man_action.c

   1 /*      $Id: man_action.c,v 1.27 2010/03/23 11:30:48 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 #ifdef HAVE_CONFIG_H
  18 #include "config.h"
  19 #endif
  20
  21 #include <sys/utsname.h>
  22
  23 #include <assert.h>
  24 #include <stdlib.h>
  25 #include <string.h>
  26
  27 #include "libman.h"
  28 #include "libmandoc.h"
  29
  30 struct  actions {
  31         int     (*post)(struct man *);
  32 };
  33
  34 static  int       post_TH(struct man *);
  35 static  int       post_fi(struct man *);
  36 static  int       post_nf(struct man *);
  37
  38 const   struct actions man_actions[MAN_MAX] = {
  39         { NULL }, /* br */
  40         { post_TH }, /* TH */
  41         { NULL }, /* SH */
  42         { NULL }, /* SS */
  43         { NULL }, /* TP */
  44         { NULL }, /* LP */
  45         { NULL }, /* PP */
  46         { NULL }, /* P */
  47         { NULL }, /* IP */
  48         { NULL }, /* HP */
  49         { NULL }, /* SM */
  50         { NULL }, /* SB */
  51         { NULL }, /* BI */
  52         { NULL }, /* IB */
  53         { NULL }, /* BR */
  54         { NULL }, /* RB */
  55         { NULL }, /* R */
  56         { NULL }, /* B */
  57         { NULL }, /* I */
  58         { NULL }, /* IR */
  59         { NULL }, /* RI */
  60         { NULL }, /* na */
  61         { NULL }, /* i */
  62         { NULL }, /* sp */
  63         { post_nf }, /* nf */
  64         { post_fi }, /* fi */
  65         { NULL }, /* r */
  66         { NULL }, /* RE */
  67         { NULL }, /* RS */
  68         { NULL }, /* DT */
  69         { NULL }, /* UC */
  70         { NULL }, /* PD */
  71         { NULL }, /* Sp */
  72         { post_nf }, /* Vb */
  73         { post_fi }, /* Ve */
  74 };
  75
  76
  77 int
  78 man_action_post(struct man *m)
  79 {
  80
  81         if (MAN_ACTED & m->last->flags)
  82                 return(1);
  83         m->last->flags |= MAN_ACTED;
  84
  85         switch (m->last->type) {
  86         case (MAN_TEXT):
  87                 /* FALLTHROUGH */
  88         case (MAN_ROOT):
  89                 return(1);
  90         default:
  91                 break;
  92         }
  93
  94         if (NULL == man_actions[m->last->tok].post)
  95                 return(1);
  96         return((*man_actions[m->last->tok].post)(m));
  97 }
  98
  99
 100 static int
 101 post_fi(struct man *m)
 102 {
 103
 104         if ( ! (MAN_LITERAL & m->flags))
 105                 if ( ! man_nwarn(m, m->last, WNLITERAL))
 106                         return(0);
 107         m->flags &= ~MAN_LITERAL;
 108         return(1);
 109 }
 110
 111
 112 static int
 113 post_nf(struct man *m)
 114 {
 115
 116         if (MAN_LITERAL & m->flags)
 117                 if ( ! man_nwarn(m, m->last, WOLITERAL))
 118                         return(0);
 119         m->flags |= MAN_LITERAL;
 120         return(1);
 121 }
 122
 123
 124 static int
 125 post_TH(struct man *m)
 126 {
 127         struct man_node *n;
 128         char            *ep;
 129         long             lval;
 130
 131         if (m->meta.title)
 132                 free(m->meta.title);
 133         if (m->meta.vol)
 134                 free(m->meta.vol);
 135         if (m->meta.source)
 136                 free(m->meta.source);
 137
 138         m->meta.title = m->meta.vol = m->meta.source = NULL;
 139         m->meta.msec = 0;
 140         m->meta.date = 0;
 141
 142         /* ->TITLE<- MSEC DATE SOURCE VOL */
 143
 144         n = m->last->child;
 145         assert(n);
 146         m->meta.title = mandoc_strdup(n->string);
 147
 148         /* TITLE ->MSEC<- DATE SOURCE VOL */
 149
 150         n = n->next;
 151         assert(n);
 152
 153         lval = strtol(n->string, &ep, 10);
 154         if (n->string[0] != '\0' && *ep == '\0')
 155                 m->meta.msec = (int)lval;
 156         else if ( ! man_nwarn(m, n, WMSEC))
 157                 return(0);
 158
 159         /* TITLE MSEC ->DATE<- SOURCE VOL */
 160
 161         n = n->next;
 162         if (n) {
 163                 m->meta.date = mandoc_a2time
 164                         (MTIME_ISO_8601, n->string);
 165
 166                 if (0 == m->meta.date) {
 167                         if ( ! man_nwarn(m, n, WDATE))
 168                                 return(0);
 169                         m->meta.date = time(NULL);
 170                 }
 171         } else
 172                 m->meta.date = time(NULL);
 173
 174         /* TITLE MSEC DATE ->SOURCE<- VOL */
 175
 176         if (n && (n = n->next))
 177                 m->meta.source = mandoc_strdup(n->string);
 178
 179         /* TITLE MSEC DATE SOURCE ->VOL<- */
 180
 181         if (n && (n = n->next))
 182                 m->meta.vol = mandoc_strdup(n->string);
 183
 184         n = m->last;
 185         man_node_unlink(m, n);
 186         man_node_freelist(n);
 187         return(1);
 188 }