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   1 ;;; texi2latex.el --- convert a texi file into a LaTeX file.
   2 ;; Copyright (C) 1996 Lars Magne Ingebrigtsen
   3
   4 (require 'cl)
   5
   6 (defun latexi-discard-until (string)
   7   (let ((beg (match-beginning 0)))
   8     (unless (re-search-forward (concat "^@end +" string "[ \t]*\n") nil t)
   9       (error "No end: %s" string))
  10     (delete-region beg (match-end 0))))
  11
  12 (defun latexi-strip-line ()
  13   (delete-region (progn (beginning-of-line) (point))
  14                  (progn (forward-line 1) (point))))
  15
  16 (defun latexi-switch-line (command arg)
  17   (latexi-strip-line)
  18   (insert (format "\\%s{%s}\n" command arg)))
  19
  20 (defun latexi-index-command (command arg)
  21   (latexi-strip-line)
  22   (insert (format "\\gnus%sindex{%s}\n"
  23                   (if (equal command "kindex") "k" "")
  24                   arg)))
  25
  26 (defun latexi-begin-command (command)
  27   (latexi-strip-line)
  28   (insert (format "\\begin{%s}\n" command)))
  29
  30 (defun latexi-exchange-command (command arg)
  31   (delete-region (match-beginning 0) (match-end 0))
  32   (insert (format "\\%s{%s}" command arg)))
  33
  34 (defun latexi-translate ()
  35   "Translate."
  36   (interactive)
  37   (latexi-translate-file "gnus")
  38   (latexi-translate-file "gnus-faq")
  39   (latexi-translate-file "message" t)
  40   (latexi-translate-file "emacs-mime" t)
  41   (latexi-translate-file "sieve" t)
  42   (latexi-translate-file "pgg" t))
  43
  44 (defun latexi-translate-file (file &optional as-a-chapter)
  45   "Translate file a LaTeX file."
  46   (let ((item-string "")
  47         (item-stack nil)
  48         (list-stack nil)
  49         (latexi-buffer (get-buffer-create "*LaTeXi*"))
  50         verbatim
  51         (regexp
  52          (concat
  53             "@\\([^{} \t\n]+\\)"
  54             "\\(\\( +\\(.*$\\)\\|[ \t]*$\\)\\|{\\([^}]*\\)}\\)"))
  55         (cur (find-file-noselect (concat (or (getenv "srcdir") ".")
  56                                          "/" file ".texi")))
  57         (times 3)
  58         (chapter 0)
  59         command arg)
  60     (pop-to-buffer latexi-buffer)
  61     (buffer-disable-undo)
  62     (erase-buffer)
  63     (insert-buffer-substring cur)
  64     (goto-char (point-min))
  65     (latexi-strip-line)
  66     (latexi-translate-string "%@{" "\\gnuspercent{}\\gnusbraceleft{}")
  67     (latexi-translate-string "%@}" "\\gnuspercent{}\\gnusbraceright{}")
  68     (latexi-translate-string "%1@{" "\\gnuspercent{}1\\gnusbraceright{}")
  69     (latexi-translate-string "@*" "\\newline{}")
  70     (latexi-translate-string "S@{" "S\\gnusbraceleft{}")
  71     (latexi-translate-string "@code{\\222}" "@code{\\gnusbackslash{}222}")
  72     (latexi-translate-string "@code{\\264}" "@code{\\gnusbackslash{}264}")
  73     (latexi-translate-string "@samp{\\Deleted}" "@samp{\\gnusbackslash{}Deleted}")
  74     (latexi-translate-string "@samp{\\Seen}" "@samp{\\gnusbackslash{}Seen}")
  75 ;    (while (re-search-forward "{\"[^\"]*\\(\\\\\\)[^\"]*\"}\\\\" nil t)
  76 ;      (replace-match "\\verb+\\\\+ " t t))
  77     (while (not (zerop (decf times)))
  78       (goto-char (point-min))
  79       (while (re-search-forward regexp nil t)
  80         (setq command (match-string 1))
  81         (if (match-beginning 3)
  82             (progn
  83               (setq arg (or (match-string 4) ""))
  84               (save-match-data
  85                 (when (string-match "[ \t]+$" arg)
  86                   (setq arg (substring arg 0 (match-beginning 0)))))
  87               (cond
  88                ((member command '("c" "comment"))
  89                 (if (string-match "@icon" (or arg ""))
  90                     (progn
  91                       (beginning-of-line)
  92                       (delete-region (point) (+ (point) 4))
  93                       (insert "\\gnus"))
  94                   (delete-region (match-beginning 0)
  95                                  (progn (end-of-line) (point))))
  96                 (if (equal arg "@head")
  97                     (insert "\\gnusinteresting")))
  98                ((member command '("setfilename" "set"
  99                                   "synindex" "setchapternewpage"
 100                                   "summarycontents" "bye"
 101                                   "top" "iftex" "cartouche"
 102                                   "iflatex" "finalout" "vskip"
 103                                   "dircategory"))
 104                 (latexi-strip-line))
 105                ((member command '("menu" "tex" "ifinfo" "ignore"
 106                                   "ifnottex" "direntry"))
 107                 (latexi-discard-until command))
 108                ((member command '("subsection" "subsubsection"))
 109                 (if as-a-chapter
 110                     (latexi-switch-line (format "sub%s" command) arg)
 111                   (latexi-switch-line command arg)))
 112                ((member command '("chapter"))
 113                 (if (string-match "Index" arg)
 114                     (latexi-strip-line)
 115                   (if as-a-chapter
 116                       (latexi-switch-line "gnussection" arg)
 117                     (latexi-switch-line
 118                      (format
 119                       "gnus%s{%s}" command
 120                       (format "\\epsfig{figure=ps/new-herd-%d,scale=.5}"
 121                               (if (> (incf chapter) 9) 9 chapter)))
 122                      arg))))
 123                ((member command '("section"))
 124                 (if as-a-chapter
 125                     (latexi-switch-line "subsection" arg)
 126                   (latexi-switch-line (format "gnus%s" command) arg)))
 127                ((member command '("cindex" "findex" "kindex" "vindex"))
 128                 (latexi-index-command command arg))
 129                ((member command '("*"))
 130                 (delete-char -2)
 131                 (insert "\\\\"))
 132                ((equal command "sp")
 133                 (replace-match "" t t))
 134                ((member command '("deffn" "defvar" "defun"))
 135                 (replace-match "" t t))
 136                ((equal command "node")
 137                 (latexi-strip-line)
 138                 (unless (string-match "Index" arg)
 139                   (insert (format "\\label{%s}\n" arg))))
 140                ((equal command "contents")
 141                 (latexi-strip-line)
 142                 ;;(insert (format "\\tableofcontents\n" arg))
 143                 )
 144                ((member command '("titlepage"))
 145                 (latexi-begin-command command))
 146                ((member command '("lisp" "example"))
 147                 (latexi-strip-line)
 148                 (insert (format "\\begin{verbatim}\n"))
 149                 (setq verbatim (point)))
 150                ((member command '("center"))
 151                 (latexi-strip-line)
 152                 (insert (format "\\begin{%s}%s\\end{%s}\n"
 153                                 command arg command)))
 154                ((member command '("end"))
 155                 (cond
 156                  ((member arg '("titlepage"))
 157                   (latexi-strip-line)
 158                   (insert (format "\\end{%s}\n" arg)))
 159                  ((equal arg "quotation")
 160                   (latexi-strip-line)
 161                   (insert (format "\\end{verse}\n")))
 162                  ((member arg '("lisp" "example"))
 163                   (latexi-strip-line)
 164                   (save-excursion
 165                     (save-restriction
 166                       (narrow-to-region verbatim (point))
 167                       (goto-char (point-min))
 168                       (while (search-forward "@{" nil t)
 169                         (replace-match "{" t t))
 170                       (goto-char (point-min))
 171                       (while (search-forward "@}" nil t)
 172                         (replace-match "}" t t))))
 173                   (setq verbatim nil)
 174                   (insert "\\end{verbatim}\n"))
 175                  ((member arg '("table"))
 176                   (setq item-string (pop item-stack))
 177                   (latexi-strip-line)
 178                   (insert (format "\\end{%slist}\n" (pop list-stack))))
 179                  ((member arg '("itemize" "enumerate"))
 180                   (setq item-string (pop item-stack))
 181                   (latexi-strip-line)
 182                   (insert (format "\\end{%s}\n" arg)))
 183                  ((member arg '("iflatex" "iftex" "cartouche"))
 184                   (latexi-strip-line))
 185                  ((member arg '("deffn" "defvar" "defun"))
 186                   (latexi-strip-line))
 187                  (t
 188                   (error "Unknown end arg: %s" arg))))
 189                ((member command '("table"))
 190                 (push item-string item-stack)
 191                 (push (substring arg 1) list-stack)
 192                 (setq item-string
 193                       (format "[@%s{%%s}]" (car list-stack)))
 194                 (latexi-strip-line)
 195                 (insert (format "\\begin{%slist}\n" (car list-stack))))
 196                ((member command '("itemize" "enumerate"))
 197                 (push item-string item-stack)
 198                 (cond
 199                  ((member arg '("@bullet"))
 200                   (setq item-string "[\\gnusbullet]"))
 201                  (t
 202                   (setq item-string "")))
 203                 (latexi-strip-line)
 204                 (insert (format "\\begin{%s}\n" command)))
 205                ((member command '("item"))
 206                 (latexi-strip-line)
 207                 (insert (format "\\%s%s\n" command (format item-string arg))))
 208                ((equal command "itemx")
 209                 (latexi-strip-line)
 210                 (insert (format "\\gnusitemx{%s}\n" (format item-string arg))))
 211                ((eq (aref command 0) ?@)
 212                 (goto-char (match-beginning 0))
 213                 (delete-char 2)
 214                 (insert "duppat{}"))
 215                ((equal command "settitle")
 216                 (latexi-strip-line)
 217                 (if (not as-a-chapter)
 218                     (insert
 219                      (format "\\newcommand{\\gnustitlename}{%s}\n" arg))))
 220                ((equal command "title")
 221                 (latexi-strip-line)
 222                 (insert (format "\\gnustitlename{%s}\n" arg)))
 223                ((equal command "author")
 224                 (latexi-strip-line)
 225                 (insert (format "\\gnusauthor{%s}\n" arg)))
 226                ((equal command "quotation")
 227                 (latexi-begin-command "verse"))
 228                ((equal command "page")
 229                 (latexi-strip-line)
 230                 (insert (format "\\newpage\n" arg)))
 231                ((equal command "'s")
 232                 (goto-char (match-beginning 0))
 233                 (delete-char 1))
 234                ((equal command "include")
 235                 (latexi-strip-line)
 236                 (string-match "\\.texi" arg)
 237                 (insert (format "\\input{%s.latexi}\n"
 238                                 (substring arg 0 (match-beginning 0)))))
 239                ((equal command "noindent")
 240                 (latexi-strip-line)
 241                 (insert "\\noindent\n"))
 242                ((equal command "printindex")
 243                 (latexi-strip-line)
 244                 ;;(insert
 245                 ;; (format
 246                 ;;  "\\begin{theindex}\\input{gnus.%s}\\end{theindex}\n" arg))
 247                 )
 248                (t
 249                 (error "Unknown command (file %s line %d): %s"
 250                        file
 251                        (save-excursion
 252                          (widen)
 253                          (1+ (count-lines (point-min) (progn
 254                                                         (beginning-of-line)
 255                                                         (point)))))
 256                        command))))
 257           ;; These are commands with {}.
 258           (setq arg (match-string 5))
 259           (cond
 260            ((member command '("anchor"))
 261             (latexi-strip-line))
 262            ((member command '("ref" "xref" "pxref"))
 263             (latexi-exchange-command (concat "gnus" command) arg))
 264            ((member command '("sc" "file" "dfn" "emph" "kbd" "key" "uref"
 265                               "code" "samp" "var" "strong" "i"
 266                               "result"))
 267             (goto-char (match-beginning 0))
 268             (delete-char 1)
 269             (insert "\\gnus"))
 270            ((member command '("copyright" "footnote"))
 271             (goto-char (match-beginning 0))
 272             (delete-char 1)
 273             (insert "\\"))
 274            ((member command '("dots"))
 275             (goto-char (match-beginning 0))
 276             (delete-region (match-beginning 0) (match-end 0))
 277             (insert "..."))
 278            ((eq (aref command 0) ?@)
 279             (goto-char (match-beginning 0))
 280             (delete-char 2)
 281             (insert "duppat{}"))
 282            (t
 283             (error "Unknown command (file %s line %d): %s"
 284                    file
 285                    (save-excursion
 286                      (widen)
 287                      (1+ (count-lines (point-min) (progn
 288                                                     (beginning-of-line)
 289                                                     (point)))))
 290                    command))))))
 291     (latexi-translate-string "$" "\\gnusdollar{}")
 292     (latexi-translate-string "&" "\\gnusampersand{}")
 293     (latexi-translate-string "%" "\\gnuspercent{}")
 294     (latexi-translate-string "#" "\\gnushash{}")
 295     (latexi-translate-string "^" "\\gnushat{}")
 296     (latexi-translate-string "~" "\\gnustilde{}")
 297     (latexi-translate-string "_" "\\gnusunderline{}")
 298     (latexi-translate-string "¬" "\\gnusnot{}")
 299     (goto-char (point-min))
 300     (while (search-forward "duppat{}" nil t)
 301       (replace-match "@" t t))
 302     (latexi-translate-string "@@" "@")
 303     (latexi-translate-string "<" "\\gnusless{}")
 304     (latexi-translate-string ">" "\\gnusgreater{}")
 305     (goto-char (point-min))
 306     (search-forward "label{Top}" nil t)
 307     (while (re-search-forward "\\\\[ntr]\\b" nil t)
 308       (when (save-match-data
 309               (or (not (save-excursion
 310                          (search-backward "begin{verbatim}" nil t)))
 311                   (> (save-excursion
 312                        (search-backward "end{verbatim"))
 313                      (save-excursion
 314                        (search-backward "begin{verbatim}")))))
 315         (goto-char (match-beginning 0))
 316         (delete-char 1)
 317         (insert "\\gnusbackslash{}")))
 318     (latexi-translate-string "\\\\" "\\gnusbackslash{}")
 319     (goto-char (point-min))
 320     (while (re-search-forward "\\\\[][{}]" nil t)
 321       (goto-char (match-beginning 0))
 322       (delete-char 1))
 323     (latexi-contributors)
 324     (let ((coding-system-for-write 'iso-8859-1))
 325       (write-region (point-min) (point-max) (concat file ".latexi")))))
 326
 327 (defun latexi-translate-string (in out)
 328   (let (yes)
 329     (goto-char (point-min))
 330     (search-forward "label{Top}" nil t)
 331     (while (search-forward in nil t)
 332       (when (save-match-data
 333               (or (not (save-excursion
 334                          (search-backward "begin{verbatim}" nil t)))
 335                   (> (save-excursion
 336                        (re-search-backward "end{verbatim}\\|end{verse}"))
 337                      (save-excursion
 338                        (re-search-backward
 339                         "begin{verbatim}\\|begin{verse}")))))
 340         (replace-match out t t)))))
 341
 342 (defun latexi-contributors ()
 343   (goto-char (point-min))
 344   (when (re-search-forward "^Also thanks to the following" nil t)
 345     (forward-line 2)
 346     (narrow-to-region
 347      (point)
 348      (1- (search-forward "\n\n")))
 349     (when (re-search-backward "^and" nil t)
 350       (latexi-strip-line))
 351     (goto-char (point-min))
 352     (while (re-search-forward "[.,] *$" nil t)
 353       (replace-match "" t t))
 354     (goto-char (point-min))
 355     (let (names)
 356       (while (not (eobp))
 357         (push (buffer-substring (point) (progn (end-of-line) (point)))
 358               names)
 359         (forward-line 1))
 360       (delete-region (point-min) (point-max))
 361       (insert "\\begin{tabular}{lll}\n")
 362       (setq names (nreverse (delete "" names)))
 363       (while names
 364         (insert (pop names) " & " (or (pop names) "\\mbox{}")
 365                 " & " (or (pop names) "\\mbox{}")
 366                 "\\\\\n"))
 367       (insert "\\end{tabular}\n")
 368       (widen))))
 369