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authorKarl Berry <karl@freefriends.org>2015-10-01 22:00:12 +0000
committerKarl Berry <karl@freefriends.org>2015-10-01 22:00:12 +0000
commitb0a27fa1b235b8769c32d6a4af90697503bc5f7f (patch)
tree8d46da006822aaf3f3637823712a86f545512feb /Master/texmf-dist/tex/latex/base/ltluatex.lua
parentdc8208998ecb52e2206b7943b322681502dd0ced (diff)
latex 2015/10/01
git-svn-id: svn://tug.org/texlive/trunk@38512 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Master/texmf-dist/tex/latex/base/ltluatex.lua')
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diff --git a/Master/texmf-dist/tex/latex/base/ltluatex.lua b/Master/texmf-dist/tex/latex/base/ltluatex.lua
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+--
+-- This is file `ltluatex.lua',
+-- generated with the docstrip utility.
+--
+-- The original source files were:
+--
+-- ltluatex.dtx (with options: `lua')
+--
+-- This is a generated file.
+--
+-- The source is maintained by the LaTeX Project team and bug
+-- reports for it can be opened at http://latex-project.org/bugs.html
+-- (but please observe conditions on bug reports sent to that address!)
+--
+--
+-- Copyright 2015
+-- The LaTeX3 Project and any individual authors listed elsewhere
+-- in this file.
+--
+-- This file was generated from file(s) of the LaTeX base system.
+-- --------------------------------------------------------------
+--
+-- It may be distributed and/or modified under the
+-- conditions of the LaTeX Project Public License, either version 1.3c
+-- of this license or (at your option) any later version.
+-- The latest version of this license is in
+-- http://www.latex-project.org/lppl.txt
+-- and version 1.3c or later is part of all distributions of LaTeX
+-- version 2005/12/01 or later.
+--
+-- This file has the LPPL maintenance status "maintained".
+--
+-- This file may only be distributed together with a copy of the LaTeX
+-- base system. You may however distribute the LaTeX base system without
+-- such generated files.
+--
+-- The list of all files belonging to the LaTeX base distribution is
+-- given in the file `manifest.txt'. See also `legal.txt' for additional
+-- information.
+--
+-- The list of derived (unpacked) files belonging to the distribution
+-- and covered by LPPL is defined by the unpacking scripts (with
+-- extension .ins) which are part of the distribution.
+luatexbase = luatexbase or { }
+local luatexbase = luatexbase
+local string_gsub = string.gsub
+local tex_count = tex.count
+local tex_setattribute = tex.setattribute
+local tex_setcount = tex.setcount
+local texio_write_nl = texio.write_nl
+local modules = modules or { }
+local function provides_module(info)
+ if not (info and info.name) then
+ luatexbase_error("Missing module name for provides_modules")
+ return
+ end
+ local function spaced(text)
+ return text and (" " .. text) or ""
+ end
+ texio_write_nl(
+ "log",
+ "Lua module: " .. info.name
+ .. spaced(info.date)
+ .. spaced(info.version)
+ .. spaced(info.description)
+ )
+ modules[info.name] = info
+end
+luatexbase.provides_module = provides_module
+local function msg_format(mod, msg_type, text)
+ local leader = ""
+ local cont
+ if mod == "LaTeX" then
+ cont = string_gsub(leader, ".", " ")
+ leader = leader .. "LaTeX: "
+ else
+ first_head = leader .. "Module " .. msg_type
+ cont = "(" .. mod .. ")"
+ .. string_gsub(first_head, ".", " ")
+ first_head = leader .. "Module " .. mod .. " " .. msg_type .. ":"
+ end
+ if msg_type == "Error" then
+ first_head = "\n" .. first_head
+ end
+ if string.sub(text,-1) ~= "\n" then
+ text = text .. " "
+ end
+ return first_head .. " "
+ .. string_gsub(
+ text
+ .. "on input line "
+ .. tex.inputlineno, "\n", "\n" .. cont .. " "
+ )
+ .. "\n"
+end
+local function module_info(mod, text)
+ texio_write_nl("log", msg_format(mod, "Info", text))
+end
+luatexbase.module_info = module_info
+local function module_warning(mod, text)
+ texio_write_nl("term and log",msg_format(mod, "Warning", text))
+end
+luatexbase.module_warning = module_warning
+local function module_error(mod, text)
+ error(msg_format(mod, "Error", text))
+end
+luatexbase.module_error = module_error
+local function luatexbase_warning(text)
+ module_warning("luatexbase", text)
+end
+local function luatexbase_error(text)
+ module_error("luatexbase", text)
+end
+local luaregisterbasetable = { }
+local registermap = {
+ attributezero = "assign_attr" ,
+ charzero = "char_given" ,
+ CountZero = "assign_int" ,
+ dimenzero = "assign_dimen" ,
+ mathcharzero = "math_given" ,
+ muskipzero = "assign_mu_skip" ,
+ skipzero = "assign_skip" ,
+ tokszero = "assign_toks" ,
+}
+local i, j
+local createtoken
+if tex.luatexversion >79 then
+ createtoken = newtoken.create
+end
+local hashtokens = tex.hashtokens
+local luatexversion = tex.luatexversion
+for i,j in pairs (registermap) do
+ if luatexversion < 80 then
+ luaregisterbasetable[hashtokens()[i][1]] =
+ hashtokens()[i][2]
+ else
+ luaregisterbasetable[j] = createtoken(i).mode
+ end
+end
+local registernumber
+if luatexversion < 80 then
+ function registernumber(name)
+ local nt = hashtokens()[name]
+ if(nt and luaregisterbasetable[nt[1]]) then
+ return nt[2] - luaregisterbasetable[nt[1]]
+ else
+ return false
+ end
+ end
+else
+ function registernumber(name)
+ local nt = createtoken(name)
+ if(luaregisterbasetable[nt.cmdname]) then
+ return nt.mode - luaregisterbasetable[nt.cmdname]
+ else
+ return false
+ end
+ end
+end
+luatexbase.registernumber = registernumber
+local attributes=setmetatable(
+{},
+{
+__index = function(t,key)
+return registernumber(key) or nil
+end}
+)
+luatexbase.attributes=attributes
+local function new_attribute(name)
+ tex_setcount("global", "e@alloc@attribute@count",
+ tex_count["e@alloc@attribute@count"] + 1)
+ if tex_count["e@alloc@attribute@count"] > 65534 then
+ luatexbase_error("No room for a new \\attribute")
+ return -1
+ end
+ attributes[name]= tex_count["e@alloc@attribute@count"]
+ texio_write_nl("Lua-only attribute " .. name .. " = " ..
+ tex_count["e@alloc@attribute@count"])
+ return tex_count["e@alloc@attribute@count"]
+end
+luatexbase.new_attribute = new_attribute
+local function new_whatsit(name)
+ tex_setcount("global", "e@alloc@whatsit@count",
+ tex_count["e@alloc@whatsit@count"] + 1)
+ if tex_count["e@alloc@whatsit@count"] > 65534 then
+ luatexbase_error("No room for a new custom whatsit")
+ return -1
+ end
+ texio_write_nl("Custom whatsit " .. (name or "") .. " = " ..
+ tex_count["e@alloc@whatsit@count"])
+ return tex_count["e@alloc@whatsit@count"]
+end
+luatexbase.new_whatsit = new_whatsit
+local function new_bytecode(name)
+ tex_setcount("global", "e@alloc@bytecode@count",
+ tex_count["e@alloc@bytecode@count"] + 1)
+ if tex_count["e@alloc@bytecode@count"] > 65534 then
+ luatexbase_error("No room for a new bytecode register")
+ return -1
+ end
+ texio_write_nl("Lua bytecode " .. (name or "") .. " = " ..
+ tex_count["e@alloc@bytecode@count"])
+ return tex_count["e@alloc@bytecode@count"]
+end
+luatexbase.new_bytecode = new_bytecode
+local function new_chunkname(name)
+ tex_setcount("global", "e@alloc@luachunk@count",
+ tex_count["e@alloc@luachunk@count"] + 1)
+ local chunkname_count = tex_count["e@alloc@luachunk@count"]
+ chunkname_count = chunkname_count + 1
+ if chunkname_count > 65534 then
+ luatexbase_error("No room for a new chunkname")
+ return -1
+ end
+ lua.name[chunkname_count]=name
+ texio_write_nl("Lua chunkname " .. (name or "") .. " = " ..
+ chunkname_count .. "\n")
+ return chunkname_count
+end
+luatexbase.new_chunkname = new_chunkname
+local callbacklist = callbacklist or { }
+local list, data, exclusive, simple = 1, 2, 3, 4
+local types = {
+ list = list,
+ data = data,
+ exclusive = exclusive,
+ simple = simple,
+}
+local callbacktypes = callbacktypes or {
+ find_read_file = exclusive,
+ find_write_file = exclusive,
+ find_font_file = data,
+ find_output_file = data,
+ find_format_file = data,
+ find_vf_file = data,
+ find_map_file = data,
+ find_enc_file = data,
+ find_sfd_file = data,
+ find_pk_file = data,
+ find_data_file = data,
+ find_opentype_file = data,
+ find_truetype_file = data,
+ find_type1_file = data,
+ find_image_file = data,
+ open_read_file = exclusive,
+ read_font_file = exclusive,
+ read_vf_file = exclusive,
+ read_map_file = exclusive,
+ read_enc_file = exclusive,
+ read_sfd_file = exclusive,
+ read_pk_file = exclusive,
+ read_data_file = exclusive,
+ read_truetype_file = exclusive,
+ read_type1_file = exclusive,
+ read_opentype_file = exclusive,
+ process_input_buffer = data,
+ process_output_buffer = data,
+ process_jobname = data,
+ token_filter = exclusive,
+ buildpage_filter = simple,
+ pre_linebreak_filter = list,
+ linebreak_filter = list,
+ post_linebreak_filter = list,
+ hpack_filter = list,
+ vpack_filter = list,
+ pre_output_filter = list,
+ hyphenate = simple,
+ ligaturing = simple,
+ kerning = simple,
+ mlist_to_hlist = list,
+ pre_dump = simple,
+ start_run = simple,
+ stop_run = simple,
+ start_page_number = simple,
+ stop_page_number = simple,
+ show_error_hook = simple,
+ show_error_message = simple,
+ show_lua_error_hook = simple,
+ start_file = simple,
+ stop_file = simple,
+ finish_pdffile = data,
+ finish_pdfpage = data,
+ define_font = exclusive,
+ find_cidmap_file = data,
+ pdf_stream_filter_callback = data,
+}
+luatexbase.callbacktypes=callbacktypes
+local callback_register = callback_register or callback.register
+function callback.register()
+ luatexbase_error("Attempt to use callback.register() directly\n")
+end
+local function data_handler(name)
+ return function(data, ...)
+ local i
+ for _,i in ipairs(callbacklist[name]) do
+ data = i.func(data,...)
+ end
+ return data
+ end
+end
+local function exclusive_handler(name)
+ return function(...)
+ return callbacklist[name][1].func(...)
+ end
+end
+local function list_handler(name)
+ return function(head, ...)
+ local ret
+ local alltrue = true
+ local i
+ for _,i in ipairs(callbacklist[name]) do
+ ret = i.func(head, ...)
+ if ret == false then
+ luatexbase_warning(
+ "Function `i.description' returned false\n"
+ .. "in callback `name'"
+ )
+ break
+ end
+ if ret ~= true then
+ alltrue = false
+ head = ret
+ end
+ end
+ return alltrue and true or head
+ end
+end
+local function simple_handler(name)
+ return function(...)
+ local i
+ for _,i in ipairs(callbacklist[name]) do
+ i.func(...)
+ end
+ end
+end
+local handlers = {
+ [data] = data_handler,
+ [exclusive] = exclusive_handler,
+ [list] = list_handler,
+ [simple] = simple_handler,
+}
+local user_callbacks_defaults = { }
+local function create_callback(name, ctype, default)
+ if not name or
+ name == "" or
+ callbacktypes[name] or
+ not(default == false or type(default) == "function")
+ then
+ luatexbase_error("Unable to create callback " .. name)
+ end
+ user_callbacks_defaults[name] = default
+ callbacktypes[name] = types[ctype]
+end
+luatexbase.create_callback = create_callback
+local function call_callback(name,...)
+ if not name or
+ name == "" or
+ user_callbacks_defaults[name] == nil
+ then
+ luatexbase_error("Unable to call callback " .. name)
+ end
+ local l = callbacklist[name]
+ local f
+ if not l then
+ f = user_callbacks_defaults[name]
+ if l == false then
+ return nil
+ end
+ else
+ f = handlers[callbacktypes[name]](name)
+ end
+ return f(...)
+end
+luatexbase.call_callback=call_callback
+local function add_to_callback(name, func, description)
+ if
+ not name or
+ name == "" or
+ not callbacktypes[name] or
+ type(func) ~= "function" or
+ not description or
+ description == "" then
+ luatexbase_error(
+ "Unable to register callback.\n\n"
+ .. "Correct usage:\n"
+ .. "add_to_callback(<callback>, <function>, <description>)"
+ )
+ return
+ end
+ local l = callbacklist[name]
+ if l == nil then
+ l = { }
+ callbacklist[name] = l
+ if user_callbacks_defaults[name] == nil then
+ callback_register(name, handlers[callbacktypes[name]](name))
+ end
+ end
+ local f = {
+ func = func,
+ description = description,
+ }
+ local priority = #l + 1
+ if callbacktypes[name] == exclusive then
+ if #l == 1 then
+ luatexbase_error(
+ "Cannot add second callback to exclusive function\n`" ..
+ name .. "'")
+ end
+ end
+ table.insert(l, priority, f)
+ texio_write_nl(
+ "Inserting `" .. description .. "' at position "
+ .. priority .. " in `" .. name .. "'."
+ )
+end
+luatexbase.add_to_callback = add_to_callback
+local function remove_from_callback(name, description)
+ if
+ not name or
+ name == "" or
+ not callbacktypes[name] or
+ not description or
+ description == "" then
+ luatexbase_error(
+ "Unable to remove function from callback.\n\n"
+ .. "Correct usage:\n"
+ .. "remove_from_callback(<callback>, <description>)"
+ )
+ return
+ end
+ local l = callbacklist[name]
+ if not l then
+ luatexbase_error(
+ "No callback list for `" .. name .. "'\n")
+ end
+ local index = false
+ local i,j
+ local cb = {}
+ for i,j in ipairs(l) do
+ if j.description == description then
+ index = i
+ break
+ end
+ end
+ if not index then
+ luatexbase_error(
+ "No callback `" .. description .. "' registered for `" ..
+ name .. "'\n")
+ return
+ end
+ cb = l[index]
+ table.remove(l, index)
+ texio_write_nl(
+ "Removing `" .. description .. "' from `" .. name .. "'."
+ )
+ if #l == 0 then
+ callbacklist[name] = nil
+ callback_register(name, nil)
+ end
+ return cb.func,cb.description
+end
+luatexbase.remove_from_callback = remove_from_callback
+local function in_callback(name, description)
+ if not name
+ or name == ""
+ or not callbacktypes[name]
+ or not description then
+ return false
+ end
+ local i
+ for _, i in pairs(callbacklist[name]) do
+ if i.description == description then
+ return true
+ end
+ end
+ return false
+end
+luatexbase.in_callback = in_callback
+local function disable_callback(name)
+ if(callbacklist[name] == nil) then
+ callback_register(name, false)
+ else
+ luatexbase_error("Callback list for " .. name .. " not empty")
+ end
+end
+luatexbase.disable_callback = disable_callback
+local function callback_descriptions (name)
+ local d = {}
+ if not name
+ or name == ""
+ or not callbacktypes[name]
+ then
+ return d
+ else
+ local i
+ for k, i in pairs(callbacklist[name] or {}) do
+ d[k]= i.description
+ end
+ end
+ return d
+end
+luatexbase.callback_descriptions =callback_descriptions