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-rw-r--r--src/fontloader/misc/fontloader-font-gbn.lua24
-rw-r--r--src/fontloader/misc/fontloader-font-ots.lua60
-rw-r--r--src/fontloader/misc/fontloader-font-oup.lua23
3 files changed, 85 insertions, 22 deletions
diff --git a/src/fontloader/misc/fontloader-font-gbn.lua b/src/fontloader/misc/fontloader-font-gbn.lua
index a645a97..daa072b 100644
--- a/src/fontloader/misc/fontloader-font-gbn.lua
+++ b/src/fontloader/misc/fontloader-font-gbn.lua
@@ -20,6 +20,7 @@ local nuts = nodes.nuts -- context abstraction of direct nodes
local traverse_id = nuts.traverse_id
local remove_node = nuts.remove
+local free_node = nuts.free
local glyph_code = nodes.nodecodes.glyph
local disc_code = nodes.nodecodes.disc
@@ -30,11 +31,13 @@ local tonut = nuts.tonut
local getfont = nuts.getfont
local getchar = nuts.getchar
local getid = nuts.getid
+local getboth = nuts.getboth
local getprev = nuts.getprev
local getnext = nuts.getnext
local getdisc = nuts.getdisc
local setchar = nuts.setchar
local setlink = nuts.setlink
+local setprev = nuts.setprev
-- from now on we apply ligaturing and kerning here because it might interfere with complex
-- opentype discretionary handling where the base ligature pass expect some weird extra
@@ -136,7 +139,26 @@ function nodes.handlers.nodepass(head)
end
if redundant then
for i=1,#redundant do
- remove_node(nuthead,redundant[i],true)
+ local r = redundant[i]
+ local p, n = getboth(r)
+ if r == nuthead then
+ nuthead = n
+ setprev(n)
+ else
+ setlink(p,n)
+ end
+ if b > 0 then
+ for i=1,b do
+ local bi = basefonts[i]
+ if r == bi[1] then
+ bi[1] = n
+ end
+ if r == bi[2] then
+ bi[2] = n
+ end
+ end
+ end
+ free_node(r)
end
end
for d in traverse_id(disc_code,nuthead) do
diff --git a/src/fontloader/misc/fontloader-font-ots.lua b/src/fontloader/misc/fontloader-font-ots.lua
index 0a438d5..6911872 100644
--- a/src/fontloader/misc/fontloader-font-ots.lua
+++ b/src/fontloader/misc/fontloader-font-ots.lua
@@ -696,6 +696,9 @@ end
function handlers.gsub_ligature(head,start,dataset,sequence,ligature)
local current = getnext(start)
+ if not current then
+ return head, start, false, nil
+ end
local stop = nil
local startchar = getchar(start)
if marks[startchar] then
@@ -756,14 +759,30 @@ function handlers.gsub_ligature(head,start,dataset,sequence,ligature)
-- kind of weird
break
elseif id == disc_code then
- if getfield(current,"replace") then
- -- this only happens when we didn't normalize ... in a future version we will
- -- assume normalization of disc nodes
- break
- else
- lastdisc=current
- current=getnext(current)
+ -- tricky .. we also need to do pre here
+ local replace = getfield(current,"replace")
+ if replace then
+ -- of{f-}{}{f}e o{f-}{}{f}fe o{-}{}{ff}e (oe and ff ligature)
+ -- we can end up here when we have a start run .. testruns start at a disc but
+ -- so here we have the other case: char + disc
+ while replace do
+ local char, id = ischar(replace,currentfont)
+ if char then
+ local lg = ligature[char] -- can there be multiple in a row? maybe in a bad font
+ if lg then
+ ligature = lg
+ replace = getnext(replace)
+ else
+ return head, start, false, false
+ end
+ else
+ return head, start, false, false
+ end
+ end
+ stop = current
end
+ lastdisc = current
+ current = getnext(current)
else
break
end
@@ -1287,6 +1306,7 @@ function chainprocs.gsub_ligature(head,start,stop,dataset,sequence,currentlookup
local nofreplacements = 1
local skipmark = currentlookup.flags[1] -- sequence.flags?
while current do
+ -- todo: ischar ... can there really be disc nodes here?
local id = getid(current)
if id == disc_code then
if not discfound then
@@ -2761,6 +2781,8 @@ local function kernrun(disc,k_run,font,attr,...)
next = false
end
--
+ -- we need to get rid of this nest mess some day .. has to be done otherwise
+ --
if pre then
if k_run(pre,"injections",nil,font,attr,...) then
done = true
@@ -2768,7 +2790,7 @@ local function kernrun(disc,k_run,font,attr,...)
if prev then
local nest = getprev(pre)
setlink(prev,pre)
- if k_run(prevmarks,"preinjections",pre,font,attr,...) then -- getnext(pre))
+ if k_run(prevmarks,"preinjections",pre,font,attr,...) then -- or prev?
done = true
end
setprev(pre,nest)
@@ -2866,7 +2888,7 @@ local function comprun(disc,c_run,...)
setdisc(disc,pre,post,replace)
end
--
- return getnext(disc), done
+ return getnext(disc), renewed
end
local function testrun(disc,t_run,c_run,...)
@@ -3006,8 +3028,9 @@ local nesting = 0
local function c_run_single(head,font,attr,lookupcache,step,dataset,sequence,rlmode,handler)
local done = false
- local start = sweephead[head]
- if start then
+ local sweep = sweephead[head]
+ if sweep then
+ start = sweep
sweephead[head] = nil
else
start = head
@@ -3033,8 +3056,11 @@ local function c_run_single(head,font,attr,lookupcache,step,dataset,sequence,rlm
end
elseif char == false then
return head, done
+ elseif sweep then
+ -- else we loose the rest
+ return head, done
else
- -- weird
+ -- in disc component
start = getnext(start)
end
end
@@ -3119,8 +3145,9 @@ end
local function c_run_multiple(head,font,attr,steps,nofsteps,dataset,sequence,rlmode,handler)
local done = false
- local start = sweephead[head]
- if start then
+ local sweep = sweephead[head]
+ if sweep then
+ start = sweep
sweephead[head] = nil
else
start = head
@@ -3160,8 +3187,11 @@ local function c_run_multiple(head,font,attr,steps,nofsteps,dataset,sequence,rlm
elseif char == false then
-- whatever glyph
return head, done
+ elseif sweep then
+ -- else we loose the rest
+ return head, done
else
- -- very unlikely
+ -- in disc component
start = getnext(start)
end
end
diff --git a/src/fontloader/misc/fontloader-font-oup.lua b/src/fontloader/misc/fontloader-font-oup.lua
index 59530af..7edaaf6 100644
--- a/src/fontloader/misc/fontloader-font-oup.lua
+++ b/src/fontloader/misc/fontloader-font-oup.lua
@@ -9,7 +9,7 @@ if not modules then modules = { } end modules ['font-oup'] = {
local next, type = next, type
local P, R, S = lpeg.P, lpeg.R, lpeg.S
local lpegmatch = lpeg.match
-local insert, remove, copy = table.insert, table.remove, table.copy
+local insert, remove, copy, unpack = table.insert, table.remove, table.copy, table.unpack
local formatters = string.formatters
local sortedkeys = table.sortedkeys
@@ -737,8 +737,7 @@ local function stripredundant(fontdata)
end
function readers.getcomponents(fontdata) -- handy for resolving ligatures when names are missing
- local resources = fontdata.resources
- local descriptions = fontdata.descriptions
+ local resources = fontdata.resources
if resources then
local sequences = resources.sequences
if sequences then
@@ -761,7 +760,7 @@ function readers.getcomponents(fontdata) -- handy for resolving ligatures when n
end
end
for i=1,#steps do
- -- we actually had/have this in base mode
+ -- we actually had/have this in base mode
local coverage = steps[i].coverage
if coverage then
for k, v in next, coverage do
@@ -773,13 +772,25 @@ function readers.getcomponents(fontdata) -- handy for resolving ligatures when n
end
end
if next(collected) then
+ -- remove self referring
+ -- for k, v in next, collected do
+ -- for i=1,#v do
+ -- local vi = v[i]
+ -- if vi == k then
+ -- -- report("removing self referring ligature @ slot %5X from collected (1)",k)
+ -- collected[k] = nil
+ -- end
+ -- end
+ -- end
while true do
local done = false
for k, v in next, collected do
for i=1,#v do
local vi = v[i]
if vi == k then
+ -- report("removing self referring ligature @ slot %5X from collected (2)",k)
collected[k] = nil
+ break
else
local c = collected[vi]
if c then
@@ -787,7 +798,7 @@ function readers.getcomponents(fontdata) -- handy for resolving ligatures when n
local t = { }
local n = i - 1
for j=1,n do
- t[j] = t[j]
+ t[j] = v[j]
end
for j=1,#c do
n = n + 1
@@ -795,7 +806,7 @@ function readers.getcomponents(fontdata) -- handy for resolving ligatures when n
end
for j=i+1,#v do
n = n + 1
- t[n] = t[j]
+ t[n] = v[j]
end
collected[k] = t
break
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-09 04:52:27 +0000