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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
  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" "set"
  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                       (format "\\epsfig{figure=ps/new-herd-%d,scale=.5}"
 120                               (if (> (incf chapter) 9) 9 chapter)))
 121                      arg))))
 122                ((member command '("section"))
 123                 (if as-a-chapter
 124                     (latexi-switch-line "subsection" arg)
 125                   (latexi-switch-line (format "gnus%s" command) arg)))
 126                ((member command '("cindex" "findex" "kindex" "vindex"))
 127                 (latexi-index-command command arg))
 128                ((member command '("*"))
 129                 (delete-char -2)
 130                 (insert "\\\\"))
 131                ((equal command "sp")
 132                 (replace-match "" t t))
 133                ((member command '("deffn" "defvar" "defun"))
 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                  ((member arg '("deffn" "defvar" "defun"))
 185                   (latexi-strip-line))
 186                  (t
 187                   (error "Unknown end arg: %s" arg))))
 188                ((member command '("table"))
 189                 (push item-string item-stack)
 190                 (push (substring arg 1) list-stack)
 191                 (setq item-string
 192                       (format "[@%s{%%s}]" (car list-stack)))
 193                 (latexi-strip-line)
 194                 (insert (format "\\begin{%slist}\n" (car list-stack))))
 195                ((member command '("itemize" "enumerate"))
 196                 (push item-string item-stack)
 197                 (cond
 198                  ((member arg '("@bullet"))
 199                   (setq item-string "[\\gnusbullet]"))
 200                  (t
 201                   (setq item-string "")))
 202                 (latexi-strip-line)
 203                 (insert (format "\\begin{%s}\n" command)))
 204                ((member command '("item"))
 205                 (latexi-strip-line)
 206                 (insert (format "\\%s%s\n" command (format item-string arg))))
 207                ((equal command "itemx")
 208                 (latexi-strip-line)
 209                 (insert (format "\\gnusitemx{%s}\n" (format item-string arg))))
 210                ((eq (aref command 0) ?@)
 211                 (goto-char (match-beginning 0))
 212                 (delete-char 2)
 213                 (insert "duppat{}"))
 214                ((equal command "settitle")
 215                 (latexi-strip-line)
 216                 (if (not as-a-chapter)
 217                     (insert
 218                      (format "\\newcommand{\\gnustitlename}{%s}\n" arg))))
 219                ((equal command "title")
 220                 (latexi-strip-line)
 221                 (insert (format "\\gnustitlename{%s}\n" arg)))
 222                ((equal command "author")
 223                 (latexi-strip-line)
 224                 (insert (format "\\gnusauthor{%s}\n" arg)))
 225                ((equal command "quotation")
 226                 (latexi-begin-command "verse"))
 227                ((equal command "page")
 228                 (latexi-strip-line)
 229                 (insert (format "\\newpage\n" arg)))
 230                ((equal command "'s")
 231                 (goto-char (match-beginning 0))
 232                 (delete-char 1))
 233                ((equal command "include")
 234                 (latexi-strip-line)
 235                 (string-match "\\.texi" arg)
 236                 (insert (format "\\input{%s.latexi}\n"
 237                                 (substring arg 0 (match-beginning 0)))))
 238                ((equal command "noindent")
 239                 (latexi-strip-line)
 240                 (insert "\\noindent\n"))
 241                ((equal command "printindex")
 242                 (latexi-strip-line)
 243                 ;;(insert
 244                 ;; (format
 245                 ;;  "\\begin{theindex}\\input{gnus.%s}\\end{theindex}\n" arg))
 246                 )
 247                (t
 248                 (error "Unknown command (file %s line %d): %s"
 249                        file
 250                        (save-excursion
 251                          (widen)
 252                          (1+ (count-lines (point-min) (progn
 253                                                         (beginning-of-line)
 254                                                         (point)))))
 255                        command))))
 256           ;; These are commands with {}.
 257           (setq arg (match-string 5))
 258           (cond
 259            ((member command '("anchor"))
 260             (latexi-strip-line))
 261            ((member command '("ref" "xref" "pxref"))
 262             (latexi-exchange-command (concat "gnus" command) arg))
 263            ((member command '("sc" "file" "dfn" "emph" "kbd" "key" "uref"
 264                               "code" "samp" "var" "strong" "i"
 265                               "result" "acronym" "email"))
 266             (goto-char (match-beginning 0))
 267             (delete-char 1)
 268             (insert "\\gnus"))
 269            ((member command '("copyright" "footnote"))
 270             (goto-char (match-beginning 0))
 271             (delete-char 1)
 272             (insert "\\"))
 273            ((member command '("dots"))
 274             (goto-char (match-beginning 0))
 275             (delete-region (match-beginning 0) (match-end 0))
 276             (insert "..."))
 277            ((eq (aref command 0) ?@)
 278             (goto-char (match-beginning 0))
 279             (delete-char 2)
 280             (insert "duppat{}"))
 281            (t
 282             (error "Unknown command (file %s line %d): %s"
 283                    file
 284                    (save-excursion
 285                      (widen)
 286                      (1+ (count-lines (point-min) (progn
 287                                                     (beginning-of-line)
 288                                                     (point)))))
 289                    command))))))
 290     (latexi-translate-string "$" "\\gnusdollar{}")
 291     (latexi-translate-string "&" "\\gnusampersand{}")
 292     (latexi-translate-string "%" "\\gnuspercent{}")
 293     (latexi-translate-string "#" "\\gnushash{}")
 294     (latexi-translate-string "^" "\\gnushat{}")
 295     (latexi-translate-string "~" "\\gnustilde{}")
 296     (latexi-translate-string "_" "\\gnusunderline{}")
 297     (latexi-translate-string "¬" "\\gnusnot{}")
 298     (goto-char (point-min))
 299     (while (search-forward "duppat{}" nil t)
 300       (replace-match "@" t t))
 301     (latexi-translate-string "@@" "@")
 302     (latexi-translate-string "<" "\\gnusless{}")
 303     (latexi-translate-string ">" "\\gnusgreater{}")
 304     (goto-char (point-min))
 305     (search-forward "label{Top}" nil t)
 306     (while (re-search-forward "\\\\[ntr]\\b" nil t)
 307       (when (save-match-data
 308               (or (not (save-excursion
 309                          (search-backward "begin{verbatim}" nil t)))
 310                   (> (save-excursion
 311                        (search-backward "end{verbatim"))
 312                      (save-excursion
 313                        (search-backward "begin{verbatim}")))))
 314         (goto-char (match-beginning 0))
 315         (delete-char 1)
 316         (insert "\\gnusbackslash{}")))
 317     (latexi-translate-string "\\\\" "\\gnusbackslash{}")
 318     (goto-char (point-min))
 319     (while (re-search-forward "\\\\[][{}]" nil t)
 320       (goto-char (match-beginning 0))
 321       (delete-char 1))
 322     (latexi-contributors)
 323     (let ((coding-system-for-write 'iso-8859-1))
 324       (write-region (point-min) (point-max) (concat file ".latexi")))))
 325
 326 (defun latexi-translate-string (in out)
 327   (let (yes)
 328     (goto-char (point-min))
 329     (search-forward "label{Top}" nil t)
 330     (while (search-forward in nil t)
 331       (when (save-match-data
 332               (or (not (save-excursion
 333                          (search-backward "begin{verbatim}" nil t)))
 334                   (> (save-excursion
 335                        (re-search-backward "end{verbatim}\\|end{verse}"))
 336                      (save-excursion
 337                        (re-search-backward
 338                         "begin{verbatim}\\|begin{verse}")))))
 339         (replace-match out t t)))))
 340
 341 (defun latexi-contributors ()
 342   (goto-char (point-min))
 343   (when (re-search-forward "^Also thanks to the following" nil t)
 344     (forward-line 2)
 345     (narrow-to-region
 346      (point)
 347      (1- (search-forward "\n\n")))
 348     (when (re-search-backward "^and" nil t)
 349       (latexi-strip-line))
 350     (goto-char (point-min))
 351     (while (re-search-forward "[.,] *$" nil t)
 352       (replace-match "" t t))
 353     (goto-char (point-min))
 354     (let (names)
 355       (while (not (eobp))
 356         (push (buffer-substring (point) (progn (end-of-line) (point)))
 357               names)
 358         (forward-line 1))
 359       (delete-region (point-min) (point-max))
 360       (insert "\\begin{tabular}{lll}\n")
 361       (setq names (nreverse (delete "" names)))
 362       (while names
 363         (insert (pop names) " & " (or (pop names) "\\mbox{}")
 364                 " & " (or (pop names) "\\mbox{}")
 365                 "\\\\\n"))
 366       (insert "\\end{tabular}\n")
 367       (widen))))
 368