch,sequence,lookuphash,i)
if success then
break
end
@@ -2252,24 +3137,30 @@ local function featuresprocessor(head,font,attr)
end
end
else
- local handler = handlers[typ]
local ns = #subtables
local start = head -- local ?
rlmode = 0 -- to be checked ?
if ns == 1 then -- happens often
- local lookupname = subtables[1]
+ local lookupname = subtables[1]
local lookupcache = lookuphash[lookupname]
if not lookupcache then -- also check for empty cache
report_missing_cache(typ,lookupname)
else
- local function subrun(start)
- -- mostly for gsub, gpos would demand a more clever approach
- local head = start
- local done = false
+ local function c_run(head) -- no need to check for 256 and attr probably also the same
+ local done = false
+ local start = sweephead[head]
+ if start then
+ sweephead[head] = nil
+ else
+ start = head
+ end
while start do
local id = getid(start)
- if id == glyph_code and getfont(start) == font and getsubtype(start) < 256 then
+ if id ~= glyph_code then
+ -- very unlikely
+ start = getnext(start)
+ elseif getfont(start) == font and getsubtype(start) < 256 then
local a = getattr(start,0)
if a then
a = (a == attr) and (not attribute or getprop(start,a_state) == attribute)
@@ -2281,7 +3172,7 @@ local function featuresprocessor(head,font,attr)
if lookupmatch then
-- sequence kan weg
local ok
- head, start, ok = handler(head,start,dataset[4],lookupname,lookupmatch,sequence,lookuphash,1)
+ head, start, ok = handler(head,start,kind,lookupname,lookupmatch,sequence,lookuphash,1)
if ok then
done = true
end
@@ -2291,48 +3182,106 @@ local function featuresprocessor(head,font,attr)
start = getnext(start)
end
else
- start = getnext(start)
+ return head, false
end
end
if done then
- success = true
- return head
+ success = true -- needed in this subrun?
end
+ return head, done
end
- local function kerndisc(disc) -- we can assume that prev and next are glyphs
- local prev = getprev(disc)
- local next = getnext(disc)
- if prev and next then
- setfield(prev,"next",next)
- -- setfield(next,"prev",prev)
- local a = getattr(prev,0)
- if a then
- a = (a == attr) and (not attribute or getprop(prev,a_state) == attribute)
+ local function t_run(start,stop)
+ while start ~= stop do
+ local id = getid(start)
+ if id == glyph_code and getfont(start) == font and getsubtype(start) < 256 then
+ local a = getattr(start,0)
+ if a then
+ a = (a == attr) and (not attribute or getprop(start,a_state) == attribute)
+ else
+ a = not attribute or getprop(start,a_state) == attribute
+ end
+ if a then
+ local lookupmatch = lookupcache[getchar(start)]
+ if lookupmatch then -- hm, hyphens can match (tlig) so we need to really check
+ -- if we need more than ligatures we can outline the code and use functions
+ local s = getnext(start)
+ local l = nil
+ while s do
+ local lg = lookupmatch[getchar(s)]
+ if lg then
+ l = lg
+ s = getnext(s)
+ else
+ break
+ end
+ end
+ if l and l.ligature then
+ return true
+ end
+ end
+ end
+ start = getnext(start)
else
- a = not attribute or getprop(prev,a_state) == attribute
+ break
end
- if a then
- local lookupmatch = lookupcache[getchar(prev)]
- if lookupmatch then
- -- sequence kan weg
- local h, d, ok = handler(head,prev,dataset[4],lookupname,lookupmatch,sequence,lookuphash,1)
- if ok then
- done = true
- success = true
+ end
+ end
+
+ local function d_run(prev) -- we can assume that prev and next are glyphs
+ local a = getattr(prev,0)
+ if a then
+ a = (a == attr) and (not attribute or getprop(prev,a_state) == attribute)
+ else
+ a = not attribute or getprop(prev,a_state) == attribute
+ end
+ if a then
+ local lookupmatch = lookupcache[getchar(prev)]
+ if lookupmatch then
+ -- sequence kan weg
+ local h, d, ok = handler(head,prev,kind,lookupname,lookupmatch,sequence,lookuphash,1)
+ if ok then
+ done = true
+ success = true
+ end
+ end
+ end
+ end
+
+ local function k_run(sub,injection,last)
+ local a = getattr(sub,0)
+ if a then
+ a = (a == attr) and (not attribute or getprop(sub,a_state) == attribute)
+ else
+ a = not attribute or getprop(sub,a_state) == attribute
+ end
+ if a then
+ -- sequence kan weg
+ for n in traverse_nodes(sub) do -- only gpos
+ if n == last then
+ break
+ end
+ local id = getid(n)
+ if id == glyph_code then
+ local lookupmatch = lookupcache[getchar(n)]
+ if lookupmatch then
+ local h, d, ok = handler(sub,n,kind,lookupname,lookupmatch,sequence,lookuphash,1,injection)
+ if ok then
+ done = true
+ success = true
+ end
end
+ else
+ -- message
end
end
- setfield(prev,"next",disc)
- -- setfield(next,"prev",disc)
end
- return next
end
while start do
local id = getid(start)
if id == glyph_code then
- if getfont(start) == font and getsubtype(start) < 256 then
+ if getfont(start) == font and getsubtype(start) < 256 then -- why a 256 test ...
local a = getattr(start,0)
if a then
a = (a == attr) and (not attribute or getprop(start,a_state) == attribute)
@@ -2340,59 +3289,52 @@ local function featuresprocessor(head,font,attr)
a = not attribute or getprop(start,a_state) == attribute
end
if a then
- local lookupmatch = lookupcache[getchar(start)]
+ local char = getchar(start)
+ local lookupmatch = lookupcache[char]
if lookupmatch then
-- sequence kan weg
local ok
- head, start, ok = handler(head,start,dataset[4],lookupname,lookupmatch,sequence,lookuphash,1)
+ head, start, ok = handler(head,start,kind,lookupname,lookupmatch,sequence,lookuphash,1)
if ok then
success = true
+ elseif gpossing and zwnjruns and char == zwnj then
+ discrun(start,d_run)
end
+ elseif gpossing and zwnjruns and char == zwnj then
+ discrun(start,d_run)
end
if start then start = getnext(start) end
else
- start = getnext(start)
+ start = getnext(start)
end
else
start = getnext(start)
end
elseif id == disc_code then
- -- mostly for gsub
- if getsubtype(start) == discretionary_code then
- local pre = getfield(start,"pre")
- if pre then
- local new = subrun(pre)
- if new then setfield(start,"pre",new) end
- end
- local post = getfield(start,"post")
- if post then
- local new = subrun(post)
- if new then setfield(start,"post",new) end
- end
- local replace = getfield(start,"replace")
- if replace then
- local new = subrun(replace)
- if new then setfield(start,"replace",new) end
- end
-elseif typ == "gpos_single" or typ == "gpos_pair" then
- kerndisc(start)
+ if gpossing then
+ kernrun(start,k_run)
+ start = getnext(start)
+ elseif typ == "gsub_ligature" then
+ start = testrun(start,t_run,c_run)
+ else
+ comprun(start,c_run)
+ start = getnext(start)
end
- start = getnext(start)
elseif id == whatsit_code then -- will be function
local subtype = getsubtype(start)
if subtype == dir_code then
local dir = getfield(start,"dir")
- if dir == "+TRT" or dir == "+TLT" then
+ if dir == "+TLT" then
topstack = topstack + 1
dirstack[topstack] = dir
- elseif dir == "-TRT" or dir == "-TLT" then
- topstack = topstack - 1
- end
- local newdir = dirstack[topstack]
- if newdir == "+TRT" then
- rlmode = -1
- elseif newdir == "+TLT" then
rlmode = 1
+ elseif dir == "+TRT" then
+ topstack = topstack + 1
+ dirstack[topstack] = dir
+ rlmode = -1
+ elseif dir == "-TLT" or dir == "-TRT" then
+ topstack = topstack - 1
+ rlmode = dirstack[topstack] == "+TRT" and -1 or 1
else
rlmode = rlparmode
end
@@ -2422,15 +3364,23 @@ elseif typ == "gpos_single" or typ == "gpos_pair" then
end
end
end
+
else
- local function subrun(start)
- -- mostly for gsub, gpos would demand a more clever approach
- local head = start
- local done = false
+ local function c_run(head)
+ local done = false
+ local start = sweephead[head]
+ if start then
+ sweephead[head] = nil
+ else
+ start = head
+ end
while start do
local id = getid(start)
- if id == glyph_code and getfont(start) == font and getsubtype(start) < 256 then
+ if id ~= glyph_code then
+ -- very unlikely
+ start = getnext(start)
+ elseif getfont(start) == font and getsubtype(start) < 256 then
local a = getattr(start,0)
if a then
a = (a == attr) and (not attribute or getprop(start,a_state) == attribute)
@@ -2438,15 +3388,16 @@ elseif typ == "gpos_single" or typ == "gpos_pair" then
a = not attribute or getprop(start,a_state) == attribute
end
if a then
+ local char = getchar(start)
for i=1,ns do
local lookupname = subtables[i]
local lookupcache = lookuphash[lookupname]
if lookupcache then
- local lookupmatch = lookupcache[getchar(start)]
+ local lookupmatch = lookupcache[char]
if lookupmatch then
-- we could move all code inline but that makes things even more unreadable
local ok
- head, start, ok = handler(head,start,dataset[4],lookupname,lookupmatch,sequence,lookuphash,i)
+ head, start, ok = handler(head,start,kind,lookupname,lookupmatch,sequence,lookuphash,i)
if ok then
done = true
break
@@ -2464,50 +3415,127 @@ elseif typ == "gpos_single" or typ == "gpos_pair" then
start = getnext(start)
end
else
- start = getnext(start)
+ return head, false
end
end
if done then
success = true
- return head
end
+ return head, done
end
- local function kerndisc(disc) -- we can assume that prev and next are glyphs
- local prev = getprev(disc)
- local next = getnext(disc)
- if prev and next then
- setfield(prev,"next",next)
- -- setfield(next,"prev",prev)
- local a = getattr(prev,0)
- if a then
- a = (a == attr) and (not attribute or getprop(prev,a_state) == attribute)
- else
- a = not attribute or getprop(prev,a_state) == attribute
+ local function d_run(prev)
+ local a = getattr(prev,0)
+ if a then
+ a = (a == attr) and (not attribute or getprop(prev,a_state) == attribute)
+ else
+ a = not attribute or getprop(prev,a_state) == attribute
+ end
+ if a then
+ -- brr prev can be disc
+ local char = getchar(prev)
+ for i=1,ns do
+ local lookupname = subtables[i]
+ local lookupcache = lookuphash[lookupname]
+ if lookupcache then
+ local lookupmatch = lookupcache[char]
+ if lookupmatch then
+ -- we could move all code inline but that makes things even more unreadable
+ local h, d, ok = handler(head,prev,kind,lookupname,lookupmatch,sequence,lookuphash,i)
+ if ok then
+ done = true
+ break
+ end
+ end
+ else
+ report_missing_cache(typ,lookupname)
+ end
end
- if a then
- for i=1,ns do
- local lookupname = subtables[i]
- local lookupcache = lookuphash[lookupname]
- if lookupcache then
- local lookupmatch = lookupcache[getchar(prev)]
- if lookupmatch then
- -- we could move all code inline but that makes things even more unreadable
- local h, d, ok = handler(head,prev,dataset[4],lookupname,lookupmatch,sequence,lookuphash,i)
- if ok then
- done = true
- break
+ end
+ end
+
+ local function k_run(sub,injection,last)
+ local a = getattr(sub,0)
+ if a then
+ a = (a == attr) and (not attribute or getprop(sub,a_state) == attribute)
+ else
+ a = not attribute or getprop(sub,a_state) == attribute
+ end
+ if a then
+ for n in traverse_nodes(sub) do -- only gpos
+ if n == last then
+ break
+ end
+ local id = getid(n)
+ if id == glyph_code then
+ local char = getchar(n)
+ for i=1,ns do
+ local lookupname = subtables[i]
+ local lookupcache = lookuphash[lookupname]
+ if lookupcache then
+ local lookupmatch = lookupcache[char]
+ if lookupmatch then
+ local h, d, ok = handler(head,n,kind,lookupname,lookupmatch,sequence,lookuphash,i,injection)
+ if ok then
+ done = true
+ break
+ end
end
+ else
+ report_missing_cache(typ,lookupname)
+ end
+ end
+ else
+ -- message
+ end
+ end
+ end
+ end
+
+ local function t_run(start,stop)
+ while start ~= stop do
+ local id = getid(start)
+ if id == glyph_code and getfont(start) == font and getsubtype(start) < 256 then
+ local a = getattr(start,0)
+ if a then
+ a = (a == attr) and (not attribute or getprop(start,a_state) == attribute)
+ else
+ a = not attribute or getprop(start,a_state) == attribute
+ end
+ if a then
+ local char = getchar(start)
+ for i=1,ns do
+ local lookupname = subtables[i]
+ local lookupcache = lookuphash[lookupname]
+ if lookupcache then
+ local lookupmatch = lookupcache[char]
+ if lookupmatch then
+ -- if we need more than ligatures we can outline the code and use functions
+ local s = getnext(start)
+ local l = nil
+ while s do
+ local lg = lookupmatch[getchar(s)]
+ if lg then
+ l = lg
+ s = getnext(s)
+ else
+ break
+ end
+ end
+ if l and l.ligature then
+ return true
+ end
+ end
+ else
+ report_missing_cache(typ,lookupname)
end
- else
- report_missing_cache(typ,lookupname)
end
end
+ start = getnext(start)
+ else
+ break
end
- setfield(prev,"next",disc)
- -- setfield(next,"prev",disc)
end
- return next
end
while start do
@@ -2522,21 +3550,26 @@ elseif typ == "gpos_single" or typ == "gpos_pair" then
end
if a then
for i=1,ns do
- local lookupname = subtables[i]
+ local lookupname = subtables[i]
local lookupcache = lookuphash[lookupname]
if lookupcache then
- local lookupmatch = lookupcache[getchar(start)]
+ local char = getchar(start)
+ local lookupmatch = lookupcache[char]
if lookupmatch then
-- we could move all code inline but that makes things even more unreadable
local ok
- head, start, ok = handler(head,start,dataset[4],lookupname,lookupmatch,sequence,lookuphash,i)
+ head, start, ok = handler(head,start,kind,lookupname,lookupmatch,sequence,lookuphash,i)
if ok then
success = true
break
elseif not start then
-- don't ask why ... shouldn't happen
break
+ elseif gpossing and zwnjruns and char == zwnj then
+ discrun(start,d_run)
end
+ elseif gpossing and zwnjruns and char == zwnj then
+ discrun(start,d_run)
end
else
report_missing_cache(typ,lookupname)
@@ -2550,42 +3583,30 @@ elseif typ == "gpos_single" or typ == "gpos_pair" then
start = getnext(start)
end
elseif id == disc_code then
- -- mostly for gsub
- if getsubtype(start) == discretionary_code then
- local pre = getfield(start,"pre")
- if pre then
- local new = subrun(pre)
- if new then setfield(start,"pre",new) end
- end
- local post = getfield(start,"post")
- if post then
- local new = subrun(post)
- if new then setfield(start,"post",new) end
- end
- local replace = getfield(start,"replace")
- if replace then
- local new = subrun(replace)
- if new then setfield(start,"replace",new) end
- end
-elseif typ == "gpos_single" or typ == "gpos_pair" then
- kerndisc(start)
+ if gpossing then
+ kernrun(start,k_run)
+ start = getnext(start)
+ elseif typ == "gsub_ligature" then
+ start = testrun(start,t_run,c_run)
+ else
+ comprun(start,c_run)
+ start = getnext(start)
end
- start = getnext(start)
elseif id == whatsit_code then
local subtype = getsubtype(start)
if subtype == dir_code then
local dir = getfield(start,"dir")
- if dir == "+TRT" or dir == "+TLT" then
+ if dir == "+TLT" then
topstack = topstack + 1
dirstack[topstack] = dir
- elseif dir == "-TRT" or dir == "-TLT" then
- topstack = topstack - 1
- end
- local newdir = dirstack[topstack]
- if newdir == "+TRT" then
- rlmode = -1
- elseif newdir == "+TLT" then
rlmode = 1
+ elseif dir == "+TRT" then
+ topstack = topstack + 1
+ dirstack[topstack] = dir
+ rlmode = -1
+ elseif dir == "-TLT" or dir == "-TRT" then
+ topstack = topstack - 1
+ rlmode = dirstack[topstack] == "+TRT" and -1 or 1
else
rlmode = rlparmode
end
@@ -2629,6 +3650,8 @@ elseif typ == "gpos_single" or typ == "gpos_pair" then
return head, done
end
+-- this might move to the loader
+
local function generic(lookupdata,lookupname,unicode,lookuphash)
local target = lookuphash[lookupname]
if target then
@@ -2638,47 +3661,48 @@ local function generic(lookupdata,lookupname,unicode,lookuphash)
end
end
-local action = {
+local function ligature(lookupdata,lookupname,unicode,lookuphash)
+ local target = lookuphash[lookupname]
+ if not target then
+ target = { }
+ lookuphash[lookupname] = target
+ end
+ for i=1,#lookupdata do
+ local li = lookupdata[i]
+ local tu = target[li]
+ if not tu then
+ tu = { }
+ target[li] = tu
+ end
+ target = tu
+ end
+ target.ligature = unicode
+end
+
+local function pair(lookupdata,lookupname,unicode,lookuphash)
+ local target = lookuphash[lookupname]
+ if not target then
+ target = { }
+ lookuphash[lookupname] = target
+ end
+ local others = target[unicode]
+ local paired = lookupdata[1]
+ if others then
+ others[paired] = lookupdata
+ else
+ others = { [paired] = lookupdata }
+ target[unicode] = others
+ end
+end
+local action = {
substitution = generic,
multiple = generic,
alternate = generic,
position = generic,
-
- ligature = function(lookupdata,lookupname,unicode,lookuphash)
- local target = lookuphash[lookupname]
- if not target then
- target = { }
- lookuphash[lookupname] = target
- end
- for i=1,#lookupdata do
- local li = lookupdata[i]
- local tu = target[li]
- if not tu then
- tu = { }
- target[li] = tu
- end
- target = tu
- end
- target.ligature = unicode
- end,
-
- pair = function(lookupdata,lookupname,unicode,lookuphash)
- local target = lookuphash[lookupname]
- if not target then
- target = { }
- lookuphash[lookupname] = target
- end
- local others = target[unicode]
- local paired = lookupdata[1]
- if others then
- others[paired] = lookupdata
- else
- others = { [paired] = lookupdata }
- target[unicode] = others
- end
- end,
-
+ ligature = ligature,
+ pair = pair,
+ kern = pair,
}
local function prepare_lookups(tfmdata)
@@ -2691,12 +3715,17 @@ local function prepare_lookups(tfmdata)
local lookuptypes = resources.lookuptypes
local characters = tfmdata.characters
local descriptions = tfmdata.descriptions
+ local duplicates = resources.duplicates
-- we cannot free the entries in the descriptions as sometimes we access
-- then directly (for instance anchors) ... selectively freeing does save
-- much memory as it's only a reference to a table and the slot in the
-- description hash is not freed anyway
+ -- we can delay this using metatables so that we don't make the hashes for
+ -- features we don't use but then we need to loop over the characters
+ -- many times so we gain nothing
+
for unicode, character in next, characters do -- we cannot loop over descriptions !
local description = descriptions[unicode]
@@ -2706,7 +3735,7 @@ local function prepare_lookups(tfmdata)
local lookups = description.slookups
if lookups then
for lookupname, lookupdata in next, lookups do
- action[lookuptypes[lookupname]](lookupdata,lookupname,unicode,lookuphash)
+ action[lookuptypes[lookupname]](lookupdata,lookupname,unicode,lookuphash,duplicates)
end
end
@@ -2716,7 +3745,7 @@ local function prepare_lookups(tfmdata)
local lookuptype = lookuptypes[lookupname]
for l=1,#lookuplist do
local lookupdata = lookuplist[l]
- action[lookuptype](lookupdata,lookupname,unicode,lookuphash)
+ action[lookuptype](lookupdata,lookupname,unicode,lookuphash,duplicates)
end
end
end
@@ -2740,7 +3769,7 @@ local function prepare_lookups(tfmdata)
for name, anchor in next, anchors do
local lookups = anchor_to_lookup[name]
if lookups then
- for lookup, _ in next, lookups do
+ for lookup in next, lookups do
local target = lookuphash[lookup]
if target then
target[unicode] = anchors
@@ -2760,6 +3789,8 @@ local function prepare_lookups(tfmdata)
end
+-- so far
+
local function split(replacement,original)
local result = { }
for i=1,#replacement do
@@ -2835,7 +3866,7 @@ local function prepare_contextchains(tfmdata)
-- use sequence[start] instead but it's somewhat ugly.
nt = nt + 1
t[nt] = { nofrules, lookuptype, sequence, start, stop, rule.lookups, replacements }
- for unic, _ in next, sequence[start] do
+ for unic in next, sequence[start] do
local cu = contexts[unic]
if not cu then
contexts[unic] = t
diff --git a/src/fontloader/misc/fontloader-fonts.lua b/src/fontloader/misc/fontloader-fonts.lua
index c81e8cd..f18ba35 100644
--- a/src/fontloader/misc/fontloader-fonts.lua
+++ b/src/fontloader/misc/fontloader-fonts.lua
@@ -27,16 +27,10 @@ if not modules then modules = { } end modules ['luatex-fonts'] = {
-- also add more helper code here, but that depends to what extend metatex (sidetrack of context)
-- evolves into a low level layer (depends on time, as usual).
-texio.write_nl("")
-texio.write_nl("--------------------------------------------------------------------------------")
-texio.write_nl("The font code has been brought in sync with the context version of 2014.12.21 so")
-texio.write_nl("if things don't work out as expected the interfacing needs to be checked. When")
-texio.write_nl("this works as expected a second upgrade will happen that gives a more complete")
-texio.write_nl("support and another sync with the context code (that new code is currently being")
-texio.write_nl("tested. The base pass is now integrated in the main pass. The results can differ")
-texio.write_nl("from those in context because there we integrate some mechanisms differently.")
-texio.write_nl("--------------------------------------------------------------------------------")
-texio.write_nl("")
+-- The code here is the same as in context version 2015.09.11 but the rendering in context can be
+-- different from generic. This can be a side effect of additional callbacks, additional features
+-- and interferences between mechanisms between macro packages. We use the rendering in context
+-- and luatex-plain as reference for issues.
utf = utf or unicode.utf8
@@ -221,9 +215,9 @@ if non_generic_context.luatex_fonts.skip_loading ~= true then
loadmodule('font-oti.lua')
loadmodule('font-otf.lua')
loadmodule('font-otb.lua')
- loadmodule('luatex-fonts-inj.lua')
+ loadmodule('luatex-fonts-inj.lua') -- normally the same as font-inj.lua
loadmodule('luatex-fonts-ota.lua')
- loadmodule('luatex-fonts-otn.lua')
+ loadmodule('luatex-fonts-otn.lua') -- normally the same as font-otn.lua
loadmodule('font-otp.lua')
loadmodule('luatex-fonts-lua.lua')
loadmodule('font-def.lua') -- this code (stripped) might end up in luatex-fonts-def.lua
diff --git a/src/fontloader/misc/fontloader-l-lpeg.lua b/src/fontloader/misc/fontloader-l-lpeg.lua
index 55a0d89..5be1246 100644
--- a/src/fontloader/misc/fontloader-l-lpeg.lua
+++ b/src/fontloader/misc/fontloader-l-lpeg.lua
@@ -82,7 +82,7 @@ local lpegtype, lpegmatch, lpegprint = lpeg.type, lpeg.match, lpeg.print
-- let's start with an inspector:
if setinspector then
- setinspector(function(v) if lpegtype(v) then lpegprint(v) return true end end)
+ setinspector("lpeg",function(v) if lpegtype(v) then lpegprint(v) return true end end)
end
-- Beware, we predefine a bunch of patterns here and one reason for doing so
diff --git a/src/fontloader/misc/fontloader-l-lua.lua b/src/fontloader/misc/fontloader-l-lua.lua
index 1a2a987..cb61829 100644
--- a/src/fontloader/misc/fontloader-l-lua.lua
+++ b/src/fontloader/misc/fontloader-l-lua.lua
@@ -129,22 +129,36 @@ local print, select, tostring = print, select, tostring
local inspectors = { }
-function setinspector(inspector) -- global function
- inspectors[#inspectors+1] = inspector
+function setinspector(kind,inspector) -- global function
+ inspectors[kind] = inspector
end
function inspect(...) -- global function
for s=1,select("#",...) do
local value = select(s,...)
- local done = false
- for i=1,#inspectors do
- done = inspectors[i](value)
- if done then
- break
+ if value == nil then
+ print("nil")
+ else
+ local done = false
+ -- type driven (table)
+ local kind = type(value)
+ local inspector = inspectors[kind]
+ if inspector then
+ done = inspector(value)
+ if done then
+ break
+ end
+ end
+ -- whatever driven (token, node, ...)
+ for kind, inspector in next, inspectors do
+ done = inspector(value)
+ if done then
+ break
+ end
+ end
+ if not done then
+ print(tostring(value))
end
- end
- if not done then
- print(tostring(value))
end
end
end
diff --git a/src/fontloader/misc/fontloader-l-string.lua b/src/fontloader/misc/fontloader-l-string.lua
index 70c66f6..e9dc2bb 100644
--- a/src/fontloader/misc/fontloader-l-string.lua
+++ b/src/fontloader/misc/fontloader-l-string.lua
@@ -192,10 +192,11 @@ string.itself = function(s) return s end
-- also handy (see utf variant)
-local pattern = Ct(C(1)^0) -- string and not utf !
+local pattern_c = Ct( C(1) ^0) -- string and not utf !
+local pattern_b = Ct((C(1)/byte)^0)
-function string.totable(str)
- return lpegmatch(pattern,str)
+function string.totable(str,bytes)
+ return lpegmatch(bytes and pattern_b or pattern_c,str)
end
-- handy from within tex:
diff --git a/src/fontloader/misc/fontloader-l-table.lua b/src/fontloader/misc/fontloader-l-table.lua
index b02f210..552097e 100644
--- a/src/fontloader/misc/fontloader-l-table.lua
+++ b/src/fontloader/misc/fontloader-l-table.lua
@@ -1144,7 +1144,7 @@ function table.print(t,...)
end
if setinspector then
- setinspector(function(v) if type(v) == "table" then serialize(print,v,"table") return true end end)
+ setinspector("table",function(v) if type(v) == "table" then serialize(print,v,"table") return true end end)
end
-- -- -- obsolete but we keep them for a while and might comment them later -- -- --
diff --git a/src/fontloader/misc/fontloader-mplib.lua b/src/fontloader/misc/fontloader-mplib.lua
index c6628ac..fd6eb97 100644
--- a/src/fontloader/misc/fontloader-mplib.lua
+++ b/src/fontloader/misc/fontloader-mplib.lua
@@ -22,7 +22,9 @@ if metapost and metapost.version then
else
- local format, concat, abs, match = string.format, table.concat, math.abs, string.match
+ local format, match, gsub = string.format, string.match, string.gsub
+ local concat = table.concat
+ local abs = math.abs
local mplib = require ('mplib')
local kpse = require ('kpse')
@@ -144,10 +146,101 @@ else
metapost.make = metapost.make or function()
end
+ local template = [[
+ \pdfoutput=1
+ \pdfpkresolution600
+ \pdfcompresslevel=9
+ %s\relax
+ \hsize=100in
+ \vsize=\hsize
+ \hoffset=-1in
+ \voffset=\hoffset
+ \topskip=0pt
+ \setbox0=\hbox{%s}\relax
+ \pageheight=\ht0
+ \pagewidth=\wd0
+ \box0
+ \bye
+ ]]
+
+ metapost.texrunner = "mtxrun --script plain"
+
+ local texruns = 0 -- per document
+ local texhash = { } -- per document
+
+ function metapost.maketext(mpd,str,what)
+ -- inefficient but one can always use metafun .. it's more a test
+ -- feature
+ local verbatimtex = mpd.verbatimtex
+ if not verbatimtex then
+ verbatimtex = { }
+ mpd.verbatimtex = verbatimtex
+ end
+ if what == 1 then
+ table.insert(verbatimtex,str)
+ else
+ local texcode = format(template,concat(verbatimtex,"\n"),str)
+ local texdone = texhash[texcode]
+ local jobname = tex.jobname
+ if not texdone then
+ texruns = texruns + 1
+ texdone = texruns
+ texhash[texcode] = texdone
+ local texname = format("%s-mplib-%s.tmp",jobname,texdone)
+ local logname = format("%s-mplib-%s.log",jobname,texdone)
+ local pdfname = format("%s-mplib-%s.pdf",jobname,texdone)
+ io.savedata(texname,texcode)
+ os.execute(format("%s %s",metapost.texrunner,texname))
+ os.remove(texname)
+ os.remove(logname)
+ end
+ return format('"image::%s-mplib-%s.pdf" infont defaultfont',jobname,texdone)
+ end
+ end
+
+ local function mpprint(buffer,...)
+ for i=1,select("#",...) do
+ local value = select(i,...)
+ if value ~= nil then
+ local t = type(value)
+ if t == "number" then
+ buffer[#buffer+1] = format("%.16f",value)
+ elseif t == "string" then
+ buffer[#buffer+1] = value
+ elseif t == "table" then
+ buffer[#buffer+1] = "(" .. concat(value,",") .. ")"
+ else -- boolean or whatever
+ buffer[#buffer+1] = tostring(value)
+ end
+ end
+ end
+ end
+
+ function metapost.runscript(mpd,code)
+ local code = loadstring(code)
+ if type(code) == "function" then
+ local buffer = { }
+ function metapost.print(...)
+ mpprint(buffer,...)
+ end
+ code()
+ -- mpd.buffer = buffer -- for tracing
+ return concat(buffer,"")
+ end
+ return ""
+ end
+
function metapost.load(name)
+ local mpd = {
+ buffer = { },
+ verbatim = { }
+ }
local mpx = mplib.new {
ini_version = true,
- find_file = metapost.finder,
+ find_file = metapost.finder,
+ make_text = function(...) return metapost.maketext (mpd,...) end,
+ run_script = function(...) return metapost.runscript(mpd,...) end,
+ extensions = 1,
}
local result
if not mpx then
@@ -217,8 +310,8 @@ else
return figure:objects()
end
- function metapost.convert(result, flusher)
- metapost.flush(result, flusher)
+ function metapost.convert(result,flusher)
+ metapost.flush(result,flusher)
return true -- done
end
@@ -239,8 +332,13 @@ else
end
function pdf_textfigure(font,size,text,width,height,depth)
- text = text:gsub(".","\\hbox{%1}") -- kerning happens in metapost
- tex.sprint(format("\\MPLIBtextext{%s}{%s}{%s}{%s}{%s}",font,size,text,0,-( 7200/ 7227)/65536*depth))
+ local how, what = match(text,"^(.-)::(.+)$")
+ if how == "image" then
+ tex.sprint(format("\\MPLIBpdftext{%s}{%s}",what,depth))
+ else
+ text = gsub(text,".","\\hbox{%1}") -- kerning happens in metapost
+ tex.sprint(format("\\MPLIBtextext{%s}{%s}{%s}{%s}",font,size,text,depth))
+ end
end
local bend_tolerance = 131/65536
@@ -375,8 +473,10 @@ else
pdf_literalcode("Q")
else
local cs = object.color
+ local cr = false
if cs and #cs > 0 then
- pdf_literalcode(metapost.colorconverter(cs))
+ cs, cr = metapost.colorconverter(cs)
+ pdf_literalcode(cs)
end
local ml = object.miterlimit
if ml and ml ~= miterlimit then
diff --git a/src/fontloader/misc/fontloader-mplib.tex b/src/fontloader/misc/fontloader-mplib.tex
index 09dd179..f9de4b2 100644
--- a/src/fontloader/misc/fontloader-mplib.tex
+++ b/src/fontloader/misc/fontloader-mplib.tex
@@ -106,15 +106,14 @@
%D Text items have a special handler:
-\def\MPLIBtextext#1#2#3#4#5%
+\def\MPLIBtextext#1#2#3#4%
{\begingroup
\setbox\mplibscratchbox\hbox
{\font\temp=#1 at #2bp%
\temp
#3}%
\setbox\mplibscratchbox\hbox
- {\hskip#4 bp%
- \raise#5 bp%
+ {\raise#4sp%
\box\mplibscratchbox}%
\wd\mplibscratchbox0pt%
\ht\mplibscratchbox0pt%
@@ -122,4 +121,20 @@
\box\mplibscratchbox
\endgroup}
+\def\MPLIBpdftext#1#2%
+ {\ifcsname mplib::#1\endcsname
+ % already done, forgotten outside convert group
+ \message{<reusing mplib: #1>}%
+ \else
+ \message{<embedding mplib: #1>}%
+ \immediate\pdfximage{#1}% we cannot remove the file as it is included last
+ \expandafter\edef\csname mplib::#1\endcsname{\the\pdflastximage}%
+ \fi
+ \setbox\mplibscratchbox\hbox
+ {\raise#2sp\hbox{\pdfrefximage\csname mplib::#1\endcsname}}%
+ \wd\mplibscratchbox0pt%
+ \ht\mplibscratchbox0pt%
+ \dp\mplibscratchbox0pt%
+ \box\mplibscratchbox}
+
\endinput
diff --git a/src/fontloader/misc/fontloader-plain.tex b/src/fontloader/misc/fontloader-plain.tex
index c9a9e36..9902c49 100644
--- a/src/fontloader/misc/fontloader-plain.tex
+++ b/src/fontloader/misc/fontloader-plain.tex
@@ -11,7 +11,26 @@
\directlua {tex.enableprimitives('', tex.extraprimitives())}
-\pdfoutput=1
+% We assume that pdf is used.
+
+\pdfoutput 1
+
+% We set the page dimensions because otherwise the backend does weird things
+% when we have for instance this on a line of its own:
+%
+% \hbox to 100cm {\hss wide indeed\hss}
+%
+% The page dimension calculation is a fuzzy one as there are some compensations
+% for the \hoffset and \voffset and such. I remember long discussions and much
+% trial and error in figuring this out during pdftex development times. Where
+% a dvi driver will project on a papersize (and thereby clip) the pdf backend
+% has to deal with the lack of a page concept on tex by some guessing. Normally
+% a macro package will set the dimensions to something reasonable anyway.
+
+\pagewidth 8.5in
+\pageheight 11.0in
+
+% We load some code at runtime:
\everyjob \expandafter {%
\the\everyjob
@@ -20,9 +39,11 @@
\input {luatex-math}%
\input {luatex-languages}%
\input {luatex-mplib}%
- % \input {luatex-gadgets}%
+ \input {luatex-gadgets}%
}
+% We also patch the version number:
+
\edef\fmtversion{\fmtversion+luatex}
\dump
diff --git a/src/fontloader/misc/fontloader-test.tex b/src/fontloader/misc/fontloader-test.tex
index 6f48e0c..f851aab 100644
--- a/src/fontloader/misc/fontloader-test.tex
+++ b/src/fontloader/misc/fontloader-test.tex
@@ -1,3 +1,5 @@
+% texformat=luatex-plain
+
%D \module
%D [ file=luatex-test,
%D version=2009.12.01,
@@ -33,12 +35,12 @@
\font\mathtest=cambria(math) {\mathtest 123}
-\font\gothic=msgothic(ms-gothic) {\gothic whatever}
+% \font\gothic=msgothic(ms-gothic) {\gothic whatever} % no longer in windows 10
\bgroup
- \pdfprotrudechars2
- \pdfadjustspacing2
+ \ifdefined\pdfprotrudechars \pdfprotrudechars \else \protrudechars \fi 2 \relax
+ \ifdefined\pdfadjustspacing \pdfadjustspacing \else \adjustspacing \fi 2 \relax
\font\testb=file:lmroman12-regular:+liga;extend=1.5 at 12pt \testb \input tufte \par
\font\testb=file:lmroman12-regular:+liga;slant=0.8 at 12pt \testb \input tufte \par
@@ -48,12 +50,30 @@
\setmplibformat{plain}
+\directlua {
+ function MpTest()
+ metapost.print("fullcircle scaled 3cm")
+ end
+}
+
\mplibcode
beginfig(1) ;
draw fullcircle
scaled 10cm
withcolor red
withpen pencircle xscaled 4mm yscaled 2mm rotated 30 ;
+ draw "test" infont defaultfont scaled 4 ;
+ verbatimtex \sl etex;
+ draw btex some more test etex scaled 2 ;
+ currentpicture := currentpicture shifted (0,1cm) ;
+ verbatimtex \bf etex;
+ draw btex another test etex scaled 2 ;
+ currentpicture := currentpicture shifted (0,1cm) ;
+ draw btex another test etex scaled 2 ;
+ draw
+ runscript("MpTest()")
+ withcolor green
+ withpen pencircle xscaled 2mm yscaled 1mm rotated 20 ;
endfig ;
\endmplibcode
diff --git a/src/fontloader/misc/fontloader-util-str.lua b/src/fontloader/misc/fontloader-util-str.lua
index c2139b1..95534c8 100644
--- a/src/fontloader/misc/fontloader-util-str.lua
+++ b/src/fontloader/misc/fontloader-util-str.lua
@@ -6,7 +6,7 @@ if not modules then modules = { } end modules ['util-str'] = {
license = "see context related readme files"
}
-utilities = utilities or {}
+utilities = utilities or { }
utilities.strings = utilities.strings or { }
local strings = utilities.strings
@@ -354,7 +354,16 @@ function string.autosingle(s,sep)
return ("'" .. tostring(s) .. "'")
end
-local tracedchars = { }
+local tracedchars = { [0] =
+ -- the regular bunch
+ "[null]", "[soh]", "[stx]", "[etx]", "[eot]", "[enq]", "[ack]", "[bel]",
+ "[bs]", "[ht]", "[lf]", "[vt]", "[ff]", "[cr]", "[so]", "[si]",
+ "[dle]", "[dc1]", "[dc2]", "[dc3]", "[dc4]", "[nak]", "[syn]", "[etb]",
+ "[can]", "[em]", "[sub]", "[esc]", "[fs]", "[gs]", "[rs]", "[us]",
+ -- plus space
+ "[space]", -- 0x20
+}
+
string.tracedchars = tracedchars
strings.tracers = tracedchars
diff --git a/src/fontloader/runtime/fontloader-reference.lua b/src/fontloader/runtime/fontloader-reference.lua
index d8095a2..a2a598b 100644
--- a/src/fontloader/runtime/fontloader-reference.lua
+++ b/src/fontloader/runtime/fontloader-reference.lua
@@ -1,6 +1,6 @@
-- merged file : luatex-fonts-merged.lua
-- parent file : luatex-fonts.lua
--- merge date : 05/24/15 12:42:55
+-- merge date : 10/09/15 21:28:28
do -- begin closure to overcome local limits and interference
@@ -57,21 +57,33 @@ if not package.loaders then
end
local print,select,tostring=print,select,tostring
local inspectors={}
-function setinspector(inspector)
- inspectors[#inspectors+1]=inspector
+function setinspector(kind,inspector)
+ inspectors[kind]=inspector
end
function inspect(...)
for s=1,select("#",...) do
local value=select(s,...)
- local done=false
- for i=1,#inspectors do
- done=inspectors[i](value)
- if done then
- break
+ if value==nil then
+ print("nil")
+ else
+ local done=false
+ local kind=type(value)
+ local inspector=inspectors[kind]
+ if inspector then
+ done=inspector(value)
+ if done then
+ break
+ end
+ end
+ for kind,inspector in next,inspectors do
+ done=inspector(value)
+ if done then
+ break
+ end
+ end
+ if not done then
+ print(tostring(value))
end
- end
- if not done then
- print(tostring(value))
end
end
end
@@ -112,7 +124,7 @@ local floor=math.floor
local P,R,S,V,Ct,C,Cs,Cc,Cp,Cmt=lpeg.P,lpeg.R,lpeg.S,lpeg.V,lpeg.Ct,lpeg.C,lpeg.Cs,lpeg.Cc,lpeg.Cp,lpeg.Cmt
local lpegtype,lpegmatch,lpegprint=lpeg.type,lpeg.match,lpeg.print
if setinspector then
- setinspector(function(v) if lpegtype(v) then lpegprint(v) return true end end)
+ setinspector("lpeg",function(v) if lpegtype(v) then lpegprint(v) return true end end)
end
lpeg.patterns=lpeg.patterns or {}
local patterns=lpeg.patterns
@@ -995,9 +1007,10 @@ function string.valid(str,default)
return (type(str)=="string" and str~="" and str) or default or nil
end
string.itself=function(s) return s end
-local pattern=Ct(C(1)^0)
-function string.totable(str)
- return lpegmatch(pattern,str)
+local pattern_c=Ct(C(1)^0)
+local pattern_b=Ct((C(1)/byte)^0)
+function string.totable(str,bytes)
+ return lpegmatch(bytes and pattern_b or pattern_c,str)
end
local replacer=lpeg.replacer("@","%%")
function string.tformat(fmt,...)
@@ -1884,7 +1897,7 @@ function table.print(t,...)
end
end
if setinspector then
- setinspector(function(v) if type(v)=="table" then serialize(print,v,"table") return true end end)
+ setinspector("table",function(v) if type(v)=="table" then serialize(print,v,"table") return true end end)
end
function table.sub(t,i,j)
return { unpack(t,i,j) }
@@ -2937,7 +2950,13 @@ function string.autosingle(s,sep)
end
return ("'"..tostring(s).."'")
end
-local tracedchars={}
+local tracedchars={ [0]=
+ "[null]","[soh]","[stx]","[etx]","[eot]","[enq]","[ack]","[bel]",
+ "[bs]","[ht]","[lf]","[vt]","[ff]","[cr]","[so]","[si]",
+ "[dle]","[dc1]","[dc2]","[dc3]","[dc4]","[nak]","[syn]","[etb]",
+ "[can]","[em]","[sub]","[esc]","[fs]","[gs]","[rs]","[us]",
+ "[space]",
+}
string.tracedchars=tracedchars
strings.tracers=tracedchars
function string.tracedchar(b)
@@ -3886,6 +3905,8 @@ local nodecodes={} for k,v in next,node.types () do nodecodes[string.gsub(v,"_"
local whatcodes={} for k,v in next,node.whatsits() do whatcodes[string.gsub(v,"_","")]=k end
local glyphcodes={ [0]="character","glyph","ligature","ghost","left","right" }
local disccodes={ [0]="discretionary","explicit","automatic","regular","first","second" }
+for i=0,#glyphcodes do glyphcodes[glyphcodes[i]]=i end
+for i=0,#disccodes do disccodes [disccodes [i]]=i end
nodes.nodecodes=nodecodes
nodes.whatcodes=whatcodes
nodes.whatsitcodes=whatcodes
@@ -4361,6 +4382,7 @@ function constructors.scale(tfmdata,specification)
local hdelta=delta
local vdelta=delta
target.designsize=parameters.designsize
+ target.units=units
target.units_per_em=units
local direction=properties.direction or tfmdata.direction or 0
target.direction=direction
@@ -4472,21 +4494,28 @@ function constructors.scale(tfmdata,specification)
target.nomath=true
target.mathparameters=nil
end
- local italickey="italic"
- local useitalics=true
if hasmath then
- autoitalicamount=false
- elseif properties.textitalics then
- italickey="italic_correction"
- useitalics=false
- if properties.delaytextitalics then
+ local mathitalics=properties.mathitalics
+ if mathitalics==false then
+ if trace_defining then
+ report_defining("%s italics %s for font %a, fullname %a, filename %a","math",hasitalics and "ignored" or "disabled",name,fullname,filename)
+ end
+ hasitalics=false
+ autoitalicamount=false
+ end
+ else
+ local textitalics=properties.textitalics
+ if textitalics==false then
+ if trace_defining then
+ report_defining("%s italics %s for font %a, fullname %a, filename %a","text",hasitalics and "ignored" or "disabled",name,fullname,filename)
+ end
+ hasitalics=false
autoitalicamount=false
end
end
if trace_defining then
report_defining("defining tfm, name %a, fullname %a, filename %a, hscale %a, vscale %a, math %a, italics %a",
- name,fullname,filename,hdelta,vdelta,
- hasmath and "enabled" or "disabled",useitalics and "enabled" or "disabled")
+ name,fullname,filename,hdelta,vdelta,hasmath and "enabled" or "disabled",hasitalics and "enabled" or "disabled")
end
constructors.beforecopyingcharacters(target,tfmdata)
local sharedkerns={}
@@ -4584,22 +4613,6 @@ function constructors.scale(tfmdata,specification)
chr.right_protruding=protrusionfactor*width*vr
end
end
- if autoitalicamount then
- local vi=description.italic
- if not vi then
- local vi=description.boundingbox[3]-description.width+autoitalicamount
- if vi>0 then
- chr[italickey]=vi*hdelta
- end
- elseif vi~=0 then
- chr[italickey]=vi*hdelta
- end
- elseif hasitalics then
- local vi=description.italic
- if vi and vi~=0 then
- chr[italickey]=vi*hdelta
- end
- end
if hasmath then
local vn=character.next
if vn then
@@ -4637,7 +4650,7 @@ function constructors.scale(tfmdata,specification)
end
end
end
- local va=character.top_accent
+ local va=character.accent
if va then
chr.top_accent=vdelta*va
end
@@ -4660,6 +4673,27 @@ function constructors.scale(tfmdata,specification)
chr.mathkern=kerns
end
end
+ if hasitalics then
+ local vi=character.italic
+ if vi and vi~=0 then
+ chr.italic=vi*hdelta
+ end
+ end
+ elseif autoitalicamount then
+ local vi=description.italic
+ if not vi then
+ local vi=description.boundingbox[3]-description.width+autoitalicamount
+ if vi>0 then
+ chr.italic=vi*hdelta
+ end
+ elseif vi~=0 then
+ chr.italic=vi*hdelta
+ end
+ elseif hasitalics then
+ local vi=character.italic
+ if vi and vi~=0 then
+ chr.italic=vi*hdelta
+ end
end
if haskerns then
local vk=character.kerns
@@ -4722,6 +4756,7 @@ function constructors.scale(tfmdata,specification)
end
targetcharacters[unicode]=chr
end
+ properties.setitalics=hasitalics
constructors.aftercopyingcharacters(target,tfmdata)
constructors.trytosharefont(target,tfmdata)
return target
@@ -4762,11 +4797,20 @@ function constructors.finalize(tfmdata)
if not parameters.slantfactor then
parameters.slantfactor=tfmdata.slant or 0
end
- if not parameters.designsize then
- parameters.designsize=tfmdata.designsize or (factors.pt*10)
+ local designsize=parameters.designsize
+ if designsize then
+ parameters.minsize=tfmdata.minsize or designsize
+ parameters.maxsize=tfmdata.maxsize or designsize
+ else
+ designsize=factors.pt*10
+ parameters.designsize=designsize
+ parameters.minsize=designsize
+ parameters.maxsize=designsize
end
+ parameters.minsize=tfmdata.minsize or parameters.designsize
+ parameters.maxsize=tfmdata.maxsize or parameters.designsize
if not parameters.units then
- parameters.units=tfmdata.units_per_em or 1000
+ parameters.units=tfmdata.units or tfmdata.units_per_em or 1000
end
if not tfmdata.descriptions then
local descriptions={}
@@ -4829,6 +4873,7 @@ function constructors.finalize(tfmdata)
tfmdata.auto_protrude=nil
tfmdata.extend=nil
tfmdata.slant=nil
+ tfmdata.units=nil
tfmdata.units_per_em=nil
tfmdata.cache=nil
properties.finalized=true
@@ -5393,24 +5438,13 @@ local fonts=fonts or {}
local mappings=fonts.mappings or {}
fonts.mappings=mappings
local allocate=utilities.storage.allocate
-local function loadlumtable(filename)
- local lumname=file.replacesuffix(file.basename(filename),"lum")
- local lumfile=resolvers.findfile(lumname,"map") or ""
- if lumfile~="" and lfs.isfile(lumfile) then
- if trace_loading or trace_mapping then
- report_fonts("loading map table %a",lumfile)
- end
- lumunic=dofile(lumfile)
- return lumunic,lumfile
- end
-end
local hex=R("AF","09")
-local hexfour=(hex*hex*hex*hex)/function(s) return tonumber(s,16) end
-local hexsix=(hex*hex*hex*hex*hex*hex)/function(s) return tonumber(s,16) end
+local hexfour=(hex*hex*hex^-2)/function(s) return tonumber(s,16) end
+local hexsix=(hex*hex*hex^-4)/function(s) return tonumber(s,16) end
local dec=(R("09")^1)/tonumber
local period=P(".")
-local unicode=P("uni")*(hexfour*(period+P(-1))*Cc(false)+Ct(hexfour^1)*Cc(true))
-local ucode=P("u")*(hexsix*(period+P(-1))*Cc(false)+Ct(hexsix^1)*Cc(true))
+local unicode=(P("uni")+P("UNI"))*(hexfour*(period+P(-1))*Cc(false)+Ct(hexfour^1)*Cc(true))
+local ucode=(P("u")+P("U") )*(hexsix*(period+P(-1))*Cc(false)+Ct(hexsix^1)*Cc(true))
local index=P("index")*dec*Cc(false)
local parser=unicode+ucode+index
local parsers={}
@@ -5485,7 +5519,6 @@ local function fromunicode16(str)
return (tonumber(l,16))*0x400+tonumber(r,16)-0xDC00
end
end
-mappings.loadlumtable=loadlumtable
mappings.makenameparser=makenameparser
mappings.tounicode=tounicode
mappings.tounicode16=tounicode16
@@ -5516,244 +5549,162 @@ for k,v in next,overloads do
end
end
mappings.overloads=overloads
-function mappings.addtounicode(data,filename)
+function mappings.addtounicode(data,filename,checklookups)
local resources=data.resources
- local properties=data.properties
- local descriptions=data.descriptions
local unicodes=resources.unicodes
- local lookuptypes=resources.lookuptypes
if not unicodes then
return
end
+ local properties=data.properties
+ local descriptions=data.descriptions
unicodes['space']=unicodes['space'] or 32
unicodes['hyphen']=unicodes['hyphen'] or 45
unicodes['zwj']=unicodes['zwj'] or 0x200D
unicodes['zwnj']=unicodes['zwnj'] or 0x200C
- local private=fonts.constructors.privateoffset
- local unicodevector=fonts.encodings.agl.unicodes
+ local private=fonts.constructors and fonts.constructors.privateoffset or 0xF0000
+ local unicodevector=fonts.encodings.agl.unicodes or {}
+ local contextvector=fonts.encodings.agl.ctxcodes or {}
local missing={}
- local lumunic,uparser,oparser
- local cidinfo,cidnames,cidcodes,usedmap
- cidinfo=properties.cidinfo
- usedmap=cidinfo and fonts.cid.getmap(cidinfo)
+ local nofmissing=0
+ local oparser=nil
+ local cidnames=nil
+ local cidcodes=nil
+ local cidinfo=properties.cidinfo
+ local usedmap=cidinfo and fonts.cid.getmap(cidinfo)
+ local uparser=makenameparser()
if usedmap then
- oparser=usedmap and makenameparser(cidinfo.ordering)
- cidnames=usedmap.names
- cidcodes=usedmap.unicodes
+ oparser=usedmap and makenameparser(cidinfo.ordering)
+ cidnames=usedmap.names
+ cidcodes=usedmap.unicodes
end
- uparser=makenameparser()
- local ns,nl=0,0
+ local ns=0
+ local nl=0
for unic,glyph in next,descriptions do
- local index=glyph.index
local name=glyph.name
- local r=overloads[name]
- if r then
- glyph.unicode=r.unicode
- elseif unic==-1 or unic>=private or (unic>=0xE000 and unic<=0xF8FF) or unic==0xFFFE or unic==0xFFFF then
- local unicode=lumunic and lumunic[name] or unicodevector[name]
- if unicode then
- glyph.unicode=unicode
- ns=ns+1
- end
- if (not unicode) and usedmap then
- local foundindex=lpegmatch(oparser,name)
- if foundindex then
- unicode=cidcodes[foundindex]
- if unicode then
- glyph.unicode=unicode
- ns=ns+1
- else
- local reference=cidnames[foundindex]
- if reference then
- local foundindex=lpegmatch(oparser,reference)
- if foundindex then
- unicode=cidcodes[foundindex]
- if unicode then
- glyph.unicode=unicode
- ns=ns+1
- end
- end
- if not unicode or unicode=="" then
- local foundcodes,multiple=lpegmatch(uparser,reference)
- if foundcodes then
- glyph.unicode=foundcodes
- if multiple then
- nl=nl+1
- unicode=true
- else
+ if name then
+ local index=glyph.index
+ local r=overloads[name]
+ if r then
+ glyph.unicode=r.unicode
+ elseif not unic or unic==-1 or unic>=private or (unic>=0xE000 and unic<=0xF8FF) or unic==0xFFFE or unic==0xFFFF then
+ local unicode=unicodevector[name] or contextvector[name]
+ if unicode then
+ glyph.unicode=unicode
+ ns=ns+1
+ end
+ if (not unicode) and usedmap then
+ local foundindex=lpegmatch(oparser,name)
+ if foundindex then
+ unicode=cidcodes[foundindex]
+ if unicode then
+ glyph.unicode=unicode
+ ns=ns+1
+ else
+ local reference=cidnames[foundindex]
+ if reference then
+ local foundindex=lpegmatch(oparser,reference)
+ if foundindex then
+ unicode=cidcodes[foundindex]
+ if unicode then
+ glyph.unicode=unicode
ns=ns+1
- unicode=foundcodes
+ end
+ end
+ if not unicode or unicode=="" then
+ local foundcodes,multiple=lpegmatch(uparser,reference)
+ if foundcodes then
+ glyph.unicode=foundcodes
+ if multiple then
+ nl=nl+1
+ unicode=true
+ else
+ ns=ns+1
+ unicode=foundcodes
+ end
end
end
end
end
end
end
- end
- if not unicode or unicode=="" then
- local split=lpegmatch(namesplitter,name)
- local nsplit=split and #split or 0
- local t,n={},0
- unicode=true
- for l=1,nsplit do
- local base=split[l]
- local u=unicodes[base] or unicodevector[base]
- if not u then
- break
- elseif type(u)=="table" then
- if u[1]>=private then
- unicode=false
- break
- end
- n=n+1
- t[n]=u[1]
- else
- if u>=private then
- unicode=false
- break
+ if not unicode or unicode=="" then
+ local split=lpegmatch(namesplitter,name)
+ local nsplit=split and #split or 0
+ if nsplit==0 then
+ elseif nsplit==1 then
+ local base=split[1]
+ local u=unicodes[base] or unicodevector[base] or contextvector[name]
+ if not u then
+ elseif type(u)=="table" then
+ if u[1]<private then
+ unicode=u
+ glyph.unicode=unicode
+ end
+ elseif u<private then
+ unicode=u
+ glyph.unicode=unicode
end
- n=n+1
- t[n]=u
- end
- end
- if n==0 then
- elseif n==1 then
- glyph.unicode=t[1]
- else
- glyph.unicode=t
- end
- nl=nl+1
- end
- if not unicode or unicode=="" then
- local foundcodes,multiple=lpegmatch(uparser,name)
- if foundcodes then
- glyph.unicode=foundcodes
- if multiple then
- nl=nl+1
- unicode=true
else
- ns=ns+1
- unicode=foundcodes
- end
- end
- end
- local r=overloads[unicode]
- if r then
- unicode=r.unicode
- glyph.unicode=unicode
- end
- if not unicode then
- missing[name]=true
- end
- end
- end
- if next(missing) then
- local guess={}
- local function check(gname,code,unicode)
- local description=descriptions[code]
- local variant=description.name
- if variant==gname then
- return
- end
- local unic=unicodes[variant]
- if unic==-1 or unic>=private or (unic>=0xE000 and unic<=0xF8FF) or unic==0xFFFE or unic==0xFFFF then
- else
- return
- end
- if descriptions[code].unicode then
- return
- end
- local g=guess[variant]
- if g then
- g[gname]=unicode
- else
- guess[variant]={ [gname]=unicode }
- end
- end
- for unicode,description in next,descriptions do
- local slookups=description.slookups
- if slookups then
- local gname=description.name
- for tag,data in next,slookups do
- local lookuptype=lookuptypes[tag]
- if lookuptype=="alternate" then
- for i=1,#data do
- check(gname,data[i],unicode)
- end
- elseif lookuptype=="substitution" then
- check(gname,data,unicode)
- end
- end
- end
- local mlookups=description.mlookups
- if mlookups then
- local gname=description.name
- for tag,list in next,mlookups do
- local lookuptype=lookuptypes[tag]
- if lookuptype=="alternate" then
- for i=1,#list do
- local data=list[i]
- for i=1,#data do
- check(gname,data[i],unicode)
+ local t,n={},0
+ for l=1,nsplit do
+ local base=split[l]
+ local u=unicodes[base] or unicodevector[base] or contextvector[name]
+ if not u then
+ break
+ elseif type(u)=="table" then
+ if u[1]>=private then
+ break
+ end
+ n=n+1
+ t[n]=u[1]
+ else
+ if u>=private then
+ break
+ end
+ n=n+1
+ t[n]=u
end
end
- elseif lookuptype=="substitution" then
- for i=1,#list do
- check(gname,list[i],unicode)
+ if n>0 then
+ if n==1 then
+ unicode=t[1]
+ else
+ unicode=t
+ end
+ glyph.unicode=unicode
end
end
- end
- end
- end
- local done=true
- while done do
- done=false
- for k,v in next,guess do
- if type(v)~="number" then
- for kk,vv in next,v do
- if vv==-1 or vv>=private or (vv>=0xE000 and vv<=0xF8FF) or vv==0xFFFE or vv==0xFFFF then
- local uu=guess[kk]
- if type(uu)=="number" then
- guess[k]=uu
- done=true
- end
+ nl=nl+1
+ end
+ if not unicode or unicode=="" then
+ local foundcodes,multiple=lpegmatch(uparser,name)
+ if foundcodes then
+ glyph.unicode=foundcodes
+ if multiple then
+ nl=nl+1
+ unicode=true
else
- guess[k]=vv
- done=true
+ ns=ns+1
+ unicode=foundcodes
end
end
end
- end
- end
- local orphans=0
- local guessed=0
- for k,v in next,guess do
- if type(v)=="number" then
- descriptions[unicodes[k]].unicode=descriptions[v].unicode or v
- guessed=guessed+1
- else
- local t=nil
- local l=lower(k)
- local u=unicodes[l]
- if not u then
- orphans=orphans+1
- elseif u==-1 or u>=private or (u>=0xE000 and u<=0xF8FF) or u==0xFFFE or u==0xFFFF then
- local unicode=descriptions[u].unicode
- if unicode then
- descriptions[unicodes[k]].unicode=unicode
- guessed=guessed+1
- else
- orphans=orphans+1
- end
- else
- orphans=orphans+1
+ local r=overloads[unicode]
+ if r then
+ unicode=r.unicode
+ glyph.unicode=unicode
+ end
+ if not unicode then
+ missing[unic]=true
+ nofmissing=nofmissing+1
end
end
- end
- if trace_loading and orphans>0 or guessed>0 then
- report_fonts("%s glyphs with no related unicode, %s guessed, %s orphans",guessed+orphans,guessed,orphans)
+ else
end
end
+ if type(checklookups)=="function" then
+ checklookups(data,missing,nofmissing)
+ end
if trace_mapping then
for unic,glyph in table.sortedhash(descriptions) do
local name=glyph.name
@@ -5881,6 +5832,7 @@ local readers=fonts.readers
local constructors=fonts.constructors
local encodings=fonts.encodings
local tfm=constructors.newhandler("tfm")
+tfm.version=1.000
local tfmfeatures=constructors.newfeatures("tfm")
local registertfmfeature=tfmfeatures.register
constructors.resolvevirtualtoo=false
@@ -6067,7 +6019,7 @@ local keys={}
function keys.FontName (data,line) data.metadata.fontname=strip (line)
data.metadata.fullname=strip (line) end
function keys.ItalicAngle (data,line) data.metadata.italicangle=tonumber (line) end
-function keys.IsFixedPitch(data,line) data.metadata.isfixedpitch=toboolean(line,true) end
+function keys.IsFixedPitch(data,line) data.metadata.monospaced=toboolean(line,true) end
function keys.CharWidth (data,line) data.metadata.charwidth=tonumber (line) end
function keys.XHeight (data,line) data.metadata.xheight=tonumber (line) end
function keys.Descender (data,line) data.metadata.descender=tonumber (line) end
@@ -6489,7 +6441,7 @@ local function copytotfm(data)
local emdash=0x2014
local spacer="space"
local spaceunits=500
- local monospaced=metadata.isfixedpitch
+ local monospaced=metadata.monospaced
local charwidth=metadata.charwidth
local italicangle=metadata.italicangle
local charxheight=metadata.xheight and metadata.xheight>0 and metadata.xheight
@@ -7144,12 +7096,10 @@ if not modules then modules={} end modules ['font-otf']={
license="see context related readme files"
}
local utfbyte=utf.byte
-local format,gmatch,gsub,find,match,lower,strip=string.format,string.gmatch,string.gsub,string.find,string.match,string.lower,string.strip
+local gmatch,gsub,find,match,lower,strip=string.gmatch,string.gsub,string.find,string.match,string.lower,string.strip
local type,next,tonumber,tostring=type,next,tonumber,tostring
local abs=math.abs
-local insert=table.insert
-local lpegmatch=lpeg.match
-local reversed,concat,remove,sortedkeys=table.reversed,table.concat,table.remove,table.sortedkeys
+local reversed,concat,insert,remove,sortedkeys=table.reversed,table.concat,table.insert,table.remove,table.sortedkeys
local ioflush=io.flush
local fastcopy,tohash,derivetable=table.fastcopy,table.tohash,table.derive
local formatters=string.formatters
@@ -7176,7 +7126,7 @@ local report_otf=logs.reporter("fonts","otf loading")
local fonts=fonts
local otf=fonts.handlers.otf
otf.glists={ "gsub","gpos" }
-otf.version=2.812
+otf.version=2.819
otf.cache=containers.define("fonts","otf",otf.version,true)
local hashes=fonts.hashes
local definers=fonts.definers
@@ -7353,10 +7303,10 @@ local ordered_enhancers={
"reorganize subtables",
"check glyphs",
"check metadata",
- "check extra features",
"prepare tounicode",
"check encoding",
"add duplicates",
+ "expand lookups",
"cleanup tables",
"compact lookups",
"purge names",
@@ -7493,6 +7443,7 @@ function otf.load(filename,sub,featurefile)
end
end
if reload then
+ starttiming("fontloader")
report_otf("loading %a, hash %a",filename,hash)
local fontdata,messages
if sub then
@@ -7526,6 +7477,7 @@ function otf.load(filename,sub,featurefile)
data={
size=size,
time=time,
+ subfont=sub,
format=otf_format(filename),
featuredata=featurefiles,
resources={
@@ -7553,7 +7505,6 @@ function otf.load(filename,sub,featurefile)
tounicodetable=Ct(splitter),
},
}
- starttiming(data)
report_otf("file size: %s",size)
enhancers.apply(data,filename,fontdata)
local packtime={}
@@ -7570,10 +7521,10 @@ function otf.load(filename,sub,featurefile)
if cleanup>1 then
collectgarbage("collect")
end
- stoptiming(data)
+ stoptiming("fontloader")
if elapsedtime then
- report_otf("preprocessing and caching time %s, packtime %s",
- elapsedtime(data),packdata and elapsedtime(packtime) or 0)
+ report_otf("loading, optimizing, packing and caching time %s, pack time %s",
+ elapsedtime("fontloader"),packdata and elapsedtime(packtime) or 0)
end
close_font(fontdata)
if cleanup>3 then
@@ -7584,6 +7535,7 @@ function otf.load(filename,sub,featurefile)
collectgarbage("collect")
end
else
+ stoptiming("fontloader")
data=nil
report_otf("loading failed due to read error")
end
@@ -7625,6 +7577,7 @@ function otf.load(filename,sub,featurefile)
applyruntimefixes(filename,data)
end
enhance("add dimensions",data,filename,nil,false)
+enhance("check extra features",data,filename)
if trace_sequences then
showfeatureorder(data,filename)
end
@@ -7785,7 +7738,7 @@ actions["prepare glyphs"]=function(data,filename,raw)
end
if not unicode or unicode==-1 then
if not name then
- name=format("u%06X.ctx",private)
+ name=formatters["u%06X.ctx"](private)
end
unicode=private
unicodes[name]=private
@@ -7796,7 +7749,7 @@ actions["prepare glyphs"]=function(data,filename,raw)
nofnames=nofnames+1
else
if not name then
- name=format("u%06X.ctx",unicode)
+ name=formatters["u%06X.ctx"](unicode)
end
unicodes[name]=unicode
nofunicodes=nofunicodes+1
@@ -7810,25 +7763,25 @@ actions["prepare glyphs"]=function(data,filename,raw)
glyph=glyph,
}
descriptions[unicode]=description
-local altuni=glyph.altuni
-if altuni then
- for i=1,#altuni do
- local a=altuni[i]
- local u=a.unicode
- if u~=unicode then
- local v=a.variant
- if v then
- local vv=variants[v]
- if vv then
- vv[u]=unicode
- else
- vv={ [u]=unicode }
- variants[v]=vv
- end
- end
- end
- end
-end
+ local altuni=glyph.altuni
+ if altuni then
+ for i=1,#altuni do
+ local a=altuni[i]
+ local u=a.unicode
+ if u~=unicode then
+ local v=a.variant
+ if v then
+ local vv=variants[v]
+ if vv then
+ vv[u]=unicode
+ else
+ vv={ [u]=unicode }
+ variants[v]=vv
+ end
+ end
+ end
+ end
+ end
end
end
else
@@ -8014,7 +7967,7 @@ actions["add duplicates"]=function(data,filename,raw)
end
if u>0 then
local duplicate=table.copy(description)
- duplicate.comment=format("copy of U+%05X",unicode)
+ duplicate.comment=formatters["copy of %U"](unicode)
descriptions[u]=duplicate
if trace_loading then
report_otf("duplicating %U to %U with index %H (%s kerns)",unicode,u,description.index,n)
@@ -8035,7 +7988,7 @@ actions["analyze glyphs"]=function(data,filename,raw)
local marks={}
for unicode,description in next,descriptions do
local glyph=description.glyph
- local italic=glyph.italic_correction
+ local italic=glyph.italic_correction
if not italic then
elseif italic==0 then
else
@@ -8096,7 +8049,8 @@ end
actions["reorganize features"]=function(data,filename,raw)
local features={}
data.resources.features=features
- for k,what in next,otf.glists do
+ for k=1,#otf.glists do
+ local what=otf.glists[k]
local dw=raw[what]
if dw then
local f={}
@@ -8178,8 +8132,9 @@ actions["reorganize subtables"]=function(data,filename,raw)
local lookups={}
local chainedfeatures={}
resources.sequences=sequences
- resources.lookups=lookups
- for _,what in next,otf.glists do
+ resources.lookups=lookups
+ for k=1,#otf.glists do
+ local what=otf.glists[k]
local dw=raw[what]
if dw then
for k=1,#dw do
@@ -8353,12 +8308,15 @@ local function r_uncover(splitter,cache,cover,replacements)
end
actions["reorganize lookups"]=function(data,filename,raw)
if data.lookups then
- local splitter=data.helpers.tounicodetable
+ local helpers=data.helpers
+ local duplicates=data.resources.duplicates
+ local splitter=helpers.tounicodetable
local t_u_cache={}
local s_u_cache=t_u_cache
local t_h_cache={}
local s_h_cache=t_h_cache
local r_u_cache={}
+ helpers.matchcache=t_h_cache
for _,lookup in next,data.lookups do
local rules=lookup.rules
if rules then
@@ -8504,6 +8462,44 @@ actions["reorganize lookups"]=function(data,filename,raw)
end
end
end
+actions["expand lookups"]=function(data,filename,raw)
+ if data.lookups then
+ local cache=data.helpers.matchcache
+ if cache then
+ local duplicates=data.resources.duplicates
+ for key,hash in next,cache do
+ local done=nil
+ for key in next,hash do
+ local unicode=duplicates[key]
+ if not unicode then
+ elseif type(unicode)=="table" then
+ for i=1,#unicode do
+ local u=unicode[i]
+ if hash[u] then
+ elseif done then
+ done[u]=key
+ else
+ done={ [u]=key }
+ end
+ end
+ else
+ if hash[unicode] then
+ elseif done then
+ done[unicode]=key
+ else
+ done={ [unicode]=key }
+ end
+ end
+ end
+ if done then
+ for u in next,done do
+ hash[u]=true
+ end
+ end
+ end
+ end
+ end
+end
local function check_variants(unicode,the_variants,splitter,unicodes)
local variants=the_variants.variants
if variants then
@@ -8544,11 +8540,11 @@ local function check_variants(unicode,the_variants,splitter,unicodes)
parts=nil
end
end
- local italic_correction=the_variants.italic_correction
- if italic_correction and italic_correction==0 then
- italic_correction=nil
+ local italic=the_variants.italic
+ if italic and italic==0 then
+ italic=nil
end
- return variants,parts,italic_correction
+ return variants,parts,italic
end
actions["analyze math"]=function(data,filename,raw)
if raw.math then
@@ -8558,13 +8554,14 @@ actions["analyze math"]=function(data,filename,raw)
for unicode,description in next,data.descriptions do
local glyph=description.glyph
local mathkerns=glyph.mathkern
- local horiz_variants=glyph.horiz_variants
- local vert_variants=glyph.vert_variants
- local top_accent=glyph.top_accent
- if mathkerns or horiz_variants or vert_variants or top_accent then
+ local hvariants=glyph.horiz_variants
+ local vvariants=glyph.vert_variants
+ local accent=glyph.top_accent
+ local italic=glyph.italic_correction
+ if mathkerns or hvariants or vvariants or accent or italic then
local math={}
- if top_accent then
- math.top_accent=top_accent
+ if accent then
+ math.accent=accent
end
if mathkerns then
for k,v in next,mathkerns do
@@ -8580,15 +8577,14 @@ actions["analyze math"]=function(data,filename,raw)
end
math.kerns=mathkerns
end
- if horiz_variants then
- math.horiz_variants,math.horiz_parts,math.horiz_italic_correction=check_variants(unicode,horiz_variants,splitter,unicodes)
+ if hvariants then
+ math.hvariants,math.hparts,math.hitalic=check_variants(unicode,hvariants,splitter,unicodes)
end
- if vert_variants then
- math.vert_variants,math.vert_parts,math.vert_italic_correction=check_variants(unicode,vert_variants,splitter,unicodes)
+ if vvariants then
+ math.vvariants,math.vparts,math.vitalic=check_variants(unicode,vvariants,splitter,unicodes)
end
- local italic_correction=description.italic
- if italic_correction and italic_correction~=0 then
- math.italic_correction=italic_correction
+ if italic and italic~=0 then
+ math.italic=italic
end
description.math=math
end
@@ -8745,7 +8741,7 @@ actions["merge kern classes"]=function(data,filename,raw)
report_otf("%s kern overloads ignored",ignored)
end
if blocked>0 then
- report_otf("%s succesive kerns blocked",blocked)
+ report_otf("%s successive kerns blocked",blocked)
end
end
end
@@ -8774,16 +8770,18 @@ actions["check metadata"]=function(data,filename,raw)
ttftables[i].data="deleted"
end
end
+ local names=raw.names
if metadata.validation_state and table.contains(metadata.validation_state,"bad_ps_fontname") then
local function valid(what)
- local names=raw.names
- for i=1,#names do
- local list=names[i]
- local names=list.names
- if names then
- local name=names[what]
- if name and valid_ps_name(name) then
- return name
+ if names then
+ for i=1,#names do
+ local list=names[i]
+ local names=list.names
+ if names then
+ local name=names[what]
+ if name and valid_ps_name(name) then
+ return name
+ end
end
end
end
@@ -8806,6 +8804,28 @@ actions["check metadata"]=function(data,filename,raw)
check("fontname")
check("fullname")
end
+ if names then
+ local psname=metadata.psname
+ if not psname or psname=="" then
+ for i=1,#names do
+ local name=names[i]
+ if lower(name.lang)=="english (us)" then
+ local specification=name.names
+ if specification then
+ local postscriptname=specification.postscriptname
+ if postscriptname then
+ psname=postscriptname
+ end
+ end
+ end
+ break
+ end
+ end
+ if psname~=metadata.fontname then
+ report_otf("fontname %a, fullname %a, psname %a",metadata.fontname,metadata.fullname,psname)
+ end
+ metadata.psname=psname
+ end
end
actions["cleanup tables"]=function(data,filename,raw)
local duplicates=data.resources.duplicates
@@ -8901,7 +8921,7 @@ actions["reorganize glyph lookups"]=function(data,filename,raw)
end
end
local zero={ 0,0 }
-actions["reorganize glyph anchors"]=function(data,filename,raw)
+actions["reorganize glyph anchors"]=function(data,filename,raw)
local descriptions=data.descriptions
for unicode,description in next,descriptions do
local anchors=description.glyph.anchors
@@ -9103,9 +9123,13 @@ local function copytotfm(data,cache_id)
local spaceunits=500
local spacer="space"
local designsize=metadata.designsize or metadata.design_size or 100
+ local minsize=metadata.minsize or metadata.design_range_bottom or designsize
+ local maxsize=metadata.maxsize or metadata.design_range_top or designsize
local mathspecs=metadata.math
if designsize==0 then
designsize=100
+ minsize=100
+ maxsize=100
end
if mathspecs then
for name,value in next,mathspecs do
@@ -9120,8 +9144,9 @@ local function copytotfm(data,cache_id)
local d=descriptions[unicode]
local m=d.math
if m then
- local variants=m.horiz_variants
- local parts=m.horiz_parts
+ local italic=m.italic
+ local variants=m.hvariants
+ local parts=m.hparts
if variants then
local c=character
for i=1,#variants do
@@ -9132,9 +9157,10 @@ local function copytotfm(data,cache_id)
c.horiz_variants=parts
elseif parts then
character.horiz_variants=parts
+ italic=m.hitalic
end
- local variants=m.vert_variants
- local parts=m.vert_parts
+ local variants=m.vvariants
+ local parts=m.vparts
if variants then
local c=character
for i=1,#variants do
@@ -9145,14 +9171,14 @@ local function copytotfm(data,cache_id)
c.vert_variants=parts
elseif parts then
character.vert_variants=parts
+ italic=m.vitalic
end
- local italic_correction=m.vert_italic_correction
- if italic_correction then
- character.vert_italic_correction=italic_correction
+ if italic and italic~=0 then
+ character.italic=italic
end
- local top_accent=m.top_accent
- if top_accent then
- character.top_accent=top_accent
+ local accent=m.accent
+ if accent then
+ character.accent=accent
end
local kerns=m.kerns
if kerns then
@@ -9164,14 +9190,14 @@ local function copytotfm(data,cache_id)
local filename=constructors.checkedfilename(resources)
local fontname=metadata.fontname
local fullname=metadata.fullname or fontname
- local psname=fontname or fullname
- local units=metadata.units_per_em or 1000
+ local psname=metadata.psname or fontname or fullname
+ local units=metadata.units or metadata.units_per_em or 1000
if units==0 then
units=1000
- metadata.units_per_em=1000
+ metadata.units=1000
report_otf("changing %a units to %a",0,units)
end
- local monospaced=metadata.isfixedpitch or (pfminfo.panose and pfminfo.panose.proportion=="Monospaced")
+ local monospaced=metadata.monospaced or metadata.isfixedpitch or (pfminfo.panose and pfminfo.panose.proportion=="Monospaced")
local charwidth=pfminfo.avgwidth
local charxheight=pfminfo.os2_xheight and pfminfo.os2_xheight>0 and pfminfo.os2_xheight
local italicangle=metadata.italicangle
@@ -9236,8 +9262,10 @@ local function copytotfm(data,cache_id)
end
end
parameters.designsize=(designsize/10)*65536
- parameters.ascender=abs(metadata.ascent or 0)
- parameters.descender=abs(metadata.descent or 0)
+ parameters.minsize=(minsize/10)*65536
+ parameters.maxsize=(maxsize/10)*65536
+ parameters.ascender=abs(metadata.ascender or metadata.ascent or 0)
+ parameters.descender=abs(metadata.descender or metadata.descent or 0)
parameters.units=units
properties.space=spacer
properties.encodingbytes=2
@@ -9416,6 +9444,99 @@ function otf.scriptandlanguage(tfmdata,attr)
local properties=tfmdata.properties
return properties.script or "dflt",properties.language or "dflt"
end
+local function justset(coverage,unicode,replacement)
+ coverage[unicode]=replacement
+end
+otf.coverup={
+ stepkey="subtables",
+ actions={
+ substitution=justset,
+ alternate=justset,
+ multiple=justset,
+ ligature=justset,
+ kern=justset,
+ },
+ register=function(coverage,lookuptype,format,feature,n,descriptions,resources)
+ local name=formatters["ctx_%s_%s"](feature,n)
+ if lookuptype=="kern" then
+ resources.lookuptypes[name]="position"
+ else
+ resources.lookuptypes[name]=lookuptype
+ end
+ for u,c in next,coverage do
+ local description=descriptions[u]
+ local slookups=description.slookups
+ if slookups then
+ slookups[name]=c
+ else
+ description.slookups={ [name]=c }
+ end
+ end
+ return name
+ end
+}
+local function getgsub(tfmdata,k,kind)
+ local description=tfmdata.descriptions[k]
+ if description then
+ local slookups=description.slookups
+ if slookups then
+ local shared=tfmdata.shared
+ local rawdata=shared and shared.rawdata
+ if rawdata then
+ local lookuptypes=rawdata.resources.lookuptypes
+ if lookuptypes then
+ local properties=tfmdata.properties
+ local validlookups,lookuplist=otf.collectlookups(rawdata,kind,properties.script,properties.language)
+ if validlookups then
+ for l=1,#lookuplist do
+ local lookup=lookuplist[l]
+ local found=slookups[lookup]
+ if found then
+ return found,lookuptypes[lookup]
+ end
+ end
+ end
+ end
+ end
+ end
+ end
+end
+otf.getgsub=getgsub
+function otf.getsubstitution(tfmdata,k,kind,value)
+ local found,kind=getgsub(tfmdata,k,kind)
+ if not found then
+ elseif kind=="substitution" then
+ return found
+ elseif kind=="alternate" then
+ local choice=tonumber(value) or 1
+ return found[choice] or found[1] or k
+ end
+ return k
+end
+otf.getalternate=otf.getsubstitution
+function otf.getmultiple(tfmdata,k,kind)
+ local found,kind=getgsub(tfmdata,k,kind)
+ if found and kind=="multiple" then
+ return found
+ end
+ return { k }
+end
+function otf.getkern(tfmdata,left,right,kind)
+ local kerns=getgsub(tfmdata,left,kind or "kern",true)
+ if kerns then
+ local found=kerns[right]
+ local kind=type(found)
+ if kind=="table" then
+ found=found[1][3]
+ elseif kind~="number" then
+ found=false
+ end
+ if found then
+ return found*tfmdata.parameters.factor
+ end
+ end
+ return 0
+end
end -- closure
@@ -9946,8 +10067,8 @@ local function featuresinitializer(tfmdata,value)
local collectlookups=otf.collectlookups
local rawdata=tfmdata.shared.rawdata
local properties=tfmdata.properties
- local script=properties.script
- local language=properties.language
+ local script=properties.script
+ local language=properties.language
local basesubstitutions=rawdata.resources.features.gsub
local basepositionings=rawdata.resources.features.gpos
if basesubstitutions or basepositionings then
@@ -10125,7 +10246,8 @@ end
function injections.setcursive(start,nxt,factor,rlmode,exit,entry,tfmstart,tfmnext)
local dx=factor*(exit[1]-entry[1])
local dy=-factor*(exit[2]-entry[2])
- local ws,wn=tfmstart.width,tfmnext.width
+ local ws=tfmstart.width
+ local wn=tfmnext.width
nofregisteredcursives=nofregisteredcursives+1
if rlmode<0 then
dx=-(dx+wn)
@@ -10172,7 +10294,10 @@ function injections.setcursive(start,nxt,factor,rlmode,exit,entry,tfmstart,tfmne
return dx,dy,nofregisteredcursives
end
function injections.setpair(current,factor,rlmode,r2lflag,spec,injection)
- local x,y,w,h=factor*spec[1],factor*spec[2],factor*spec[3],factor*spec[4]
+ local x=factor*spec[1]
+ local y=factor*spec[2]
+ local w=factor*spec[3]
+ local h=factor*spec[4]
if x~=0 or w~=0 or y~=0 or h~=0 then
local yoffset=y-h
local leftkern=x
@@ -10182,9 +10307,12 @@ function injections.setpair(current,factor,rlmode,r2lflag,spec,injection)
if rlmode and rlmode<0 then
leftkern,rightkern=rightkern,leftkern
end
+ if not injection then
+ injection="injections"
+ end
local p=rawget(properties,current)
if p then
- local i=rawget(p,"injections")
+ local i=rawget(p,injection)
if i then
if leftkern~=0 then
i.leftkern=(i.leftkern or 0)+leftkern
@@ -10196,19 +10324,19 @@ function injections.setpair(current,factor,rlmode,r2lflag,spec,injection)
i.yoffset=(i.yoffset or 0)+yoffset
end
elseif leftkern~=0 or rightkern~=0 then
- p.injections={
+ p[injection]={
leftkern=leftkern,
rightkern=rightkern,
yoffset=yoffset,
}
else
- p.injections={
+ p[injection]={
yoffset=yoffset,
}
end
elseif leftkern~=0 or rightkern~=0 then
properties[current]={
- injections={
+ [injection]={
leftkern=leftkern,
rightkern=rightkern,
yoffset=yoffset,
@@ -10216,7 +10344,7 @@ function injections.setpair(current,factor,rlmode,r2lflag,spec,injection)
}
else
properties[current]={
- injections={
+ [injection]={
yoffset=yoffset,
},
}
@@ -10255,7 +10383,7 @@ function injections.setkern(current,factor,rlmode,x,injection)
return 0,0
end
end
-function injections.setmark(start,base,factor,rlmode,ba,ma,tfmbase)
+function injections.setmark(start,base,factor,rlmode,ba,ma,tfmbase,mkmk)
local dx,dy=factor*(ba[1]-ma[1]),factor*(ba[2]-ma[2])
nofregisteredmarks=nofregisteredmarks+1
if rlmode>=0 then
@@ -10265,11 +10393,15 @@ function injections.setmark(start,base,factor,rlmode,ba,ma,tfmbase)
if p then
local i=rawget(p,"injections")
if i then
- i.markx=dx
- i.marky=dy
- i.markdir=rlmode or 0
- i.markbase=nofregisteredmarks
- i.markbasenode=base
+ if i.markmark then
+ else
+ i.markx=dx
+ i.marky=dy
+ i.markdir=rlmode or 0
+ i.markbase=nofregisteredmarks
+ i.markbasenode=base
+ i.markmark=mkmk
+ end
else
p.injections={
markx=dx,
@@ -10277,6 +10409,7 @@ function injections.setmark(start,base,factor,rlmode,ba,ma,tfmbase)
markdir=rlmode or 0,
markbase=nofregisteredmarks,
markbasenode=base,
+ markmark=mkmk,
}
end
else
@@ -10287,6 +10420,7 @@ function injections.setmark(start,base,factor,rlmode,ba,ma,tfmbase)
markdir=rlmode or 0,
markbase=nofregisteredmarks,
markbasenode=base,
+ markmark=mkmk,
},
}
end
@@ -10391,27 +10525,33 @@ local function show_result(head)
current=getnext(current)
end
end
-local function collect_glyphs_1(head)
- local glyphs,nofglyphs={},0
- local marks,nofmarks={},0
+local function collect_glyphs(head,offsets)
+ local glyphs,glyphi,nofglyphs={},{},0
+ local marks,marki,nofmarks={},{},0
local nf,tm=nil,nil
- for n in traverse_id(glyph_code,head) do
- if getsubtype(n)<256 then
- local f=getfont(n)
- if f~=nf then
- nf=f
- tm=fontdata[nf].resources.marks
- end
- if tm and tm[getchar(n)] then
- nofmarks=nofmarks+1
- marks[nofmarks]=n
- else
- nofglyphs=nofglyphs+1
- glyphs[nofglyphs]=n
- end
+ local n=head
+ local function identify(n,what)
+ local f=getfont(n)
+ if f~=nf then
+ nf=f
+ tm=fontdata[nf].resources
+ if tm then
+ tm=tm.marks
+ end
+ end
+ if tm and tm[getchar(n)] then
+ nofmarks=nofmarks+1
+ marks[nofmarks]=n
+ marki[nofmarks]="injections"
+ else
+ nofglyphs=nofglyphs+1
+ glyphs[nofglyphs]=n
+ glyphi[nofglyphs]=what
+ end
+ if offsets then
local p=rawget(properties,n)
if p then
- local i=rawget(p,"injections")
+ local i=rawget(p,what)
if i then
local yoffset=i.yoffset
if yoffset and yoffset~=0 then
@@ -10421,36 +10561,47 @@ local function collect_glyphs_1(head)
end
end
end
- return glyphs,nofglyphs,marks,nofmarks
-end
-local function collect_glyphs_2(head)
- local glyphs,nofglyphs={},0
- local marks,nofmarks={},0
- local nf,tm=nil,nil
- for n in traverse_id(glyph_code,head) do
- if getsubtype(n)<256 then
- local f=getfont(n)
- if f~=nf then
- nf=f
- tm=fontdata[nf].resources.marks
- end
- if tm and tm[getchar(n)] then
- nofmarks=nofmarks+1
- marks[nofmarks]=n
- else
- nofglyphs=nofglyphs+1
- glyphs[nofglyphs]=n
- end
+ while n do
+ local id=getid(n)
+ if id==glyph_code then
+ identify(n,"injections")
+ elseif id==disc_code then
+ local d=getfield(n,"pre")
+ if d then
+ for n in traverse_id(glyph_code,d) do
+ if getsubtype(n)<256 then
+ identify(n,"preinjections")
+ end
+ end
+ end
+ local d=getfield(n,"post")
+ if d then
+ for n in traverse_id(glyph_code,d) do
+ if getsubtype(n)<256 then
+ identify(n,"postinjections")
+ end
+ end
+ end
+ local d=getfield(n,"replace")
+ if d then
+ for n in traverse_id(glyph_code,d) do
+ if getsubtype(n)<256 then
+ identify(n,"replaceinjections")
+ end
+ end
+ end
end
+ n=getnext(n)
end
- return glyphs,nofglyphs,marks,nofmarks
+ return glyphs,glyphi,nofglyphs,marks,marki,nofmarks
end
-local function inject_marks(marks,nofmarks)
+local function inject_marks(marks,marki,nofmarks)
for i=1,nofmarks do
local n=marks[i]
local pn=rawget(properties,n)
if pn then
- pn=rawget(pn,"injections")
+ local ni=marki[i]
+ local pn=rawget(pn,ni)
if pn then
local p=pn.markbasenode
if p then
@@ -10459,7 +10610,7 @@ local function inject_marks(marks,nofmarks)
local rightkern=nil
local pp=rawget(properties,p)
if pp then
- pp=rawget(pp,"injections")
+ pp=rawget(pp,ni)
if pp then
rightkern=pp.rightkern
end
@@ -10468,11 +10619,17 @@ local function inject_marks(marks,nofmarks)
if pn.markdir<0 then
ox=px-pn.markx-rightkern
else
- local leftkern=pp.leftkern
- if leftkern then
- ox=px-pn.markx
+
+
+ if false then
+ local leftkern=pp.leftkern
+ if leftkern then
+ ox=px-pn.markx-leftkern
+ else
+ ox=px-pn.markx
+ end
else
- ox=px-pn.markx-leftkern
+ ox=px-pn.markx
end
end
else
@@ -10485,12 +10642,7 @@ local function inject_marks(marks,nofmarks)
end
setfield(n,"xoffset",ox)
local py=getfield(p,"yoffset")
- local oy=0
- if marks[p] then
- oy=py+pn.marky
- else
- oy=getfield(n,"yoffset")+py+pn.marky
- end
+ local oy=getfield(n,"yoffset")+py+pn.marky
setfield(n,"yoffset",oy)
else
end
@@ -10498,14 +10650,14 @@ local function inject_marks(marks,nofmarks)
end
end
end
-local function inject_cursives(glyphs,nofglyphs)
+local function inject_cursives(glyphs,glyphi,nofglyphs)
local cursiveanchor,lastanchor=nil,nil
local minc,maxc,last=0,0,nil
for i=1,nofglyphs do
local n=glyphs[i]
local pn=rawget(properties,n)
if pn then
- pn=rawget(pn,"injections")
+ pn=rawget(pn,glyphi[i])
end
if pn then
local cursivex=pn.cursivex
@@ -10571,22 +10723,59 @@ local function inject_cursives(glyphs,nofglyphs)
end
end
end
-local function inject_kerns(head,list,length)
+local function inject_kerns(head,glist,ilist,length)
for i=1,length do
- local n=list[i]
+ local n=glist[i]
local pn=rawget(properties,n)
if pn then
- local i=rawget(pn,"injections")
- if i then
- local leftkern=i.leftkern
- if leftkern and leftkern~=0 then
- insert_node_before(head,n,newkern(leftkern))
- end
- local rightkern=i.rightkern
- if rightkern and rightkern~=0 then
- insert_node_after(head,n,newkern(rightkern))
- end
- end
+ local dp=nil
+ local dr=nil
+ local ni=ilist[i]
+ local p=nil
+ if ni=="injections" then
+ p=getprev(n)
+ if p then
+ local id=getid(p)
+ if id==disc_code then
+ dp=getfield(p,"post")
+ dr=getfield(p,"replace")
+ end
+ end
+ end
+ if dp then
+ local i=rawget(pn,"postinjections")
+ if i then
+ local leftkern=i.leftkern
+ if leftkern and leftkern~=0 then
+ local t=find_tail(dp)
+ insert_node_after(dp,t,newkern(leftkern))
+ setfield(p,"post",dp)
+ end
+ end
+ end
+ if dr then
+ local i=rawget(pn,"replaceinjections")
+ if i then
+ local leftkern=i.leftkern
+ if leftkern and leftkern~=0 then
+ local t=find_tail(dr)
+ insert_node_after(dr,t,newkern(leftkern))
+ setfield(p,"replace",dr)
+ end
+ end
+ else
+ local i=rawget(pn,ni)
+ if i then
+ local leftkern=i.leftkern
+ if leftkern and leftkern~=0 then
+ insert_node_before(head,n,newkern(leftkern))
+ end
+ local rightkern=i.rightkern
+ if rightkern and rightkern~=0 then
+ insert_node_after(head,n,newkern(rightkern))
+ end
+ end
+ end
end
end
end
@@ -10595,23 +10784,18 @@ local function inject_everything(head,where)
if trace_injections then
trace(head,"everything")
end
- local glyphs,nofglyphs,marks,nofmarks
- if nofregisteredpairs>0 then
- glyphs,nofglyphs,marks,nofmarks=collect_glyphs_1(head)
- else
- glyphs,nofglyphs,marks,nofmarks=collect_glyphs_2(head)
- end
+ local glyphs,glyphi,nofglyphs,marks,marki,nofmarks=collect_glyphs(head,nofregisteredpairs>0)
if nofglyphs>0 then
if nofregisteredcursives>0 then
- inject_cursives(glyphs,nofglyphs)
+ inject_cursives(glyphs,glyphi,nofglyphs)
end
if nofregisteredmarks>0 then
- inject_marks(marks,nofmarks)
+ inject_marks(marks,marki,nofmarks)
end
- inject_kerns(head,glyphs,nofglyphs)
+ inject_kerns(head,glyphs,glyphi,nofglyphs)
end
if nofmarks>0 then
- inject_kerns(head,marks,nofmarks)
+ inject_kerns(head,marks,marki,nofmarks)
end
if keepregisteredcounts then
keepregisteredcounts=false
@@ -10629,7 +10813,7 @@ local function inject_kerns_only(head,where)
trace(head,"kerns")
end
local n=head
- local p=nil
+ local p=nil
while n do
local id=getid(n)
if id==glyph_code then
@@ -10645,6 +10829,7 @@ local function inject_kerns_only(head,where)
if leftkern and leftkern~=0 then
local t=find_tail(d)
insert_node_after(d,t,newkern(leftkern))
+ setfield(p,"post",d)
end
end
end
@@ -10656,6 +10841,7 @@ local function inject_kerns_only(head,where)
if leftkern and leftkern~=0 then
local t=find_tail(d)
insert_node_after(d,t,newkern(leftkern))
+ setfield(p,"replace",d)
end
end
else
@@ -10677,8 +10863,6 @@ local function inject_kerns_only(head,where)
end
end
end
- else
- break
end
p=nil
elseif id==disc_code then
@@ -10733,7 +10917,7 @@ local function inject_kerns_only(head,where)
local h=d
for n in traverse_id(glyph_code,d) do
if getsubtype(n)<256 then
- local pn=rawget(properties,n)
+ local pn=rawget(properties,n)
if pn then
local i=rawget(pn,"replaceinjections")
if i then
@@ -10770,7 +10954,7 @@ local function inject_pairs_only(head,where)
trace(head,"pairs")
end
local n=head
- local p=nil
+ local p=nil
while n do
local id=getid(n)
if id==glyph_code then
@@ -10786,6 +10970,7 @@ local function inject_pairs_only(head,where)
if leftkern and leftkern~=0 then
local t=find_tail(d)
insert_node_after(d,t,newkern(leftkern))
+ setfield(p,"post",d)
end
end
end
@@ -10797,6 +10982,7 @@ local function inject_pairs_only(head,where)
if leftkern and leftkern~=0 then
local t=find_tail(d)
insert_node_after(d,t,newkern(leftkern))
+ setfield(p,"replace",d)
end
end
else
@@ -10811,24 +10997,22 @@ local function inject_pairs_only(head,where)
else
local i=rawget(pn,"injections")
if i then
- local yoffset=i.yoffset
- if yoffset and yoffset~=0 then
- setfield(n,"yoffset",yoffset)
- end
local leftkern=i.leftkern
if leftkern and leftkern~=0 then
- insert_node_before(head,n,newkern(leftkern))
+ head=insert_node_before(head,n,newkern(leftkern))
end
local rightkern=i.rightkern
if rightkern and rightkern~=0 then
insert_node_after(head,n,newkern(rightkern))
n=getnext(n)
end
+ local yoffset=i.yoffset
+ if yoffset and yoffset~=0 then
+ setfield(n,"yoffset",yoffset)
+ end
end
end
end
- else
- break
end
p=nil
elseif id==disc_code then
@@ -10837,16 +11021,12 @@ local function inject_pairs_only(head,where)
local h=d
for n in traverse_id(glyph_code,d) do
if getsubtype(n)<256 then
- local p=rawget(properties,n)
- if p then
- local i=rawget(p,"preinjections")
+ local pn=rawget(properties,n)
+ if pn then
+ local i=rawget(pn,"preinjections")
if i then
- local yoffset=i.yoffset
- if yoffset and yoffset~=0 then
- setfield(n,"yoffset",yoffset)
- end
local leftkern=i.leftkern
- if leftkern~=0 then
+ if leftkern and leftkern~=0 then
h=insert_node_before(h,n,newkern(leftkern))
end
local rightkern=i.rightkern
@@ -10854,6 +11034,10 @@ local function inject_pairs_only(head,where)
insert_node_after(head,n,newkern(rightkern))
n=getnext(n)
end
+ local yoffset=i.yoffset
+ if yoffset and yoffset~=0 then
+ setfield(n,"yoffset",yoffset)
+ end
end
end
else
@@ -10869,14 +11053,10 @@ local function inject_pairs_only(head,where)
local h=d
for n in traverse_id(glyph_code,d) do
if getsubtype(n)<256 then
- local p=rawget(properties,n)
- if p then
- local i=rawget(p,"postinjections")
+ local pn=rawget(properties,n)
+ if pn then
+ local i=rawget(pn,"postinjections")
if i then
- local yoffset=i.yoffset
- if yoffset and yoffset~=0 then
- setfield(n,"yoffset",yoffset)
- end
local leftkern=i.leftkern
if leftkern and leftkern~=0 then
h=insert_node_before(h,n,newkern(leftkern))
@@ -10886,6 +11066,10 @@ local function inject_pairs_only(head,where)
insert_node_after(head,n,newkern(rightkern))
n=getnext(n)
end
+ local yoffset=i.yoffset
+ if yoffset and yoffset~=0 then
+ setfield(n,"yoffset",yoffset)
+ end
end
end
else
@@ -10901,14 +11085,10 @@ local function inject_pairs_only(head,where)
local h=d
for n in traverse_id(glyph_code,d) do
if getsubtype(n)<256 then
- local p=rawget(properties,n)
- if p then
- local i=rawget(p,"replaceinjections")
+ local pn=rawget(properties,n)
+ if pn then
+ local i=rawget(pn,"replaceinjections")
if i then
- local yoffset=i.yoffset
- if yoffset and yoffset~=0 then
- setfield(n,"yoffset",yoffset)
- end
local leftkern=i.leftkern
if leftkern and leftkern~=0 then
h=insert_node_before(h,n,newkern(leftkern))
@@ -10918,6 +11098,10 @@ local function inject_pairs_only(head,where)
insert_node_after(head,n,newkern(rightkern))
n=getnext(n)
end
+ local yoffset=i.yoffset
+ if yoffset and yoffset~=0 then
+ setfield(n,"yoffset",yoffset)
+ end
end
end
else
@@ -10942,7 +11126,7 @@ local function inject_pairs_only(head,where)
end
return tonode(head),true
end
-function injections.handler(head,where)
+function injections.handler(head,where)
if nofregisteredmarks>0 or nofregisteredcursives>0 then
return inject_everything(head,where)
elseif nofregisteredpairs>0 then
@@ -11342,14 +11526,12 @@ if not modules then modules={} end modules ['font-otn']={
copyright="PRAGMA ADE / ConTeXt Development Team",
license="see context related readme files",
}
-local concat,insert,remove=table.concat,table.insert,table.remove
-local gmatch,gsub,find,match,lower,strip=string.gmatch,string.gsub,string.find,string.match,string.lower,string.strip
-local type,next,tonumber,tostring=type,next,tonumber,tostring
-local lpegmatch=lpeg.match
+local type,next,tonumber=type,next,tonumber
local random=math.random
local formatters=string.formatters
local logs,trackers,nodes,attributes=logs,trackers,nodes,attributes
local registertracker=trackers.register
+local registerdirective=directives.register
local fonts=fonts
local otf=fonts.handlers.otf
local trace_lookups=false registertracker("otf.lookups",function(v) trace_lookups=v end)
@@ -11368,6 +11550,13 @@ local trace_applied=false registertracker("otf.applied",function(v) trace_applie
local trace_steps=false registertracker("otf.steps",function(v) trace_steps=v end)
local trace_skips=false registertracker("otf.skips",function(v) trace_skips=v end)
local trace_directions=false registertracker("otf.directions",function(v) trace_directions=v end)
+local trace_kernruns=false registertracker("otf.kernruns",function(v) trace_kernruns=v end)
+local trace_discruns=false registertracker("otf.discruns",function(v) trace_discruns=v end)
+local trace_compruns=false registertracker("otf.compruns",function(v) trace_compruns=v end)
+local quit_on_no_replacement=true
+local zwnjruns=true
+registerdirective("otf.zwnjruns",function(v) zwnjruns=v end)
+registerdirective("otf.chain.quitonnoreplacement",function(value) quit_on_no_replacement=value end)
local report_direct=logs.reporter("fonts","otf direct")
local report_subchain=logs.reporter("fonts","otf subchain")
local report_chain=logs.reporter("fonts","otf chain")
@@ -11426,8 +11615,6 @@ local math_code=nodecodes.math
local dir_code=whatcodes.dir
local localpar_code=whatcodes.localpar
local discretionary_code=disccodes.discretionary
-local regular_code=disccodes.regular
-local automatic_code=disccodes.automatic
local ligature_code=glyphcodes.ligature
local privateattribute=attributes.private
local a_state=privateattribute('state')
@@ -11461,6 +11648,13 @@ local lookuptags=false
local handlers={}
local rlmode=0
local featurevalue=false
+local sweephead={}
+local sweepnode=nil
+local sweepprev=nil
+local sweepnext=nil
+local notmatchpre={}
+local notmatchpost={}
+local notmatchreplace={}
local checkstep=(nodes and nodes.tracers and nodes.tracers.steppers.check) or function() end
local registerstep=(nodes and nodes.tracers and nodes.tracers.steppers.register) or function() end
local registermessage=(nodes and nodes.tracers and nodes.tracers.steppers.message) or function() end
@@ -11530,6 +11724,65 @@ local function copy_glyph(g)
return n
end
end
+local function flattendisk(head,disc)
+ local replace=getfield(disc,"replace")
+ setfield(disc,"replace",nil)
+ free_node(disc)
+ if head==disc then
+ local next=getnext(disc)
+ if replace then
+ if next then
+ local tail=find_node_tail(replace)
+ setfield(tail,"next",next)
+ setfield(next,"prev",tail)
+ end
+ return replace,replace
+ elseif next then
+ return next,next
+ else
+ return
+ end
+ else
+ local next=getnext(disc)
+ local prev=getprev(disc)
+ if replace then
+ local tail=find_node_tail(replace)
+ if next then
+ setfield(tail,"next",next)
+ setfield(next,"prev",tail)
+ end
+ setfield(prev,"next",replace)
+ setfield(replace,"prev",prev)
+ return head,replace
+ else
+ if next then
+ setfield(next,"prev",prev)
+ end
+ setfield(prev,"next",next)
+ return head,next
+ end
+ end
+end
+local function appenddisc(disc,list)
+ local post=getfield(disc,"post")
+ local replace=getfield(disc,"replace")
+ local phead=list
+ local rhead=copy_node_list(list)
+ local ptail=find_node_tail(post)
+ local rtail=find_node_tail(replace)
+ if post then
+ setfield(ptail,"next",phead)
+ setfield(phead,"prev",ptail)
+ else
+ setfield(disc,"post",phead)
+ end
+ if replace then
+ setfield(rtail,"next",rhead)
+ setfield(rhead,"prev",rtail)
+ else
+ setfield(disc,"replace",rhead)
+ end
+end
local function markstoligature(kind,lookupname,head,start,stop,char)
if start==stop and getchar(start)==char then
return head,start
@@ -11557,8 +11810,8 @@ local function markstoligature(kind,lookupname,head,start,stop,char)
return head,base
end
end
-local function getcomponentindex(start)
- if getid(start)~=glyph_code then
+local function getcomponentindex(start)
+ if getid(start)~=glyph_code then
return 0
elseif getsubtype(start)==ligature_code then
local i=0
@@ -11574,14 +11827,22 @@ local function getcomponentindex(start)
return 0
end
end
+local a_noligature=attributes.private("noligature")
local function toligature(kind,lookupname,head,start,stop,char,markflag,discfound)
+ if getattr(start,a_noligature)==1 then
+ return head,start
+ end
if start==stop and getchar(start)==char then
resetinjection(start)
setfield(start,"char",char)
return head,start
end
+ local components=getfield(start,"components")
+ if components then
+ end
local prev=getprev(start)
local next=getnext(stop)
+ local comp=start
setfield(start,"prev",nil)
setfield(stop,"next",nil)
local base=copy_glyph(start)
@@ -11591,15 +11852,15 @@ local function toligature(kind,lookupname,head,start,stop,char,markflag,discfoun
resetinjection(base)
setfield(base,"char",char)
setfield(base,"subtype",ligature_code)
- setfield(base,"components",start)
+ setfield(base,"components",comp)
if prev then
setfield(prev,"next",base)
end
if next then
setfield(next,"prev",base)
end
- setfield(base,"next",next)
setfield(base,"prev",prev)
+ setfield(base,"next",next)
if not discfound then
local deletemarks=markflag~="mark"
local components=start
@@ -11617,7 +11878,9 @@ local function toligature(kind,lookupname,head,start,stop,char,markflag,discfoun
if trace_marks then
logwarning("%s: keep mark %s, gets index %s",pref(kind,lookupname),gref(char),getligaindex(start))
end
- head,current=insert_node_after(head,current,copy_node(start))
+ local n=copy_node(start)
+ copyinjection(n,start)
+ head,current=insert_node_after(head,current,n)
elseif trace_marks then
logwarning("%s: delete mark %s",pref(kind,lookupname),gref(char))
end
@@ -11636,16 +11899,75 @@ local function toligature(kind,lookupname,head,start,stop,char,markflag,discfoun
end
start=getnext(start)
end
+ else
+ local discprev=getfield(discfound,"prev")
+ local discnext=getfield(discfound,"next")
+ if discprev and discnext then
+ local pre=getfield(discfound,"pre")
+ local post=getfield(discfound,"post")
+ local replace=getfield(discfound,"replace")
+ if not replace then
+ local prev=getfield(base,"prev")
+ local copied=copy_node_list(comp)
+ setfield(discnext,"prev",nil)
+ setfield(discprev,"next",nil)
+ if pre then
+ setfield(discprev,"next",pre)
+ setfield(pre,"prev",discprev)
+ end
+ pre=comp
+ if post then
+ local tail=find_node_tail(post)
+ setfield(tail,"next",discnext)
+ setfield(discnext,"prev",tail)
+ setfield(post,"prev",nil)
+ else
+ post=discnext
+ end
+ setfield(prev,"next",discfound)
+ setfield(discfound,"prev",prev)
+ setfield(discfound,"next",next)
+ setfield(next,"prev",discfound)
+ setfield(base,"next",nil)
+ setfield(base,"prev",nil)
+ setfield(base,"components",copied)
+ setfield(discfound,"pre",pre)
+ setfield(discfound,"post",post)
+ setfield(discfound,"replace",base)
+ setfield(discfound,"subtype",discretionary_code)
+ base=prev
+ end
+ end
end
return head,base
end
-function handlers.gsub_single(head,start,kind,lookupname,replacement)
- if trace_singles then
- logprocess("%s: replacing %s by single %s",pref(kind,lookupname),gref(getchar(start)),gref(replacement))
+local function multiple_glyphs(head,start,multiple,ignoremarks)
+ local nofmultiples=#multiple
+ if nofmultiples>0 then
+ resetinjection(start)
+ setfield(start,"char",multiple[1])
+ if nofmultiples>1 then
+ local sn=getnext(start)
+ for k=2,nofmultiples do
+ local n=copy_node(start)
+ resetinjection(n)
+ setfield(n,"char",multiple[k])
+ setfield(n,"prev",start)
+ setfield(n,"next",sn)
+ if sn then
+ setfield(sn,"prev",n)
+ end
+ setfield(start,"next",n)
+ start=n
+ end
+ end
+ return head,start,true
+ else
+ if trace_multiples then
+ logprocess("no multiple for %s",gref(getchar(start)))
+ end
+ return head,start,false
end
- resetinjection(start)
- setfield(start,"char",replacement)
- return head,start,true
end
local function get_alternative_glyph(start,alternatives,value,trace_alternatives)
local n=#alternatives
@@ -11678,33 +12000,13 @@ local function get_alternative_glyph(start,alternatives,value,trace_alternatives
end
end
end
-local function multiple_glyphs(head,start,multiple,ignoremarks)
- local nofmultiples=#multiple
- if nofmultiples>0 then
- resetinjection(start)
- setfield(start,"char",multiple[1])
- if nofmultiples>1 then
- local sn=getnext(start)
- for k=2,nofmultiples do
- local n=copy_node(start)
- resetinjection(n)
- setfield(n,"char",multiple[k])
- setfield(n,"next",sn)
- setfield(n,"prev",start)
- if sn then
- setfield(sn,"prev",n)
- end
- setfield(start,"next",n)
- start=n
- end
- end
- return head,start,true
- else
- if trace_multiples then
- logprocess("no multiple for %s",gref(getchar(start)))
- end
- return head,start,false
+function handlers.gsub_single(head,start,kind,lookupname,replacement)
+ if trace_singles then
+ logprocess("%s: replacing %s by single %s",pref(kind,lookupname),gref(getchar(start)),gref(replacement))
end
+ resetinjection(start)
+ setfield(start,"char",replacement)
+ return head,start,true
end
function handlers.gsub_alternate(head,start,kind,lookupname,alternative,sequence)
local value=featurevalue==true and tfmdata.shared.features[kind] or featurevalue
@@ -11729,7 +12031,7 @@ function handlers.gsub_multiple(head,start,kind,lookupname,multiple,sequence)
return multiple_glyphs(head,start,multiple,sequence.flags[1])
end
function handlers.gsub_ligature(head,start,kind,lookupname,ligature,sequence)
- local s,stop,discfound=getnext(start),nil,false
+ local s,stop=getnext(start),nil
local startchar=getchar(start)
if marks[startchar] then
while s do
@@ -11757,23 +12059,29 @@ function handlers.gsub_ligature(head,start,kind,lookupname,ligature,sequence)
else
head,start=markstoligature(kind,lookupname,head,start,stop,lig)
end
- return head,start,true
+ return head,start,true,false
else
end
end
else
local skipmark=sequence.flags[1]
+ local discfound=false
+ local lastdisc=nil
while s do
local id=getid(s)
- if id==glyph_code and getsubtype(s)<256 then
- if getfont(s)==currentfont then
+ if id==glyph_code and getsubtype(s)<256 then
+ if getfont(s)==currentfont then
local char=getchar(s)
if skipmark and marks[char] then
s=getnext(s)
- else
- local lg=ligature[char]
+ else
+ local lg=ligature[char]
if lg then
- stop=s
+ if not discfound and lastdisc then
+ discfound=lastdisc
+ lastdisc=nil
+ end
+ stop=s
ligature=lg
s=getnext(s)
else
@@ -11784,13 +12092,13 @@ function handlers.gsub_ligature(head,start,kind,lookupname,ligature,sequence)
break
end
elseif id==disc_code then
- discfound=true
+ lastdisc=s
s=getnext(s)
else
break
end
end
- local lig=ligature.ligature
+ local lig=ligature.ligature
if lig then
if stop then
if trace_ligatures then
@@ -11807,12 +12115,71 @@ function handlers.gsub_ligature(head,start,kind,lookupname,ligature,sequence)
logprocess("%s: replacing %s by (no real) ligature %s case 3",pref(kind,lookupname),gref(startchar),gref(lig))
end
end
- return head,start,true
+ return head,start,true,discfound
else
end
end
+ return head,start,false,discfound
+end
+function handlers.gpos_single(head,start,kind,lookupname,kerns,sequence,injection)
+ local startchar=getchar(start)
+ local dx,dy,w,h=setpair(start,tfmdata.parameters.factor,rlmode,sequence.flags[4],kerns,injection)
+ if trace_kerns then
+ logprocess("%s: shifting single %s by (%p,%p) and correction (%p,%p)",pref(kind,lookupname),gref(startchar),dx,dy,w,h)
+ end
return head,start,false
end
+function handlers.gpos_pair(head,start,kind,lookupname,kerns,sequence,lookuphash,i,injection)
+ local snext=getnext(start)
+ if not snext then
+ return head,start,false
+ else
+ local prev=start
+ local done=false
+ local factor=tfmdata.parameters.factor
+ local lookuptype=lookuptypes[lookupname]
+ while snext and getid(snext)==glyph_code and getfont(snext)==currentfont and getsubtype(snext)<256 do
+ local nextchar=getchar(snext)
+ local krn=kerns[nextchar]
+ if not krn and marks[nextchar] then
+ prev=snext
+ snext=getnext(snext)
+ else
+ if not krn then
+ elseif type(krn)=="table" then
+ if lookuptype=="pair" then
+ local a,b=krn[2],krn[3]
+ if a and #a>0 then
+ local x,y,w,h=setpair(start,factor,rlmode,sequence.flags[4],a,injection)
+ if trace_kerns then
+ local startchar=getchar(start)
+ logprocess("%s: shifting first of pair %s and %s by (%p,%p) and correction (%p,%p)",pref(kind,lookupname),gref(startchar),gref(nextchar),x,y,w,h)
+ end
+ end
+ if b and #b>0 then
+ local x,y,w,h=setpair(snext,factor,rlmode,sequence.flags[4],b,injection)
+ if trace_kerns then
+ local startchar=getchar(start)
+ logprocess("%s: shifting second of pair %s and %s by (%p,%p) and correction (%p,%p)",pref(kind,lookupname),gref(startchar),gref(nextchar),x,y,w,h)
+ end
+ end
+ else
+ report_process("%s: check this out (old kern stuff)",pref(kind,lookupname))
+ end
+ done=true
+ elseif krn~=0 then
+ local k=setkern(snext,factor,rlmode,krn,injection)
+ if trace_kerns then
+ logprocess("%s: inserting kern %s between %s and %s",pref(kind,lookupname),k,gref(getchar(prev)),gref(nextchar))
+ end
+ done=true
+ end
+ break
+ end
+ end
+ return head,start,done
+ end
+end
function handlers.gpos_mark2base(head,start,kind,lookupname,markanchors,sequence)
local markchar=getchar(start)
if marks[markchar] then
@@ -11965,7 +12332,7 @@ function handlers.gpos_mark2mark(head,start,kind,lookupname,markanchors,sequence
if al[anchor] then
local ma=markanchors[anchor]
if ma then
- local dx,dy,bound=setmark(start,base,tfmdata.parameters.factor,rlmode,ba,ma,characters[basechar])
+ local dx,dy,bound=setmark(start,base,tfmdata.parameters.factor,rlmode,ba,ma,characters[basechar],true)
if trace_marks then
logprocess("%s, anchor %s, bound %s: anchoring mark %s to basemark %s => (%p,%p)",
pref(kind,lookupname),anchor,bound,gref(markchar),gref(basechar),dx,dy)
@@ -12043,65 +12410,6 @@ function handlers.gpos_cursive(head,start,kind,lookupname,exitanchors,sequence)
return head,start,false
end
end
-function handlers.gpos_single(head,start,kind,lookupname,kerns,sequence)
- local startchar=getchar(start)
- local dx,dy,w,h=setpair(start,tfmdata.parameters.factor,rlmode,sequence.flags[4],kerns,characters[startchar])
- if trace_kerns then
- logprocess("%s: shifting single %s by (%p,%p) and correction (%p,%p)",pref(kind,lookupname),gref(startchar),dx,dy,w,h)
- end
- return head,start,false
-end
-function handlers.gpos_pair(head,start,kind,lookupname,kerns,sequence)
- local snext=getnext(start)
- if not snext then
- return head,start,false
- else
- local prev,done=start,false
- local factor=tfmdata.parameters.factor
- local lookuptype=lookuptypes[lookupname]
- while snext and getid(snext)==glyph_code and getfont(snext)==currentfont and getsubtype(snext)<256 do
- local nextchar=getchar(snext)
- local krn=kerns[nextchar]
- if not krn and marks[nextchar] then
- prev=snext
- snext=getnext(snext)
- else
- if not krn then
- elseif type(krn)=="table" then
- if lookuptype=="pair" then
- local a,b=krn[2],krn[3]
- if a and #a>0 then
- local startchar=getchar(start)
- local x,y,w,h=setpair(start,factor,rlmode,sequence.flags[4],a,characters[startchar])
- if trace_kerns then
- logprocess("%s: shifting first of pair %s and %s by (%p,%p) and correction (%p,%p)",pref(kind,lookupname),gref(startchar),gref(nextchar),x,y,w,h)
- end
- end
- if b and #b>0 then
- local startchar=getchar(start)
- local x,y,w,h=setpair(snext,factor,rlmode,sequence.flags[4],b,characters[nextchar])
- if trace_kerns then
- logprocess("%s: shifting second of pair %s and %s by (%p,%p) and correction (%p,%p)",pref(kind,lookupname),gref(startchar),gref(nextchar),x,y,w,h)
- end
- end
- else
- report_process("%s: check this out (old kern stuff)",pref(kind,lookupname))
- end
- done=true
- elseif krn~=0 then
- local k=setkern(snext,factor,rlmode,krn)
- if trace_kerns then
- logprocess("%s: inserting kern %s between %s and %s",pref(kind,lookupname),k,gref(getchar(prev)),gref(nextchar))
- end
- done=true
- end
- break
- end
- end
- return head,start,done
- end
-end
-local chainmores={}
local chainprocs={}
local function logprocess(...)
if trace_steps then
@@ -12121,10 +12429,6 @@ function chainprocs.chainsub(head,start,stop,kind,chainname,currentcontext,looku
logwarning("%s: a direct call to chainsub cannot happen",cref(kind,chainname,chainlookupname))
return head,start,false
end
-function chainmores.chainsub(head,start,stop,kind,chainname,currentcontext,lookuphash,lookuplist,chainlookupname,n)
- logprocess("%s: a direct call to chainsub cannot happen",cref(kind,chainname,chainlookupname))
- return head,start,false
-end
function chainprocs.reversesub(head,start,stop,kind,chainname,currentcontext,lookuphash,replacements)
local char=getchar(start)
local replacement=replacements[char]
@@ -12143,7 +12447,7 @@ function chainprocs.gsub_single(head,start,stop,kind,chainname,currentcontext,lo
local current=start
local subtables=currentlookup.subtables
if #subtables>1 then
- logwarning("todo: check if we need to loop over the replacements: %s",concat(subtables," "))
+ logwarning("todo: check if we need to loop over the replacements: % t",subtables)
end
while current do
if getid(current)==glyph_code then
@@ -12177,7 +12481,6 @@ function chainprocs.gsub_single(head,start,stop,kind,chainname,currentcontext,lo
end
return head,start,false
end
-chainmores.gsub_single=chainprocs.gsub_single
function chainprocs.gsub_multiple(head,start,stop,kind,chainname,currentcontext,lookuphash,currentlookup,chainlookupname)
local startchar=getchar(start)
local subtables=currentlookup.subtables
@@ -12202,7 +12505,6 @@ function chainprocs.gsub_multiple(head,start,stop,kind,chainname,currentcontext,
end
return head,start,false
end
-chainmores.gsub_multiple=chainprocs.gsub_multiple
function chainprocs.gsub_alternate(head,start,stop,kind,chainname,currentcontext,lookuphash,currentlookup,chainlookupname)
local current=start
local subtables=currentlookup.subtables
@@ -12244,7 +12546,6 @@ function chainprocs.gsub_alternate(head,start,stop,kind,chainname,currentcontext
end
return head,start,false
end
-chainmores.gsub_alternate=chainprocs.gsub_alternate
function chainprocs.gsub_ligature(head,start,stop,kind,chainname,currentcontext,lookuphash,currentlookup,chainlookupname,chainindex)
local startchar=getchar(start)
local subtables=currentlookup.subtables
@@ -12264,13 +12565,19 @@ function chainprocs.gsub_ligature(head,start,stop,kind,chainname,currentcontext,
local s=getnext(start)
local discfound=false
local last=stop
- local nofreplacements=0
+ local nofreplacements=1
local skipmark=currentlookup.flags[1]
while s do
local id=getid(s)
if id==disc_code then
- s=getnext(s)
- discfound=true
+ if not discfound then
+ discfound=s
+ end
+ if s==stop then
+ break
+ else
+ s=getnext(s)
+ end
else
local schar=getchar(s)
if skipmark and marks[schar] then
@@ -12303,7 +12610,7 @@ function chainprocs.gsub_ligature(head,start,stop,kind,chainname,currentcontext,
end
end
head,start=toligature(kind,lookupname,head,start,stop,l2,currentlookup.flags[1],discfound)
- return head,start,true,nofreplacements
+ return head,start,true,nofreplacements,discfound
elseif trace_bugs then
if start==stop then
logwarning("%s: replacing character %s by ligature fails",cref(kind,chainname,chainlookupname,lookupname,chainindex),gref(startchar))
@@ -12313,10 +12620,83 @@ function chainprocs.gsub_ligature(head,start,stop,kind,chainname,currentcontext,
end
end
end
- return head,start,false,0
+ return head,start,false,0,false
end
-chainmores.gsub_ligature=chainprocs.gsub_ligature
-function chainprocs.gpos_mark2base(head,start,stop,kind,chainname,currentcontext,lookuphash,currentlookup,chainlookupname)
+function chainprocs.gpos_single(head,start,stop,kind,chainname,currentcontext,lookuphash,currentlookup,chainlookupname,chainindex,sequence)
+ local startchar=getchar(start)
+ local subtables=currentlookup.subtables
+ local lookupname=subtables[1]
+ local kerns=lookuphash[lookupname]
+ if kerns then
+ kerns=kerns[startchar]
+ if kerns then
+ local dx,dy,w,h=setpair(start,tfmdata.parameters.factor,rlmode,sequence.flags[4],kerns)
+ if trace_kerns then
+ logprocess("%s: shifting single %s by (%p,%p) and correction (%p,%p)",cref(kind,chainname,chainlookupname),gref(startchar),dx,dy,w,h)
+ end
+ end
+ end
+ return head,start,false
+end
+function chainprocs.gpos_pair(head,start,stop,kind,chainname,currentcontext,lookuphash,currentlookup,chainlookupname,chainindex,sequence)
+ local snext=getnext(start)
+ if snext then
+ local startchar=getchar(start)
+ local subtables=currentlookup.subtables
+ local lookupname=subtables[1]
+ local kerns=lookuphash[lookupname]
+ if kerns then
+ kerns=kerns[startchar]
+ if kerns then
+ local lookuptype=lookuptypes[lookupname]
+ local prev,done=start,false
+ local factor=tfmdata.parameters.factor
+ while snext and getid(snext)==glyph_code and getfont(snext)==currentfont and getsubtype(snext)<256 do
+ local nextchar=getchar(snext)
+ local krn=kerns[nextchar]
+ if not krn and marks[nextchar] then
+ prev=snext
+ snext=getnext(snext)
+ else
+ if not krn then
+ elseif type(krn)=="table" then
+ if lookuptype=="pair" then
+ local a,b=krn[2],krn[3]
+ if a and #a>0 then
+ local startchar=getchar(start)
+ local x,y,w,h=setpair(start,factor,rlmode,sequence.flags[4],a)
+ if trace_kerns then
+ logprocess("%s: shifting first of pair %s and %s by (%p,%p) and correction (%p,%p)",cref(kind,chainname,chainlookupname),gref(startchar),gref(nextchar),x,y,w,h)
+ end
+ end
+ if b and #b>0 then
+ local startchar=getchar(start)
+ local x,y,w,h=setpair(snext,factor,rlmode,sequence.flags[4],b)
+ if trace_kerns then
+ logprocess("%s: shifting second of pair %s and %s by (%p,%p) and correction (%p,%p)",cref(kind,chainname,chainlookupname),gref(startchar),gref(nextchar),x,y,w,h)
+ end
+ end
+ else
+ report_process("%s: check this out (old kern stuff)",cref(kind,chainname,chainlookupname))
+ end
+ done=true
+ elseif krn~=0 then
+ local k=setkern(snext,factor,rlmode,krn)
+ if trace_kerns then
+ logprocess("%s: inserting kern %s between %s and %s",cref(kind,chainname,chainlookupname),k,gref(getchar(prev)),gref(nextchar))
+ end
+ done=true
+ end
+ break
+ end
+ end
+ return head,start,done
+ end
+ end
+ end
+ return head,start,false
+end
+function chainprocs.gpos_mark2base(head,start,stop,kind,chainname,currentcontext,lookuphash,currentlookup,chainlookupname)
local markchar=getchar(start)
if marks[markchar] then
local subtables=currentlookup.subtables
@@ -12479,7 +12859,7 @@ function chainprocs.gpos_mark2mark(head,start,stop,kind,chainname,currentcontext
if al[anchor] then
local ma=markanchors[anchor]
if ma then
- local dx,dy,bound=setmark(start,base,tfmdata.parameters.factor,rlmode,ba,ma,characters[basechar])
+ local dx,dy,bound=setmark(start,base,tfmdata.parameters.factor,rlmode,ba,ma,characters[basechar],true)
if trace_marks then
logprocess("%s, anchor %s, bound %s: anchoring mark %s to basemark %s => (%p,%p)",
cref(kind,chainname,chainlookupname,lookupname),anchor,bound,gref(markchar),gref(basechar),dx,dy)
@@ -12566,113 +12946,286 @@ function chainprocs.gpos_cursive(head,start,stop,kind,chainname,currentcontext,l
end
return head,start,false
end
-function chainprocs.gpos_single(head,start,stop,kind,chainname,currentcontext,lookuphash,currentlookup,chainlookupname,chainindex,sequence)
- local startchar=getchar(start)
- local subtables=currentlookup.subtables
- local lookupname=subtables[1]
- local kerns=lookuphash[lookupname]
- if kerns then
- kerns=kerns[startchar]
- if kerns then
- local dx,dy,w,h=setpair(start,tfmdata.parameters.factor,rlmode,sequence.flags[4],kerns,characters[startchar])
- if trace_kerns then
- logprocess("%s: shifting single %s by (%p,%p) and correction (%p,%p)",cref(kind,chainname,chainlookupname),gref(startchar),dx,dy,w,h)
+local function show_skip(kind,chainname,char,ck,class)
+ if ck[9] then
+ logwarning("%s: skipping char %s, class %a, rule %a, lookuptype %a, %a => %a",cref(kind,chainname),gref(char),class,ck[1],ck[2],ck[9],ck[10])
+ else
+ logwarning("%s: skipping char %s, class %a, rule %a, lookuptype %a",cref(kind,chainname),gref(char),class,ck[1],ck[2])
+ end
+end
+local function chaindisk(head,start,last,kind,chainname,ck,lookuphash,chainlookup,chainlookupname,chainindex,sequence,chainproc)
+ if not start then
+ return head,start,false
+ end
+ local startishead=start==head
+ local seq=ck[3]
+ local f=ck[4]
+ local l=ck[5]
+ local s=#seq
+ local done=false
+ local sweepnode=sweepnode
+ local sweeptype=sweeptype
+ local sweepoverflow=false
+ local checkdisc=getprev(head)
+ local keepdisc=not sweepnode
+ local lookaheaddisc=nil
+ local backtrackdisc=nil
+ local current=start
+ local last=start
+ local prev=getprev(start)
+ local i=f
+ while i<=l do
+ local id=getid(current)
+ if id==glyph_code then
+ i=i+1
+ last=current
+ current=getnext(current)
+ elseif id==disc_code then
+ if keepdisc then
+ keepdisc=false
+ if notmatchpre[current]~=notmatchreplace[current] then
+ lookaheaddisc=current
+ end
+ local replace=getfield(current,"replace")
+ while replace and i<=l do
+ if getid(replace)==glyph_code then
+ i=i+1
+ end
+ replace=getnext(replace)
+ end
+ last=current
+ current=getnext(c)
+ else
+ head,current=flattendisk(head,current)
+ end
+ else
+ last=current
+ current=getnext(current)
+ end
+ if current then
+ elseif sweepoverflow then
+ break
+ elseif sweeptype=="post" or sweeptype=="replace" then
+ current=getnext(sweepnode)
+ if current then
+ sweeptype=nil
+ sweepoverflow=true
+ else
+ break
end
end
end
- return head,start,false
-end
-chainmores.gpos_single=chainprocs.gpos_single
-function chainprocs.gpos_pair(head,start,stop,kind,chainname,currentcontext,lookuphash,currentlookup,chainlookupname,chainindex,sequence)
- local snext=getnext(start)
- if snext then
- local startchar=getchar(start)
- local subtables=currentlookup.subtables
- local lookupname=subtables[1]
- local kerns=lookuphash[lookupname]
- if kerns then
- kerns=kerns[startchar]
- if kerns then
- local lookuptype=lookuptypes[lookupname]
- local prev,done=start,false
- local factor=tfmdata.parameters.factor
- while snext and getid(snext)==glyph_code and getfont(snext)==currentfont and getsubtype(snext)<256 do
- local nextchar=getchar(snext)
- local krn=kerns[nextchar]
- if not krn and marks[nextchar] then
- prev=snext
- snext=getnext(snext)
- else
- if not krn then
- elseif type(krn)=="table" then
- if lookuptype=="pair" then
- local a,b=krn[2],krn[3]
- if a and #a>0 then
- local startchar=getchar(start)
- local x,y,w,h=setpair(start,factor,rlmode,sequence.flags[4],a,characters[startchar])
- if trace_kerns then
- logprocess("%s: shifting first of pair %s and %s by (%p,%p) and correction (%p,%p)",cref(kind,chainname,chainlookupname),gref(startchar),gref(nextchar),x,y,w,h)
- end
- end
- if b and #b>0 then
- local startchar=getchar(start)
- local x,y,w,h=setpair(snext,factor,rlmode,sequence.flags[4],b,characters[nextchar])
- if trace_kerns then
- logprocess("%s: shifting second of pair %s and %s by (%p,%p) and correction (%p,%p)",cref(kind,chainname,chainlookupname),gref(startchar),gref(nextchar),x,y,w,h)
- end
- end
- else
- report_process("%s: check this out (old kern stuff)",cref(kind,chainname,chainlookupname))
- local a,b=krn[2],krn[6]
- if a and a~=0 then
- local k=setkern(snext,factor,rlmode,a)
- if trace_kerns then
- logprocess("%s: inserting first kern %s between %s and %s",cref(kind,chainname,chainlookupname),k,gref(getchar(prev)),gref(nextchar))
- end
- end
- if b and b~=0 then
- logwarning("%s: ignoring second kern xoff %s",cref(kind,chainname,chainlookupname),b*factor)
- end
- end
- done=true
- elseif krn~=0 then
- local k=setkern(snext,factor,rlmode,krn)
- if trace_kerns then
- logprocess("%s: inserting kern %s between %s and %s",cref(kind,chainname,chainlookupname),k,gref(getchar(prev)),gref(nextchar))
- end
- done=true
+ if sweepoverflow then
+ local prev=current and getprev(current)
+ if not current or prev~=sweepnode then
+ local head=getnext(sweepnode)
+ local tail=nil
+ if prev then
+ tail=prev
+ setfield(current,"prev",sweepnode)
+ else
+ tail=find_node_tail(head)
+ end
+ setfield(sweepnode,"next",current)
+ setfield(head,"prev",nil)
+ setfield(tail,"next",nil)
+ appenddisc(sweepnode,head)
+ end
+ end
+ if l<s then
+ local i=l
+ local t=sweeptype=="post" or sweeptype=="replace"
+ while current and i<s do
+ local id=getid(current)
+ if id==glyph_code then
+ i=i+1
+ current=getnext(current)
+ elseif id==disc_code then
+ if keepdisc then
+ keepdisc=false
+ if notmatchpre[current]~=notmatchreplace[current] then
+ lookaheaddisc=current
+ end
+ local replace=getfield(c,"replace")
+ while replace and i<s do
+ if getid(replace)==glyph_code then
+ i=i+1
end
- break
+ replace=getnext(replace)
end
+ current=getnext(current)
+ elseif notmatchpre[current]~=notmatchreplace[current] then
+ head,current=flattendisk(head,current)
+ else
+ current=getnext(current)
+ end
+ else
+ current=getnext(current)
+ end
+ if not current and t then
+ current=getnext(sweepnode)
+ if current then
+ sweeptype=nil
end
- return head,start,done
end
end
end
- return head,start,false
-end
-chainmores.gpos_pair=chainprocs.gpos_pair
-local function show_skip(kind,chainname,char,ck,class)
- if ck[9] then
- logwarning("%s: skipping char %s, class %a, rule %a, lookuptype %a, %a => %a",cref(kind,chainname),gref(char),class,ck[1],ck[2],ck[9],ck[10])
+ if f>1 then
+ local current=prev
+ local i=f
+ local t=sweeptype=="pre" or sweeptype=="replace"
+ if not current and t and current==checkdisk then
+ current=getprev(sweepnode)
+ end
+ while current and i>1 do
+ local id=getid(current)
+ if id==glyph_code then
+ i=i-1
+ elseif id==disc_code then
+ if keepdisc then
+ keepdisc=false
+ if notmatchpost[current]~=notmatchreplace[current] then
+ backtrackdisc=current
+ end
+ local replace=getfield(current,"replace")
+ while replace and i>1 do
+ if getid(replace)==glyph_code then
+ i=i-1
+ end
+ replace=getnext(replace)
+ end
+ elseif notmatchpost[current]~=notmatchreplace[current] then
+ head,current=flattendisk(head,current)
+ end
+ end
+ current=getprev(current)
+ if t and current==checkdisk then
+ current=getprev(sweepnode)
+ end
+ end
+ end
+ local ok=false
+ if lookaheaddisc then
+ local cf=start
+ local cl=getprev(lookaheaddisc)
+ local cprev=getprev(start)
+ local insertedmarks=0
+ while cprev and getid(cf)==glyph_code and getfont(cf)==currentfont and getsubtype(cf)<256 and marks[getchar(cf)] do
+ insertedmarks=insertedmarks+1
+ cf=cprev
+ startishead=cf==head
+ cprev=getprev(cprev)
+ end
+ setfield(lookaheaddisc,"prev",cprev)
+ if cprev then
+ setfield(cprev,"next",lookaheaddisc)
+ end
+ setfield(cf,"prev",nil)
+ setfield(cl,"next",nil)
+ if startishead then
+ head=lookaheaddisc
+ end
+ local replace=getfield(lookaheaddisc,"replace")
+ local pre=getfield(lookaheaddisc,"pre")
+ local new=copy_node_list(cf)
+ local cnew=new
+ for i=1,insertedmarks do
+ cnew=getnext(cnew)
+ end
+ local clast=cnew
+ for i=f,l do
+ clast=getnext(clast)
+ end
+ if not notmatchpre[lookaheaddisc] then
+ cf,start,ok=chainproc(cf,start,last,kind,chainname,ck,lookuphash,chainlookup,chainlookupname,nil,sequence)
+ end
+ if not notmatchreplace[lookaheaddisc] then
+ new,cnew,ok=chainproc(new,cnew,clast,kind,chainname,ck,lookuphash,chainlookup,chainlookupname,nil,sequence)
+ end
+ if pre then
+ setfield(cl,"next",pre)
+ setfield(pre,"prev",cl)
+ end
+ if replace then
+ local tail=find_node_tail(new)
+ setfield(tail,"next",replace)
+ setfield(replace,"prev",tail)
+ end
+ setfield(lookaheaddisc,"pre",cf)
+ setfield(lookaheaddisc,"replace",new)
+ start=getprev(lookaheaddisc)
+ sweephead[cf]=getnext(clast)
+ sweephead[new]=getnext(last)
+ elseif backtrackdisc then
+ local cf=getnext(backtrackdisc)
+ local cl=start
+ local cnext=getnext(start)
+ local insertedmarks=0
+ while cnext and getid(cnext)==glyph_code and getfont(cnext)==currentfont and getsubtype(cnext)<256 and marks[getchar(cnext)] do
+ insertedmarks=insertedmarks+1
+ cl=cnext
+ cnext=getnext(cnext)
+ end
+ if cnext then
+ setfield(cnext,"prev",backtrackdisc)
+ end
+ setfield(backtrackdisc,"next",cnext)
+ setfield(cf,"prev",nil)
+ setfield(cl,"next",nil)
+ local replace=getfield(backtrackdisc,"replace")
+ local post=getfield(backtrackdisc,"post")
+ local new=copy_node_list(cf)
+ local cnew=find_node_tail(new)
+ for i=1,insertedmarks do
+ cnew=getprev(cnew)
+ end
+ local clast=cnew
+ for i=f,l do
+ clast=getnext(clast)
+ end
+ if not notmatchpost[backtrackdisc] then
+ cf,start,ok=chainproc(cf,start,last,kind,chainname,ck,lookuphash,chainlookup,chainlookupname,nil,sequence)
+ end
+ if not notmatchreplace[backtrackdisc] then
+ new,cnew,ok=chainproc(new,cnew,clast,kind,chainname,ck,lookuphash,chainlookup,chainlookupname,nil,sequence)
+ end
+ if post then
+ local tail=find_node_tail(post)
+ setfield(tail,"next",cf)
+ setfield(cf,"prev",tail)
+ else
+ post=cf
+ end
+ if replace then
+ local tail=find_node_tail(replace)
+ setfield(tail,"next",new)
+ setfield(new,"prev",tail)
+ else
+ replace=new
+ end
+ setfield(backtrackdisc,"post",post)
+ setfield(backtrackdisc,"replace",replace)
+ start=getprev(backtrackdisc)
+ sweephead[post]=getnext(clast)
+ sweephead[replace]=getnext(last)
else
- logwarning("%s: skipping char %s, class %a, rule %a, lookuptype %a",cref(kind,chainname),gref(char),class,ck[1],ck[2])
+ head,start,ok=chainproc(head,start,last,kind,chainname,ck,lookuphash,chainlookup,chainlookupname,nil,sequence)
end
+ return head,start,ok
end
-local quit_on_no_replacement=true
-directives.register("otf.chain.quitonnoreplacement",function(value)
- quit_on_no_replacement=value
-end)
local function normal_handle_contextchain(head,start,kind,chainname,contexts,sequence,lookuphash)
+ local sweepnode=sweepnode
+ local sweeptype=sweeptype
+ local diskseen=false
+ local checkdisc=getprev(head)
local flags=sequence.flags
local done=false
local skipmark=flags[1]
local skipligature=flags[2]
local skipbase=flags[3]
- local someskip=skipmark or skipligature or skipbase
- local markclass=sequence.markclass
+ local markclass=sequence.markclass
local skipped=false
- for k=1,#contexts do
+ for k=1,#contexts do
local match=true
local current=start
local last=start
@@ -12682,14 +13235,20 @@ local function normal_handle_contextchain(head,start,kind,chainname,contexts,seq
if s==1 then
match=getid(current)==glyph_code and getfont(current)==currentfont and getsubtype(current)<256 and seq[1][getchar(current)]
else
- local f,l=ck[4],ck[5]
+ local f=ck[4]
+ local l=ck[5]
if f==1 and f==l then
else
if f==l then
else
+ local discfound=nil
local n=f+1
last=getnext(last)
while n<=l do
+ if not last and (sweeptype=="post" or sweeptype=="replace") then
+ last=getnext(sweepnode)
+ sweeptype=nil
+ end
if last then
local id=getid(last)
if id==glyph_code then
@@ -12697,7 +13256,7 @@ local function normal_handle_contextchain(head,start,kind,chainname,contexts,seq
local char=getchar(last)
local ccd=descriptions[char]
if ccd then
- local class=ccd.class
+ local class=ccd.class or "base"
if class==skipmark or class==skipligature or class==skipbase or (markclass and class=="mark" and not markclass[char]) then
skipped=true
if trace_skips then
@@ -12710,18 +13269,76 @@ local function normal_handle_contextchain(head,start,kind,chainname,contexts,seq
end
n=n+1
else
- match=false
+ if discfound then
+ notmatchreplace[discfound]=true
+ match=not notmatchpre[discfound]
+ else
+ match=false
+ end
break
end
else
- match=false
+ if discfound then
+ notmatchreplace[discfound]=true
+ match=not notmatchpre[discfound]
+ else
+ match=false
+ end
break
end
else
- match=false
+ if discfound then
+ notmatchreplace[discfound]=true
+ match=not notmatchpre[discfound]
+ else
+ match=false
+ end
break
end
elseif id==disc_code then
+ diskseen=true
+ discfound=last
+ notmatchpre[last]=nil
+ notmatchpost[last]=true
+ notmatchreplace[last]=nil
+ local pre=getfield(last,"pre")
+ local replace=getfield(last,"replace")
+ if pre then
+ local n=n
+ while pre do
+ if seq[n][getchar(pre)] then
+ n=n+1
+ pre=getnext(pre)
+ if n>l then
+ break
+ end
+ else
+ notmatchpre[last]=true
+ break
+ end
+ end
+ if n<=l then
+ notmatchpre[last]=true
+ end
+ else
+ notmatchpre[last]=true
+ end
+ if replace then
+ while replace do
+ if seq[n][getchar(replace)] then
+ n=n+1
+ replace=getnext(replace)
+ if n>l then
+ break
+ end
+ else
+ notmatchreplace[last]=true
+ match=not notmatchpre[last]
+ break
+ end
+ end
+ match=not notmatchpre[last]
+ end
last=getnext(last)
else
match=false
@@ -12737,49 +13354,132 @@ local function normal_handle_contextchain(head,start,kind,chainname,contexts,seq
if match and f>1 then
local prev=getprev(start)
if prev then
- local n=f-1
- while n>=1 do
- if prev then
- local id=getid(prev)
- if id==glyph_code then
- if getfont(prev)==currentfont and getsubtype(prev)<256 then
- local char=getchar(prev)
- local ccd=descriptions[char]
- if ccd then
- local class=ccd.class
- if class==skipmark or class==skipligature or class==skipbase or (markclass and class=="mark" and not markclass[char]) then
- skipped=true
- if trace_skips then
- show_skip(kind,chainname,char,ck,class)
+ if prev==checkdisc and (sweeptype=="pre" or sweeptype=="replace") then
+ prev=getprev(sweepnode)
+ end
+ if prev then
+ local discfound=nil
+ local n=f-1
+ while n>=1 do
+ if prev then
+ local id=getid(prev)
+ if id==glyph_code then
+ if getfont(prev)==currentfont and getsubtype(prev)<256 then
+ local char=getchar(prev)
+ local ccd=descriptions[char]
+ if ccd then
+ local class=ccd.class
+ if class==skipmark or class==skipligature or class==skipbase or (markclass and class=="mark" and not markclass[char]) then
+ skipped=true
+ if trace_skips then
+ show_skip(kind,chainname,char,ck,class)
+ end
+ elseif seq[n][char] then
+ n=n -1
+ else
+ if discfound then
+ notmatchreplace[discfound]=true
+ match=not notmatchpost[discfound]
+ else
+ match=false
+ end
+ break
end
- elseif seq[n][char] then
- n=n -1
else
- match=false
+ if discfound then
+ notmatchreplace[discfound]=true
+ match=not notmatchpost[discfound]
+ else
+ match=false
+ end
break
end
else
- match=false
+ if discfound then
+ notmatchreplace[discfound]=true
+ match=not notmatchpost[discfound]
+ else
+ match=false
+ end
break
end
+ elseif id==disc_code then
+ diskseen=true
+ discfound=prev
+ notmatchpre[prev]=true
+ notmatchpost[prev]=nil
+ notmatchreplace[prev]=nil
+ local pre=getfield(prev,"pre")
+ local post=getfield(prev,"post")
+ local replace=getfield(prev,"replace")
+ if pre~=start and post~=start and replace~=start then
+ if post then
+ local n=n
+ local posttail=find_node_tail(post)
+ while posttail do
+ if seq[n][getchar(posttail)] then
+ n=n-1
+ if posttail==post then
+ break
+ else
+ posttail=getprev(posttail)
+ if n<1 then
+ break
+ end
+ end
+ else
+ notmatchpost[prev]=true
+ break
+ end
+ end
+ if n>=1 then
+ notmatchpost[prev]=true
+ end
+ else
+ notmatchpost[prev]=true
+ end
+ if replace then
+ local replacetail=find_node_tail(replace)
+ while replacetail do
+ if seq[n][getchar(replacetail)] then
+ n=n-1
+ if replacetail==replace then
+ break
+ else
+ replacetail=getprev(replacetail)
+ if n<1 then
+ break
+ end
+ end
+ else
+ notmatchreplace[prev]=true
+ match=not notmatchpost[prev]
+ break
+ end
+ end
+ if not match then
+ break
+ end
+ else
+ end
+ else
+ end
+ elseif seq[n][32] then
+ n=n -1
else
match=false
break
end
- elseif id==disc_code then
- elseif seq[n][32] then
- n=n -1
+ prev=getprev(prev)
+ elseif seq[n][32] then
+ n=n-1
else
match=false
break
end
- prev=getprev(prev)
- elseif seq[n][32] then
- n=n -1
- else
- match=false
- break
end
+ else
+ match=false
end
else
match=false
@@ -12787,7 +13487,13 @@ local function normal_handle_contextchain(head,start,kind,chainname,contexts,seq
end
if match and s>l then
local current=last and getnext(last)
+ if not current then
+ if sweeptype=="post" or sweeptype=="replace" then
+ current=getnext(sweepnode)
+ end
+ end
if current then
+ local discfound=nil
local n=l+1
while n<=s do
if current then
@@ -12803,21 +13509,82 @@ local function normal_handle_contextchain(head,start,kind,chainname,contexts,seq
if trace_skips then
show_skip(kind,chainname,char,ck,class)
end
- elseif seq[n][char] then
+ elseif seq[n][char] then
+ n=n+1
+ else
+ if discfound then
+ notmatchreplace[discfound]=true
+ match=not notmatchpre[discfound]
+ else
+ match=false
+ end
+ break
+ end
+ else
+ if discfound then
+ notmatchreplace[discfound]=true
+ match=not notmatchpre[discfound]
+ else
+ match=false
+ end
+ break
+ end
+ else
+ if discfound then
+ notmatchreplace[discfound]=true
+ match=not notmatchpre[discfound]
+ else
+ match=false
+ end
+ break
+ end
+ elseif id==disc_code then
+ diskseen=true
+ discfound=current
+ notmatchpre[current]=nil
+ notmatchpost[current]=true
+ notmatchreplace[current]=nil
+ local pre=getfield(current,"pre")
+ local replace=getfield(current,"replace")
+ if pre then
+ local n=n
+ while pre do
+ if seq[n][getchar(pre)] then
+ n=n+1
+ pre=getnext(pre)
+ if n>s then
+ break
+ end
+ else
+ notmatchpre[current]=true
+ break
+ end
+ end
+ if n<=s then
+ notmatchpre[current]=true
+ end
+ else
+ notmatchpre[current]=true
+ end
+ if replace then
+ while replace do
+ if seq[n][getchar(replace)] then
n=n+1
+ replace=getnext(replace)
+ if n>s then
+ break
+ end
else
- match=false
+ notmatchreplace[current]=true
+ match=notmatchpre[current]
break
end
- else
- match=false
+ end
+ if not match then
break
end
else
- match=false
- break
end
- elseif id==disc_code then
elseif seq[n][32] then
n=n+1
else
@@ -12838,6 +13605,7 @@ local function normal_handle_contextchain(head,start,kind,chainname,contexts,seq
end
end
if match then
+ local diskchain=diskseen or sweepnode
if trace_contexts then
local rule,lookuptype,f,l=ck[1],ck[2],ck[4],ck[5]
local char=getchar(start)
@@ -12856,10 +13624,14 @@ local function normal_handle_contextchain(head,start,kind,chainname,contexts,seq
local chainlookupname=chainlookups[1]
local chainlookup=lookuptable[chainlookupname]
if chainlookup then
- local cp=chainprocs[chainlookup.type]
- if cp then
+ local chainproc=chainprocs[chainlookup.type]
+ if chainproc then
local ok
- head,start,ok=cp(head,start,last,kind,chainname,ck,lookuphash,chainlookup,chainlookupname,nil,sequence)
+ if diskchain then
+ head,start,ok=chaindisk(head,start,last,kind,chainname,ck,lookuphash,chainlookup,chainlookupname,nil,sequence,chainproc)
+ else
+ head,start,ok=chainproc(head,start,last,kind,chainname,ck,lookuphash,chainlookup,chainlookupname,nil,sequence)
+ end
if ok then
done=true
end
@@ -12871,13 +13643,13 @@ local function normal_handle_contextchain(head,start,kind,chainname,contexts,seq
end
else
local i=1
- while true do
+ while start and true do
if skipped then
- while true do
+ while true do
local char=getchar(start)
local ccd=descriptions[char]
if ccd then
- local class=ccd.class
+ local class=ccd.class or "base"
if class==skipmark or class==skipligature or class==skipbase or (markclass and class=="mark" and not markclass[char]) then
start=getnext(start)
else
@@ -12893,26 +13665,33 @@ local function normal_handle_contextchain(head,start,kind,chainname,contexts,seq
if not chainlookup then
i=i+1
else
- local cp=chainmores[chainlookup.type]
- if not cp then
+ local chainproc=chainprocs[chainlookup.type]
+ if not chainproc then
logprocess("%s: %s is not yet supported",cref(kind,chainname,chainlookupname),chainlookup.type)
i=i+1
else
local ok,n
- head,start,ok,n=cp(head,start,last,kind,chainname,ck,lookuphash,chainlookup,chainlookupname,i,sequence)
+ if diskchain then
+ head,start,ok=chaindisk(head,start,last,kind,chainname,ck,lookuphash,chainlookup,chainlookupname,nil,sequence,chainproc)
+ else
+ head,start,ok,n=chainproc(head,start,last,kind,chainname,ck,lookuphash,chainlookup,chainlookupname,i,sequence)
+ end
if ok then
done=true
- i=i+(n or 1)
- else
- i=i+1
+ if n and n>1 then
+ if i+n>nofchainlookups then
+ break
+ else
+ end
+ end
end
+ i=i+1
end
end
- if i>nofchainlookups then
+ if i>nofchainlookups or not start then
break
elseif start then
start=getnext(start)
- else
end
end
end
@@ -12927,8 +13706,16 @@ local function normal_handle_contextchain(head,start,kind,chainname,contexts,seq
end
end
end
+ if done then
+ break
+ end
end
end
+ if diskseen then
+ notmatchpre={}
+ notmatchpost={}
+ notmatchreplace={}
+ end
return head,start,done
end
local verbose_handle_contextchain=function(font,...)
@@ -12999,7 +13786,7 @@ local function initialize(sequence,script,language,enabled)
local scripts=features[kind]
local languages=scripts[script] or scripts[wildcard]
if languages and (languages[language] or languages[wildcard]) then
- return { valid,autofeatures[kind] or false,sequence.chain or 0,kind,sequence }
+ return { valid,autofeatures[kind] or false,sequence,kind }
end
end
end
@@ -13039,6 +13826,175 @@ function otf.dataset(tfmdata,font)
end
return rl
end
+local function kernrun(disc,run)
+ if trace_kernruns then
+ report_run("kern")
+ end
+ local prev=getprev(disc)
+ local next=getnext(disc)
+ local pre=getfield(disc,"pre")
+ local post=getfield(disc,"post")
+ local replace=getfield(disc,"replace")
+ local prevmarks=prev
+ while prevmarks and getid(prevmarks)==glyph_code and marks[getchar(prevmarks)] and getfont(prevmarks)==currentfont and getsubtype(prevmarks)<256 do
+ prevmarks=getprev(prevmarks)
+ end
+ if prev and (pre or replace) and not (getid(prev)==glyph_code and getfont(prev)==currentfont and getsubtype(prev)<256) then
+ prev=false
+ end
+ if next and (post or replace) and not (getid(next)==glyph_code and getfont(next)==currentfont and getsubtype(next)<256) then
+ next=false
+ end
+ if not pre then
+ elseif prev then
+ local nest=getprev(pre)
+ setfield(pre,"prev",prev)
+ setfield(prev,"next",pre)
+ run(prevmarks,"preinjections")
+ setfield(pre,"prev",nest)
+ setfield(prev,"next",disc)
+ else
+ run(pre,"preinjections")
+ end
+ if not post then
+ elseif next then
+ local tail=find_node_tail(post)
+ setfield(tail,"next",next)
+ setfield(next,"prev",tail)
+ run(post,"postinjections",next)
+ setfield(tail,"next",nil)
+ setfield(next,"prev",disc)
+ else
+ run(post,"postinjections")
+ end
+ if not replace and prev and next then
+ setfield(prev,"next",next)
+ setfield(next,"prev",prev)
+ run(prevmarks,"injections",next)
+ setfield(prev,"next",disc)
+ setfield(next,"prev",disc)
+ elseif prev and next then
+ local tail=find_node_tail(replace)
+ local nest=getprev(replace)
+ setfield(replace,"prev",prev)
+ setfield(prev,"next",replace)
+ setfield(tail,"next",next)
+ setfield(next,"prev",tail)
+ run(prevmarks,"replaceinjections",next)
+ setfield(replace,"prev",nest)
+ setfield(prev,"next",disc)
+ setfield(tail,"next",nil)
+ setfield(next,"prev",disc)
+ elseif prev then
+ local nest=getprev(replace)
+ setfield(replace,"prev",prev)
+ setfield(prev,"next",replace)
+ run(prevmarks,"replaceinjections")
+ setfield(replace,"prev",nest)
+ setfield(prev,"next",disc)
+ elseif next then
+ local tail=find_node_tail(replace)
+ setfield(tail,"next",next)
+ setfield(next,"prev",tail)
+ run(replace,"replaceinjections",next)
+ setfield(tail,"next",nil)
+ setfield(next,"prev",disc)
+ else
+ run(replace,"replaceinjections")
+ end
+end
+local function comprun(disc,run)
+ if trace_compruns then
+ report_run("comp: %s",languages.serializediscretionary(disc))
+ end
+ local pre=getfield(disc,"pre")
+ if pre then
+ sweepnode=disc
+ sweeptype="pre"
+ local new,done=run(pre)
+ if done then
+ setfield(disc,"pre",new)
+ end
+ end
+ local post=getfield(disc,"post")
+ if post then
+ sweepnode=disc
+ sweeptype="post"
+ local new,done=run(post)
+ if done then
+ setfield(disc,"post",new)
+ end
+ end
+ local replace=getfield(disc,"replace")
+ if replace then
+ sweepnode=disc
+ sweeptype="replace"
+ local new,done=run(replace)
+ if done then
+ setfield(disc,"replace",new)
+ end
+ end
+ sweepnode=nil
+ sweeptype=nil
+end
+local function testrun(disc,trun,crun)
+ local next=getnext(disc)
+ if next then
+ local replace=getfield(disc,"replace")
+ if replace then
+ local prev=getprev(disc)
+ if prev then
+ local tail=find_node_tail(replace)
+ setfield(tail,"next",next)
+ setfield(next,"prev",tail)
+ if trun(replace,next) then
+ setfield(disc,"replace",nil)
+ setfield(prev,"next",replace)
+ setfield(replace,"prev",prev)
+ setfield(next,"prev",tail)
+ setfield(tail,"next",next)
+ setfield(disc,"prev",nil)
+ setfield(disc,"next",nil)
+ flush_node_list(disc)
+ return replace
+ else
+ setfield(tail,"next",nil)
+ setfield(next,"prev",disc)
+ end
+ else
+ end
+ else
+ end
+ else
+ end
+ comprun(disc,crun)
+ return next
+end
+local function discrun(disc,drun,krun)
+ local next=getnext(disc)
+ local prev=getprev(disc)
+ if trace_discruns then
+ report_run("disc")
+ end
+ if next and prev then
+ setfield(prev,"next",next)
+ drun(prev)
+ setfield(prev,"next",disc)
+ end
+ local pre=getfield(disc,"pre")
+ if not pre then
+ elseif prev then
+ local nest=getprev(pre)
+ setfield(pre,"prev",prev)
+ setfield(prev,"next",pre)
+ krun(prev,"preinjections")
+ setfield(pre,"prev",nest)
+ setfield(prev,"next",disc)
+ else
+ krun(pre,"preinjections")
+ end
+ return next
+end
local function featuresprocessor(head,font,attr)
local lookuphash=lookuphashes[font]
if not lookuphash then
@@ -13059,23 +14015,25 @@ local function featuresprocessor(head,font,attr)
lookuptags=resources.lookuptags
currentfont=font
rlmode=0
+ sweephead={}
local sequences=resources.sequences
local done=false
local datasets=otf.dataset(tfmdata,font,attr)
local dirstack={}
for s=1,#datasets do
local dataset=datasets[s]
- featurevalue=dataset[1]
- local sequence=dataset[5]
+ featurevalue=dataset[1]
+ local attribute=dataset[2]
+ local sequence=dataset[3]
+ local kind=dataset[4]
local rlparmode=0
local topstack=0
local success=false
- local attribute=dataset[2]
- local chain=dataset[3]
local typ=sequence.type
+ local gpossing=typ=="gpos_single" or typ=="gpos_pair"
local subtables=sequence.subtables
- if chain<0 then
- local handler=handlers[typ]
+ local handler=handlers[typ]
+ if typ=="gsub_reversecontextchain" then
local start=find_node_tail(head)
while start do
local id=getid(start)
@@ -13088,13 +14046,14 @@ local function featuresprocessor(head,font,attr)
a=true
end
if a then
+ local char=getchar(start)
for i=1,#subtables do
local lookupname=subtables[i]
local lookupcache=lookuphash[lookupname]
if lookupcache then
- local lookupmatch=lookupcache[getchar(start)]
+ local lookupmatch=lookupcache[char]
if lookupmatch then
- head,start,success=handler(head,start,dataset[4],lookupname,lookupmatch,sequence,lookuphash,i)
+ head,start,success=handler(head,start,kind,lookupname,lookupmatch,sequence,lookuphash,i)
if success then
break
end
@@ -13115,7 +14074,6 @@ local function featuresprocessor(head,font,attr)
end
end
else
- local handler=handlers[typ]
local ns=#subtables
local start=head
rlmode=0
@@ -13125,12 +14083,19 @@ local function featuresprocessor(head,font,attr)
if not lookupcache then
report_missing_cache(typ,lookupname)
else
- local function subrun(start)
- local head=start
+ local function c_run(head)
local done=false
+ local start=sweephead[head]
+ if start then
+ sweephead[head]=nil
+ else
+ start=head
+ end
while start do
local id=getid(start)
- if id==glyph_code and getfont(start)==font and getsubtype(start)<256 then
+ if id~=glyph_code then
+ start=getnext(start)
+ elseif getfont(start)==font and getsubtype(start)<256 then
local a=getattr(start,0)
if a then
a=(a==attr) and (not attribute or getprop(start,a_state)==attribute)
@@ -13141,7 +14106,7 @@ local function featuresprocessor(head,font,attr)
local lookupmatch=lookupcache[getchar(start)]
if lookupmatch then
local ok
- head,start,ok=handler(head,start,dataset[4],lookupname,lookupmatch,sequence,lookuphash,1)
+ head,start,ok=handler(head,start,kind,lookupname,lookupmatch,sequence,lookuphash,1)
if ok then
done=true
end
@@ -13151,43 +14116,98 @@ local function featuresprocessor(head,font,attr)
start=getnext(start)
end
else
- start=getnext(start)
+ return head,false
end
end
if done then
- success=true
- return head
+ success=true
end
+ return head,done
end
- local function kerndisc(disc)
- local prev=getprev(disc)
- local next=getnext(disc)
- if prev and next then
- setfield(prev,"next",next)
- local a=getattr(prev,0)
- if a then
- a=(a==attr) and (not attribute or getprop(prev,a_state)==attribute)
+ local function t_run(start,stop)
+ while start~=stop do
+ local id=getid(start)
+ if id==glyph_code and getfont(start)==font and getsubtype(start)<256 then
+ local a=getattr(start,0)
+ if a then
+ a=(a==attr) and (not attribute or getprop(start,a_state)==attribute)
+ else
+ a=not attribute or getprop(start,a_state)==attribute
+ end
+ if a then
+ local lookupmatch=lookupcache[getchar(start)]
+ if lookupmatch then
+ local s=getnext(start)
+ local l=nil
+ while s do
+ local lg=lookupmatch[getchar(s)]
+ if lg then
+ l=lg
+ s=getnext(s)
+ else
+ break
+ end
+ end
+ if l and l.ligature then
+ return true
+ end
+ end
+ end
+ start=getnext(start)
else
- a=not attribute or getprop(prev,a_state)==attribute
+ break
end
- if a then
- local lookupmatch=lookupcache[getchar(prev)]
- if lookupmatch then
- local h,d,ok=handler(head,prev,dataset[4],lookupname,lookupmatch,sequence,lookuphash,1)
- if ok then
- done=true
- success=true
+ end
+ end
+ local function d_run(prev)
+ local a=getattr(prev,0)
+ if a then
+ a=(a==attr) and (not attribute or getprop(prev,a_state)==attribute)
+ else
+ a=not attribute or getprop(prev,a_state)==attribute
+ end
+ if a then
+ local lookupmatch=lookupcache[getchar(prev)]
+ if lookupmatch then
+ local h,d,ok=handler(head,prev,kind,lookupname,lookupmatch,sequence,lookuphash,1)
+ if ok then
+ done=true
+ success=true
+ end
+ end
+ end
+ end
+ local function k_run(sub,injection,last)
+ local a=getattr(sub,0)
+ if a then
+ a=(a==attr) and (not attribute or getprop(sub,a_state)==attribute)
+ else
+ a=not attribute or getprop(sub,a_state)==attribute
+ end
+ if a then
+ for n in traverse_nodes(sub) do
+ if n==last then
+ break
+ end
+ local id=getid(n)
+ if id==glyph_code then
+ local lookupmatch=lookupcache[getchar(n)]
+ if lookupmatch then
+ local h,d,ok=handler(sub,n,kind,lookupname,lookupmatch,sequence,lookuphash,1,injection)
+ if ok then
+ done=true
+ success=true
+ end
end
+ else
end
end
- setfield(prev,"next",disc)
end
- return next
end
while start do
local id=getid(start)
if id==glyph_code then
- if getfont(start)==font and getsubtype(start)<256 then
+ if getfont(start)==font and getsubtype(start)<256 then
local a=getattr(start,0)
if a then
a=(a==attr) and (not attribute or getprop(start,a_state)==attribute)
@@ -13195,13 +14215,18 @@ local function featuresprocessor(head,font,attr)
a=not attribute or getprop(start,a_state)==attribute
end
if a then
- local lookupmatch=lookupcache[getchar(start)]
+ local char=getchar(start)
+ local lookupmatch=lookupcache[char]
if lookupmatch then
local ok
- head,start,ok=handler(head,start,dataset[4],lookupname,lookupmatch,sequence,lookuphash,1)
+ head,start,ok=handler(head,start,kind,lookupname,lookupmatch,sequence,lookuphash,1)
if ok then
success=true
+ elseif gpossing and zwnjruns and char==zwnj then
+ discrun(start,d_run)
end
+ elseif gpossing and zwnjruns and char==zwnj then
+ discrun(start,d_run)
end
if start then start=getnext(start) end
else
@@ -13211,41 +14236,30 @@ local function featuresprocessor(head,font,attr)
start=getnext(start)
end
elseif id==disc_code then
- if getsubtype(start)==discretionary_code then
- local pre=getfield(start,"pre")
- if pre then
- local new=subrun(pre)
- if new then setfield(start,"pre",new) end
- end
- local post=getfield(start,"post")
- if post then
- local new=subrun(post)
- if new then setfield(start,"post",new) end
- end
- local replace=getfield(start,"replace")
- if replace then
- local new=subrun(replace)
- if new then setfield(start,"replace",new) end
- end
-elseif typ=="gpos_single" or typ=="gpos_pair" then
- kerndisc(start)
+ if gpossing then
+ kernrun(start,k_run)
+ start=getnext(start)
+ elseif typ=="gsub_ligature" then
+ start=testrun(start,t_run,c_run)
+ else
+ comprun(start,c_run)
+ start=getnext(start)
end
- start=getnext(start)
elseif id==whatsit_code then
local subtype=getsubtype(start)
if subtype==dir_code then
local dir=getfield(start,"dir")
- if dir=="+TRT" or dir=="+TLT" then
+ if dir=="+TLT" then
topstack=topstack+1
dirstack[topstack]=dir
- elseif dir=="-TRT" or dir=="-TLT" then
- topstack=topstack-1
- end
- local newdir=dirstack[topstack]
- if newdir=="+TRT" then
- rlmode=-1
- elseif newdir=="+TLT" then
rlmode=1
+ elseif dir=="+TRT" then
+ topstack=topstack+1
+ dirstack[topstack]=dir
+ rlmode=-1
+ elseif dir=="-TLT" or dir=="-TRT" then
+ topstack=topstack-1
+ rlmode=dirstack[topstack]=="+TRT" and -1 or 1
else
rlmode=rlparmode
end
@@ -13275,12 +14289,19 @@ elseif typ=="gpos_single" or typ=="gpos_pair" then
end
end
else
- local function subrun(start)
- local head=start
+ local function c_run(head)
local done=false
+ local start=sweephead[head]
+ if start then
+ sweephead[head]=nil
+ else
+ start=head
+ end
while start do
local id=getid(start)
- if id==glyph_code and getfont(start)==font and getsubtype(start)<256 then
+ if id~=glyph_code then
+ start=getnext(start)
+ elseif getfont(start)==font and getsubtype(start)<256 then
local a=getattr(start,0)
if a then
a=(a==attr) and (not attribute or getprop(start,a_state)==attribute)
@@ -13288,14 +14309,15 @@ elseif typ=="gpos_single" or typ=="gpos_pair" then
a=not attribute or getprop(start,a_state)==attribute
end
if a then
+ local char=getchar(start)
for i=1,ns do
local lookupname=subtables[i]
local lookupcache=lookuphash[lookupname]
if lookupcache then
- local lookupmatch=lookupcache[getchar(start)]
+ local lookupmatch=lookupcache[char]
if lookupmatch then
local ok
- head,start,ok=handler(head,start,dataset[4],lookupname,lookupmatch,sequence,lookuphash,i)
+ head,start,ok=handler(head,start,kind,lookupname,lookupmatch,sequence,lookuphash,i)
if ok then
done=true
break
@@ -13312,46 +14334,120 @@ elseif typ=="gpos_single" or typ=="gpos_pair" then
start=getnext(start)
end
else
- start=getnext(start)
+ return head,false
end
end
if done then
success=true
- return head
end
+ return head,done
end
- local function kerndisc(disc)
- local prev=getprev(disc)
- local next=getnext(disc)
- if prev and next then
- setfield(prev,"next",next)
- local a=getattr(prev,0)
- if a then
- a=(a==attr) and (not attribute or getprop(prev,a_state)==attribute)
- else
- a=not attribute or getprop(prev,a_state)==attribute
+ local function d_run(prev)
+ local a=getattr(prev,0)
+ if a then
+ a=(a==attr) and (not attribute or getprop(prev,a_state)==attribute)
+ else
+ a=not attribute or getprop(prev,a_state)==attribute
+ end
+ if a then
+ local char=getchar(prev)
+ for i=1,ns do
+ local lookupname=subtables[i]
+ local lookupcache=lookuphash[lookupname]
+ if lookupcache then
+ local lookupmatch=lookupcache[char]
+ if lookupmatch then
+ local h,d,ok=handler(head,prev,kind,lookupname,lookupmatch,sequence,lookuphash,i)
+ if ok then
+ done=true
+ break
+ end
+ end
+ else
+ report_missing_cache(typ,lookupname)
+ end
end
- if a then
- for i=1,ns do
- local lookupname=subtables[i]
- local lookupcache=lookuphash[lookupname]
- if lookupcache then
- local lookupmatch=lookupcache[getchar(prev)]
- if lookupmatch then
- local h,d,ok=handler(head,prev,dataset[4],lookupname,lookupmatch,sequence,lookuphash,i)
- if ok then
- done=true
- break
+ end
+ end
+ local function k_run(sub,injection,last)
+ local a=getattr(sub,0)
+ if a then
+ a=(a==attr) and (not attribute or getprop(sub,a_state)==attribute)
+ else
+ a=not attribute or getprop(sub,a_state)==attribute
+ end
+ if a then
+ for n in traverse_nodes(sub) do
+ if n==last then
+ break
+ end
+ local id=getid(n)
+ if id==glyph_code then
+ local char=getchar(n)
+ for i=1,ns do
+ local lookupname=subtables[i]
+ local lookupcache=lookuphash[lookupname]
+ if lookupcache then
+ local lookupmatch=lookupcache[char]
+ if lookupmatch then
+ local h,d,ok=handler(head,n,kind,lookupname,lookupmatch,sequence,lookuphash,i,injection)
+ if ok then
+ done=true
+ break
+ end
end
+ else
+ report_missing_cache(typ,lookupname)
+ end
+ end
+ else
+ end
+ end
+ end
+ end
+ local function t_run(start,stop)
+ while start~=stop do
+ local id=getid(start)
+ if id==glyph_code and getfont(start)==font and getsubtype(start)<256 then
+ local a=getattr(start,0)
+ if a then
+ a=(a==attr) and (not attribute or getprop(start,a_state)==attribute)
+ else
+ a=not attribute or getprop(start,a_state)==attribute
+ end
+ if a then
+ local char=getchar(start)
+ for i=1,ns do
+ local lookupname=subtables[i]
+ local lookupcache=lookuphash[lookupname]
+ if lookupcache then
+ local lookupmatch=lookupcache[char]
+ if lookupmatch then
+ local s=getnext(start)
+ local l=nil
+ while s do
+ local lg=lookupmatch[getchar(s)]
+ if lg then
+ l=lg
+ s=getnext(s)
+ else
+ break
+ end
+ end
+ if l and l.ligature then
+ return true
+ end
+ end
+ else
+ report_missing_cache(typ,lookupname)
end
- else
- report_missing_cache(typ,lookupname)
end
end
+ start=getnext(start)
+ else
+ break
end
- setfield(prev,"next",disc)
end
- return next
end
while start do
local id=getid(start)
@@ -13368,16 +14464,21 @@ elseif typ=="gpos_single" or typ=="gpos_pair" then
local lookupname=subtables[i]
local lookupcache=lookuphash[lookupname]
if lookupcache then
- local lookupmatch=lookupcache[getchar(start)]
+ local char=getchar(start)
+ local lookupmatch=lookupcache[char]
if lookupmatch then
local ok
- head,start,ok=handler(head,start,dataset[4],lookupname,lookupmatch,sequence,lookuphash,i)
+ head,start,ok=handler(head,start,kind,lookupname,lookupmatch,sequence,lookuphash,i)
if ok then
success=true
break
elseif not start then
break
+ elseif gpossing and zwnjruns and char==zwnj then
+ discrun(start,d_run)
end
+ elseif gpossing and zwnjruns and char==zwnj then
+ discrun(start,d_run)
end
else
report_missing_cache(typ,lookupname)
@@ -13391,41 +14492,30 @@ elseif typ=="gpos_single" or typ=="gpos_pair" then
start=getnext(start)
end
elseif id==disc_code then
- if getsubtype(start)==discretionary_code then
- local pre=getfield(start,"pre")
- if pre then
- local new=subrun(pre)
- if new then setfield(start,"pre",new) end
- end
- local post=getfield(start,"post")
- if post then
- local new=subrun(post)
- if new then setfield(start,"post",new) end
- end
- local replace=getfield(start,"replace")
- if replace then
- local new=subrun(replace)
- if new then setfield(start,"replace",new) end
- end
-elseif typ=="gpos_single" or typ=="gpos_pair" then
- kerndisc(start)
+ if gpossing then
+ kernrun(start,k_run)
+ start=getnext(start)
+ elseif typ=="gsub_ligature" then
+ start=testrun(start,t_run,c_run)
+ else
+ comprun(start,c_run)
+ start=getnext(start)
end
- start=getnext(start)
elseif id==whatsit_code then
local subtype=getsubtype(start)
if subtype==dir_code then
local dir=getfield(start,"dir")
- if dir=="+TRT" or dir=="+TLT" then
+ if dir=="+TLT" then
topstack=topstack+1
dirstack[topstack]=dir
- elseif dir=="-TRT" or dir=="-TLT" then
- topstack=topstack-1
- end
- local newdir=dirstack[topstack]
- if newdir=="+TRT" then
- rlmode=-1
- elseif newdir=="+TLT" then
rlmode=1
+ elseif dir=="+TRT" then
+ topstack=topstack+1
+ dirstack[topstack]=dir
+ rlmode=-1
+ elseif dir=="-TLT" or dir=="-TRT" then
+ topstack=topstack-1
+ rlmode=dirstack[topstack]=="+TRT" and -1 or 1
else
rlmode=rlparmode
end
@@ -13473,43 +14563,46 @@ local function generic(lookupdata,lookupname,unicode,lookuphash)
lookuphash[lookupname]={ [unicode]=lookupdata }
end
end
+local function ligature(lookupdata,lookupname,unicode,lookuphash)
+ local target=lookuphash[lookupname]
+ if not target then
+ target={}
+ lookuphash[lookupname]=target
+ end
+ for i=1,#lookupdata do
+ local li=lookupdata[i]
+ local tu=target[li]
+ if not tu then
+ tu={}
+ target[li]=tu
+ end
+ target=tu
+ end
+ target.ligature=unicode
+end
+local function pair(lookupdata,lookupname,unicode,lookuphash)
+ local target=lookuphash[lookupname]
+ if not target then
+ target={}
+ lookuphash[lookupname]=target
+ end
+ local others=target[unicode]
+ local paired=lookupdata[1]
+ if others then
+ others[paired]=lookupdata
+ else
+ others={ [paired]=lookupdata }
+ target[unicode]=others
+ end
+end
local action={
substitution=generic,
multiple=generic,
alternate=generic,
position=generic,
- ligature=function(lookupdata,lookupname,unicode,lookuphash)
- local target=lookuphash[lookupname]
- if not target then
- target={}
- lookuphash[lookupname]=target
- end
- for i=1,#lookupdata do
- local li=lookupdata[i]
- local tu=target[li]
- if not tu then
- tu={}
- target[li]=tu
- end
- target=tu
- end
- target.ligature=unicode
- end,
- pair=function(lookupdata,lookupname,unicode,lookuphash)
- local target=lookuphash[lookupname]
- if not target then
- target={}
- lookuphash[lookupname]=target
- end
- local others=target[unicode]
- local paired=lookupdata[1]
- if others then
- others[paired]=lookupdata
- else
- others={ [paired]=lookupdata }
- target[unicode]=others
- end
- end,
+ ligature=ligature,
+ pair=pair,
+ kern=pair,
}
local function prepare_lookups(tfmdata)
local rawdata=tfmdata.shared.rawdata
@@ -13520,13 +14613,14 @@ local function prepare_lookups(tfmdata)
local lookuptypes=resources.lookuptypes
local characters=tfmdata.characters
local descriptions=tfmdata.descriptions
+ local duplicates=resources.duplicates
for unicode,character in next,characters do
local description=descriptions[unicode]
if description then
local lookups=description.slookups
if lookups then
for lookupname,lookupdata in next,lookups do
- action[lookuptypes[lookupname]](lookupdata,lookupname,unicode,lookuphash)
+ action[lookuptypes[lookupname]](lookupdata,lookupname,unicode,lookuphash,duplicates)
end
end
local lookups=description.mlookups
@@ -13535,7 +14629,7 @@ local function prepare_lookups(tfmdata)
local lookuptype=lookuptypes[lookupname]
for l=1,#lookuplist do
local lookupdata=lookuplist[l]
- action[lookuptype](lookupdata,lookupname,unicode,lookuphash)
+ action[lookuptype](lookupdata,lookupname,unicode,lookuphash,duplicates)
end
end
end
@@ -13557,7 +14651,7 @@ local function prepare_lookups(tfmdata)
for name,anchor in next,anchors do
local lookups=anchor_to_lookup[name]
if lookups then
- for lookup,_ in next,lookups do
+ for lookup in next,lookups do
local target=lookuphash[lookup]
if target then
target[unicode]=anchors
@@ -13639,7 +14733,7 @@ local function prepare_contextchains(tfmdata)
if sequence[1] then
nt=nt+1
t[nt]={ nofrules,lookuptype,sequence,start,stop,rule.lookups,replacements }
- for unic,_ in next,sequence[start] do
+ for unic in next,sequence[start] do
local cu=contexts[unic]
if not cu then
contexts[unic]=t
@@ -13698,9 +14792,8 @@ if not modules then modules={} end modules ['font-otp']={
copyright="PRAGMA ADE / ConTeXt Development Team",
license="see context related readme files"
}
-local next,type=next,type
+local next,type,tostring=next,type,tostring
local sort,concat=table.sort,table.concat
-local sortedhash=table.sortedhash
local trace_packing=false trackers.register("otf.packing",function(v) trace_packing=v end)
local trace_loading=false trackers.register("otf.loading",function(v) trace_loading=v end)
local report_otf=logs.reporter("fonts","otf loading")
@@ -14676,10 +15769,11 @@ end
function resolvers.name(specification)
local resolve=fonts.names.resolve
if resolve then
- local resolved,sub=resolve(specification.name,specification.sub,specification)
+ local resolved,sub,subindex=resolve(specification.name,specification.sub,specification)
if resolved then
specification.resolved=resolved
specification.sub=sub
+ specification.subindex=subindex
local suffix=lower(suffixonly(resolved))
if fonts.formats[suffix] then
specification.forced=suffix
@@ -14696,10 +15790,11 @@ end
function resolvers.spec(specification)
local resolvespec=fonts.names.resolvespec
if resolvespec then
- local resolved,sub=resolvespec(specification.name,specification.sub,specification)
+ local resolved,sub,subindex=resolvespec(specification.name,specification.sub,specification)
if resolved then
specification.resolved=resolved
specification.sub=sub
+ specification.subindex=subindex
specification.forced=lower(suffixonly(resolved))
specification.forcedname=resolved
specification.name=removesuffix(resolved)
@@ -15341,12 +16436,30 @@ function nodes.handlers.nodepass(head)
local range=basefonts[i]
local start=range[1]
local stop=range[2]
- if stop then
- start,stop=ligaturing(start,stop)
- start,stop=kerning(start,stop)
- elseif start then
- start=ligaturing(start)
- start=kerning(start)
+ if start or stop then
+ local prev=nil
+ local next=nil
+ local front=start==head
+ if stop then
+ next=stop.next
+ start,stop=ligaturing(start,stop)
+ start,stop=kerning(start,stop)
+ elseif start then
+ prev=start.prev
+ start=ligaturing(start)
+ start=kerning(start)
+ end
+ if prev then
+ start.prev=prev
+ prev.next=start
+ end
+ if next then
+ stop.next=next
+ next.prev=stop
+ end
+ if front then
+ head=start
+ end
end
end
end
@@ -15356,7 +16469,7 @@ function nodes.handlers.nodepass(head)
end
end
function nodes.handlers.basepass(head)
- if not basepass then
+ if basepass then
head=ligaturing(head)
head=kerning(head)
end
--
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