--
--- luatexja/base.lua
+-- luatexja/ltj-base.lua
--
-luatexbase.provides_module({
- name = 'luatexja.base',
- date = '2011/11/18',
- description = '',
-})
-module('luatexja.base', package.seeall)
-local err, warn, info, log = luatexbase.errwarinf(_NAME)
-
local ltb = luatexbase
local tostring = tostring
local node, table, tex, token = node, table, tex, token
local cat_lp = luatexbase.catcodetables['latex-package']
--------------------
+luatexja.base = {}
+
+local public_name = 'luatexja'
+local public_version = 'alpha'
+luatexja.base.public_name = public_name
+luatexja.base.public_version = public_version
-public_name = 'luatexja'
-public_version = 'alpha'
-------------------- Fully-expandable error messaging
+local _error_set_break, _error_set_message, _error_show
+local generic_error, _generic_warn_info
+local generic_warning, generic_warning_no_line
+local generic_info, generic_info_no_line
+local package_error, package_warning, package_warning_no_line
+local package_info, package_info_no_line
+local ltj_error, ltj_warning_no_line
+
do
--! LaTeX 形式のエラーメッセージ(\PackageError 等)を
--! Lua 関数の呼び出しで行う.
return str:gsub(err_break, LF):explode(LF)
end
- function _error_set_break(str)
+ _error_set_break = function (str)
err_break = str
end
- function _error_set_message(msgcont, main, help)
+ _error_set_message = function (msgcont, main, help)
err_main = message_cont(main, msgcont)
err_help = into_lines(help)
end
- function _error_show(escchar)
+ _error_show = function (escchar)
local escapechar = tex.escapechar
local newlinechar = tex.newlinechar
local errorcontextlines = tex.errorcontextlines
local message_a = "Type H <return> for immediate help"
- function generic_error(msgcont, main, ref, help)
+ generic_error = function (msgcont, main, ref, help)
local mainref = main..".\n\n"..ref.."\n"..message_a
_error_set_message(msgcont, mainref, help)
_error_show(true)
end
- function _generic_warn_info(msgcont, main, warn, line)
+ _generic_warn_info = function (msgcont, main, warn, line)
local mainc = message_cont(main, msgcont)
local br = warn and "\n" or ""
local out = warn and "term and log" or "log"
tex.newlinechar = newlinechar
end
- function generic_warning(msgcont, main)
+ generic_warning = function (msgcont, main)
_generic_warn_info(msgcont, main, true, true)
end
- function generic_warning_no_line(msgcont, main)
+ generic_warning_no_line = function (msgcont, main)
_generic_warn_info(msgcont, main, true, false)
end
- function generic_info(msgcont, main)
+ generic_info = function (msgcont, main)
_generic_warn_info(msgcont, main, false, true)
end
- function generic_info_no_line(msgcont, main)
+ generic_info_no_line = function (msgcont, main)
_generic_warn_info(msgcont, main, false, false)
end
- function package_error(pkgname, main, help)
+ package_error = function (pkgname, main, help)
generic_error("("..pkgname.." ",
"Package "..pkgname.." Error: "..main,
"See the "..pkgname.." package documentation for explanation.",
help)
end
- function package_warning(pkgname, main)
+ package_warning = function (pkgname, main)
generic_warning("("..pkgname.." ",
"Package "..pkgname.." Warning: "..main)
end
- function package_warning_no_line(pkgname, main)
+ package_warning_no_line = function (pkgname, main)
generic_warning_no_line("("..pkgname.." ",
"Package "..pkgname.." Warning: "..main)
end
- function package_info(pkgname, main)
+ package_info = function (pkgname, main)
generic_info("("..pkgname.." ",
"Package "..pkgname.." Info: "..main)
end
- function package_info_no_line(pkgname, main)
+ package_info_no_line = function (pkgname, main)
generic_info_no_line("("..pkgname.." ",
"Package "..pkgname.." Info: "..main)
end
- function ltj_error(main, help)
+ ltj_error = function (main, help)
package_error(public_name, main, help)
end
- function ltj_warning_no_line(main)
+ ltj_warning_no_line = function (main)
package_warning_no_line(public_name, main, help)
end
end
-------------------- TeX stream I/O
-do
-
--! ixbase.print() と同じ
- --- Extension to tex.print(). Each argument string may contain
- -- newline characters, in which case the string is output (to
- -- TeX input stream) as multiple lines.
- -- @param ... (string) string to output
- function mprint(...)
- local arg = {...}
- local lines = {}
- if type(arg[1]) == "number" then
+--- Extension to tex.print(). Each argument string may contain
+-- newline characters, in which case the string is output (to
+-- TeX input stream) as multiple lines.
+-- @param ... (string) string to output
+local function mprint(...)
+ local arg = {...}
+ local lines = {}
+ if type(arg[1]) == "number" then
table.insert(lines, arg[1])
table.remove(arg, 1)
- end
- for _, cnk in ipairs(arg) do
+ end
+ for _, cnk in ipairs(arg) do
local ls = cnk:explode("\n")
if ls[#ls] == "" then
- table.remove(ls, #ls)
+ table.remove(ls, #ls)
end
for _, l in ipairs(ls) do
- table.insert(lines, l)
+ table.insert(lines, l)
end
- end
- return tex.print(unpack(lines))
- end
-
+ end
+ return tex.print(unpack(lines))
end
+luatexja.base.mprint = mprint
+
-------------------- Handling of TeX values
do
end
--! ixbase.to_dimen() と同じ
- function to_dimen(val)
+ local function to_dimen(val)
if val == nil then
return 0
elseif type(val) == "number" then
end
--! ixbase.to_skip() と同じ
- function to_skip(val)
+ local function to_skip(val)
if type(val) == "userdata" then
return val
end
return res
end
- function dump_skip(s)
+ local function dump_skip(s)
print(("%s+%s<%s>-%s<%s>"):format(
s.width or 0, s.stretch or 0, s.stretch_order or 0,
s.shrink or 0, s.shrink_order or 0))
end
+ luatexja.base.to_dimen = to_dimen
+ luatexja.base.dump_skip = dump_skip
+ luatexja.base.to_skip = to_skip
end
+
-------------------- Virtual table for LaTeX counters
+-- not used in current LuaTeX-ja
do
-
--! ixbase.counter と同じ
counter = {}
local mt_counter = {}
function mt_counter.__newindex(tbl, key, val)
tex.count['c@'..key] = val
end
+ luatexja.base.counter = counter
--! ixbase.length は tex.skip と全く同じなので不要.
-
end
+
-------------------- Number handling in TeX source
do
local c_id_char_given = token.command_id("char_given")
local function error_scan()
- _M.package_error("luatexja",
+ package_error("luatexja",
"Missing number of a permitted form, treated as zero",
"A number should have been here; I inserted '0'.")
end
ltb.add_to_callback("token_filter", proc, "ltj@grab@num", 1)
end
- function scan_brace()
+ local function scan_brace()
scan_with(1, function()
local next = token.get_next()
if next[1] == 1 then
end)
end
- function scan_number()
+ local function scan_number()
scan_with(1, function()
local next = get_expd_next()
local res, ok = { tok_num }, false
end)
end
+ luatexja.base.scan_brace = scan_brace
+ luatexja.base.scan_number = scan_number
end
+
-------------------- TeX register allocation
+-- not used in current LuaTeX-ja
+
do
local cmod_base_count = token.create('ltj@@count@zero')[2]
local cmod_base_attr = token.create('ltj@@attr@zero')[2]
local cmod_base_dimen = token.create('ltj@@dimen@zero')[2]
local cmod_base_skip = token.create('ltj@@skip@zero')[2]
- function const_number(name)
+ local function const_number(name)
if name:sub(1, 1) == '\\' then name = name:sub(2) end
return token.create(name)[2]
end
- function count_number(name)
+ local function count_number(name)
if name:sub(1, 1) == '\\' then name = name:sub(2) end
return token.create(name)[2] - cmod_base_count
end
- function attribute_number(name)
+ local function attribute_number(name)
if name:sub(1, 1) == '\\' then name = name:sub(2) end
return token.create(name)[2] - cmod_base_attr
end
- function dimen_number(name)
+ local function dimen_number(name)
if name:sub(1, 1) == '\\' then name = name:sub(2) end
return token.create(name)[2] - cmod_base_dimen
end
- function skip_number(name)
+ local function skip_number(name)
if name:sub(1, 1) == '\\' then name = name:sub(2) end
return token.create(name)[2] - cmod_base_skip
end
+ luatexja.base.const_number = const_number
+ luatexja.base.count_number = count_number
+ luatexja.base.attribute_number = attribute_number
+ luatexja.base.dimen_number = dimen_number
+ luatexja.base.skip_number = skip_number
end
--------------------- mock of debug logger
-if not _M.debug or _M.debug == _G.debug then
+-------------------- mock of debug logger
+if not debug or debug == _G.debug then
local function no_op() end
debug = no_op
package_debug = no_op
end
-------------------- getting next token
-cstemp = nil
-function get_cs(s)
+local cstemp = nil
+local function get_cs(s)
cstemp = token.csname_name(token.get_next())
tex.sprint(cat_lp,'\\' .. s)
end
+luatexja.base.get_cs = get_cs
+
+-------------------- common error message
+do
+ local function in_unicode(c, admit_math)
+ local low = admit_math and -1 or 0
+ if type(c)~='number' or c<low or c>0x10FFFF then
+ local s = 'A character number must be between ' .. tostring(low)
+ .. ' and 0x10ffff.\n'
+ .. (admit_math and "(-1 is used for denoting `math boundary')\n" or '')
+ .. 'So I changed this one to zero.'
+ package_error('luatexja',
+ 'bad character code (' .. tostring(c) .. ')', s)
+ c=0
+ end
+ return c
+ end
+ luatexja.base.in_unicode = in_unicode
+end
+
+-------------------- cache management
+-- load_cache (filename, outdate)
+-- * filename: without suffix '.lua'
+-- * outdate(t): return true iff the cache is outdated
+-- * return value: non-nil iff the cache is up-to-date
+-- save_cache (filename, t): no return value
+-- save_cache_luc (filename, t): no return value
+-- save_cache always calls save_cache_luc.
+-- But sometimes we want to create only the precompiled cache,
+-- when its 'text' version is already present in LuaTeX-ja distribution.
+
+require('lualibs-lpeg') -- string.split
+require('lualibs-os') -- os.type
+
+do
+ local kpse_var_value = kpse.var_value
+ local path, pathtmp = kpse_var_value("TEXMFVAR")
+ pathtmp = kpse_var_value("TEXMFSYSVAR")
+ if pathtmp then path = (path and path .. ';' or '') .. pathtmp end
+ pathtmp = kpse_var_value("TEXMFCACHE")
+ if pathtmp then path = (path and path .. ';' or '') .. pathtmp end
+
+ if os.type~='windows' then path = string.gsub(path, ':', ';') end
+ path = table.unique(string.split(path, ';'))
+
+ local cache_dir = '/luatexja'
+ local find_file = kpse.find_file
+ local join, isreadable = file.join, file.isreadable
+ local tofile, serialize = table.tofile, table.serialize
+ local luc_suffix = jit and '.lub' or '.luc'
+
+ -- determine save path
+ local savepath = ''
+ for _,v in pairs(path) do
+ local testpath = join(v, cache_dir)
+ if not lfs.isdir(testpath) then dir.mkdirs(testpath) end
+ if lfs.isdir(testpath) then savepath = testpath; break end
+ end
+
+ save_cache_luc = function (filename, t, serialized)
+ local fullpath = savepath .. '/' .. filename .. luc_suffix
+ local s = serialized or serialize(t, 'return', false)
+ if s then
+ local sa = load(s)
+ local f = io.open(fullpath, 'wb')
+ if f and sa then
+ f:write(string.dump(sa, true))
+ texio.write('(save cache: ' .. fullpath .. ')')
+ end
+ f:close()
+ end
+ end
+
+ save_cache = function (filename, t)
+ local fullpath = savepath .. '/' .. filename .. '.lua'
+ local s = serialize(t, 'return', false)
+ if s then
+ local f = io.open(fullpath, 'w')
+ if f then
+ f:write(s)
+ texio.write('(save cache: ' .. fullpath .. ')')
+ end
+ f:close()
+ save_cache_luc(filename, t, s)
+ end
+ end
+
+ local function load_cache_a (filename, outdate)
+ local result
+ for _,v in pairs(path) do
+ local fn = join(v, cache_dir, filename)
+ if isreadable(fn) then
+ texio.write('(load cache: ' .. fn .. ')')
+ result = loadfile(fn)
+ result = result and result(); break
+ end
+ end
+ if (not result) or outdate(result) then
+ return nil
+ else
+ return result
+ end
+ end
+
+ load_cache = function (filename, outdate)
+ local r = load_cache_a(filename .. luc_suffix, outdate)
+ if r then
+ return r
+ else
+ local r = load_cache_a(filename .. '.lua', outdate)
+ if r then save_cache_luc(filename, r) end -- update the precompiled cache
+ return r
+ end
+ end
+
+ luatexja.base.load_cache = load_cache
+ luatexja.base.save_cache_luc = save_cache_luc
+ luatexja.base.save_cache = save_cache
+end
+
+luatexja.base._error_set_break = _error_set_break
+luatexja.base._error_set_message = _error_set_message
+luatexja.base._error_show = _error_show
+luatexja.base._generic_warn_info = _generic_warn_info
+
+luatexja.base.package_error = package_error
+luatexja.base.package_warning = package_warning
+luatexja.base.package_warning_no_line = package_warning_no_line
+luatexja.base.package_info = package_info
+luatexja.base.package_info_no_line = package_info_no_line
+
+luatexja.base.generic_error = generic_error
+luatexja.base.generic_warning = generic_warning
+luatexja.base.generic_warning_no_line = generic_warning_no_line
+luatexja.base.generic_info = generic_info
+luatexja.base.generic_info_no_line = generic_info_no_line
+
+luatexja.base.ltj_warning_no_line = ltj_warning_no_line
+luatexja.base.ltj_error = ltj_error
+
+luatexja.base.debug = debug
+luatexja.base.package_debug = package_debug
+luatexja.base.debug_logger = debug_logger
+luatexja.base.show_term = show_term
+luatexja.base.show_log = show_log
-------------------- all done
-- EOF
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