--
luatexbase.provides_module({
name = 'luatexja.jfont',
- date = '2019/05/01',
+ date = '2019/07/05',
description = 'Loader for Japanese fonts',
})
for i,_ in pairs(rot) do
dest = dest or {}
- dest[i] = dest[i] or {}
- dest[i].rotation = true
+ dest.rotation = dest.rotation or {}
+ dest.rotation[i] = true
end
end
return dest
-- vertical metrics
local prepare_fl_data
-local supply_vkern_table
do
- local fields = fontloader.fields
- local function glyph_vmetric(glyph)
- local flds = fields(glyph)
- local vw, tsb, vk = nil, nil, nil
- for _,i in ipairs(flds) do
- if i=='vkerns' then vk = glyph.vkerns end
- end
- return vw, tsb, vk
- end
-
local sort = table.sort
- local function add_fl_table(dest, glyphs, unitable, asc_des, units, id)
- local glyphmin, glyphmax = glyphs.glyphmin, glyphs.glyphmax
- if glyphmax < 0 then return dest end
- local tg = glyphs.glyphs
- for i = glyphmin, glyphmax do
- local gv = tg[i]
- if gv then
- if gv.altuni then
- for _,at in pairs(gv.altuni) do
- local bu, vsel = at.unicode, at.variant
- if vsel then
- if vsel>=0xE0100 then vsel = vsel - 0xE0100 end
- local uniq_flag = true
- if dest and dest[bu] then
- for i,_ in pairs(dest[bu]) do
- if i==vsel then uniq_flag = false; break end
- end
- end
- if uniq_flag then
- dest = dest or {}; dest[bu] = dest[bu] or {}
- dest[bu][vsel] = unitable[gv.name]
- end
- end
- end
- end
- -- vertical metric
- local vw, tsb, vk = glyph_vmetric(gv)
- local gi = unitable[gv.name]
- -- vertical kern
- if gi and vk then
- dest = dest or {};
- local dest_vk = dest.vkerns or {}; dest.vkerns = dest_vk
- for _,v in pairs(vk) do
- if unitable[v.char] then
- local vl = v.lookup
- if type(vl)=='table' then
- for _,vlt in pairs(vl) do
- dest_vk[vlt] = dest_vk[vlt] or {}
- dest_vk[vlt][gi] = dest_vk[vlt][gi] or {}
- dest_vk[vlt][gi][unitable[v.char]] = v.off
- end
- else
- dest_vk[vl] = dest_vk[vl] or {}
- dest_vk[vl][gi] = dest_vk[vl][gi] or {}
- dest_vk[vl][gi][unitable[v.char]] = v.off
- end
- end
- end
- end
- end
- end
- return dest
- end
prepare_fl_data = function (dest, id)
- local t = fontloader.info(id.filename)
- if not t then return dest end
- local fl
- if t.fontname then
- fl = fontloader.open(id.filename)
- else
- fl = fontloader.open(id.filename, id.fontname) -- マニュアルにはこっちで書いてあるが？
- if not fl then
- local index
- for i,v in ipairs(t) do
- if v.fontname == id.fontname then index=i; break end
- end
- fl = fontloader.open(id.filename, index)
- end
- end
- if not fl then fontloader.close(fl); return dest end
- local ind_to_uni, unicodes = {}, {}
- for i,v in pairs(id.characters) do
- ind_to_uni[v.index] = i
- end
- if fl.glyphs then
- local tg, glyphmin, glyphmax = fl.glyphs, fl.glyphmin, fl.glyphmax
- if 0 <= glyphmax then
- for i = glyphmin, glyphmax do
- if tg[i] and tg[i].name then unicodes[tg[i].name] = ind_to_uni[i] end
- end
- end
- dest = add_fl_table(dest, fl, unicodes,
- fl.ascent + fl.descent, fl.units_per_em, id)
- end
- if fl.subfonts then
- for _,v in pairs(fl.subfonts) do
- local tg, glyphmin, glyphmax = v.glyphs, v.glyphmin, v.glyphmax
- if 0 <= glyphmax then
- for i = glyphmin, glyphmax do
- if tg[i] and tg[i].name then unicodes[tg[i].name] = ind_to_uni[i] end
- end
- end
- end
- for _,v in pairs(fl.subfonts) do
- dest = add_fl_table(dest, v, unicodes,
- fl.ascent + fl.descent, fl.units_per_em, id)
- end
+ local t = {}
+ for i,v in pairs(id.shared.rawdata.descriptions) do
+ t[v.index] = i
end
- if dest then dest.unicodes = unicodes end
- fontloader.close(fl); collectgarbage("collect")
+ dest = dest or {}; dest.ind_to_uni = t
return dest
end
- -- supply vkern table
- supply_vkern_table = function(id, bname)
- local bx = font_extra_basename[bname].vkerns
- local lookuphash = id.resources.lookuphash
- local desc = id.shared.rawdata.descriptions
- if bx and lookuphash then
- for i,v in pairs(bx) do
- lookuphash[i] = lookuphash[i] or v
- for j,w in pairs(v) do
- desc[j].kerns = desc[j].kerns or {}
- desc[j].kerns[i] = w
- end
- end
- end
- end
end
--
do
- local cache_ver = 17
+ local cache_ver = 18
local function prepare_extra_data_base(id)
if (not id) or (not id.filename) then return end
luatexbase.add_to_callback(
'luaotfload.patch_font',
function (tfmdata)
- -- these function is executed one time per one fontfile
- if jfm_file_name then
- local bname = prepare_extra_data_base(tfmdata)
- if bname then supply_vkern_table(tfmdata, bname) end
- end
- return tfmdata
+ -- these function is executed one time per one fontfile
+ prepare_extra_data_base(tfmdata); return tfmdata
end,
'ltj.prepare_extra_data', 1)
luatexbase.add_to_callback(
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