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