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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"
  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                ((equal command "node")
 134                 (latexi-strip-line)
 135                 (unless (string-match "Index" arg)
 136                   (insert (format "\\label{%s}\n" arg))))
 137                ((equal command "contents")
 138                 (latexi-strip-line)
 139                 ;;(insert (format "\\tableofcontents\n" arg))
 140                 )
 141                ((member command '("titlepage"))
 142                 (latexi-begin-command command))
 143                ((member command '("lisp" "example"))
 144                 (latexi-strip-line)
 145                 (insert (format "\\begin{verbatim}\n"))
 146                 (setq verbatim (point)))
 147                ((member command '("center"))
 148                 (latexi-strip-line)
 149                 (insert (format "\\begin{%s}%s\\end{%s}\n"
 150                                 command arg command)))
 151                ((member command '("end"))
 152                 (cond
 153                  ((member arg '("titlepage"))
 154                   (latexi-strip-line)
 155                   (insert (format "\\end{%s}\n" arg)))
 156                  ((equal arg "quotation")
 157                   (latexi-strip-line)
 158                   (insert (format "\\end{verse}\n")))
 159                  ((member arg '("lisp" "example"))
 160                   (latexi-strip-line)
 161                   (save-excursion
 162                     (save-restriction
 163                       (narrow-to-region verbatim (point))
 164                       (goto-char (point-min))
 165                       (while (search-forward "@{" nil t)
 166                         (replace-match "{" t t))
 167                       (goto-char (point-min))
 168                       (while (search-forward "@}" nil t)
 169                         (replace-match "}" t t))))
 170                   (setq verbatim nil)
 171                   (insert "\\end{verbatim}\n"))
 172                  ((member arg '("table"))
 173                   (setq item-string (pop item-stack))
 174                   (latexi-strip-line)
 175                   (insert (format "\\end{%slist}\n" (pop list-stack))))
 176                  ((member arg '("itemize" "enumerate"))
 177                   (setq item-string (pop item-stack))
 178                   (latexi-strip-line)
 179                   (insert (format "\\end{%s}\n" arg)))
 180                  ((member arg '("iflatex" "iftex" "cartouche"))
 181                   (latexi-strip-line))
 182                  (t
 183                   (error "Unknown end arg: %s" arg))))
 184                ((member command '("table"))
 185                 (push item-string item-stack)
 186                 (push (substring arg 1) list-stack)
 187                 (setq item-string
 188                       (format "[@%s{%%s}]" (car list-stack)))
 189                 (latexi-strip-line)
 190                 (insert (format "\\begin{%slist}\n" (car list-stack))))
 191                ((member command '("itemize" "enumerate"))
 192                 (push item-string item-stack)
 193                 (cond
 194                  ((member arg '("@bullet"))
 195                   (setq item-string "[\\gnusbullet]"))
 196                  (t
 197                   (setq item-string "")))
 198                 (latexi-strip-line)
 199                 (insert (format "\\begin{%s}\n" command)))
 200                ((member command '("item"))
 201                 (latexi-strip-line)
 202                 (insert (format "\\%s%s\n" command (format item-string arg))))
 203                ((equal command "itemx")
 204                 (latexi-strip-line)
 205                 (insert (format "\\gnusitemx{%s}\n" (format item-string arg))))
 206                ((eq (aref command 0) ?@)
 207                 (goto-char (match-beginning 0))
 208                 (delete-char 2)
 209                 (insert "duppat{}"))
 210                ((equal command "settitle")
 211                 (latexi-strip-line)
 212                 (if (not as-a-chapter)
 213                     (insert
 214                      (format "\\newcommand{\\gnustitlename}{%s}\n" arg))))
 215                ((equal command "title")
 216                 (latexi-strip-line)
 217                 (insert (format "\\gnustitlename{%s}\n" arg)))
 218                ((equal command "author")
 219                 (latexi-strip-line)
 220                 (insert (format "\\gnusauthor{%s}\n" arg)))
 221                ((equal command "quotation")
 222                 (latexi-begin-command "verse"))
 223                ((equal command "page")
 224                 (latexi-strip-line)
 225                 (insert (format "\\newpage\n" arg)))
 226                ((equal command "'s")
 227                 (goto-char (match-beginning 0))
 228                 (delete-char 1))
 229                ((equal command "include")
 230                 (latexi-strip-line)
 231                 (string-match "\\.texi" arg)
 232                 (insert (format "\\input{%s.latexi}\n"
 233                                 (substring arg 0 (match-beginning 0)))))
 234                ((equal command "noindent")
 235                 (latexi-strip-line)
 236                 (insert "\\noindent\n"))
 237                ((equal command "printindex")
 238                 (latexi-strip-line)
 239                 ;;(insert
 240                 ;; (format
 241                 ;;  "\\begin{theindex}\\input{gnus.%s}\\end{theindex}\n" arg))
 242                 )
 243                (t
 244                 (error "Unknown command (line %d): %s"
 245                        (save-excursion
 246                          (widen)
 247                          (1+ (count-lines (point-min) (progn
 248                                                         (beginning-of-line)
 249                                                         (point)))))
 250                        command))))
 251           ;; These are commands with {}.
 252           (setq arg (match-string 5))
 253           (cond
 254            ((member command '("anchor"))
 255             (latexi-strip-line))
 256            ((member command '("ref" "xref" "pxref"))
 257             (latexi-exchange-command (concat "gnus" command) arg))
 258            ((member command '("sc" "file" "dfn" "emph" "kbd" "uref"
 259                               "code" "samp" "var" "strong" "i"
 260                               "result"))
 261             (goto-char (match-beginning 0))
 262             (delete-char 1)
 263             (insert "\\gnus"))
 264            ((member command '("copyright" "footnote"))
 265             (goto-char (match-beginning 0))
 266             (delete-char 1)
 267             (insert "\\"))
 268            ((member command '("dots"))
 269             (goto-char (match-beginning 0))
 270             (delete-region (match-beginning 0) (match-end 0))
 271             (insert "..."))
 272            ((eq (aref command 0) ?@)
 273             (goto-char (match-beginning 0))
 274             (delete-char 2)
 275             (insert "duppat{}"))
 276            (t
 277             (error "Unknown command (line %d): %s"
 278                    (save-excursion
 279                      (widen)
 280                      (1+ (count-lines (point-min) (progn
 281                                                     (beginning-of-line)
 282                                                     (point)))))
 283                    command))))))
 284     (latexi-translate-string "$" "\\gnusdollar{}")
 285     (latexi-translate-string "&" "\\gnusampersand{}")
 286     (latexi-translate-string "%" "\\gnuspercent{}")
 287     (latexi-translate-string "#" "\\gnushash{}")
 288     (latexi-translate-string "^" "\\gnushat{}")
 289     (latexi-translate-string "~" "\\gnustilde{}")
 290     (latexi-translate-string "_" "\\gnusunderline{}")
 291     (latexi-translate-string "¬" "\\gnusnot{}")
 292     (goto-char (point-min))
 293     (while (search-forward "duppat{}" nil t)
 294       (replace-match "@" t t))
 295     (latexi-translate-string "@@" "@")
 296     (latexi-translate-string "<" "\\gnusless{}")
 297     (latexi-translate-string ">" "\\gnusgreater{}")
 298     (goto-char (point-min))
 299     (search-forward "label{Top}" nil t)
 300     (while (re-search-forward "\\\\[ntr]\\b" nil t)
 301       (when (save-match-data
 302               (or (not (save-excursion
 303                          (search-backward "begin{verbatim}" nil t)))
 304                   (> (save-excursion
 305                        (search-backward "end{verbatim"))
 306                      (save-excursion
 307                        (search-backward "begin{verbatim}")))))
 308         (goto-char (match-beginning 0))
 309         (delete-char 1)
 310         (insert "\\gnusbackslash{}")))
 311     (latexi-translate-string "\\\\" "\\gnusbackslash{}")
 312     (goto-char (point-min))
 313     (while (re-search-forward "\\\\[][{}]" nil t)
 314       (goto-char (match-beginning 0))
 315       (delete-char 1))
 316     (latexi-contributors)
 317     (let ((coding-system-for-write 'iso-8859-1))
 318       (write-region (point-min) (point-max) (concat file ".latexi")))))
 319
 320 (defun latexi-translate-string (in out)
 321   (let (yes)
 322     (goto-char (point-min))
 323     (search-forward "label{Top}" nil t)
 324     (while (search-forward in nil t)
 325       (when (save-match-data
 326               (or (not (save-excursion
 327                          (search-backward "begin{verbatim}" nil t)))
 328                   (> (save-excursion
 329                        (re-search-backward "end{verbatim}\\|end{verse}"))
 330                      (save-excursion
 331                        (re-search-backward
 332                         "begin{verbatim}\\|begin{verse}")))))
 333         (replace-match out t t)))))
 334
 335 (defun latexi-contributors ()
 336   (goto-char (point-min))
 337   (when (re-search-forward "^Also thanks to the following" nil t)
 338     (forward-line 2)
 339     (narrow-to-region
 340      (point)
 341      (1- (search-forward "\n\n")))
 342     (when (re-search-backward "^and" nil t)
 343       (latexi-strip-line))
 344     (goto-char (point-min))
 345     (while (re-search-forward "[.,] *$" nil t)
 346       (replace-match "" t t))
 347     (goto-char (point-min))
 348     (let (names)
 349       (while (not (eobp))
 350         (push (buffer-substring (point) (progn (end-of-line) (point)))
 351               names)
 352         (forward-line 1))
 353       (delete-region (point-min) (point-max))
 354       (insert "\\begin{tabular}{lll}\n")
 355       (setq names (nreverse (delete "" names)))
 356       (while names
 357         (insert (pop names) " & " (or (pop names) "\\mbox{}")
 358                 " & " (or (pop names) "\\mbox{}")
 359                 "\\\\\n"))
 360       (insert "\\end{tabular}\n")
 361       (widen))))
 362