libman.h

   1 /*      $Id: libman.h,v 1.31 2010/04/08 07:53:01 kristaps Exp $ */
   2 /*
   3  * Copyright (c) 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 LIBMAN_H
  18 #define LIBMAN_H
  19
  20 #include "man.h"
  21
  22 enum    man_next {
  23         MAN_NEXT_SIBLING = 0,
  24         MAN_NEXT_CHILD
  25 };
  26
  27 struct  man {
  28         void            *data;
  29         struct man_cb    cb;
  30         int              pflags; /* parse flags (see man.h) */
  31         int              svflags; /* flags saved during roff blocks */
  32         int              flags; /* parse flags */
  33 #define MAN_HALT        (1 << 0) /* badness happened: die */
  34 #define MAN_ELINE       (1 << 1) /* Next-line element scope. */
  35 #define MAN_BLINE       (1 << 2) /* Next-line block scope. */
  36 #define MAN_ILINE       (1 << 3) /* Ignored in next-line scope. */
  37 #define MAN_LITERAL     (1 << 4) /* Literal input. */
  38 #define MAN_BPLINE      (1 << 5)
  39         enum man_next    next;
  40         enum man_next    svnext;
  41         struct man_node *last;
  42         struct man_node *first;
  43         struct man_meta  meta;
  44 };
  45
  46 enum    merr {
  47         WNPRINT = 0,
  48         WMSEC,
  49         WDATE,
  50         WLNSCOPE,
  51         WLNSCOPE2,
  52         WTSPACE,
  53         WTQUOTE,
  54         WNODATA,
  55         WNOTITLE,
  56         WESCAPE,
  57         WNUMFMT,
  58         WHEADARGS,
  59         WBODYARGS,
  60         WNHEADARGS,
  61         WMACROFORM,
  62         WEXITSCOPE,
  63         WNOSCOPE,
  64         WOLITERAL,
  65         WNLITERAL,
  66         WROFFNEST,
  67         WROFFSCOPE,
  68         WTITLECASE,
  69         WBADCOMMENT,
  70         WERRMAX
  71 };
  72
  73 #define MACRO_PROT_ARGS   struct man *m, enum mant tok, int line, \
  74                           int ppos, int *pos, char *buf
  75
  76 struct  man_macro {
  77         int             (*fp)(MACRO_PROT_ARGS);
  78         int               flags;
  79 #define MAN_SCOPED       (1 << 0)
  80 #define MAN_EXPLICIT     (1 << 1)       /* See blk_imp(). */
  81 #define MAN_FSCOPED      (1 << 2)       /* See blk_imp(). */
  82 #define MAN_NSCOPED      (1 << 3)       /* See in_line_eoln(). */
  83 #define MAN_NOCLOSE      (1 << 4)       /* See blk_exp(). */
  84 };
  85
  86 extern  const struct man_macro *const man_macros;
  87
  88 __BEGIN_DECLS
  89
  90 #define           man_perr(m, l, p, t) \
  91                   man_err((m), (l), (p), 1, (t))
  92 #define           man_pwarn(m, l, p, t) \
  93                   man_err((m), (l), (p), 0, (t))
  94 #define           man_nerr(m, n, t) \
  95                   man_err((m), (n)->line, (n)->pos, 1, (t))
  96 #define           man_nwarn(m, n, t) \
  97                   man_err((m), (n)->line, (n)->pos, 0, (t))
  98
  99 int               man_word_alloc(struct man *, int, int, const char *);
 100 int               man_block_alloc(struct man *, int, int, enum mant);
 101 int               man_head_alloc(struct man *, int, int, enum mant);
 102 int               man_body_alloc(struct man *, int, int, enum mant);
 103 int               man_elem_alloc(struct man *, int, int, enum mant);
 104 void              man_node_delete(struct man *, struct man_node *);
 105 void              man_hash_init(void);
 106 enum    mant      man_hash_find(const char *);
 107 int               man_macroend(struct man *);
 108 int               man_args(struct man *, int, int *, char *, char **);
 109 #define ARGS_ERROR      (-1)
 110 #define ARGS_EOLN       (0)
 111 #define ARGS_WORD       (1)
 112 #define ARGS_QWORD      (1)
 113 int               man_err(struct man *, int, int, int, enum merr);
 114 int               man_vwarn(struct man *, int, int, const char *, ...);
 115 int               man_verr(struct man *, int, int, const char *, ...);
 116 int               man_valid_post(struct man *);
 117 int               man_valid_pre(struct man *, const struct man_node *);
 118 int               man_action_post(struct man *);
 119 int               man_action_pre(struct man *, struct man_node *);
 120 int               man_unscope(struct man *,
 121                         const struct man_node *, enum merr);
 122
 123 __END_DECLS
 124
 125 #endif /*!LIBMAN_H*/