mdoc.h

   1 /*      $Id: mdoc.h,v 1.66 2009/07/17 10:56:57 kristaps Exp $ */
   2 /*
   3  * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se>
   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 MDOC_H
  18 #define MDOC_H
  19
  20 #include <time.h>
  21
  22 /*
  23  * This library implements a validating scanner/parser for ``mdoc'' roff
  24  * macro documents, a.k.a. BSD manual page documents.  The mdoc.c file
  25  * drives the parser, while macro.c describes the macro ontologies.
  26  * validate.c pre- and post-validates parsed macros, and action.c
  27  * performs actions on parsed and validated macros.
  28  */
  29
  30 /* What follows is a list of ALL possible macros. */
  31
  32 #define MDOC_Ap          0
  33 #define MDOC_Dd          1
  34 #define MDOC_Dt          2
  35 #define MDOC_Os          3
  36 #define MDOC_Sh          4
  37 #define MDOC_Ss          5
  38 #define MDOC_Pp          6
  39 #define MDOC_D1          7
  40 #define MDOC_Dl          8
  41 #define MDOC_Bd          9
  42 #define MDOC_Ed          10
  43 #define MDOC_Bl          11
  44 #define MDOC_El          12
  45 #define MDOC_It          13
  46 #define MDOC_Ad          14
  47 #define MDOC_An          15
  48 #define MDOC_Ar          16
  49 #define MDOC_Cd          17
  50 #define MDOC_Cm          18
  51 #define MDOC_Dv          19
  52 #define MDOC_Er          20
  53 #define MDOC_Ev          21
  54 #define MDOC_Ex          22
  55 #define MDOC_Fa          23
  56 #define MDOC_Fd          24
  57 #define MDOC_Fl          25
  58 #define MDOC_Fn          26
  59 #define MDOC_Ft          27
  60 #define MDOC_Ic          28
  61 #define MDOC_In          29
  62 #define MDOC_Li          30
  63 #define MDOC_Nd          31
  64 #define MDOC_Nm          32
  65 #define MDOC_Op          33
  66 #define MDOC_Ot          34
  67 #define MDOC_Pa          35
  68 #define MDOC_Rv          36
  69 #define MDOC_St          37
  70 #define MDOC_Va          38
  71 #define MDOC_Vt          39
  72 #define MDOC_Xr          40
  73 #define MDOC__A          41
  74 #define MDOC__B          42
  75 #define MDOC__D          43
  76 #define MDOC__I          44
  77 #define MDOC__J          45
  78 #define MDOC__N          46
  79 #define MDOC__O          47
  80 #define MDOC__P          48
  81 #define MDOC__R          49
  82 #define MDOC__T          50
  83 #define MDOC__V          51
  84 #define MDOC_Ac          52
  85 #define MDOC_Ao          53
  86 #define MDOC_Aq          54
  87 #define MDOC_At          55
  88 #define MDOC_Bc          56
  89 #define MDOC_Bf          57
  90 #define MDOC_Bo          58
  91 #define MDOC_Bq          59
  92 #define MDOC_Bsx         60
  93 #define MDOC_Bx          61
  94 #define MDOC_Db          62
  95 #define MDOC_Dc          63
  96 #define MDOC_Do          64
  97 #define MDOC_Dq          65
  98 #define MDOC_Ec          66
  99 #define MDOC_Ef          67
 100 #define MDOC_Em          68
 101 #define MDOC_Eo          69
 102 #define MDOC_Fx          70
 103 #define MDOC_Ms          71
 104 #define MDOC_No          72
 105 #define MDOC_Ns          73
 106 #define MDOC_Nx          74
 107 #define MDOC_Ox          75
 108 #define MDOC_Pc          76
 109 #define MDOC_Pf          77
 110 #define MDOC_Po          78
 111 #define MDOC_Pq          79
 112 #define MDOC_Qc          80
 113 #define MDOC_Ql          81
 114 #define MDOC_Qo          82
 115 #define MDOC_Qq          83
 116 #define MDOC_Re          84
 117 #define MDOC_Rs          85
 118 #define MDOC_Sc          86
 119 #define MDOC_So          87
 120 #define MDOC_Sq          88
 121 #define MDOC_Sm          89
 122 #define MDOC_Sx          90
 123 #define MDOC_Sy          91
 124 #define MDOC_Tn          92
 125 #define MDOC_Ux          93
 126 #define MDOC_Xc          94
 127 #define MDOC_Xo          95
 128 #define MDOC_Fo          96
 129 #define MDOC_Fc          97
 130 #define MDOC_Oo          98
 131 #define MDOC_Oc          99
 132 #define MDOC_Bk          100
 133 #define MDOC_Ek          101
 134 #define MDOC_Bt          102
 135 #define MDOC_Hf          103
 136 #define MDOC_Fr          104
 137 #define MDOC_Ud          105
 138 #define MDOC_Lb          106
 139 #define MDOC_Lp          107
 140 #define MDOC_Lk          108
 141 #define MDOC_Mt          109
 142 #define MDOC_Brq         110
 143 #define MDOC_Bro         111
 144 #define MDOC_Brc         112
 145 #define MDOC__C          113
 146 #define MDOC_Es          114
 147 #define MDOC_En          115
 148 #define MDOC_Dx          116
 149 #define MDOC__Q          117
 150 #define MDOC_br          118
 151 #define MDOC_sp          119
 152 #define MDOC_MAX         120
 153
 154 /* What follows is a list of ALL possible macro arguments. */
 155
 156 #define MDOC_Split       0
 157 #define MDOC_Nosplit     1
 158 #define MDOC_Ragged      2
 159 #define MDOC_Unfilled    3
 160 #define MDOC_Literal     4
 161 #define MDOC_File        5
 162 #define MDOC_Offset      6
 163 #define MDOC_Bullet      7
 164 #define MDOC_Dash        8
 165 #define MDOC_Hyphen      9
 166 #define MDOC_Item        10
 167 #define MDOC_Enum        11
 168 #define MDOC_Tag         12
 169 #define MDOC_Diag        13
 170 #define MDOC_Hang        14
 171 #define MDOC_Ohang       15
 172 #define MDOC_Inset       16
 173 #define MDOC_Column      17
 174 #define MDOC_Width       18
 175 #define MDOC_Compact     19
 176 #define MDOC_Std         20
 177 #define MDOC_Filled      21
 178 #define MDOC_Words       22
 179 #define MDOC_Emphasis    23
 180 #define MDOC_Symbolic    24
 181 #define MDOC_Nested      25
 182 #define MDOC_ARG_MAX     26
 183
 184 /* Type of a syntax node. */
 185 enum    mdoc_type {
 186         MDOC_TEXT,
 187         MDOC_ELEM,
 188         MDOC_HEAD,
 189         MDOC_TAIL,
 190         MDOC_BODY,
 191         MDOC_BLOCK,
 192         MDOC_ROOT
 193 };
 194
 195 /* Section (named/unnamed) of `Sh'. */
 196 enum    mdoc_sec {
 197         SEC_NONE,               /* No section, yet. */
 198         SEC_NAME,
 199         SEC_LIBRARY,
 200         SEC_SYNOPSIS,
 201         SEC_DESCRIPTION,
 202         SEC_IMPLEMENTATION,
 203         SEC_RETURN_VALUES,
 204         SEC_ENVIRONMENT,
 205         SEC_FILES,
 206         SEC_EXAMPLES,
 207         SEC_DIAGNOSTICS,
 208         SEC_COMPATIBILITY,
 209         SEC_ERRORS,
 210         SEC_SEE_ALSO,
 211         SEC_STANDARDS,
 212         SEC_HISTORY,
 213         SEC_AUTHORS,
 214         SEC_CAVEATS,
 215         SEC_BUGS,
 216         SEC_CUSTOM              /* User-defined. */
 217 };
 218
 219 /* Information from prologue. */
 220 struct  mdoc_meta {
 221         int               msec;
 222         char             *vol;
 223         char             *arch;
 224         time_t            date;
 225         char             *title;
 226         char             *os;
 227         char             *name;
 228 };
 229
 230 /* An argument to a macro (multiple values = `It -column'). */
 231 struct  mdoc_argv {
 232         int               arg;
 233         int               line;
 234         int               pos;
 235         size_t            sz;
 236         char            **value;
 237 };
 238
 239 struct  mdoc_arg {
 240         size_t            argc;
 241         struct mdoc_argv *argv;
 242         unsigned int      refcnt;
 243 };
 244
 245 /* Node in AST. */
 246 struct  mdoc_node {
 247         struct mdoc_node *parent;
 248         struct mdoc_node *child;
 249         struct mdoc_node *next;
 250         struct mdoc_node *prev;
 251         int               nchild;
 252         int               line;
 253         int               pos;
 254         int               tok;
 255         int               flags;
 256 #define MDOC_VALID       (1 << 0)
 257 #define MDOC_ACTED       (1 << 1)
 258         enum mdoc_type    type;
 259         enum mdoc_sec     sec;
 260
 261         /* FIXME: union/struct this with #defines. */
 262         struct mdoc_arg  *args;         /* BLOCK/ELEM */
 263         struct mdoc_node *head;         /* BLOCK */
 264         struct mdoc_node *body;         /* BLOCK */
 265         struct mdoc_node *tail;         /* BLOCK */
 266         char             *string;       /* TEXT */
 267 };
 268
 269 #define MDOC_IGN_SCOPE   (1 << 0) /* Ignore scope violations. */
 270 #define MDOC_IGN_ESCAPE  (1 << 1) /* Ignore bad escape sequences. */
 271 #define MDOC_IGN_MACRO   (1 << 2) /* Ignore unknown macros. */
 272 #define MDOC_IGN_CHARS   (1 << 3) /* Ignore disallowed chars. */
 273
 274 /* Call-backs for parse messages. */
 275 /* FIXME: unify somehow with man_cb. */
 276 struct  mdoc_cb {
 277         int     (*mdoc_err)(void *, int, int, const char *);
 278         int     (*mdoc_warn)(void *, int, int, const char *);
 279 };
 280
 281 /* See mdoc.3 for documentation. */
 282
 283 extern  const char *const *mdoc_macronames;
 284 extern  const char *const *mdoc_argnames;
 285
 286 __BEGIN_DECLS
 287
 288 struct  mdoc;
 289
 290 /* See mdoc.3 for documentation. */
 291
 292 void              mdoc_free(struct mdoc *);
 293 struct  mdoc     *mdoc_alloc(void *, int, const struct mdoc_cb *);
 294 int               mdoc_reset(struct mdoc *);
 295 int               mdoc_parseln(struct mdoc *, int, char *buf);
 296 const struct mdoc_node *mdoc_node(const struct mdoc *);
 297 const struct mdoc_meta *mdoc_meta(const struct mdoc *);
 298 int               mdoc_endparse(struct mdoc *);
 299
 300 __END_DECLS
 301
 302 #endif /*!MDOC_H*/