libmdoc.h

   1 /*      $Id: libmdoc.h,v 1.80 2012/07/18 11:11:12 schwarze 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 LIBMDOC_H
  18 #define LIBMDOC_H
  19
  20 enum    mdoc_next {
  21         MDOC_NEXT_SIBLING = 0,
  22         MDOC_NEXT_CHILD
  23 };
  24
  25 struct  mdoc {
  26         struct mparse    *parse; /* parse pointer */
  27         char             *defos; /* default argument for .Os */
  28         int               flags; /* parse flags */
  29 #define MDOC_HALT        (1 << 0) /* error in parse: halt */
  30 #define MDOC_LITERAL     (1 << 1) /* in a literal scope */
  31 #define MDOC_PBODY       (1 << 2) /* in the document body */
  32 #define MDOC_NEWLINE     (1 << 3) /* first macro/text in a line */
  33 #define MDOC_PHRASELIT   (1 << 4) /* literal within a partila phrase */
  34 #define MDOC_PPHRASE     (1 << 5) /* within a partial phrase */
  35 #define MDOC_FREECOL     (1 << 6) /* `It' invocation should close */
  36 #define MDOC_SYNOPSIS    (1 << 7) /* SYNOPSIS-style formatting */
  37         enum mdoc_next    next; /* where to put the next node */
  38         struct mdoc_node *last; /* the last node parsed */
  39         struct mdoc_node *first; /* the first node parsed */
  40         struct mdoc_meta  meta; /* document meta-data */
  41         enum mdoc_sec     lastnamed;
  42         enum mdoc_sec     lastsec;
  43         struct roff      *roff;
  44 };
  45
  46 #define MACRO_PROT_ARGS struct mdoc *m, \
  47                         enum mdoct tok, \
  48                         int line, \
  49                         int ppos, \
  50                         int *pos, \
  51                         char *buf
  52
  53 struct  mdoc_macro {
  54         int             (*fp)(MACRO_PROT_ARGS);
  55         int               flags;
  56 #define MDOC_CALLABLE    (1 << 0)
  57 #define MDOC_PARSED      (1 << 1)
  58 #define MDOC_EXPLICIT    (1 << 2)
  59 #define MDOC_PROLOGUE    (1 << 3)
  60 #define MDOC_IGNDELIM    (1 << 4)
  61         /* Reserved words in arguments treated as text. */
  62 };
  63
  64 enum    margserr {
  65         ARGS_ERROR,
  66         ARGS_EOLN, /* end-of-line */
  67         ARGS_WORD, /* normal word */
  68         ARGS_PUNCT, /* series of punctuation */
  69         ARGS_QWORD, /* quoted word */
  70         ARGS_PHRASE, /* Ta'd phrase (-column) */
  71         ARGS_PPHRASE, /* tabbed phrase (-column) */
  72         ARGS_PEND /* last phrase (-column) */
  73 };
  74
  75 enum    margverr {
  76         ARGV_ERROR,
  77         ARGV_EOLN, /* end of line */
  78         ARGV_ARG, /* valid argument */
  79         ARGV_WORD /* normal word (or bad argument---same thing) */
  80 };
  81
  82 /*
  83  * A punctuation delimiter is opening, closing, or "middle mark"
  84  * punctuation.  These govern spacing.
  85  * Opening punctuation (e.g., the opening parenthesis) suppresses the
  86  * following space; closing punctuation (e.g., the closing parenthesis)
  87  * suppresses the leading space; middle punctuation (e.g., the vertical
  88  * bar) can do either.  The middle punctuation delimiter bends the rules
  89  * depending on usage.
  90  */
  91 enum    mdelim {
  92         DELIM_NONE = 0,
  93         DELIM_OPEN,
  94         DELIM_MIDDLE,
  95         DELIM_CLOSE,
  96         DELIM_MAX
  97 };
  98
  99 extern  const struct mdoc_macro *const mdoc_macros;
 100
 101 __BEGIN_DECLS
 102
 103 #define           mdoc_pmsg(m, l, p, t) \
 104                   mandoc_msg((t), (m)->parse, (l), (p), NULL)
 105 #define           mdoc_nmsg(m, n, t) \
 106                   mandoc_msg((t), (m)->parse, (n)->line, (n)->pos, NULL)
 107 int               mdoc_macro(MACRO_PROT_ARGS);
 108 int               mdoc_word_alloc(struct mdoc *,
 109                         int, int, const char *);
 110 int               mdoc_elem_alloc(struct mdoc *, int, int,
 111                         enum mdoct, struct mdoc_arg *);
 112 int               mdoc_block_alloc(struct mdoc *, int, int,
 113                         enum mdoct, struct mdoc_arg *);
 114 int               mdoc_head_alloc(struct mdoc *, int, int, enum mdoct);
 115 int               mdoc_tail_alloc(struct mdoc *, int, int, enum mdoct);
 116 int               mdoc_body_alloc(struct mdoc *, int, int, enum mdoct);
 117 int               mdoc_endbody_alloc(struct mdoc *m, int line, int pos,
 118                         enum mdoct tok, struct mdoc_node *body,
 119                         enum mdoc_endbody end);
 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*/