libmdoc.h

   1 /*      $Id: libmdoc.h,v 1.88 2014/08/01 17:40:34 schwarze Exp $ */
   2 /*
   3  * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
   4  * Copyright (c) 2013 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 #ifndef LIBMDOC_H
  19 #define LIBMDOC_H
  20
  21 enum    mdoc_next {
  22         MDOC_NEXT_SIBLING = 0,
  23         MDOC_NEXT_CHILD
  24 };
  25
  26 struct  mdoc {
  27         struct mparse    *parse; /* parse pointer */
  28         const char       *defos; /* default argument for .Os */
  29         int               quick; /* abort parse early */
  30         int               flags; /* parse flags */
  31 #define MDOC_LITERAL     (1 << 1) /* in a literal scope */
  32 #define MDOC_PBODY       (1 << 2) /* in the document body */
  33 #define MDOC_NEWLINE     (1 << 3) /* first macro/text in a line */
  34 #define MDOC_PHRASELIT   (1 << 4) /* literal within a partila phrase */
  35 #define MDOC_PPHRASE     (1 << 5) /* within a partial phrase */
  36 #define MDOC_FREECOL     (1 << 6) /* `It' invocation should close */
  37 #define MDOC_SYNOPSIS    (1 << 7) /* SYNOPSIS-style formatting */
  38 #define MDOC_KEEP        (1 << 8) /* in a word keep */
  39 #define MDOC_SMOFF       (1 << 9) /* spacing is off */
  40         enum mdoc_next    next; /* where to put the next node */
  41         struct mdoc_node *last; /* the last node parsed */
  42         struct mdoc_node *first; /* the first node parsed */
  43         struct mdoc_node *last_es; /* the most recent Es node */
  44         struct mdoc_meta  meta; /* document meta-data */
  45         enum mdoc_sec     lastnamed;
  46         enum mdoc_sec     lastsec;
  47         struct roff      *roff;
  48 };
  49
  50 #define MACRO_PROT_ARGS struct mdoc *mdoc, \
  51                         enum mdoct tok, \
  52                         int line, \
  53                         int ppos, \
  54                         int *pos, \
  55                         char *buf
  56
  57 struct  mdoc_macro {
  58         int             (*fp)(MACRO_PROT_ARGS);
  59         int               flags;
  60 #define MDOC_CALLABLE    (1 << 0)
  61 #define MDOC_PARSED      (1 << 1)
  62 #define MDOC_EXPLICIT    (1 << 2)
  63 #define MDOC_PROLOGUE    (1 << 3)
  64 #define MDOC_IGNDELIM    (1 << 4)
  65 #define MDOC_JOIN        (1 << 5)
  66 };
  67
  68 enum    margserr {
  69         ARGS_ERROR,
  70         ARGS_EOLN, /* end-of-line */
  71         ARGS_WORD, /* normal word */
  72         ARGS_PUNCT, /* series of punctuation */
  73         ARGS_QWORD, /* quoted word */
  74         ARGS_PHRASE, /* Ta'd phrase (-column) */
  75         ARGS_PPHRASE, /* tabbed phrase (-column) */
  76         ARGS_PEND /* last phrase (-column) */
  77 };
  78
  79 enum    margverr {
  80         ARGV_ERROR,
  81         ARGV_EOLN, /* end of line */
  82         ARGV_ARG, /* valid argument */
  83         ARGV_WORD /* normal word (or bad argument---same thing) */
  84 };
  85
  86 /*
  87  * A punctuation delimiter is opening, closing, or "middle mark"
  88  * punctuation.  These govern spacing.
  89  * Opening punctuation (e.g., the opening parenthesis) suppresses the
  90  * following space; closing punctuation (e.g., the closing parenthesis)
  91  * suppresses the leading space; middle punctuation (e.g., the vertical
  92  * bar) can do either.  The middle punctuation delimiter bends the rules
  93  * depending on usage.
  94  */
  95 enum    mdelim {
  96         DELIM_NONE = 0,
  97         DELIM_OPEN,
  98         DELIM_MIDDLE,
  99         DELIM_CLOSE,
 100         DELIM_MAX
 101 };
 102
 103 extern  const struct mdoc_macro *const mdoc_macros;
 104
 105 __BEGIN_DECLS
 106
 107 int               mdoc_macro(MACRO_PROT_ARGS);
 108 int               mdoc_word_alloc(struct mdoc *,
 109                         int, int, const char *);
 110 void              mdoc_word_append(struct mdoc *, const char *);
 111 int               mdoc_elem_alloc(struct mdoc *, int, int,
 112                         enum mdoct, struct mdoc_arg *);
 113 int               mdoc_block_alloc(struct mdoc *, int, int,
 114                         enum mdoct, struct mdoc_arg *);
 115 int               mdoc_head_alloc(struct mdoc *, int, int, enum mdoct);
 116 int               mdoc_tail_alloc(struct mdoc *, int, int, enum mdoct);
 117 int               mdoc_body_alloc(struct mdoc *, int, int, enum mdoct);
 118 int               mdoc_endbody_alloc(struct mdoc *, int, int, enum mdoct,
 119                         struct mdoc_node *, enum mdoc_endbody);
 120 void              mdoc_node_delete(struct mdoc *, struct mdoc_node *);
 121 int               mdoc_node_relink(struct mdoc *, struct mdoc_node *);
 122 void              mdoc_hash_init(void);
 123 enum mdoct        mdoc_hash_find(const char *);
 124 const char       *mdoc_a2att(const char *);
 125 const char       *mdoc_a2lib(const char *);
 126 const char       *mdoc_a2st(const char *);
 127 const char       *mdoc_a2arch(const char *);
 128 const char       *mdoc_a2vol(const char *);
 129 int               mdoc_valid_pre(struct mdoc *, struct mdoc_node *);
 130 int               mdoc_valid_post(struct mdoc *);
 131 enum margverr     mdoc_argv(struct mdoc *, int, enum mdoct,
 132                         struct mdoc_arg **, int *, char *);
 133 void              mdoc_argv_free(struct mdoc_arg *);
 134 enum margserr     mdoc_args(struct mdoc *, int,
 135                         int *, char *, enum mdoct, char **);
 136 enum margserr     mdoc_zargs(struct mdoc *, int,
 137                         int *, char *, char **);
 138 int               mdoc_macroend(struct mdoc *);
 139 enum mdelim       mdoc_isdelim(const char *);
 140
 141 __END_DECLS
 142
 143 #endif /*!LIBMDOC_H*/