html.h

   1 /*      $Id: html.h,v 1.77 2017/01/19 01:00:14 schwarze Exp $ */
   2 /*
   3  * Copyright (c) 2008-2011, 2014 Kristaps Dzonsons <kristaps@bsd.lv>
   4  * Copyright (c) 2017 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
  19 enum    htmltag {
  20         TAG_HTML,
  21         TAG_HEAD,
  22         TAG_BODY,
  23         TAG_META,
  24         TAG_TITLE,
  25         TAG_DIV,
  26         TAG_H1,
  27         TAG_H2,
  28         TAG_SPAN,
  29         TAG_LINK,
  30         TAG_BR,
  31         TAG_A,
  32         TAG_TABLE,
  33         TAG_TBODY,
  34         TAG_COL,
  35         TAG_TR,
  36         TAG_TD,
  37         TAG_LI,
  38         TAG_UL,
  39         TAG_OL,
  40         TAG_DL,
  41         TAG_DT,
  42         TAG_DD,
  43         TAG_BLOCKQUOTE,
  44         TAG_PRE,
  45         TAG_B,
  46         TAG_I,
  47         TAG_CODE,
  48         TAG_SMALL,
  49         TAG_STYLE,
  50         TAG_MATH,
  51         TAG_MROW,
  52         TAG_MI,
  53         TAG_MO,
  54         TAG_MSUP,
  55         TAG_MSUB,
  56         TAG_MSUBSUP,
  57         TAG_MFRAC,
  58         TAG_MSQRT,
  59         TAG_MFENCED,
  60         TAG_MTABLE,
  61         TAG_MTR,
  62         TAG_MTD,
  63         TAG_MUNDEROVER,
  64         TAG_MUNDER,
  65         TAG_MOVER,
  66         TAG_MAX
  67 };
  68
  69 enum    htmlfont {
  70         HTMLFONT_NONE = 0,
  71         HTMLFONT_BOLD,
  72         HTMLFONT_ITALIC,
  73         HTMLFONT_BI,
  74         HTMLFONT_MAX
  75 };
  76
  77 struct  tag {
  78         struct tag       *next;
  79         enum htmltag      tag;
  80 };
  81
  82 struct tagq {
  83         struct tag       *head;
  84 };
  85
  86 struct  html {
  87         int               flags;
  88 #define HTML_NOSPACE     (1 << 0) /* suppress next space */
  89 #define HTML_IGNDELIM    (1 << 1)
  90 #define HTML_KEEP        (1 << 2)
  91 #define HTML_PREKEEP     (1 << 3)
  92 #define HTML_NONOSPACE   (1 << 4) /* never add spaces */
  93 #define HTML_LITERAL     (1 << 5) /* literal (e.g., <PRE>) context */
  94 #define HTML_SKIPCHAR    (1 << 6) /* skip the next character */
  95 #define HTML_NOSPLIT     (1 << 7) /* do not break line before .An */
  96 #define HTML_SPLIT       (1 << 8) /* break line before .An */
  97 #define HTML_NONEWLINE   (1 << 9) /* No line break in nofill mode. */
  98 #define HTML_BUFFER      (1 << 10) /* Collect a word to see if it fits. */
  99         size_t            indent; /* current output indentation level */
 100         int               noindent; /* indent disabled by <pre> */
 101         size_t            col; /* current output byte position */
 102         size_t            bufcol; /* current buf byte position */
 103         char              buf[80]; /* output buffer */
 104         struct tagq       tags; /* stack of open tags */
 105         struct rofftbl    tbl; /* current table */
 106         struct tag       *tblt; /* current open table scope */
 107         char             *base_man; /* base for manpage href */
 108         char             *base_includes; /* base for include href */
 109         char             *style; /* style-sheet URI */
 110         struct tag       *metaf; /* current open font scope */
 111         enum htmlfont     metal; /* last used font */
 112         enum htmlfont     metac; /* current font mode */
 113         int               oflags; /* output options */
 114 #define HTML_FRAGMENT    (1 << 0) /* don't emit HTML/HEAD/BODY */
 115 };
 116
 117
 118 struct  tbl_span;
 119 struct  eqn;
 120
 121 void              print_gen_decls(struct html *);
 122 void              print_gen_head(struct html *);
 123 struct tag       *print_otag(struct html *, enum htmltag, const char *, ...);
 124 void              print_tagq(struct html *, const struct tag *);
 125 void              print_stagq(struct html *, const struct tag *);
 126 void              print_text(struct html *, const char *);
 127 void              print_tblclose(struct html *);
 128 void              print_tbl(struct html *, const struct tbl_span *);
 129 void              print_eqn(struct html *, const struct eqn *);
 130 void              print_paragraph(struct html *);
 131
 132 int               html_strlen(const char *);