diff options
Diffstat (limited to 'luatexbase-mcb.dtx')
| -rw-r--r-- | luatexbase-mcb.dtx | 181 |
1 files changed, 49 insertions, 132 deletions
diff --git a/luatexbase-mcb.dtx b/luatexbase-mcb.dtx index cec69e9..0436b3a 100644 --- a/luatexbase-mcb.dtx +++ b/luatexbase-mcb.dtx @@ -193,20 +193,15 @@ luatexbase.provides_module({ % keys and a table of the registered functions a values. % % \begin{macrocode} - callbacklist = callbacklist or { } - % \end{macrocode} % % A table with the default functions of the created callbacks. See % \texttt{create} for further informations. % % \begin{macrocode} - lua_callbacks_defaults = { } - local format = string.format - % \end{macrocode} % % There are 4 types of callback: @@ -221,80 +216,74 @@ local format = string.format % \end{itemize} % % \begin{macrocode} - local list = 1 local data = 2 local first = 3 local simple = 4 - % \end{macrocode} % % \texttt{callbacktypes} is the list that contains the callbacks as keys % and the type (list or data) as values. % % \begin{macrocode} - 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, + 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, } - % \end{macrocode} % % In Lua\TeX\ version 0.43, a new callback called |process_output_buffer| % appeared, so we enable it. % % \begin{macrocode} - if tex.luatexversion > 42 then callbacktypes["process_output_buffer"] = data end - % \end{macrocode} % % As we overwrite \texttt{callback.register}, we save it as @@ -302,27 +291,19 @@ end % functions to write the errors or the logs. % % \begin{macrocode} - internalregister = internalregister or callback.register - -local callbacktypes = callbacktypes - log = log or function(...) luatexbase.module_log('luamcallbacks', format(...)) end - info = info or function(...) luatexbase.module_info('luamcallbacks', format(...)) end - warning = warning or function(...) luatexbase.module_warning('luamcallbacks', format(...)) end - error = error or function(...) luatexbase.module_error('luamcallbacks', format(...)) end - % \end{macrocode} % % A simple function we'll use later to understand the arguments of the @@ -330,7 +311,6 @@ end % corresponding to the string or nil. % % \begin{macrocode} - function str_to_type(str) if str == 'list' then return list @@ -344,11 +324,8 @@ function str_to_type(str) return nil end end - % \end{macrocode} % -% \begin{macro}{create} -% % This first function creates a new callback. The signature is % \texttt{create(name, ctype, default)} where \texttt{name} is the name of % the new callback to create, \texttt{ctype} is the type of callback, and @@ -361,7 +338,6 @@ end % callback must also call it, see next function. % % \begin{macrocode} - function create(name, ctype, default) if not name then error(format("unable to call callback, no proper name passed", name)) @@ -384,18 +360,12 @@ function create(name, ctype, default) lua_callbacks_defaults[name] = default callbacktypes[name] = ctype end - % \end{macrocode} % -% \end{macro} -% -% \begin{macro}{call} -% % This function calls a callback. It can only call a callback created by % the \texttt{create} function. % % \begin{macrocode} - function call(name, ...) if not name then error(format("unable to call callback, no proper name passed", name)) @@ -424,13 +394,8 @@ function call(name, ...) end return f(...) end - % \end{macrocode} % -% \end{macro} -% -% \begin{macro}{add} -% % The main function. The signature is \texttt{add (name, % func, description, priority)} with \texttt{name} being the name of the % callback in which the function is added; \texttt{func} is the added @@ -451,7 +416,6 @@ end % to their function themself. Most of the time, the priority is not needed. % % \begin{macrocode} - function add (name,func,description,priority) if type(func) ~= "function" then error("unable to add function, no proper function passed") @@ -513,20 +477,14 @@ function add (name,func,description,priority) format("inserting function '%s' at position %s in callback list for '%s'", description,priority,name)) end - % \end{macrocode} % -% \end{macro} -% -% \begin{macro}{get priority} -% % This function tells if a function has already been registered in a % callback, and gives its current priority. The arguments are the name of % the callback and the description of the function. If it has already been % registered, it gives its priority, and if not it returns false. % % \begin{macrocode} - function get_priority (name, description) if not name or name == "" or not callbacktypes[name] or not description then return 0 @@ -540,20 +498,14 @@ function get_priority (name, description) end return 0 end - % \end{macrocode} % -% \end{macro} -% -% \begin{macro}{remove} -% % The function that removes a function from a callback. The signature is % \texttt{mcallbacks.remove (name, description)} with \texttt{name} being % the name of callbacks, and description the description passed to % \texttt{mcallbacks.add}. % % \begin{macrocode} - function remove (name, description) if not name or name == "" then error("unable to remove function, no proper callback name passed") @@ -592,17 +544,11 @@ function remove (name, description) warning( format("unable to remove function '%s' from '%s'",description,name)) end - % \end{macrocode} % -% \end{macro} -% -% \begin{macro}{reset} -% % This function removes all the functions registered in a callback. % % \begin{macrocode} - function reset (name) if not name or name == "" then error("unable to reset, no proper callback name passed") @@ -622,19 +568,13 @@ function reset (name) callbacklist[name] = nil end end - % \end{macrocode} % -% \end{macro} -% % This function and the following ones are only internal. This one is the % handler for the first type of callbacks: the ones that take a list head % and return true, false, or a new list head. % -% \begin{macro}{listhandler} -% % \begin{macrocode} - function listhandler (name) return function(head,...) local l = callbacklist[name] @@ -665,17 +605,11 @@ function listhandler (name) end end end - % \end{macrocode} % -% \end{macro} -% % The handler for callbacks taking datas and returning modified ones. % -% \begin{macro}{datahandler} -% % \begin{macrocode} - function datahandler (name) return function(data,...) local l = callbacklist[name] @@ -687,19 +621,13 @@ function datahandler (name) return data end end - % \end{macrocode} % -% \end{macro} -% % This function is for the handlers that don't support more than one % functions in them. In this case we only call the first function of the % list. % -% \begin{macro}{firsthandler} -% % \begin{macrocode} - function firsthandler (name) return function(...) local l = callbacklist[name] @@ -711,17 +639,11 @@ function firsthandler (name) end end end - % \end{macrocode} % -% \end{macro} -% % Handler for simple functions that don't return anything. % -% \begin{macro}{simplehandler} -% % \begin{macrocode} - function simplehandler (name) return function(...) local l = callbacklist[name] @@ -732,16 +654,12 @@ function simplehandler (name) end end end - % \end{macrocode} % -% \end{macro} -% % Finally we add some functions to the \texttt{callback} module, and we % overwrite \texttt{callback.register} so that it outputs an error. % % \begin{macrocode} - callback.add = add callback.remove = remove callback.reset = reset @@ -752,12 +670,11 @@ callback.get_priority = get_priority callback.register = function (...) error("function callback.register has been deleted by luamcallbacks, please use callback.add instead.") end - % \end{macrocode} % -% \iffalse +% \begin{macrocode} %</lua> -% \fi +% \end{macrocode} % % \section{Test files} % |