roff_html.c

   1 /*      $Id: roff_html.c,v 1.20 2019/04/30 15:53:01 schwarze Exp $ */
   2 /*
   3  * Copyright (c) 2010 Kristaps Dzonsons <kristaps@bsd.lv>
   4  * Copyright (c) 2014, 2017, 2018, 2019 Ingo Schwarze <schwarze@openbsd.org>
   5  *
   6  * Permission to use, copy, modify, and distribute this software for any
   7  * purpose with or without fee is hereby granted, provided that the above
   8  * copyright notice and this permission notice appear in all copies.
   9  *
  10  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  11  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  12  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  13  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  14  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  15  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  16  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  17  */
  18 #include <sys/types.h>
  19
  20 #include <assert.h>
  21 #include <stdio.h>
  22 #include <string.h>
  23
  24 #include "mandoc.h"
  25 #include "roff.h"
  26 #include "out.h"
  27 #include "html.h"
  28
  29 #define ROFF_HTML_ARGS struct html *h, const struct roff_node *n
  30
  31 typedef void    (*roff_html_pre_fp)(ROFF_HTML_ARGS);
  32
  33 static  void      roff_html_pre_br(ROFF_HTML_ARGS);
  34 static  void      roff_html_pre_ce(ROFF_HTML_ARGS);
  35 static  void      roff_html_pre_fi(ROFF_HTML_ARGS);
  36 static  void      roff_html_pre_ft(ROFF_HTML_ARGS);
  37 static  void      roff_html_pre_nf(ROFF_HTML_ARGS);
  38 static  void      roff_html_pre_sp(ROFF_HTML_ARGS);
  39
  40 static  const roff_html_pre_fp roff_html_pre_acts[ROFF_MAX] = {
  41         roff_html_pre_br,  /* br */
  42         roff_html_pre_ce,  /* ce */
  43         roff_html_pre_fi,  /* fi */
  44         roff_html_pre_ft,  /* ft */
  45         NULL,  /* ll */
  46         NULL,  /* mc */
  47         roff_html_pre_nf,  /* nf */
  48         NULL,  /* po */
  49         roff_html_pre_ce,  /* rj */
  50         roff_html_pre_sp,  /* sp */
  51         NULL,  /* ta */
  52         NULL,  /* ti */
  53 };
  54
  55
  56 void
  57 roff_html_pre(struct html *h, const struct roff_node *n)
  58 {
  59         assert(n->tok < ROFF_MAX);
  60         if (roff_html_pre_acts[n->tok] != NULL)
  61                 (*roff_html_pre_acts[n->tok])(h, n);
  62 }
  63
  64 static void
  65 roff_html_pre_br(ROFF_HTML_ARGS)
  66 {
  67         print_otag(h, TAG_BR, "");
  68 }
  69
  70 static void
  71 roff_html_pre_ce(ROFF_HTML_ARGS)
  72 {
  73         for (n = n->child->next; n != NULL; n = n->next) {
  74                 if (n->type == ROFFT_TEXT) {
  75                         if (n->flags & NODE_LINE)
  76                                 roff_html_pre_br(h, n);
  77                         print_text(h, n->string);
  78                 } else
  79                         roff_html_pre(h, n);
  80         }
  81         roff_html_pre_br(h, n);
  82 }
  83
  84 static void
  85 roff_html_pre_fi(ROFF_HTML_ARGS)
  86 {
  87         if (html_fillmode(h, TOKEN_NONE) == ROFF_fi)
  88                 print_otag(h, TAG_BR, "");
  89 }
  90
  91 static void
  92 roff_html_pre_ft(ROFF_HTML_ARGS)
  93 {
  94         const char      *cp;
  95
  96         cp = n->child->string;
  97         html_setfont(h, mandoc_font(cp, (int)strlen(cp)));
  98 }
  99
 100 static void
 101 roff_html_pre_nf(ROFF_HTML_ARGS)
 102 {
 103         if (html_fillmode(h, TOKEN_NONE) == ROFF_nf)
 104                 print_otag(h, TAG_BR, "");
 105 }
 106
 107 static void
 108 roff_html_pre_sp(ROFF_HTML_ARGS)
 109 {
 110         if (html_fillmode(h, TOKEN_NONE) == ROFF_nf) {
 111                 h->col++;
 112                 print_endline(h);
 113         } else {
 114                 html_close_paragraph(h);
 115                 print_otag(h, TAG_P, "c", "Pp");
 116         }
 117 }