--
--- luatexja/ltj-base.lua
+-- ltj-base.lua
--
local ltb = luatexbase
local tostring = tostring
-------------------- Handling of TeX values
do
- local glue_spec_id = node.id("glue_spec")
-
- local function copy_skip(s1, s2)
- if not s1 then
- s1 = node.new(glue_spec_id)
- end
- s1.width = s2.width or 0
- s1.stretch = s2.stretch or 0
- s1.stretch_order = s2.stretch_order or 0
- s1.shrink = s2.shrink or 0
- s1.shrink_order = s2.shrink_order or 0
- return s1
- end
-
--! ixbase.to_dimen() と同じ
local function to_dimen(val)
if val == nil then
return tex.sp(val), fil
end
---! ixbase.to_skip() と同じ
- local function to_skip(val)
- if type(val) == "userdata" then
- return val
- end
- local res = node.new(glue_spec_id)
- if val == nil then
- res.width = 0
- elseif type(val) == "number" then
- res.width = val
- elseif type(val) == "table" then
- copy_skip(res, val)
- else
- local t = tostring(val):lower():explode()
- local w, p, m = t[1], t[3], t[5]
- if t[2] == "minus" then
- p, m = nil, t[3]
- end
- res.width = tex.sp(t[1])
- if p then
- res.stretch, res.stretch_order = parse_dimen(p)
- end
- if m then
- res.shrink, res.shrink_order = parse_dimen(m)
- end
- end
- return res
- end
-
- 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
-
ltjb.to_dimen = to_dimen
- ltjb.dump_skip = dump_skip
- ltjb.to_skip = to_skip
end
-------------------- Virtual table for LaTeX counters
-- not used in current LuaTeX-ja
do
--! ixbase.counter と同じ
- counter = {}
+ local counter = {}
local mt_counter = {}
setmetatable(counter, mt_counter)
--! ixbase.length は tex.skip と全く同じなので不要.
end
--------------------- Number handling in TeX source
-do
-
- local tok_escape = token.create("ltj@@q@escape")
- local tok_num = token.create("ltj@@q@escapenum")
- local c_id_assign_int = token.command_id("assign_int")
- local c_id_char_given = token.command_id("char_given")
-
- local function error_scan()
- package_error("luatexja",
- "Missing number of a permitted form, treated as zero",
- "A number should have been here; I inserted '0'.")
- end
-
- local function get_expd_next()
- local next = token.get_next()
- while token.is_expandable(next) do
- token.expand(next)
- next = token.get_next()
- end
- return next
- end
-
- local function grab_decimal(next, res)
- table.insert(res, next)
- while true do
- next = get_expd_next()
- if not (next[1] == 12 and 0x30 <= next[2] and next[2] <= 0x39) then
- break
- end
- table.insert(res, next)
- end
- if next[1] == 10 then next = nil end
- return true, next
- end
-
- local function grab_hexa(next, res)
- local ok = false
- table.insert(res, next)
- while true do
- next = get_expd_next()
- if not ((next[1] == 12 and (0x30 <= next[2] and next[2] <= 0x39)) or
- ((next[1] == 12 or next[1] == 11) and
- (0x41 <= next[2] and next[2] <= 0x46))) then
- break
- end
- ok = true
- table.insert(res, next)
- end
- if next[1] == 10 then next = nil end
- return ok, next
- end
-
- local function grab_octal(next, res)
- local ok = false
- table.insert(res, next)
- while true do
- next = get_expd_next()
- if not (next[1] == 12 and (0x30 <= next[2] and next[2] <= 0x37)) then
- break
- end
- ok = true
- table.insert(res, next)
- end
- if next[1] == 10 then next = nil end
- return ok, next
- end
-
- local function grab_charnum(next, res)
- table.insert(res, next)
- next = token.get_next()
- table.insert(res, next)
- next = get_expd_next()
- if next[1] == 10 then next = nil end
- return true, next
- end
-
- local function scan_with(delay, scanner)
- local function proc()
- if delay ~= 0 then
- if delay > 0 then delay = delay - 1 end
- return token.get_next()
- else
- local cont, back = scanner()
- if not cont then
- ltb.remove_from_callback("token_filter", "ltj@grab@num")
- end
- return back
- end
- end
- ltb.add_to_callback("token_filter", proc, "ltj@grab@num", 1)
- end
-
- local function scan_brace()
- scan_with(1, function()
- local next = token.get_next()
- if next[1] == 1 then
- return false, { tok_escape, next }
- elseif next[1] == 10 then
- return true, { next }
- else
- return false, { next }
- end
- end)
- end
-
- local function scan_number()
- scan_with(1, function()
- local next = get_expd_next()
- local res, ok = { tok_num }, false
- while true do
- if next[1] == 12 and (next[2] == 0x2B or next[2] == 0x2D) then
- table.insert(res, next)
- elseif next[1] ~= 10 then
- break
- end
- next = get_expd_next()
- end
- if next[1] == 12 and 0x30 <= next[2] and next[2] <= 0x39 then
- ok, next = grab_decimal(next, res)
- elseif next[1] == 12 and next[2] == 0x22 then
- ok, next = grab_hexa(next, res)
- elseif next[1] == 12 and next[2] == 0x27 then
- ok, next = grab_octal(next, res)
- elseif next[1] == 12 and next[2] == 0x60 then
- ok, next = grab_charnum(next, res)
- elseif next[1] == c_id_assign_int or next[1] == c_id_char_given then
- table.insert(res, next)
- ok, next = true, nil
- end
- if ok then
- table.insert(res, tok_num)
- else
- error_scan()
- res = { tok_escape }
- end
- if next then table.insert(res, next) end
- return false, res
- end)
- end
-
- ltjb.scan_brace = scan_brace
- ltjb.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]
-
- local function const_number(name)
- if name:sub(1, 1) == '\\' then name = name:sub(2) end
- return token.create(name)[2]
- end
-
- 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
-
- 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
-
- 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
-
- 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
-
- ltjb.const_number = const_number
- ltjb.count_number = count_number
- ltjb.attribute_number = attribute_number
- ltjb.dimen_number = dimen_number
- ltjb.skip_number = skip_number
-end
-
--------------------- getting next token
-local cstemp = nil
-local function get_cs(s)
- cstemp = token.csname_name(token.get_next())
- tex.sprint(cat_lp,'\\' .. s)
-end
-ltjb.get_cs = get_cs
-
-------------------- common error message
do
local function in_unicode(c, admit_math)
if lfs.isdir(testpath) then savepath = testpath; break end
end
- save_cache_luc = function (filename, t, serialized)
+ local function save_cache_luc(filename, t, serialized)
local fullpath = savepath .. '/' .. filename .. luc_suffix
local s = serialized or serialize(t, 'return', false)
if s then
end
end
- save_cache = function (filename, t)
+ local function save_cache(filename, t)
local fullpath = savepath .. '/' .. filename .. '.lua'
local s = serialize(t, 'return', false)
if s then
end
end
- local function load_cache_a (filename, outdate)
+ local function load_cache_a(filename, outdate)
local result
for _,v in pairs(path) do
local fn = join(v, cache_dir, filename)
end
end
- load_cache = function (filename, outdate)
+ local function load_cache(filename, outdate)
local r = load_cache_a(filename .. luc_suffix, outdate)
if r then
return r
end
end
+ local function remove_file_if_exist(name)
+ if os.rename(name,name) then os.remove(name) end
+ end
+ local function remove_cache (filename)
+ local fullpath_wo_ext = savepath .. '/' .. filename .. '.lu'
+ remove_file_if_exist(fullpath_wo_ext .. 'a')
+ remove_file_if_exist(fullpath_wo_ext .. 'b')
+ remove_file_if_exist(fullpath_wo_ext .. 'c')
+ end
+
+ ltjb.remove_cache = remove_cache
ltjb.load_cache = load_cache
ltjb.save_cache_luc = save_cache_luc
ltjb.save_cache = save_cache
ltjb.ltj_warning_no_line = ltj_warning_no_line
ltjb.ltj_error = ltj_error
+---- deterministic version of luatexbase.add_to_callback
+function ltjb.add_to_callback(name,fun,description,priority)
+ local priority= priority
+ if priority==nil then
+ priority=#luatexbase.callback_descriptions(name)+1
+ end
+ if(luatexbase.callbacktypes[name] == 3 and
+ priority == 1 and
+ #luatexbase.callback_descriptions(name)==1) then
+ luatexbase.module_warning("luatexbase",
+ "resetting exclusive callback: " .. name)
+ luatexbase.reset_callback(name)
+ end
+ local saved_callback={}
+ for k,v in ipairs(luatexbase.callback_descriptions(name)) do
+ if k >= priority then
+ local ff,dd = luatexbase.remove_from_callback(name, v)
+ saved_callback[#saved_callback+1]={ff,dd}
+ end
+ end
+ luatexbase.base_add_to_callback(name,fun,description)
+ for _,v in ipairs(saved_callback) do
+ luatexbase.base_add_to_callback(name,v[1],v[2])
+ end
+ return
+end
+
-------------------- mock of debug logger
if not ltjb.out_debug then
local function no_op() end
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