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--
-- This is file `luatex-hyphen.lua',
-- generated with the docstrip utility.
--
-- The original source files were:
--
-- luatex-hyphen.dtx (with options: `lua')
--
-- This is a generated file (source: luatex-hyphen.dtx).
--
-- Copyright (C) 2010 by The LuaLaTeX development team.
--
-- This work is under the CC0 license.
--
local error, dofile, pairs, ipairs = error, dofile, pairs, ipairs
local io, texio, lang, kpse = io, texio, lang, kpse
module('luatexhyphen')
local function wlog(msg, ...)
texio.write_nl('log', 'luatex-hyphen: '..msg:format(...))
end
local function err(msg, ...)
error('luatex-hyphen: '..msg:format(...), 2)
end
local dbname = "language.dat.lua"
local language_dat
local dbfile = kpse.find_file(dbname)
if not dbfile then
err("file not found: "..dbname)
else
wlog('using data file: %s', dbfile)
language_dat = dofile(dbfile)
end
function lookupname(name)
if language_dat[name] then
return language_dat[name], name
else
for canon, data in pairs(language_dat) do
for _,syn in ipairs(data.synonyms) do
if syn == name then
return data, canon
end
end
end
end
end
function loadlanguage(lname, id)
local msg = "loading%s patterns and exceptions for: %s (\\language%d)"
local ldata, cname = lookupname(lname)
if not ldata then
err("no entry in %s for this language: %s", dbname, lname)
end
if ldata.special then
if ldata.special:find('^disabled:') then
err("language disabled by %s: %s (%s)", dbname, cname,
ldata.special:gsub('^disabled:', ''))
elseif ldata.special == 'language0' then
err("\\language0 should be dumped in the format")
else
err("bad entry in %s for language %s")
end
end
wlog(msg, '', cname, id)
for _, item in ipairs{'patterns', 'hyphenation'} do
local filelist = ldata[item]
if filelist ~= nil and filelist ~= '' then
for _, file in ipairs(filelist:explode(',')) do
local file = kpse.find_file(file) or err("file not found: %s", file)
local fh = io.open(file, 'r')
local data = fh:read('*a') or err("file not readable: %s", f)
fh:close()
lang[item](lang.new(id), data)
end
else
if item == 'hyphenation' then item = item..' exceptions' end
wlog("info: no %s for this language", item)
end
end
end
--
-- End of File `luatex-hyphen.lua'.
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