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