contrib/mdocml/roff_html.c

   1 /* $Id: roff_html.c,v 1.21 2020/06/22 19:20:40 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 "config.h"
  19
  20 #include <sys/types.h>
  21
  22 #include <assert.h>
  23 #include <stdio.h>
  24 #include <string.h>
  25
  26 #include "mandoc.h"
  27 #include "roff.h"
  28 #include "out.h"
  29 #include "html.h"
  30
  31 #define ROFF_HTML_ARGS struct html *h, const struct roff_node *n
  32
  33 typedef void    (*roff_html_pre_fp)(ROFF_HTML_ARGS);
  34
  35 static  void      roff_html_pre_br(ROFF_HTML_ARGS);
  36 static  void      roff_html_pre_ce(ROFF_HTML_ARGS);
  37 static  void      roff_html_pre_fi(ROFF_HTML_ARGS);
  38 static  void      roff_html_pre_ft(ROFF_HTML_ARGS);
  39 static  void      roff_html_pre_nf(ROFF_HTML_ARGS);
  40 static  void      roff_html_pre_sp(ROFF_HTML_ARGS);
  41
  42 static  const roff_html_pre_fp roff_html_pre_acts[ROFF_MAX] = {
  43         roff_html_pre_br,  /* br */
  44         roff_html_pre_ce,  /* ce */
  45         roff_html_pre_fi,  /* fi */
  46         roff_html_pre_ft,  /* ft */
  47         NULL,  /* ll */
  48         NULL,  /* mc */
  49         roff_html_pre_nf,  /* nf */
  50         NULL,  /* po */
  51         roff_html_pre_ce,  /* rj */
  52         roff_html_pre_sp,  /* sp */
  53         NULL,  /* ta */
  54         NULL,  /* ti */
  55 };
  56
  57
  58 void
  59 roff_html_pre(struct html *h, const struct roff_node *n)
  60 {
  61         assert(n->tok < ROFF_MAX);
  62         if (roff_html_pre_acts[n->tok] != NULL)
  63                 (*roff_html_pre_acts[n->tok])(h, n);
  64 }
  65
  66 static void
  67 roff_html_pre_br(ROFF_HTML_ARGS)
  68 {
  69         print_otag(h, TAG_BR, "");
  70 }
  71
  72 static void
  73 roff_html_pre_ce(ROFF_HTML_ARGS)
  74 {
  75         for (n = n->child->next; n != NULL; n = n->next) {
  76                 if (n->type == ROFFT_TEXT) {
  77                         if (n->flags & NODE_LINE)
  78                                 roff_html_pre_br(h, n);
  79                         print_text(h, n->string);
  80                 } else
  81                         roff_html_pre(h, n);
  82         }
  83         roff_html_pre_br(h, n);
  84 }
  85
  86 static void
  87 roff_html_pre_fi(ROFF_HTML_ARGS)
  88 {
  89         if (html_fillmode(h, TOKEN_NONE) == ROFF_fi)
  90                 print_otag(h, TAG_BR, "");
  91 }
  92
  93 static void
  94 roff_html_pre_ft(ROFF_HTML_ARGS)
  95 {
  96         const char      *cp;
  97
  98         cp = n->child->string;
  99         html_setfont(h, mandoc_font(cp, (int)strlen(cp)));
 100 }
 101
 102 static void
 103 roff_html_pre_nf(ROFF_HTML_ARGS)
 104 {
 105         if (html_fillmode(h, TOKEN_NONE) == ROFF_nf)
 106                 print_otag(h, TAG_BR, "");
 107 }
 108
 109 static void
 110 roff_html_pre_sp(ROFF_HTML_ARGS)
 111 {
 112         if (html_fillmode(h, TOKEN_NONE) == ROFF_nf) {
 113                 h->col++;
 114                 print_endline(h);
 115         } else {
 116                 html_close_paragraph(h);
 117                 print_otag(h, TAG_P, "c", "Pp");
 118         }
 119 }