xref: /minix/external/bsd/mdocml/dist/html.h (revision 0a6a1f1d)
1 /*	Id: html.h,v 1.50 2014/01/05 19:10:56 joerg 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_BI,
79 	HTMLFONT_MAX
80 };
81 
82 struct	tag {
83 	struct tag	 *next;
84 	enum htmltag	  tag;
85 };
86 
87 struct tagq {
88 	struct tag	 *head;
89 };
90 
91 struct	htmlpair {
92 	enum htmlattr	  key;
93 	const char	 *val;
94 };
95 
96 #define	PAIR_INIT(p, t, v) \
97 	do { \
98 		(p)->key = (t); \
99 		(p)->val = (v); \
100 	} while (/* CONSTCOND */ 0)
101 
102 #define	PAIR_ID_INIT(p, v)	PAIR_INIT(p, ATTR_ID, v)
103 #define	PAIR_CLASS_INIT(p, v)	PAIR_INIT(p, ATTR_CLASS, v)
104 #define	PAIR_HREF_INIT(p, v)	PAIR_INIT(p, ATTR_HREF, v)
105 #define	PAIR_STYLE_INIT(p, h)	PAIR_INIT(p, ATTR_STYLE, (h)->buf)
106 #define	PAIR_SUMMARY_INIT(p, v)	PAIR_INIT(p, ATTR_SUMMARY, v)
107 
108 enum	htmltype {
109 	HTML_HTML_4_01_STRICT,
110 	HTML_XHTML_1_0_STRICT
111 };
112 
113 struct	html {
114 	int		  flags;
115 #define	HTML_NOSPACE	 (1 << 0) /* suppress next space */
116 #define	HTML_IGNDELIM	 (1 << 1)
117 #define	HTML_KEEP	 (1 << 2)
118 #define	HTML_PREKEEP	 (1 << 3)
119 #define	HTML_NONOSPACE	 (1 << 4) /* never add spaces */
120 #define	HTML_LITERAL	 (1 << 5) /* literal (e.g., <PRE>) context */
121 #define	HTML_SKIPCHAR	 (1 << 6) /* skip the next character */
122 	struct tagq	  tags; /* stack of open tags */
123 	struct rofftbl	  tbl; /* current table */
124 	struct tag	 *tblt; /* current open table scope */
125 	struct mchars	 *symtab; /* character-escapes */
126 	char		 *base_man; /* base for manpage href */
127 	char		 *base_includes; /* base for include href */
128 	char		 *style; /* style-sheet URI */
129 	char		  buf[BUFSIZ]; /* see bufcat and friends */
130 	size_t		  buflen;
131 	struct tag	 *metaf; /* current open font scope */
132 	enum htmlfont	  metal; /* last used font */
133 	enum htmlfont	  metac; /* current font mode */
134 	enum htmltype	  type; /* output media type */
135 	int		  oflags; /* output options */
136 #define	HTML_FRAGMENT	 (1 << 0) /* don't emit HTML/HEAD/BODY */
137 };
138 
139 void		  print_gen_decls(struct html *);
140 void		  print_gen_head(struct html *);
141 struct tag	 *print_otag(struct html *, enum htmltag,
142 				int, const struct htmlpair *);
143 void		  print_tagq(struct html *, const struct tag *);
144 void		  print_stagq(struct html *, const struct tag *);
145 void		  print_text(struct html *, const char *);
146 void		  print_tblclose(struct html *);
147 void		  print_tbl(struct html *, const struct tbl_span *);
148 void		  print_eqn(struct html *, const struct eqn *);
149 
150 #if __GNUC__ - 0 >= 4
151 __attribute__((__format__ (__printf__, 2, 3)))
152 #endif
153 void		  bufcat_fmt(struct html *, const char *, ...);
154 void		  bufcat(struct html *, const char *);
155 void		  bufcat_id(struct html *, const char *);
156 void		  bufcat_style(struct html *,
157 			const char *, const char *);
158 void		  bufcat_su(struct html *, const char *,
159 			const struct roffsu *);
160 void		  bufinit(struct html *);
161 void		  buffmt_man(struct html *,
162 			const char *, const char *);
163 void		  buffmt_includes(struct html *, const char *);
164 
165 int		  html_strlen(const char *);
166 
167 __END_DECLS
168 
169 #endif /*!HTML_H*/
170