xref: /illumos-gate/usr/src/cmd/mandoc/roff_html.c (revision f52943a93040563107b95bccb9db87d9971ef47d)
1 /*	$Id: roff_html.c,v 1.19 2019/01/07 07:26:29 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 	print_metaf(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 }
118