ref: 2fe3b28f86ed4aa291fb8a620b948abe9c6a1f84
dir: /sys/src/cmd/python/Doc/tools/py2texi.el/
;;; py2texi.el -- Conversion of Python LaTeX documentation to Texinfo
;; Copyright (C) 2006 Jeroen Dekkers <[email protected]>
;; Copyright (C) 1998, 1999, 2001, 2002 Milan Zamazal
;; Author: Milan Zamazal <[email protected]>
;; Version: $Id: py2texi.el 52974 2006-12-09 12:13:02Z matthias.klose $
;; Keywords: python
;; COPYRIGHT NOTICE
;;
;; This program is free software; you can redistribute it and/or modify it
;; under the terms of the GNU General Public License as published by the Free
;; Software Foundation; either version 2, or (at your option) any later
;; version.
;;
;; This program is distributed in the hope that it will be useful, but
;; WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
;; or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
;; for more details.
;;
;; You can find the GNU General Public License at
;; http://www.gnu.org/copyleft/gpl.html
;; or you can write to the Free Software Foundation, Inc., 59 Temple Place,
;; Suite 330, Boston, MA 02111-1307, USA.
;;; Commentary:
;; This is a Q&D hack for conversion of Python manuals to on-line help format.
;; I desperately needed usable online documenta for Python, so I wrote this.
;; The result code is ugly and need not contain complete information from
;; Python manuals. I apologize for my ignorance, especially ignorance to
;; python.sty. Improvements of this convertor are welcomed.
;; How to use it:
;; Load this file and apply `M-x py2texi'. You will be asked for name of a
;; file to be converted.
;; Where to find it:
;; New versions of this code might be found at
;; http://www.zamazal.org/software/python/py2texi/ .
;;; Code:
(require 'texinfo)
(eval-when-compile
(require 'cl))
(defvar py2texi-python-version "2.2"
"What to substitute for the \\version macro.")
(defvar py2texi-python-short-version
(progn
(string-match "[0-9]+\\.[0-9]+" py2texi-python-version)
(match-string 0 py2texi-python-version))
"Short version number, usually set by the LaTeX commands.")
(defvar py2texi-texi-file-name nil
"If non-nil, that string is used as the name of the Texinfo file.
Otherwise a generated Texinfo file name is used.")
(defvar py2texi-info-file-name nil
"If non-nil, that string is used as the name of the Info file.
Otherwise a generated Info file name is used.")
(defvar py2texi-stop-on-problems nil
"*If non-nil, stop when you encouter soft problem.")
(defconst py2texi-environments
'(("abstract" 0 "@quotation" "@end quotation\n")
("center" 0 "" "")
("cfuncdesc" 3
(progn (setq findex t)
"\n@table @code\n@item \\1 \\2(\\3)\n@findex \\2\n")
"@end table\n")
("cmemberdesc" 3
"\n@table @code\n@item \\2 \\3\n"
"@end table\n")
("classdesc" 2
(progn (setq obindex t)
"\n@table @code\n@item \\1(\\2)\n@obindex \\1\n")
"@end table\n")
("classdesc*" 1
(progn (setq obindex t)
"\n@table @code\n@item \\1\n@obindex \\1\n")
"@end table\n")
("comment" 0 "\n@ignore\n" "\n@end ignore\n")
("csimplemacrodesc" 1
(progn (setq cindex t)
"\n@table @code\n@item \\1\n@cindex \\1\n")
"@end table\n")
("ctypedesc" 1
(progn (setq cindex t)
"\n@table @code\n@item \\1\n@cindex \\1\n")
"@end table\n")
("cvardesc" 2
(progn (setq findex t)
"\n@table @code\n@item \\1 \\2\n@findex \\2\n")
"@end table\n")
("datadesc" 1
(progn (setq findex t)
"\n@table @code\n@item \\1\n@findex \\1\n")
"@end table\n")
("datadescni" 1 "\n@table @code\n@item \\1\n" "@end table\n")
("definitions" 0 "@table @dfn" "@end table\n")
("description" 0 "@table @samp" "@end table\n")
("displaymath" 0 "" "")
("document" 0
(concat "@defcodeindex mo\n"
"@defcodeindex ob\n"
"@titlepage\n"
(format "@title " title "\n")
(format "@author " author "\n")
"@page\n"
author-address
"@end titlepage\n"
"@node Top, , , (dir)\n")
(concat "@indices\n"
"@contents\n"
"@bye\n"))
("enumerate" 0 "@enumerate" "@end enumerate")
("envdesc" 2 (concat "\n@table @code"
"\n@item @backslash{}begin@{\\1@}\\2")
"@end table\n")
("excdesc" 1
(progn (setq obindex t)
"\n@table @code\n@item \\1\n@obindex \\1\n")
"@end table\n")
("excclassdesc" 2
(progn (setq obindex t)
"\n@table @code\n@item \\1(\\2)\n@obindex \\1\n")
"@end table\n")
("flushleft" 0 "" "")
("fulllineitems" 0 "\n@table @code\n" "@end table\n")
("funcdesc" 2
(progn (setq findex t)
"\n@table @code\n@item \\1(\\2)\n@findex \\1\n")
"@end table\n")
("funcdescni" 2 "\n@table @code\n@item \\1(\\2)\n" "@end table\n")
("itemize" 0 "@itemize @bullet" "@end itemize\n")
("list" 2 "\n@table @code\n" "@end table\n")
("longtableii" 4 (concat "@multitable @columnfractions .5 .5\n"
"@item \\3 @tab \\4\n"
"@item ------- @tab ------ \n")
"@end multitable\n")
("longtableiii" 5 (concat "@multitable @columnfractions .33 .33 .33\n"
"@item \\3 @tab \\4 @tab \\5\n"
"@item ------- @tab ------ @tab ------\n")
"@end multitable\n")
("macrodesc" 2 (concat "\n@table @code"
"\n@item \\1@{\\2@}")
"@end table\n")
("memberdesc" 1
(progn (setq findex t)
"\n@table @code\n@item \\1\n@findex \\1\n")
"@end table\n")
("memberdescni" 1 "\n@table @code\n@item \\1\n" "@end table\n")
("methoddesc" 2
(progn (setq findex t)
"\n@table @code\n@item \\1(\\2)\n@findex \\1\n")
"@end table\n")
("methoddescni" 2 "\n@table @code\n@item \\1(\\2)\n" "@end table\n")
("notice" 0 "@emph{Notice:} " "")
("opcodedesc" 2
(progn (setq findex t)
"\n@table @code\n@item \\1 \\2\n@findex \\1\n")
"@end table\n")
("productionlist" 0 "\n@table @code\n" "@end table\n")
("quotation" 0 "@quotation" "@end quotation")
("quote" 0 "@quotation" "@end quotation")
("seealso" 0 "See also:\n@table @emph\n" "@end table\n")
("seealso*" 0 "@table @emph\n" "@end table\n")
("sloppypar" 0 "" "")
("small" 0 "" "")
("tableii" 4 (concat "@multitable @columnfractions .5 .5\n"
"@item \\3 @tab \\4\n"
"@item ------- @tab ------ \n")
"@end multitable\n")
("tableiii" 5 (concat "@multitable @columnfractions .33 .33 .33\n"
"@item \\3 @tab \\4 @tab \\5\n"
"@item ------- @tab ------ @tab ------\n")
"@end multitable\n")
("tableiv" 6 (concat
"@multitable @columnfractions .25 .25 .25 .25\n"
"@item \\3 @tab \\4 @tab \\5 @tab \\6\n"
"@item ------- @tab ------- @tab ------- @tab -------\n")
"@end multitable\n")
("tablev" 7 (concat
"@multitable @columnfractions .20 .20 .20 .20 .20\n"
"@item \\3 @tab \\4 @tab \\5 @tab \\6 @tab \\7\n"
"@item ------- @tab ------- @tab ------- @tab ------- @tab -------\n")
"@end multitable\n")
("alltt" 0 "@example" "@end example")
)
"Associative list defining substitutions for environments.
Each list item is of the form (ENVIRONMENT ARGNUM BEGIN END) where:
- ENVIRONMENT is LaTeX environment name
- ARGNUM is number of (required) macro arguments
- BEGIN is substitution for \begin{ENVIRONMENT}
- END is substitution for \end{ENVIRONMENT}
Both BEGIN and END are evaled. Moreover, you can reference arguments through
\N regular expression notation in strings of BEGIN.")
(defconst py2texi-commands
'(("AA" 0 "@AA{}")
("aa" 0 "@aa{}")
("ABC" 0 "ABC")
("appendix" 0 (progn (setq appendix t) ""))
("ASCII" 0 "ASCII")
("author" 1 (progn (setq author (match-string 1 string)) ""))
("authoraddress" 1
(progn (setq author-address (match-string 1 string)) ""))
("b" 1 "@w{\\1}")
("backslash" 0 "@backslash{}")
("bf" 0 "@destroy")
("bifuncindex" 1 (progn (setq findex t) "@findex{\\1}"))
("C" 0 "C")
("c" 0 "@,")
("catcode" 0 "")
("cdata" 1 "@code{\\1}")
("centerline" 1 "@center \\1")
("cfuncline" 3 "@itemx \\1 \\2(\\3)\n@findex \\2")
("cfunction" 1 "@code{\\1}")
("chapter" 1 (format "@node \\1\n@%s \\1\n"
(if appendix "appendix" "chapter")))
("chapter*" 1 "@node \\1\n@unnumbered \\1\n")
("character" 1 "@samp{\\1}")
("citetitle" 1 "@ref{Top,,,\\1}")
("class" 1 "@code{\\1}")
("cmemberline" 3 "@itemx \\2 \\3\n")
("code" 1 "@code{\\1}")
("command" 1 "@command{\\1}")
("constant" 1 "@code{\\1}")
("copyright" 1 "@copyright{}")
("Cpp" 0 "C++")
("csimplemacro" 1 "@code{\\1}")
("ctype" 1 "@code{\\1}")
("dataline" 1 (progn (setq findex t) "@item \\1\n@findex \\1\n"))
("date" 1 "\\1")
("declaremodule" 2 (progn (setq cindex t) "@label{\\2}@cindex{\\2}"))
("deprecated" 2 "@emph{This is deprecated in Python \\1. \\2}\n\n")
("dfn" 1 "@dfn{\\1}")
("documentclass" 1 py2texi-magic)
("e" 0 "@backslash{}")
("else" 0 (concat "@end ifinfo\n@" (setq last-if "iftex")))
("env" 1 "@code{\\1}")
("EOF" 0 "@code{EOF}")
("email" 1 "@email{\\1}")
("em" 1 "@emph{\\1}")
("emph" 1 "@emph{\\1}")
("envvar" 1 "@env{\\1}")
("exception" 1 "@code{\\1}")
("exindex" 1 (progn (setq obindex t) "@obindex{\\1}"))
("fi" 0 (if (equal last-if "ifx") "" (concat "@end " last-if)))
("file" 1 "@file{\\1}")
("filenq" 1 "@file{\\1}")
("filevar" 1 "@file{@var{\\1}}")
("footnote" 1 "@footnote{\\1}")
("frac" 0 "")
("funcline" 2 (progn (setq findex t) "@item \\1 \\2\n@findex \\1"))
("funclineni" 2 "@item \\1 \\2")
("function" 1 "@code{\\1}")
("grammartoken" 1 "@code{\\1}")
("guilabel" 1 "@strong{\\1}")
("hline" 0 "")
("ifx" 0 (progn (setq last-if "ifx") ""))
("ifhtml" 0 (concat "@" (setq last-if "ifinfo")))
("iftexi" 0 (concat "@" (setq last-if "ifinfo")))
("index" 1 (progn (setq cindex t) "@cindex{\\1}"))
("indexii" 2 (progn (setq cindex t) "@cindex{\\1 \\2}"))
("indexiii" 3 (progn (setq cindex t) "@cindex{\\1 \\2 \\3}"))
("indexiv" 3 (progn (setq cindex t) "@cindex{\\1 \\2 \\3 \\4}"))
("infinity" 0 "@emph{infinity}")
("it" 0 "@destroy")
("kbd" 1 "@key{\\1}")
("keyword" 1 "@code{\\1}")
("kwindex" 1 (progn (setq cindex t) "@cindex{\\1}"))
("label" 1 "@label{\\1}")
("Large" 0 "")
("LaTeX" 0 "La@TeX{}")
("large" 0 "")
("ldots" 0 "@dots{}")
("leftline" 1 "\\1")
("leq" 0 "<=")
("lineii" 2 "@item \\1 @tab \\2")
("lineiii" 3 "@item \\1 @tab \\2 @tab \\3")
("lineiv" 4 "@item \\1 @tab \\2 @tab \\3 @tab \\4")
("linev" 5 "@item \\1 @tab \\2 @tab \\3 @tab \\4 @tab \\5")
("locallinewidth" 0 "")
("localmoduletable" 0 "")
("longprogramopt" 1 "@option{--\\1}")
("macro" 1 "@code{@backslash{}\\1}")
("mailheader" 1 "@code{\\1}")
("makeindex" 0 "")
("makemodindex" 0 "")
("maketitle" 0 (concat "@top " title "\n"))
("makevar" 1 "@code{\\1}")
("manpage" 2 "@samp{\\1(\\2)}")
("mbox" 1 "@w{\\1}")
("member" 1 "@code{\\1}")
("memberline" 1 "@item \\1\n@findex \\1\n")
("menuselection" 1 "@samp{\\1}")
("method" 1 "@code{\\1}")
("methodline" 2 (progn (setq moindex t) "@item \\1(\\2)\n@moindex \\1\n"))
("methodlineni" 2 "@item \\1(\\2)\n")
("mimetype" 1 "@samp{\\1}")
("module" 1 "@samp{\\1}")
("moduleauthor" 2 "")
("modulesynopsis" 1 "\\1")
("moreargs" 0 "@dots{}")
("n" 0 "@backslash{}n")
("newcommand" 2 "")
("newlength" 1 "")
("newsgroup" 1 "@samp{\\1}")
("nodename" 1
(save-excursion
(save-match-data
(re-search-backward "^@node "))
(delete-region (point) (save-excursion (end-of-line) (point)))
(insert "@node " (match-string 1 string))
""))
("noindent" 0 "@noindent ")
("note" 1 "@emph{Note:} \\1")
("NULL" 0 "@code{NULL}")
("obindex" 1 (progn (setq obindex t) "@obindex{\\1}"))
("opindex" 1 (progn (setq cindex t) "@cindex{\\1}"))
("option" 1 "@option{\\1}")
("optional" 1 "[\\1]")
("paragraph" 1 "@subsubheading \\1")
("pep" 1 (progn (setq cindex t) "PEP@ \\1@cindex PEP \\1\n"))
("pi" 0 "pi")
("platform" 1 "")
("plusminus" 0 "+-")
("POSIX" 0 "POSIX")
("production" 2 "@item \\1 \\2")
("productioncont" 1 "@item @w{} \\1")
("program" 1 "@command{\\1}")
("programopt" 1 "@option{\\1}")
("protect" 0 "")
("pytype" 1 "@code{\\1}")
("ref" 1 "@ref{\\1}")
("refbimodindex" 1 (progn (setq moindex t) "@moindex{\\1}"))
("refmodindex" 1 (progn (setq moindex t) "@moindex{\\1}"))
("refmodule" 1 "@samp{\\1}")
("refstmodindex" 1 (progn (setq moindex t) "@moindex{\\1}"))
("regexp" 1 "\"\\1\"")
("release" 1
(progn (setq py2texi-python-version (match-string 1 string)) ""))
("renewcommand" 2 "")
("rfc" 1 (progn (setq cindex t) "RFC@ \\1@cindex RFC \\1\n"))
("rm" 0 "@destroy")
("samp" 1 "@samp{\\1}")
("section" 1 (let ((str (match-string 1 string)))
(save-match-data
(if (string-match "\\(.*\\)[ \t\n]*---[ \t\n]*\\(.*\\)"
str)
(format
"@node %s\n@section %s\n"
(py2texi-backslash-quote (match-string 1 str))
(py2texi-backslash-quote (match-string 2 str)))
"@node \\1\n@section \\1\n"))))
("sectionauthor" 2 "")
("seelink" 3 "\n@table @url\n@item @strong{\\1}\n(\\2)\n\\3\n@end table\n")
("seemodule" 2 "@ref{\\1} \\2")
("seepep" 3 "\n@table @strong\n@item PEP\\1 \\2\n\\3\n@end table\n")
("seerfc" 3 "\n@table @strong\n@item RFC\\1 \\2\n\\3\n@end table\n")
("seetext" 1 "\\1")
("seetitle" 1 "@cite{\\1}")
("seeurl" 2 "\n@table @url\n@item \\1\n\\2\n@end table\n")
("setindexsubitem" 1 (progn (setq cindex t) "@cindex \\1"))
("setlength" 2 "")
("setreleaseinfo" 1 (progn (setq py2texi-releaseinfo "")))
("setshortversion" 1
(progn (setq py2texi-python-short-version (match-string 1 string)) ""))
("shortversion" 0 py2texi-python-short-version)
("sqrt" 0 "")
("stindex" 1 (progn (setq cindex t) "@cindex{\\1}"))
("stmodindex" 1 (progn (setq moindex t) "@moindex{\\1}"))
("strong" 1 "@strong{\\1}")
("sub" 0 "/")
("subsection" 1 "@node \\1\n@subsection \\1\n")
("subsubsection" 1 "@node \\1\n@subsubsection \\1\n")
("sum" 0 "")
("tableofcontents" 0 "")
("term" 1 "@item \\1")
("TeX" 0 "@TeX{}")
("textasciitilde" 0 "~")
("textasciicircum" 0 "^")
("textbackslash" 0 "@backslash{}")
("textbar" 0 "|")
("textbf" 1 "@strong{\\1}")
("texteuro" 0 "@euro{}")
; Unfortunately, this alternate spelling doesn't actually apply to
; the usage found in Python Tutorial, which actually requires a
; Euro symbol to make sense, so this is commented out as well.
; ("texteuro" 0 "Euro ")
("textgreater" 0 ">")
("textit" 1 "@i{\\1}")
("textless" 0 "<")
("textrm" 1 "\\1")
("texttt" 1 "@code{\\1}")
("textunderscore" 0 "_")
("tilde" 0 "~")
("title" 1 (progn (setq title (match-string 1 string)) "@settitle \\1"))
("today" 0 "@today{}")
("token" 1 "@code{\\1}")
("tt" 0 "@destroy")
("ttindex" 1 (progn (setq cindex t) "@cindex{\\1}"))
("u" 0 "@backslash{}u")
("ulink" 2 "\\1")
("UNIX" 0 "UNIX")
("undefined" 0 "")
("unspecified" 0 "@dots{}")
("url" 1 "@url{\\1}")
("usepackage" 1 "")
("var" 1 "@var{\\1}")
("verbatiminput" 1 "@code{\\1}")
("version" 0 py2texi-python-version)
("versionadded" 1 "@emph{Added in Python version \\1}")
("versionchanged" 1 "@emph{Changed in Python version \\1}")
("vskip" 1 "")
("vspace" 1 "")
("warning" 1 "@emph{\\1}")
("withsubitem" 2 "\\2")
("XXX" 1 "@strong{\\1}"))
"Associative list of command substitutions.
Each list item is of the form (COMMAND ARGNUM SUBSTITUTION) where:
- COMMAND is LaTeX command name
- ARGNUM is number of (required) command arguments
- SUBSTITUTION substitution for the command. It is evaled and you can
reference command arguments through the \\N regexp notation in strings.")
(defvar py2texi-magic "@documentclass\n"
"\"Magic\" string for auxiliary insertion at the beginning of document.")
(defvar py2texi-dirs '("./" "../texinputs/")
"Where to search LaTeX input files.")
(defvar py2texi-buffer "*py2texi*"
"The name of a buffer where Texinfo is generated.")
(defconst py2texi-xemacs (string-match "^XEmacs" (emacs-version))
"Running under XEmacs?")
(defmacro py2texi-search (regexp &rest body)
`(progn
(goto-char (point-min))
(while (re-search-forward ,regexp nil t)
,@body)))
(defmacro py2texi-search-safe (regexp &rest body)
`(py2texi-search ,regexp
(unless (py2texi-protected)
,@body)))
(defun py2texi-message (message)
"Report message and stop if `py2texi-stop-on-problems' is non-nil."
(if py2texi-stop-on-problems
(error message)
(message message)))
(defun py2texi-backslash-quote (string)
"Double backslahes in STRING."
(let ((i 0))
(save-match-data
(while (setq i (string-match "\\\\" string i))
(setq string (replace-match "\\\\\\\\" t nil string))
(setq i (+ i 2))))
string))
(defun py2texi (file)
"Convert Python LaTeX documentation FILE to Texinfo."
(interactive "fFile to convert: ")
(switch-to-buffer (get-buffer-create py2texi-buffer))
(erase-buffer)
(insert-file file)
(let ((case-fold-search nil)
(title "")
(author "")
(author-address "")
(appendix nil)
(findex nil)
(obindex nil)
(cindex nil)
(moindex nil)
last-if)
(py2texi-process-verbatims)
(py2texi-process-comments)
(py2texi-process-includes)
(py2texi-process-funnyas)
(py2texi-process-environments)
(py2texi-process-commands)
(py2texi-fix-indentation)
(py2texi-fix-nodes)
(py2texi-fix-references)
(py2texi-fix-indices)
(py2texi-process-simple-commands)
(py2texi-fix-fonts)
(py2texi-fix-braces)
(py2texi-fix-backslashes)
(py2texi-destroy-empties)
(py2texi-fix-newlines)
(py2texi-adjust-level))
(let* ((texi-file-name (or py2texi-texi-file-name
(py2texi-texi-file-name file)))
(info-file-name (or py2texi-info-file-name
(py2texi-info-file-name texi-file-name))))
(goto-char (point-min))
(when (looking-at py2texi-magic)
(delete-region (point) (progn (beginning-of-line 2) (point)))
(insert "\\input texinfo @c -*-texinfo-*-\n")
(insert "@setfilename " info-file-name))
(when (re-search-forward "@chapter" nil t)
(texinfo-all-menus-update t))
(goto-char (point-min))
(write-file texi-file-name)
(message (format "You can apply `makeinfo %s' now." texi-file-name))))
(defun py2texi-texi-file-name (filename)
"Generate name of Texinfo file from original file name FILENAME."
(concat filename
(if (string-match "\\.tex$" filename) "i" ".texi")))
(defun py2texi-info-file-name (filename)
"Generate name of info file from original file name FILENAME."
(setq filename (expand-file-name filename))
(let ((directory (file-name-directory filename))
(basename (file-name-nondirectory filename)))
(concat directory "python-"
(substring basename 0 (- (length basename) 4)) "info")))
(defun py2texi-process-verbatims ()
"Process and protect verbatim environments."
(let (delimiter
beg
end)
(py2texi-search-safe "\\\\begin{\\(verbatim\\|displaymath\\)}"
(when (save-excursion
; Make sure we aren't looking at a commented out version
; of a verbatim environment
(beginning-of-line)
(not (looking-at "%")))
(replace-match "@example ")
(setq beg (copy-marker (point) nil))
(re-search-forward "\\\\end{\\(verbatim\\|displaymath\\)}")
(setq end (copy-marker (match-beginning 0) nil))
(replace-match "@end example")
(py2texi-texinfo-escape beg end)
(put-text-property (- beg (length "@example "))
(+ end (length "@end example"))
'py2texi-protected t)))
(py2texi-search-safe "\\\\verb\\([^a-z]\\)"
(setq delimiter (match-string 1))
(replace-match "@code{")
(setq beg (copy-marker (point) nil))
(re-search-forward (regexp-quote delimiter))
(setq end (copy-marker (match-beginning 0) nil))
(replace-match "}")
(put-text-property (- beg (length "@code{")) (+ end (length "}"))
'py2texi-protected t)
(py2texi-texinfo-escape beg end))))
(defun py2texi-process-comments ()
"Remove comments."
(let (point)
(py2texi-search-safe "%"
(setq point (point))
(when (save-excursion
(re-search-backward "\\(^\\|[^\\]\\(\\\\\\\\\\)*\\)%\\=" nil t))
(delete-region (1- point)
(save-excursion (beginning-of-line 2) (point)))))))
(defun py2texi-process-includes ()
"Include LaTeX input files.
Do not include .ind files."
(let ((path (file-name-directory file))
filename
dirs
includefile)
(py2texi-search-safe "\\\\input{\\([^}]+\\)}"
(setq filename (match-string 1))
(unless (save-match-data (string-match "\\.tex$" filename))
(setq filename (concat filename ".tex")))
(setq includefile (save-match-data
(string-match "\\.ind\\.tex$" filename)))
(setq dirs py2texi-dirs)
(while (and (not includefile) dirs)
(setq includefile
(concat (file-name-as-directory (car dirs)) filename))
(if (not (file-name-absolute-p includefile))
(setq includefile
(concat (file-name-as-directory path) includefile)))
(unless (file-exists-p includefile)
(setq includefile nil)
(setq dirs (cdr dirs))))
(if includefile
(save-restriction
(narrow-to-region (match-beginning 0) (match-end 0))
(delete-region (point-min) (point-max))
(when (stringp includefile)
(insert-file-contents includefile)
(goto-char (point-min))
(insert "\n")
(py2texi-process-verbatims)
(py2texi-process-comments)
(py2texi-process-includes)))
(replace-match (format "\\\\emph{Included file %s}" filename))
(py2texi-message (format "Input file %s not found" filename))))))
(defun py2texi-process-funnyas ()
"Convert @s."
(py2texi-search-safe "@"
(replace-match "@@")))
(defun py2texi-process-environments ()
"Process LaTeX environments."
(let ((stack ())
kind
environment
parameter
arguments
n
string
description)
(py2texi-search-safe (concat "\\\\\\(begin\\|end\\|item\\)"
"\\({\\([^}]*\\)}\\|[[]\\([^]]*\\)[]]\\|\\)")
(setq kind (match-string 1)
environment (match-string 3)
parameter (match-string 4))
(replace-match "")
(cond
((string= kind "begin")
(setq description (assoc environment py2texi-environments))
(if description
(progn
(setq n (cadr description))
(setq description (cddr description))
(setq string (py2texi-tex-arguments n))
(string-match (py2texi-regexp n) string)
; incorrect but sufficient
(insert (replace-match (eval (car description))
t nil string))
(setq stack (cons (cadr description) stack)))
(py2texi-message (format "Unknown environment: %s" environment))
(setq stack (cons "" stack))))
((string= kind "end")
(insert (eval (car stack)))
(setq stack (cdr stack)))
((string= kind "item")
(insert "\n@item " (or parameter "") "\n"))))
(when stack
(py2texi-message (format "Unclosed environment: %s" (car stack))))))
(defun py2texi-process-commands ()
"Process LaTeX commands."
(let (done
command
command-info
string
n)
(while (not done)
(setq done t)
(py2texi-search-safe "\\\\\\([a-zA-Z*]+\\)\\(\\[[^]]*\\]\\)?"
(setq command (match-string 1))
(setq command-info (assoc command py2texi-commands))
(if command-info
(progn
(setq done nil)
(replace-match "")
(setq command-info (cdr command-info))
(setq n (car command-info))
(setq string (py2texi-tex-arguments n))
(string-match (py2texi-regexp n) string)
; incorrect but sufficient
(insert (replace-match (eval (cadr command-info))
t nil string)))
(py2texi-message (format "Unknown command: %s (not processed)"
command)))))))
(defun py2texi-argument-pattern (count)
(let ((filler "\\(?:[^{}]\\|\\\\{\\|\\\\}\\)*"))
(if (<= count 0)
filler
(concat filler "\\(?:{"
(py2texi-argument-pattern (1- count))
"}" filler "\\)*" filler))))
(defconst py2texi-tex-argument
(concat
"{\\("
(py2texi-argument-pattern 10) ;really at least 10!
"\\)}[ \t%@c\n]*")
"Regexp describing LaTeX command argument including argument separators.")
(defun py2texi-regexp (n)
"Make regexp matching N LaTeX command arguments."
(if (= n 0)
""
(let ((regexp "^[^{]*"))
(while (> n 0)
(setq regexp (concat regexp py2texi-tex-argument))
(setq n (1- n)))
regexp)))
(defun py2texi-tex-arguments (n)
"Remove N LaTeX command arguments and return them as a string."
(let ((point (point))
(i 0)
result
match)
(if (= n 0)
(progn
(when (re-search-forward "\\=\\({}\\| *\\)" nil t)
(replace-match ""))
"")
(while (> n 0)
(unless (re-search-forward
"\\(\\=\\|[^\\\\]\\)\\(\\\\\\\\\\)*\\([{}]\\)" nil t)
(debug))
(if (string= (match-string 3) "{")
(setq i (1+ i))
(setq i (1- i))
(when (<= i 0)
(setq n (1- n)))))
(setq result (buffer-substring-no-properties point (point)))
(while (string-match "\n[ \t]*" result)
(setq result (replace-match " " t nil result)))
(delete-region point (point))
result)))
(defun py2texi-process-simple-commands ()
"Replace single character LaTeX commands."
(let (char)
(py2texi-search-safe "\\\\\\([^a-z]\\)"
(setq char (match-string 1))
(replace-match (format "%s%s"
(if (or (string= char "{")
(string= char "}")
(string= char " "))
"@"
"")
(if (string= char "\\")
"\\\\"
char))))))
(defun py2texi-fix-indentation ()
"Remove white space at the beginning of lines."
(py2texi-search-safe "^[ \t]+"
(replace-match "")))
(defun py2texi-fix-nodes ()
"Remove unwanted characters from nodes and make nodes unique."
(let ((nodes (make-hash-table :test 'equal))
id
counter
string
label
index)
(py2texi-search "^@node +\\(.*\\)$"
(setq string (match-string 1))
(if py2texi-xemacs
(replace-match "@node " t)
(replace-match "" t nil nil 1))
(while (string-match "@label{[^}]*}" string)
(setq label (match-string 0 string))
(setq string (replace-match "" t nil string)))
(while (string-match "@..?index{[^}]*}" string)
(setq index (match-string 0 string))
(setq string (replace-match "" t nil string)))
(while (string-match "@[a-zA-Z]+\\|[{}():]\\|``\\|''" string)
(setq string (replace-match "" t nil string)))
(while (string-match " -- " string)
(setq string (replace-match " - " t nil string)))
(while (string-match "\\." string)
(setq string (replace-match "" t nil string)))
(when (string-match " +$" string)
(setq string (replace-match "" t nil string)))
(when (string-match "^\\(Built-in\\|Standard\\) Module \\|The " string)
(setq string (replace-match "" t nil string)))
(string-match "^[^,]+" string)
(setq id (match-string 0 string))
(setq counter (gethash id nodes))
(if counter
(progn
(setq counter (1+ counter))
(setq string (replace-match (format "\\& %d" counter)
t nil string)))
(setq counter 1))
(setf (gethash id nodes) counter)
(insert string)
(beginning-of-line 3)
(when label
(insert label "\n"))
(when index
(insert index "\n")))))
(defun py2texi-fix-references ()
"Process labels and make references to point to appropriate nodes."
(let ((labels ())
node)
(py2texi-search-safe "@label{\\([^}]*\\)}"
(setq node (save-excursion
(save-match-data
(and (re-search-backward "@node +\\([^,\n]+\\)" nil t)
(match-string 1)))))
(when node
(setq labels (cons (cons (match-string 1) node) labels)))
(replace-match ""))
(py2texi-search-safe "@ref{\\([^}]*\\)}"
(setq node (assoc (match-string 1) labels))
(replace-match "")
(when node
(insert (format "@ref{%s}" (cdr node)))))))
(defun py2texi-fix-indices ()
"Remove unwanted characters from @*index commands and create final indices."
(py2texi-search-safe "@..?index\\>[^\n]*\\(\\)\n"
(replace-match "" t nil nil 1))
(py2texi-search-safe "@..?index\\>[^\n]*\\(\\)"
(replace-match "\n" t nil nil 1))
(py2texi-search-safe "@..?index\\({\\)\\([^}]+\\)\\(}+\\)"
(replace-match " " t nil nil 1)
(replace-match "" t nil nil 3)
(let ((string (match-string 2)))
(save-match-data
(while (string-match "@[a-z]+{" string)
(setq string (replace-match "" nil nil string)))
(while (string-match "{" string)
(setq string (replace-match "" nil nil string))))
(replace-match string t t nil 2)))
(py2texi-search-safe "@..?index\\>.*\\([{}]\\|@[a-z]*\\)"
(replace-match "" t nil nil 1)
(goto-char (match-beginning 0)))
(py2texi-search-safe "[^\n]\\(\\)@..?index\\>"
(replace-match "\n" t nil nil 1))
(goto-char (point-max))
(re-search-backward "@indices")
(replace-match "")
(insert (if moindex
(concat "@node Module Index\n"
"@unnumbered Module Index\n"
"@printindex mo\n")
"")
(if obindex
(concat "@node Class-Exception-Object Index\n"
"@unnumbered Class, Exception, and Object Index\n"
"@printindex ob\n")
"")
(if findex
(concat "@node Function-Method-Variable Index\n"
"@unnumbered Function, Method, and Variable Index\n"
"@printindex fn\n")
"")
(if cindex
(concat "@node Miscellaneous Index\n"
"@unnumbered Miscellaneous Index\n"
"@printindex cp\n")
"")))
(defun py2texi-fix-backslashes ()
"Make backslashes from auxiliary commands."
(py2texi-search-safe "@backslash{}"
(replace-match "\\\\")))
(defun py2texi-fix-fonts ()
"Remove garbage after unstructured font commands."
(let (string)
(py2texi-search-safe "@destroy"
(replace-match "")
(when (eq (preceding-char) ?{)
(forward-char -1)
(setq string (py2texi-tex-arguments 1))
(insert (substring string 1 (1- (length string))))))))
(defun py2texi-fix-braces ()
"Escape braces for Texinfo."
(py2texi-search "{@{}"
(replace-match "@{"))
(py2texi-search "{@}}"
(replace-match "@}"))
(let (string)
(py2texi-search "{"
(unless (or (py2texi-protected)
(save-excursion
(re-search-backward
"@\\([a-zA-Z]*\\|multitable.*\\){\\=" nil t)))
(forward-char -1)
(setq string (py2texi-tex-arguments 1))
(insert "@" (substring string 0 (1- (length string))) "@}")))))
(defun py2texi-fix-newlines ()
"Remove extra newlines."
(py2texi-search "\n\n\n+"
(replace-match "\n\n"))
(py2texi-search-safe "@item.*\n\n"
(delete-backward-char 1))
(py2texi-search "@end example"
(unless (looking-at "\n\n")
(insert "\n"))))
(defun py2texi-destroy-empties ()
"Remove all comments.
This avoids some makeinfo errors."
(py2texi-search "@c\\>"
(unless (eq (py2texi-protected) t)
(delete-region (- (point) 2) (save-excursion (end-of-line) (point)))
(cond
((looking-at "\n\n")
(delete-char 1))
((save-excursion (re-search-backward "^[ \t]*\\=" nil t))
(delete-region (save-excursion (beginning-of-line) (point))
(1+ (point))))))))
(defun py2texi-adjust-level ()
"Increase heading level to @chapter, if needed.
This is only needed for distutils, so it has a very simple form only."
(goto-char (point-min))
(unless (re-search-forward "@chapter\\>" nil t)
(py2texi-search-safe "@section\\>"
(replace-match "@chapter" t))
(py2texi-search-safe "@\\(sub\\)\\(sub\\)?section\\>"
(replace-match "" nil nil nil 1))))
(defun py2texi-texinfo-escape (beg end)
"Escape Texinfo special characters in region."
(save-excursion
(goto-char beg)
(while (re-search-forward "[@{}]" end t)
(replace-match "@\\&"))))
(defun py2texi-protected ()
"Return protection status of the point before current point."
(get-text-property (1- (point)) 'py2texi-protected))
;;; Announce
(provide 'py2texi)
;;; py2texi.el ends here