xref: /illumos-gate/usr/src/cmd/mandoc/roff_html.c (revision e153cda9f9660e385e8f468253f80e59f5d454d7)
1 /*	$Id: roff_html.c,v 1.12 2018/06/25 14:53:58 schwarze Exp $ */
2 /*
3  * Copyright (c) 2010 Kristaps Dzonsons <kristaps@bsd.lv>
4  * Copyright (c) 2014, 2017, 2018 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 <stddef.h>
22 
23 #include "mandoc.h"
24 #include "roff.h"
25 #include "out.h"
26 #include "html.h"
27 
28 #define	ROFF_HTML_ARGS struct html *h, const struct roff_node *n
29 
30 typedef	void	(*roff_html_pre_fp)(ROFF_HTML_ARGS);
31 
32 static	void	  roff_html_pre_br(ROFF_HTML_ARGS);
33 static	void	  roff_html_pre_ce(ROFF_HTML_ARGS);
34 static	void	  roff_html_pre_sp(ROFF_HTML_ARGS);
35 
36 static	const roff_html_pre_fp roff_html_pre_acts[ROFF_MAX] = {
37 	roff_html_pre_br,  /* br */
38 	roff_html_pre_ce,  /* ce */
39 	NULL,  /* ft */
40 	NULL,  /* ll */
41 	NULL,  /* mc */
42 	NULL,  /* po */
43 	roff_html_pre_ce,  /* rj */
44 	roff_html_pre_sp,  /* sp */
45 	NULL,  /* ta */
46 	NULL,  /* ti */
47 };
48 
49 
50 void
51 roff_html_pre(struct html *h, const struct roff_node *n)
52 {
53 	assert(n->tok < ROFF_MAX);
54 	if (roff_html_pre_acts[n->tok] != NULL)
55 		(*roff_html_pre_acts[n->tok])(h, n);
56 }
57 
58 static void
59 roff_html_pre_br(ROFF_HTML_ARGS)
60 {
61 	struct tag	*t;
62 
63 	t = print_otag(h, TAG_DIV, "");
64 	print_text(h, "\\~");  /* So the div isn't empty. */
65 	print_tagq(h, t);
66 }
67 
68 static void
69 roff_html_pre_ce(ROFF_HTML_ARGS)
70 {
71 	for (n = n->child->next; n != NULL; n = n->next) {
72 		if (n->type == ROFFT_TEXT) {
73 			if (n->flags & NODE_LINE)
74 				roff_html_pre_br(h, n);
75 			print_text(h, n->string);
76 		} else
77 			roff_html_pre(h, n);
78 	}
79 	roff_html_pre_br(h, n);
80 }
81 
82 static void
83 roff_html_pre_sp(ROFF_HTML_ARGS)
84 {
85 	print_paragraph(h);
86 }
87