html.h

   1 /*      $Id: html.h,v 1.90 2018/05/25 20:23:51 schwarze Exp $ */
   2 /*
   3  * Copyright (c) 2008-2011, 2014 Kristaps Dzonsons <kristaps@bsd.lv>
   4  * Copyright (c) 2017, 2018 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_IDIV,
  27         TAG_H1,
  28         TAG_H2,
  29         TAG_SPAN,
  30         TAG_LINK,
  31         TAG_BR,
  32         TAG_A,
  33         TAG_TABLE,
  34         TAG_COLGROUP,
  35         TAG_COL,
  36         TAG_TR,
  37         TAG_TD,
  38         TAG_LI,
  39         TAG_UL,
  40         TAG_OL,
  41         TAG_DL,
  42         TAG_DT,
  43         TAG_DD,
  44         TAG_PRE,
  45         TAG_VAR,
  46         TAG_CITE,
  47         TAG_B,
  48         TAG_I,
  49         TAG_CODE,
  50         TAG_SMALL,
  51         TAG_STYLE,
  52         TAG_MATH,
  53         TAG_MROW,
  54         TAG_MI,
  55         TAG_MN,
  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    htmlfont {
  73         HTMLFONT_NONE = 0,
  74         HTMLFONT_BOLD,
  75         HTMLFONT_ITALIC,
  76         HTMLFONT_BI,
  77         HTMLFONT_MAX
  78 };
  79
  80 struct  tag {
  81         struct tag       *next;
  82         enum htmltag      tag;
  83 };
  84
  85 struct  html {
  86         int               flags;
  87 #define HTML_NOSPACE     (1 << 0) /* suppress next space */
  88 #define HTML_IGNDELIM    (1 << 1)
  89 #define HTML_KEEP        (1 << 2)
  90 #define HTML_PREKEEP     (1 << 3)
  91 #define HTML_NONOSPACE   (1 << 4) /* never add spaces */
  92 #define HTML_LITERAL     (1 << 5) /* literal (e.g., <PRE>) context */
  93 #define HTML_SKIPCHAR    (1 << 6) /* skip the next character */
  94 #define HTML_NOSPLIT     (1 << 7) /* do not break line before .An */
  95 #define HTML_SPLIT       (1 << 8) /* break line before .An */
  96 #define HTML_NONEWLINE   (1 << 9) /* No line break in nofill mode. */
  97 #define HTML_BUFFER      (1 << 10) /* Collect a word to see if it fits. */
  98         size_t            indent; /* current output indentation level */
  99         int               noindent; /* indent disabled by <pre> */
 100         size_t            col; /* current output byte position */
 101         size_t            bufcol; /* current buf byte position */
 102         char              buf[80]; /* output buffer */
 103         struct tag       *tag; /* last open tag */
 104         struct rofftbl    tbl; /* current table */
 105         struct tag       *tblt; /* current open table scope */
 106         char             *base_man; /* base for manpage href */
 107         char             *base_includes; /* base for include href */
 108         char             *style; /* style-sheet URI */
 109         struct tag       *metaf; /* current open font scope */
 110         enum htmlfont     metal; /* last used font */
 111         enum htmlfont     metac; /* current font mode */
 112         int               oflags; /* output options */
 113 #define HTML_FRAGMENT    (1 << 0) /* don't emit HTML/HEAD/BODY */
 114 };
 115
 116
 117 struct  roff_node;
 118 struct  tbl_span;
 119 struct  eqn_box;
 120
 121 void              roff_html_pre(struct html *, const struct roff_node *);
 122
 123 void              print_gen_comment(struct html *, struct roff_node *);
 124 void              print_gen_decls(struct html *);
 125 void              print_gen_head(struct html *);
 126 struct tag       *print_otag(struct html *, enum htmltag, const char *, ...);
 127 void              print_tagq(struct html *, const struct tag *);
 128 void              print_stagq(struct html *, const struct tag *);
 129 void              print_text(struct html *, const char *);
 130 void              print_tblclose(struct html *);
 131 void              print_tbl(struct html *, const struct tbl_span *);
 132 void              print_eqn(struct html *, const struct eqn_box *);
 133 void              print_paragraph(struct html *);
 134 void              print_endline(struct html *);
 135
 136 char             *html_make_id(const struct roff_node *, int);
 137 int               html_strlen(const char *);