1 /* $Id: html.h,v 1.47 2011/10/05 21:35:17 kristaps Exp $ */
2 /*
3 * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
4 *
5 * Permission to use, copy, modify, and distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
8 *
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16 */
17 #ifndef HTML_H
18 #define HTML_H
19
20 __BEGIN_DECLS
21
22 enum htmltag {
23 TAG_HTML,
24 TAG_HEAD,
25 TAG_BODY,
26 TAG_META,
27 TAG_TITLE,
28 TAG_DIV,
29 TAG_H1,
30 TAG_H2,
31 TAG_SPAN,
32 TAG_LINK,
33 TAG_BR,
34 TAG_A,
35 TAG_TABLE,
36 TAG_TBODY,
37 TAG_COL,
38 TAG_TR,
39 TAG_TD,
40 TAG_LI,
41 TAG_UL,
42 TAG_OL,
43 TAG_DL,
44 TAG_DT,
45 TAG_DD,
46 TAG_BLOCKQUOTE,
47 TAG_P,
48 TAG_PRE,
49 TAG_B,
50 TAG_I,
51 TAG_CODE,
52 TAG_SMALL,
53 TAG_MAX
54 };
55
56 enum htmlattr {
57 ATTR_HTTPEQUIV,
58 ATTR_CONTENT,
59 ATTR_NAME,
60 ATTR_REL,
61 ATTR_HREF,
62 ATTR_TYPE,
63 ATTR_MEDIA,
64 ATTR_CLASS,
65 ATTR_STYLE,
66 ATTR_WIDTH,
67 ATTR_ID,
68 ATTR_SUMMARY,
69 ATTR_ALIGN,
70 ATTR_COLSPAN,
71 ATTR_MAX
72 };
73
74 enum htmlfont {
75 HTMLFONT_NONE = 0,
76 HTMLFONT_BOLD,
77 HTMLFONT_ITALIC,
78 HTMLFONT_MAX
79 };
80
81 struct tag {
82 struct tag *next;
83 enum htmltag tag;
84 };
85
86 struct tagq {
87 struct tag *head;
88 };
89
90 struct htmlpair {
91 enum htmlattr key;
92 const char *val;
93 };
94
95 #define PAIR_INIT(p, t, v) \
96 do { \
97 (p)->key = (t); \
98 (p)->val = (v); \
99 } while (/* CONSTCOND */ 0)
100
101 #define PAIR_ID_INIT(p, v) PAIR_INIT(p, ATTR_ID, v)
102 #define PAIR_CLASS_INIT(p, v) PAIR_INIT(p, ATTR_CLASS, v)
103 #define PAIR_HREF_INIT(p, v) PAIR_INIT(p, ATTR_HREF, v)
104 #define PAIR_STYLE_INIT(p, h) PAIR_INIT(p, ATTR_STYLE, (h)->buf)
105 #define PAIR_SUMMARY_INIT(p, v) PAIR_INIT(p, ATTR_SUMMARY, v)
106
107 enum htmltype {
108 HTML_HTML_4_01_STRICT,
109 HTML_XHTML_1_0_STRICT
110 };
111
112 struct html {
113 int flags;
114 #define HTML_NOSPACE (1 << 0) /* suppress next space */
115 #define HTML_IGNDELIM (1 << 1)
116 #define HTML_KEEP (1 << 2)
117 #define HTML_PREKEEP (1 << 3)
118 #define HTML_NONOSPACE (1 << 4) /* never add spaces */
119 #define HTML_LITERAL (1 << 5) /* literal (e.g., <PRE>) context */
120 struct tagq tags; /* stack of open tags */
121 struct rofftbl tbl; /* current table */
122 struct tag *tblt; /* current open table scope */
123 struct mchars *symtab; /* character-escapes */
124 char *base_man; /* base for manpage href */
125 char *base_includes; /* base for include href */
126 char *style; /* style-sheet URI */
127 char buf[BUFSIZ]; /* see bufcat and friends */
128 size_t buflen;
129 struct tag *metaf; /* current open font scope */
130 enum htmlfont metal; /* last used font */
131 enum htmlfont metac; /* current font mode */
132 enum htmltype type; /* output media type */
133 int oflags; /* output options */
134 #define HTML_FRAGMENT (1 << 0) /* don't emit HTML/HEAD/BODY */
135 };
136
137 void print_gen_decls(struct html *);
138 void print_gen_head(struct html *);
139 struct tag *print_otag(struct html *, enum htmltag,
140 int, const struct htmlpair *);
141 void print_tagq(struct html *, const struct tag *);
142 void print_stagq(struct html *, const struct tag *);
143 void print_text(struct html *, const char *);
144 void print_tblclose(struct html *);
145 void print_tbl(struct html *, const struct tbl_span *);
146 void print_eqn(struct html *, const struct eqn *);
147
148 void bufcat_fmt(struct html *, const char *, ...);
149 void bufcat(struct html *, const char *);
150 void bufcat_id(struct html *, const char *);
151 void bufcat_style(struct html *,
152 const char *, const char *);
153 void bufcat_su(struct html *, const char *,
154 const struct roffsu *);
155 void bufinit(struct html *);
156 void buffmt_man(struct html *,
157 const char *, const char *);
158 void buffmt_includes(struct html *, const char *);
159
160 int html_strlen(const char *);
161
162 __END_DECLS
163
164 #endif /*!HTML_H*/