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-rw-r--r--Master/texmf-dist/tex/luatex/luatexbase/mcb.lua366
1 files changed, 160 insertions, 206 deletions
diff --git a/Master/texmf-dist/tex/luatex/luatexbase/mcb.lua b/Master/texmf-dist/tex/luatex/luatexbase/mcb.lua
index ff4605af30d..2b65b90a22d 100644
--- a/Master/texmf-dist/tex/luatex/luatexbase/mcb.lua
+++ b/Master/texmf-dist/tex/luatex/luatexbase/mcb.lua
@@ -12,198 +12,154 @@
-- See source file 'luatexbase-mcb.dtx' for details.
--
module('luatexbase', package.seeall)
-luatexbase.provides_module({
- name = "luamcallbacks",
+local err, warning, info = luatexbase.provides_module({
+ name = "luatexbase-mcb",
version = 0.2,
date = "2010/05/12",
description = "register several functions in a callback",
- author = "Hans Hagen, Elie Roux and Manuel P^^c3^^a9gourie-Gonnard",
- copyright = "Hans Hagen, Elie Roux and Manuel P^^c3^^a9gourie-Gonnard",
+ author = "Hans Hagen, Elie Roux and Manuel Pegourie-Gonnard",
+ copyright = "Hans Hagen, Elie Roux and Manuel Pegourie-Gonnard",
license = "CC0",
})
-local log = log or function(...)
- luatexbase.module_log('luamcallbacks', string.format(...))
-end
-local info = info or function(...)
- luatexbase.module_info('luamcallbacks', string.format(...))
-end
-local warning = warning or function(...)
- luatexbase.module_warning('luamcallbacks', string.format(...))
-end
-local err = err or function(...)
- luatexbase.module_error('luamcallbacks', string.format(...))
-end
local callbacklist = callbacklist or { }
-local lua_callbacks_defaults = { }
-local list = 1
-local data = 2
-local first = 3
-local simple = 4
+local list, data, first, simple = 1, 2, 3, 4
+local types = {
+ list = list,
+ data = data,
+ first = first,
+ simple = simple,
+}
local callbacktypes = callbacktypes or {
- buildpage_filter = simple,
- token_filter = first,
- pre_output_filter = list,
- hpack_filter = list,
- process_input_buffer = data,
- mlist_to_hlist = list,
- vpack_filter = list,
- define_font = first,
- open_read_file = first,
- linebreak_filter = list,
- post_linebreak_filter = list,
- pre_linebreak_filter = list,
- start_page_number = simple,
- stop_page_number = simple,
- start_run = simple,
- show_error_hook = simple,
- stop_run = simple,
- hyphenate = simple,
- ligaturing = simple,
- kerning = data,
- find_write_file = first,
- find_read_file = first,
- find_vf_file = data,
- find_map_file = data,
- find_format_file = data,
- find_opentype_file = data,
- find_output_file = data,
- find_truetype_file = data,
- find_type1_file = data,
- find_data_file = data,
- find_pk_file = data,
- find_font_file = data,
- find_image_file = data,
- find_ocp_file = data,
- find_sfd_file = data,
- find_enc_file = data,
- read_sfd_file = first,
- read_map_file = first,
- read_pk_file = first,
- read_enc_file = first,
- read_vf_file = first,
- read_ocp_file = first,
- read_opentype_file = first,
- read_truetype_file = first,
- read_font_file = first,
- read_type1_file = first,
- read_data_file = first,
+ find_read_file = first,
+ find_write_file = first,
+ find_font_file = data,
+ find_output_file = data,
+ find_format_file = data,
+ find_vf_file = data,
+ find_ocp_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 = first,
+ read_font_file = first,
+ read_vf_file = first,
+ read_ocp_file = first,
+ read_map_file = first,
+ read_enc_file = first,
+ read_sfd_file = first,
+ read_pk_file = first,
+ read_data_file = first,
+ read_truetype_file = first,
+ read_type1_file = first,
+ read_opentype_file = first,
+ process_input_buffer = data,
+ process_output_buffer = data,
+ token_filter = first,
+ 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,
+ start_run = simple,
+ stop_run = simple,
+ start_page_number = simple,
+ stop_page_number = simple,
+ show_error_hook = simple,
+ define_font = first,
}
-if luatexbase.luatexversion > 42 then
- callbacktypes["process_output_buffer"] = data
+local lua_callbacks_defaults = { }
+local original_register = original_register or callback.register
+callback.register = function ()
+ err("function callback.register has been trapped,\n"
+ .."please use luatexbase.add_to_callback instead.")
end
-local internalregister = internalregister or callback.register
-local function str_to_type(str)
- if str == 'list' then
- return list
- elseif str == 'data' then
- return data
- elseif str == 'first' then
- return first
- elseif str == 'simple' then
- return simple
- else
- return nil
- end
+local function register_callback(...)
+ return assert(original_register(...))
end
--- local
-function listhandler (name)
+local function listhandler (name)
return function(head,...)
- local l = callbacklist[name]
- if l then
- local done = true
- for _, f in ipairs(l) do
- -- the returned value is either true or a new head plus true
- rtv1, rtv2 = f.func(head,...)
- if type(rtv1) == 'boolean' then
- done = rtv1
- elseif type (rtv1) == 'userdata' then
- head = rtv1
- end
- if type(rtv2) == 'boolean' then
- done = rtv2
- elseif type(rtv2) == 'userdata' then
- head = rtv2
- end
- if done == false then
- err("function \"%s\" returned false in callback '%s'",
- f.description, name)
- end
+ local ret
+ local alltrue = true
+ for _, f in ipairs(callbacklist[name]) do
+ ret = f.func(head, ...)
+ if ret == false then
+ warn("function '%s' returned false\nin callback '%s'",
+ f.description, name)
+ break
+ end
+ if ret ~= true then
+ alltrue = false
+ head = ret
end
- return head, done
- else
- return head, false
end
+ return alltrue and true or head
end
end
local function datahandler (name)
- return function(data,...)
- local l = callbacklist[name]
- if l then
- for _, f in ipairs(l) do
- data = f.func(data,...)
- end
+ return function(data, ...)
+ for _, f in ipairs(callbacklist[name]) do
+ data = f.func(data, ...)
end
return data
end
end
local function firsthandler (name)
return function(...)
- local l = callbacklist[name]
- if l then
- local f = l[1].func
- return f(...)
- else
- return nil, false
- end
+ return callbacklist[name][1].func(...)
end
end
local function simplehandler (name)
return function(...)
- local l = callbacklist[name]
- if l then
- for _, f in ipairs(l) do
- f.func(...)
- end
+ for _, f in ipairs(callbacklist[name]) do
+ f.func(...)
end
end
end
+local handlers = {
+ [list] = listhandler,
+ [data] = datahandler,
+ [first] = firsthandler,
+ [simple] = simplehandler,
+}
function add_to_callback (name,func,description,priority)
if type(func) ~= "function" then
- err("unable to add function, no proper function passed")
- return
+ return err("unable to add function:\nno proper function passed")
end
if not name or name == "" then
- err("unable to add function, no proper callback name passed")
+ err("unable to add function:\nno proper callback name passed")
return
elseif not callbacktypes[name] then
- err("unable to add function, '%s' is not a valid callback", name)
+ err("unable to add function:\n'%s' is not a valid callback", name)
return
end
if not description or description == "" then
- err("unable to add function to '%s', no proper description passed",
+ err("unable to add function to '%s':\nno proper description passed",
name)
return
end
- if priority_in_callback(name, description) ~= 0 then
- warning("function '%s' already registered in callback '%s'",
+ if priority_in_callback(name, description) then
+ err("function '%s' already registered\nin callback '%s'",
description, name)
+ return
end
local l = callbacklist[name]
if not l then
l = {}
callbacklist[name] = l
if not lua_callbacks_defaults[name] then
- if callbacktypes[name] == list then
- internalregister(name, listhandler(name))
- elseif callbacktypes[name] == data then
- internalregister(name, datahandler(name))
- elseif callbacktypes[name] == simple then
- internalregister(name, simplehandler(name))
- elseif callbacktypes[name] == first then
- internalregister(name, firsthandler(name))
- else
- err("unknown callback type")
- end
+ register_callback(name, handlers[callbacktypes[name]](name))
end
end
local f = {
@@ -216,25 +172,25 @@ function add_to_callback (name,func,description,priority)
elseif priority < 1 then
priority = 1
end
- if callbacktypes[name] == first and (priority ~= 1 or #l ~= 0) then
- warning("several callbacks registered in callback '%s', "
- .."only the first function will be active.", name)
- end
table.insert(l,priority,f)
- log("inserting function '%s' at position %s in callback list for '%s'",
+ if callbacktypes[name] == first and #l ~= 1 then
+ warning("several functions in '%s',\n"
+ .."only one will be active.", name)
+ end
+ info("inserting '%s'\nat position %s in '%s'",
description, priority, name)
end
function remove_from_callback (name, description)
if not name or name == "" then
- err("unable to remove function, no proper callback name passed")
+ err("unable to remove function:\nno proper callback name passed")
return
elseif not callbacktypes[name] then
- err("unable to remove function, '%s' is not a valid callback", name)
+ err("unable to remove function:\n'%s' is not a valid callback", name)
return
end
if not description or description == "" then
err(
- "unable to remove function from '%s', no proper description passed",
+ "unable to remove function from '%s':\nno proper description passed",
name)
return
end
@@ -243,68 +199,91 @@ function remove_from_callback (name, description)
err("no callback list for '%s'",name)
return
end
+ local index = false
for k,v in ipairs(l) do
if v.description == description then
- table.remove(l,k)
- log("removing function '%s' from '%s'",description,name)
- if not next(l) then
- callbacklist[name] = nil
- if not lua_callbacks_defaults[name] then
- internalregister(name, nil)
- end
- end
- return
+ index = k
+ break
end
end
- warning("unable to remove function '%s' from '%s'",description,name)
+ if not index then
+ err("unable to remove '%s'\nfrom '%s'", description, name)
+ return
+ end
+ table.remove(l, index)
+ info("removing '%s'\nfrom '%s'", description, name)
+ if table.maxn(l) == 0 then
+ callbacklist[name] = nil
+ if not lua_callbacks_defaults[name] then
+ register_callback(name, nil)
+ end
+ end
+ return
end
-function reset_callback (name)
+function reset_callback (name, make_false)
if not name or name == "" then
- err("unable to reset, no proper callback name passed")
+ err("unable to reset:\nno proper callback name passed")
return
elseif not callbacktypes[name] then
- err("reset error, '%s' is not a valid callback", name)
+ err("unable to reset '%s':\nis not a valid callback", name)
return
end
+ info("resetting callback '%s'", name)
+ callbacklist[name] = nil
if not lua_callbacks_defaults[name] then
- internalregister(name, nil)
+ if make_false == true then
+ info("setting '%s' to false", name)
+ register_callback(name, false)
+ else
+ register_callback(name, nil)
+ end
+ end
+end
+function priority_in_callback (name, description)
+ if not name or name == ""
+ or not callbacktypes[name]
+ or not description then
+ return false
end
local l = callbacklist[name]
- if l then
- log("resetting callback list '%s'",name)
- callbacklist[name] = nil
+ if not l then return false end
+ for p, f in pairs(l) do
+ if f.description == description then
+ return p
+ end
end
+ return false
end
function create_callback(name, ctype, default)
if not name then
- err("unable to call callback, no proper name passed", name)
+ err("unable to call callback:\nno proper name passed", name)
return nil
end
if not ctype or not default then
- err("unable to create callback '%s': "
+ err("unable to create callback '%s':\n"
.."callbacktype or default function not specified", name)
return nil
end
if callbacktypes[name] then
- err("unable to create callback '%s', callback already exists", name)
+ err("unable to create callback '%s':\ncallback already exists", name)
return nil
end
- local temp = str_to_type(ctype)
- if not temp then
- err("unable to create callback '%s', type '%s' undefined", name, ctype)
+ ctype = types[ctype]
+ if not ctype then
+ err("unable to create callback '%s':\ntype '%s' undefined", name, ctype)
return nil
end
- ctype = temp
+ info("creating '%s' type %s", name, ctype)
lua_callbacks_defaults[name] = default
callbacktypes[name] = ctype
end
function call_callback(name, ...)
if not name then
- err("unable to call callback, no proper name passed", name)
+ err("unable to call callback:\nno proper name passed", name)
return nil
end
if not lua_callbacks_defaults[name] then
- err("unable to call lua callback '%s', unknown callback", name)
+ err("unable to call lua callback '%s':\nunknown callback", name)
return nil
end
local l = callbacklist[name]
@@ -312,38 +291,13 @@ function call_callback(name, ...)
if not l then
f = lua_callbacks_defaults[name]
else
- if callbacktypes[name] == list then
- f = listhandler(name)
- elseif callbacktypes[name] == data then
- f = datahandler(name)
- elseif callbacktypes[name] == simple then
- f = simplehandler(name)
- elseif callbacktypes[name] == first then
- f = firsthandler(name)
- else
+ f = handlers[callbacktypes[name]](name)
+ if not f then
err("unknown callback type")
+ return
end
end
return f(...)
end
-function priority_in_callback (name, description)
- if not name or name == ""
- or not callbacktypes[name]
- or not description then
- return 0
- end
- local l = callbacklist[name]
- if not l then return 0 end
- for p, f in pairs(l) do
- if f.description == description then
- return p
- end
- end
- return 0
-end
-callback.register = function ()
-err("function callback.register has been deleted by luamcallbacks, "
-.."please use luatexbase.add_to_callback instead.")
-end
--
-- End of File `mcb.lua'.