html.h

   1 /*      $Id: html.h,v 1.67 2014/10/28 17:36:19 schwarze Exp $ */
   2 /*
   3  * Copyright (c) 2008-2011, 2014 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_PRE,
  48         TAG_B,
  49         TAG_I,
  50         TAG_CODE,
  51         TAG_SMALL,
  52         TAG_STYLE,
  53         TAG_MATH,
  54         TAG_MROW,
  55         TAG_MI,
  56         TAG_MO,
  57         TAG_MSUP,
  58         TAG_MSUB,
  59         TAG_MSUBSUP,
  60         TAG_MFRAC,
  61         TAG_MSQRT,
  62         TAG_MFENCED,
  63         TAG_MTABLE,
  64         TAG_MTR,
  65         TAG_MTD,
  66         TAG_MUNDEROVER,
  67         TAG_MUNDER,
  68         TAG_MOVER,
  69         TAG_MAX
  70 };
  71
  72 enum    htmlattr {
  73         ATTR_NAME,
  74         ATTR_REL,
  75         ATTR_HREF,
  76         ATTR_TYPE,
  77         ATTR_MEDIA,
  78         ATTR_CLASS,
  79         ATTR_STYLE,
  80         ATTR_ID,
  81         ATTR_COLSPAN,
  82         ATTR_CHARSET,
  83         ATTR_OPEN,
  84         ATTR_CLOSE,
  85         ATTR_MATHVARIANT,
  86         ATTR_MAX
  87 };
  88
  89 enum    htmlfont {
  90         HTMLFONT_NONE = 0,
  91         HTMLFONT_BOLD,
  92         HTMLFONT_ITALIC,
  93         HTMLFONT_BI,
  94         HTMLFONT_MAX
  95 };
  96
  97 struct  tag {
  98         struct tag       *next;
  99         enum htmltag      tag;
 100 };
 101
 102 struct tagq {
 103         struct tag       *head;
 104 };
 105
 106 struct  htmlpair {
 107         enum htmlattr     key;
 108         const char       *val;
 109 };
 110
 111 #define PAIR_INIT(p, t, v) \
 112         do { \
 113                 (p)->key = (t); \
 114                 (p)->val = (v); \
 115         } while (/* CONSTCOND */ 0)
 116
 117 #define PAIR_ID_INIT(p, v)      PAIR_INIT(p, ATTR_ID, v)
 118 #define PAIR_CLASS_INIT(p, v)   PAIR_INIT(p, ATTR_CLASS, v)
 119 #define PAIR_HREF_INIT(p, v)    PAIR_INIT(p, ATTR_HREF, v)
 120 #define PAIR_STYLE_INIT(p, h)   PAIR_INIT(p, ATTR_STYLE, (h)->buf)
 121
 122 struct  html {
 123         int               flags;
 124 #define HTML_NOSPACE     (1 << 0) /* suppress next space */
 125 #define HTML_IGNDELIM    (1 << 1)
 126 #define HTML_KEEP        (1 << 2)
 127 #define HTML_PREKEEP     (1 << 3)
 128 #define HTML_NONOSPACE   (1 << 4) /* never add spaces */
 129 #define HTML_LITERAL     (1 << 5) /* literal (e.g., <PRE>) context */
 130 #define HTML_SKIPCHAR    (1 << 6) /* skip the next character */
 131 #define HTML_NOSPLIT     (1 << 7) /* do not break line before .An */
 132 #define HTML_SPLIT       (1 << 8) /* break line before .An */
 133         struct tagq       tags; /* stack of open tags */
 134         struct rofftbl    tbl; /* current table */
 135         struct tag       *tblt; /* current open table scope */
 136         const struct mchars *symtab; /* character table */
 137         char             *base_man; /* base for manpage href */
 138         char             *base_includes; /* base for include href */
 139         char             *style; /* style-sheet URI */
 140         char              buf[BUFSIZ]; /* see bufcat and friends */
 141         size_t            buflen;
 142         struct tag       *metaf; /* current open font scope */
 143         enum htmlfont     metal; /* last used font */
 144         enum htmlfont     metac; /* current font mode */
 145         int               oflags; /* output options */
 146 #define HTML_FRAGMENT    (1 << 0) /* don't emit HTML/HEAD/BODY */
 147 };
 148
 149 void              print_gen_decls(struct html *);
 150 void              print_gen_head(struct html *);
 151 struct tag       *print_otag(struct html *, enum htmltag,
 152                                 int, const struct htmlpair *);
 153 void              print_tagq(struct html *, const struct tag *);
 154 void              print_stagq(struct html *, const struct tag *);
 155 void              print_text(struct html *, const char *);
 156 void              print_tblclose(struct html *);
 157 void              print_tbl(struct html *, const struct tbl_span *);
 158 void              print_eqn(struct html *, const struct eqn *);
 159 void              print_paragraph(struct html *);
 160
 161 #if __GNUC__ - 0 >= 4
 162 __attribute__((__format__ (__printf__, 2, 3)))
 163 #endif
 164 void              bufcat_fmt(struct html *, const char *, ...);
 165 void              bufcat(struct html *, const char *);
 166 void              bufcat_id(struct html *, const char *);
 167 void              bufcat_style(struct html *,
 168                         const char *, const char *);
 169 void              bufcat_su(struct html *, const char *,
 170                         const struct roffsu *);
 171 void              bufinit(struct html *);
 172 void              buffmt_man(struct html *,
 173                         const char *, const char *);
 174 void              buffmt_includes(struct html *, const char *);
 175
 176 int               html_strlen(const char *);
 177
 178 __END_DECLS
 179
 180 #endif /*!HTML_H*/