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-rw-r--r--src/fontloader/misc/fontloader-font-con.lua31
-rw-r--r--src/fontloader/misc/fontloader-font-oti.lua4
-rw-r--r--src/fontloader/misc/fontloader-font-otl.lua2
-rw-r--r--src/fontloader/misc/fontloader-font-otr.lua130
-rw-r--r--src/fontloader/misc/fontloader-font-ots.lua108
-rw-r--r--src/fontloader/misc/fontloader-util-fil.lua42
6 files changed, 269 insertions, 48 deletions
diff --git a/src/fontloader/misc/fontloader-font-con.lua b/src/fontloader/misc/fontloader-font-con.lua
index b3e506b..18f2217 100644
--- a/src/fontloader/misc/fontloader-font-con.lua
+++ b/src/fontloader/misc/fontloader-font-con.lua
@@ -447,12 +447,16 @@ function constructors.scale(tfmdata,specification)
local haskerns = properties.haskerns or properties.mode == "base" -- we can have afm in node mode
local hasligatures = properties.hasligatures or properties.mode == "base" -- we can have afm in node mode
local realdimensions = properties.realdimensions
+ local writingmode = properties.writingmode or "horizontal"
+ local identity = properties.identity or "horizontal"
--
if changed and not next(changed) then
changed = false
end
--
- target.type = isvirtual and "virtual" or "real"
+ target.type = isvirtual and "virtual" or "real"
+ target.writingmode = writingmode == "vertical" and "vertical" or "horizontal"
+ target.identity = identity == "vertical" and "vertical" or "horizontal"
--
target.postprocessors = tfmdata.postprocessors
--
@@ -894,6 +898,8 @@ function constructors.finalize(tfmdata)
cidinfo = tfmdata.cidinfo or nil,
format = tfmdata.format or "type1",
direction = tfmdata.direction or 0,
+ writingmode = tfmdata.writingmode or "horizontal",
+ identity = tfmdata.identity or "horizontal",
}
end
if not tfmdata.resources then
@@ -1091,7 +1097,11 @@ end)
do
- local function setindeed(mode,target,group,name,action,position)
+ local function setindeed(mode,source,target,group,name,position)
+ local action = source[mode]
+ if not action then
+ return
+ end
local t = target[mode]
if not t then
report_defining("fatal error in setting feature %a, group %a, mode %a",name,group,mode)
@@ -1122,15 +1132,10 @@ do
report_defining("fatal source error in setting feature %a, group %a",name,group)
os.exit()
end
- local node = source.node
- local base = source.base
local position = source.position
- if node then
- setindeed("node",target,group,name,node,position)
- end
- if base then
- setindeed("base",target,group,name,base,position)
- end
+ setindeed("node",source,target,group,name,position)
+ setindeed("base",source,target,group,name,position)
+ setindeed("plug",source,target,group,name,position)
end
local function register(where,specification)
@@ -1197,9 +1202,9 @@ do
defaults = { },
descriptions = tables and tables.features or { },
used = statistics and statistics.usedfeatures or { },
- initializers = { base = { }, node = { } },
- processors = { base = { }, node = { } },
- manipulators = { base = { }, node = { } },
+ initializers = { base = { }, node = { }, plug = { } },
+ processors = { base = { }, node = { }, plug = { } },
+ manipulators = { base = { }, node = { }, plug = { } },
}
features.register = function(specification) return register(features,specification) end
handler.features = features -- will also become hidden
diff --git a/src/fontloader/misc/fontloader-font-oti.lua b/src/fontloader/misc/fontloader-font-oti.lua
index 5e812bb..e10a261 100644
--- a/src/fontloader/misc/fontloader-font-oti.lua
+++ b/src/fontloader/misc/fontloader-font-oti.lua
@@ -72,6 +72,7 @@ registerotffeature {
initializers = {
base = setmode,
node = setmode,
+ plug = setmode,
}
}
@@ -81,6 +82,7 @@ registerotffeature {
initializers = {
base = setlanguage,
node = setlanguage,
+ plug = setlanguage,
}
}
@@ -90,6 +92,7 @@ registerotffeature {
initializers = {
base = setscript,
node = setscript,
+ plug = setscript,
}
}
@@ -157,4 +160,3 @@ function otffeatures.checkeddefaultlanguage(featuretype,autolanguage,languages)
end
end
end
-
diff --git a/src/fontloader/misc/fontloader-font-otl.lua b/src/fontloader/misc/fontloader-font-otl.lua
index cf6603f..d4eaed7 100644
--- a/src/fontloader/misc/fontloader-font-otl.lua
+++ b/src/fontloader/misc/fontloader-font-otl.lua
@@ -675,7 +675,7 @@ local function getgsub(tfmdata,k,kind,value)
local properties = tfmdata.properties
local validlookups, lookuplist = otf.collectlookups(rawdata,kind,properties.script,properties.language)
if validlookups then
- local choice = tonumber(value) or 1 -- no random here (yet)
+ -- local choice = tonumber(value) or 1 -- no random here (yet)
for i=1,#lookuplist do
local lookup = lookuplist[i]
local steps = lookup.steps
diff --git a/src/fontloader/misc/fontloader-font-otr.lua b/src/fontloader/misc/fontloader-font-otr.lua
index 9cdbc3d..2b18c1e 100644
--- a/src/fontloader/misc/fontloader-font-otr.lua
+++ b/src/fontloader/misc/fontloader-font-otr.lua
@@ -975,7 +975,7 @@ readers.head = function(f,fontdata)
end
-- This table is a rather simple one. No treatment of values is needed here. Most
--- variables are not used but nofhmetrics is quite important.
+-- variables are not used but nofmetrics is quite important.
readers.hhea = function(f,fontdata,specification)
if specification.details then
@@ -983,7 +983,7 @@ readers.hhea = function(f,fontdata,specification)
if datatable then
setposition(f,datatable.offset)
fontdata.horizontalheader = {
- version = readfixed(f),
+ version = readfixed(f), -- two ushorts: major minor
ascender = readfword(f),
descender = readfword(f),
linegap = readfword(f),
@@ -999,11 +999,45 @@ readers.hhea = function(f,fontdata,specification)
reserved_3 = readshort(f),
reserved_4 = readshort(f),
metricdataformat = readshort(f),
- nofhmetrics = readushort(f),
+ nofmetrics = readushort(f),
}
else
fontdata.horizontalheader = {
- nofhmetrics = 0,
+ nofmetrics = 0,
+ }
+ end
+ end
+end
+
+readers.vhea = function(f,fontdata,specification)
+ if specification.details then
+ local datatable = fontdata.tables.vhea
+ if datatable then
+ setposition(f,datatable.offset)
+ local version = readfixed(f)
+ fontdata.verticalheader = {
+ version = version,
+ ascender = readfword(f),
+ descender = readfword(f),
+ linegap = readfword(f),
+ maxadvanceheight = readufword(f),
+ mintopsidebearing = readfword(f),
+ minbottomsidebearing = readfword(f),
+ maxextent = readfword(f),
+ caretsloperise = readshort(f),
+ caretsloperun = readshort(f),
+ caretoffset = readshort(f),
+ reserved_1 = readshort(f),
+ reserved_2 = readshort(f),
+ reserved_3 = readshort(f),
+ reserved_4 = readshort(f),
+ metricdataformat = readshort(f),
+ nofmetrics = readushort(f),
+ }
+-- inspect(fontdata.verticalheader)
+ else
+ fontdata.verticalheader = {
+ nofmetrics = 0,
}
end
end
@@ -1064,11 +1098,12 @@ readers.hmtx = function(f,fontdata,specification)
local datatable = fontdata.tables.hmtx
if datatable then
setposition(f,datatable.offset)
- local nofmetrics = fontdata.horizontalheader.nofhmetrics
- local glyphs = fontdata.glyphs
- local nofglyphs = fontdata.nofglyphs
- local width = 0 -- advance
- local leftsidebearing = 0
+ local horizontalheader = fontdata.horizontalheader
+ local nofmetrics = horizontalheader.nofmetrics
+ local glyphs = fontdata.glyphs
+ local nofglyphs = fontdata.nofglyphs
+ local width = 0 -- advance
+ local leftsidebearing = 0
for i=0,nofmetrics-1 do
local glyph = glyphs[i]
width = readshort(f)
@@ -1095,6 +1130,53 @@ readers.hmtx = function(f,fontdata,specification)
end
end
+readers.vmtx = function(f,fontdata,specification)
+ if specification.glyphs then
+ local datatable = fontdata.tables.vmtx
+ if datatable then
+ setposition(f,datatable.offset)
+ local verticalheader = fontdata.verticalheader
+ local nofmetrics = verticalheader.nofmetrics
+ local glyphs = fontdata.glyphs
+ local nofglyphs = fontdata.nofglyphs
+ local vheight = 0
+ local vdefault = verticalheader.ascender + verticalheader.descender
+ local topsidebearing = 0
+ for i=0,nofmetrics-1 do
+ local glyph = glyphs[i]
+ vheight = readshort(f)
+ topsidebearing = readshort(f)
+ if vheight ~= 0 and vheight ~= vdefault then
+ glyph.vheight = vheight
+ end
+ -- if topsidebearing ~= 0 then
+ -- glyph.tsb = topsidebearing
+ -- end
+ end
+ -- The next can happen in for instance a monospace font or in a cjk font
+ -- with fixed heights.
+ for i=nofmetrics,nofglyphs-1 do
+ local glyph = glyphs[i]
+ if vheight ~= 0 and vheight ~= vdefault then
+ glyph.vheight = vheight
+ end
+ -- if topsidebearing ~= 0 then
+ -- glyph.tsb = topsidebearing
+ -- end
+ end
+ end
+ end
+end
+
+readers.vorg = function(f,fontdata,specification)
+ if specification.glyphs then
+ local datatable = fontdata.tables.vorg
+ if datatable then
+ report("todo: %s","vorg")
+ end
+ end
+end
+
-- The post table relates to postscript (printing) but has some relevant properties for other
-- usage as well. We just use the names from the microsoft specification. The version 2.0
-- description is somewhat fuzzy but it is a hybrid with overloads.
@@ -1751,7 +1833,7 @@ end
-- some properties in order to read following tables. When details is true we also
-- initialize the glyphs data.
-local function getinfo(maindata,sub,platformnames,rawfamilynames)
+local function getinfo(maindata,sub,platformnames,rawfamilynames,metricstoo)
local fontdata = sub and maindata.subfonts and maindata.subfonts[sub] or maindata
local names = fontdata.names
local info = nil
@@ -1808,6 +1890,29 @@ local function getinfo(maindata,sub,platformnames,rawfamilynames)
descender = metrics.typodescender,
platformnames = platformnames and fontdata.platformnames or nil,
}
+ if metricstoo then
+ local keys = {
+ "version",
+ "ascender", "descender", "linegap",
+ -- "caretoffset", "caretsloperise", "caretsloperun",
+ "maxadvancewidth", "maxadvanceheight", "maxextent",
+ -- "metricdataformat",
+ "minbottomsidebearing", "mintopsidebearing",
+ }
+ local h = fontdata.horizontalheader or { }
+ local v = fontdata.verticalheader or { }
+ if h then
+ local th = { }
+ local tv = { }
+ for i=1,#keys do
+ local key = keys[i]
+ th[key] = h[key] or 0
+ tv[key] = v[key] or 0
+ end
+ info.horizontalmetrics = th
+ info.verticalmetrics = tv
+ end
+ end
elseif n then
info = {
filename = fontdata.filename,
@@ -1900,7 +2005,10 @@ local function readdata(f,offset,specification)
readers["head"](f,fontdata,specification)
readers["maxp"](f,fontdata,specification)
readers["hhea"](f,fontdata,specification)
+ readers["vhea"](f,fontdata,specification)
readers["hmtx"](f,fontdata,specification)
+ readers["vmtx"](f,fontdata,specification)
+ readers["vorg"](f,fontdata,specification)
readers["post"](f,fontdata,specification)
readers["cff" ](f,fontdata,specification)
readers["cmap"](f,fontdata,specification)
@@ -2084,7 +2192,7 @@ function readers.loadfont(filename,n)
descriptions = fontdata.descriptions,
format = fontdata.format,
goodies = { },
- metadata = getinfo(fontdata,n), -- no platformnames here !
+ metadata = getinfo(fontdata,n,false,false,true), -- no platformnames here !
properties = {
hasitalics = fontdata.hasitalics or false,
maxcolorclass = fontdata.maxcolorclass,
diff --git a/src/fontloader/misc/fontloader-font-ots.lua b/src/fontloader/misc/fontloader-font-ots.lua
index 1c64720..17e1a3c 100644
--- a/src/fontloader/misc/fontloader-font-ots.lua
+++ b/src/fontloader/misc/fontloader-font-ots.lua
@@ -128,6 +128,7 @@ local trace_details = false registertracker("otf.details", function(v
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_plugins = false registertracker("otf.plugins", function(v) trace_plugins = 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)
@@ -136,6 +137,7 @@ local trace_testruns = false registertracker("otf.testruns", function(v
----- zwnjruns = true registerdirective("otf.zwnjruns", function(v) zwnjruns = v end)
local optimizekerns = true
+local alwaysdisc = true registerdirective("otf.alwaysdisc", function(v) alwaysdisc = v end)
local report_direct = logs.reporter("fonts","otf direct")
local report_subchain = logs.reporter("fonts","otf subchain")
@@ -599,7 +601,7 @@ local function toligature(head,start,stop,char,dataset,sequence,markflag,discfou
setlink(discfound,next)
setboth(base)
setfield(base,"components",copied)
- setdisc(discfound,pre,post,base,discretionary_code)
+ setdisc(discfound,pre,post,base) -- was discretionary_code
base = prev -- restart
end
end
@@ -3047,7 +3049,11 @@ end
-- -- local a = getattr(start,0)
-- -- if not a or (a == attr) then
--
--- and even that one is probably not needed.
+-- and even that one is probably not needed. However, we can handle interesting
+-- cases now:
+--
+-- 1{2{\oldstyle\discretionary{3}{4}{5}}6}7\par
+-- 1{2\discretionary{3{\oldstyle3}}{{\oldstyle4}4}{5{\oldstyle5}5}6}7\par
local nesting = 0
@@ -3077,6 +3083,7 @@ local function c_run_single(head,font,attr,lookupcache,step,dataset,sequence,rlm
start = getnext(start)
end
else
+ -- go on can be a mixed one
start = getnext(start)
end
elseif char == false then
@@ -3122,6 +3129,8 @@ local function t_run_single(start,stop,font,attr,lookupcache)
return true, d > 1
end
end
+ else
+ -- go on can be a mixed one
end
start = getnext(start)
else
@@ -3207,6 +3216,7 @@ local function c_run_multiple(head,font,attr,steps,nofsteps,dataset,sequence,rlm
start = getnext(start)
end
else
+ -- go on can be a mixed one
start = getnext(start)
end
elseif char == false then
@@ -3261,6 +3271,8 @@ local function t_run_multiple(start,stop,font,attr,steps,nofsteps)
report_missing_coverage(dataset,sequence)
end
end
+ else
+ -- go on can be a mixed one
end
start = getnext(start)
else
@@ -3324,7 +3336,7 @@ local function k_run_multiple(sub,injection,last,font,attr,steps,nofsteps,datase
end
end
--- to be checkedL nowadays we probably can assume properly matched directions
+-- to be checked, nowadays we probably can assume properly matched directions
-- so maybe we no longer need a stack
local function txtdirstate(start,stack,top,rlparmode)
@@ -3365,6 +3377,10 @@ local function pardirstate(start)
return getnext(start), new, new
end
+otf.helpers = otf.helpers or { }
+otf.helpers.txtdirstate = txtdirstate
+otf.helpers.pardirstate = pardirstate
+
local function featuresprocessor(head,font,attr)
local sequences = sequencelists[font] -- temp hack
@@ -3413,6 +3429,8 @@ local function featuresprocessor(head,font,attr)
local done = false
local datasets = otf.dataset(tfmdata,font,attr)
+ local forcedisc = alwaysdisc or not attr
+
local dirstack = { } -- could move outside function but we can have local runs
sweephead = { }
@@ -3425,7 +3443,7 @@ 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.)
- -- We don't goto the next node of a disc node is created so that we can then treat
+ -- We don't goto the next node when a disc node is created so that we can then treat
-- the pre, post and replace. It's a bit of a hack but works out ok for most cases.
for s=1,#datasets do
@@ -3527,16 +3545,26 @@ local function featuresprocessor(head,font,attr)
-- whatever glyph
start = getnext(start)
elseif id == disc_code then
- local ok
- if gpossing then
- start, ok = kernrun(start,k_run_single, font,attr,lookupcache,step,dataset,sequence,rlmode,handler)
- elseif typ == "gsub_ligature" then
- start, ok = testrun(start,t_run_single,c_run_single,font,attr,lookupcache,step,dataset,sequence,rlmode,handler)
+ -- ctx: we could assume the same attr as the surrounding glyphs but then we loose
+ -- the option to have interesting disc nodes (we gain upto 10% on extreme tests);
+ -- if a disc would have a font field we could even be more strict (see oldstyle test
+ -- case)
+ local a = forcedisc or getsubtype(start) == discretionary_code or getattr(start,0) == attr
+ if a then
+ -- local attr = false
+ local ok
+ if gpossing then
+ start, ok = kernrun(start,k_run_single, font,attr,lookupcache,step,dataset,sequence,rlmode,handler)
+ elseif typ == "gsub_ligature" then
+ start, ok = testrun(start,t_run_single,c_run_single,font,attr,lookupcache,step,dataset,sequence,rlmode,handler)
+ else
+ start, ok = comprun(start,c_run_single, font,attr,lookupcache,step,dataset,sequence,rlmode,handler)
+ end
+ if ok then
+ success = true
+ end
else
- start, ok = comprun(start,c_run_single, font,attr,lookupcache,step,dataset,sequence,rlmode,handler)
- end
- if ok then
- success = true
+ start = getnext(start)
end
elseif id == math_code then
start = getnext(end_of_math(start))
@@ -3596,16 +3624,22 @@ local function featuresprocessor(head,font,attr)
elseif char == false then
start = getnext(start)
elseif id == disc_code then
- local ok
- if gpossing then
- start, ok = kernrun(start,k_run_multiple, font,attr,steps,nofsteps,dataset,sequence,rlmode,handler)
- elseif typ == "gsub_ligature" then
- start, ok = testrun(start,t_run_multiple,c_run_multiple,font,attr,steps,nofsteps,dataset,sequence,rlmode,handler)
+ -- see comment above
+ local a = forcedisc or getsubtype(start) == discretionary_code or getattr(start,0) == attr
+ if a then
+ local ok
+ if gpossing then
+ start, ok = kernrun(start,k_run_multiple, font,attr,steps,nofsteps,dataset,sequence,rlmode,handler)
+ elseif typ == "gsub_ligature" then
+ start, ok = testrun(start,t_run_multiple,c_run_multiple,font,attr,steps,nofsteps,dataset,sequence,rlmode,handler)
+ else
+ start, ok = comprun(start,c_run_multiple, font,attr,steps,nofsteps,dataset,sequence,rlmode,handler)
+ end
+ if ok then
+ success = true
+ end
else
- start, ok = comprun(start,c_run_multiple, font,attr,steps,nofsteps,dataset,sequence,rlmode,handler)
- end
- if ok then
- success = true
+ start = getnext(start)
end
elseif id == math_code then
start = getnext(end_of_math(start))
@@ -3637,6 +3671,34 @@ end
-- so far
+local plugins = { }
+otf.plugins = plugins
+
+function otf.registerplugin(name,f)
+ if type(name) == "string" and type(f) == "function" then
+ plugins[name] = { name, f }
+ end
+end
+
+local function plugininitializer(tfmdata,value)
+ if type(value) == "string" then
+ tfmdata.shared.plugin = plugins[value]
+ end
+end
+
+local function pluginprocessor(head,font)
+ local s = fontdata[font].shared
+ local p = s and s.plugin
+ if p then
+ if trace_plugins then
+ report_process("applying plugin %a",p[1])
+ end
+ return p[2](head,font)
+ else
+ return head, false
+ end
+end
+
local function featuresinitializer(tfmdata,value)
-- nothing done here any more
end
@@ -3648,9 +3710,11 @@ registerotffeature {
initializers = {
position = 1,
node = featuresinitializer,
+ plug = plugininitializer,
},
processors = {
node = featuresprocessor,
+ plug = pluginprocessor,
}
}
diff --git a/src/fontloader/misc/fontloader-util-fil.lua b/src/fontloader/misc/fontloader-util-fil.lua
index eeb6856..eb054a5 100644
--- a/src/fontloader/misc/fontloader-util-fil.lua
+++ b/src/fontloader/misc/fontloader-util-fil.lua
@@ -109,6 +109,10 @@ function files.readcardinal2(f)
local a, b = byte(f:read(2),1,2)
return 0x100 * a + b
end
+function files.readcardinal2le(f)
+ local b, a = byte(f:read(2),1,2)
+ return 0x100 * a + b
+end
function files.readinteger2(f)
local a, b = byte(f:read(2),1,2)
@@ -120,11 +124,25 @@ function files.readinteger2(f)
return n
end
end
+function files.readinteger2le(f)
+ local b, a = byte(f:read(2),1,2)
+ local n = 0x100 * a + b
+ if n >= 0x8000 then
+ -- return n - 0xFFFF - 1
+ return n - 0x10000
+ else
+ return n
+ end
+end
function files.readcardinal3(f)
local a, b, c = byte(f:read(3),1,3)
return 0x10000 * a + 0x100 * b + c
end
+function files.readcardinal3le(f)
+ local c, b, a = byte(f:read(3),1,3)
+ return 0x10000 * a + 0x100 * b + c
+end
function files.readinteger3(f)
local a, b, c = byte(f:read(3),1,3)
@@ -136,11 +154,25 @@ function files.readinteger3(f)
return n
end
end
+function files.readinteger3le(f)
+ local c, b, a = byte(f:read(3),1,3)
+ local n = 0x10000 * a + 0x100 * b + c
+ if n >= 0x80000 then
+ -- return n - 0xFFFFFF - 1
+ return n - 0x1000000
+ else
+ return n
+ end
+end
function files.readcardinal4(f)
local a, b, c, d = byte(f:read(4),1,4)
return 0x1000000 * a + 0x10000 * b + 0x100 * c + d
end
+function files.readcardinal4le(f)
+ local d, c, b, a = byte(f:read(4),1,4)
+ return 0x1000000 * a + 0x10000 * b + 0x100 * c + d
+end
function files.readinteger4(f)
local a, b, c, d = byte(f:read(4),1,4)
@@ -152,6 +184,16 @@ function files.readinteger4(f)
return n
end
end
+function files.readinteger4le(f)
+ local d, c, b, a = byte(f:read(4),1,4)
+ local n = 0x1000000 * a + 0x10000 * b + 0x100 * c + d
+ if n >= 0x8000000 then
+ -- return n - 0xFFFFFFFF - 1
+ return n - 0x100000000
+ else
+ return n
+ end
+end
function files.readfixed4(f)
local a, b, c, d = byte(f:read(4),1,4)
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-23 09:30:48 +0000