gnu/dist/groff/src/libs/libgroff/htmlhint.cpp

   1 /*      $NetBSD$        */
   2
   3 /* Copyright (C) 2000, 2001, 2002 Free Software Foundation, Inc.
   4      Written by Gaius Mulley (gaius@glam.ac.uk)
   5
   6 This file is part of groff.
   7
   8 groff is free software; you can redistribute it and/or modify it under
   9 the terms of the GNU General Public License as published by the Free
  10 Software Foundation; either version 2, or (at your option) any later
  11 version.
  12
  13 groff is distributed in the hope that it will be useful, but WITHOUT ANY
  14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  15 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  16 for more details.
  17
  18 You should have received a copy of the GNU General Public License along
  19 with groff; see the file COPYING.  If not, write to the Free Software
  20 Foundation, 51 Franklin St - Fifth Floor, Boston, MA 02110-1301, USA. */
  21
  22 #include "lib.h"
  23
  24 #include <stddef.h>
  25 #include <stdlib.h>
  26
  27 #include "nonposix.h"
  28 #include "stringclass.h"
  29 #include "html-strings.h"
  30
  31 /*
  32  *  This file contains a very simple set of routines which might
  33  *  be shared by preprocessors.  It allows a preprocessor to indicate
  34  *  when an inline image should be created.
  35  *  This string is intercepted by pre-grohtml and substituted for
  36  *  the image name and suppression escapes.
  37  *
  38  *  pre-html runs troff twice, once with -Thtml and once with -Tps.
  39  *  troff -Thtml device driver emits a <src='image'.png> tag
  40  *  and the postscript device driver works out the min/max limits
  41  *  of the graphic region.  These region limits are read by pre-html
  42  *  and an image is generated via troff -Tps -> gs -> png
  43  */
  44
  45 /*
  46  *  html_begin_suppress - emit a start of image tag which will be seen
  47  *                        by pre-html.
  48  */
  49 void html_begin_suppress()
  50 {
  51   put_string(HTML_IMAGE_INLINE_BEGIN, stdout);
  52 }
  53
  54 /*
  55  *  html_end_suppress - emit an end of image tag which will be seen
  56  *                      by pre-html.
  57  */
  58 void html_end_suppress()
  59 {
  60   put_string(HTML_IMAGE_INLINE_END, stdout);
  61 }