xref: /dragonfly/contrib/mdocml/roff_html.c (revision 99db7d0e)
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
roff_html_pre(struct html * h,const struct roff_node * n)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
roff_html_pre_br(ROFF_HTML_ARGS)67 roff_html_pre_br(ROFF_HTML_ARGS)
68 {
69 	print_otag(h, TAG_BR, "");
70 }
71 
72 static void
roff_html_pre_ce(ROFF_HTML_ARGS)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
roff_html_pre_fi(ROFF_HTML_ARGS)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
roff_html_pre_ft(ROFF_HTML_ARGS)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
roff_html_pre_nf(ROFF_HTML_ARGS)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
roff_html_pre_sp(ROFF_HTML_ARGS)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 }
120