man_action.c

   1 /*      $Id: man_action.c,v 1.34 2010/05/15 22:44:04 kristaps Exp $ */
   2 /*
   3  * Copyright (c) 2008, 2009 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 #ifdef HAVE_CONFIG_H
  18 #include "config.h"
  19 #endif
  20
  21 #include <assert.h>
  22 #include <stdlib.h>
  23 #include <string.h>
  24
  25 #include "libman.h"
  26 #include "libmandoc.h"
  27
  28 struct  actions {
  29         int     (*post)(struct man *);
  30 };
  31
  32 static  int       post_TH(struct man *);
  33 static  int       post_fi(struct man *);
  34 static  int       post_nf(struct man *);
  35
  36 const   struct actions man_actions[MAN_MAX] = {
  37         { NULL }, /* br */
  38         { post_TH }, /* TH */
  39         { NULL }, /* SH */
  40         { NULL }, /* SS */
  41         { NULL }, /* TP */
  42         { NULL }, /* LP */
  43         { NULL }, /* PP */
  44         { NULL }, /* P */
  45         { NULL }, /* IP */
  46         { NULL }, /* HP */
  47         { NULL }, /* SM */
  48         { NULL }, /* SB */
  49         { NULL }, /* BI */
  50         { NULL }, /* IB */
  51         { NULL }, /* BR */
  52         { NULL }, /* RB */
  53         { NULL }, /* R */
  54         { NULL }, /* B */
  55         { NULL }, /* I */
  56         { NULL }, /* IR */
  57         { NULL }, /* RI */
  58         { NULL }, /* na */
  59         { NULL }, /* i */
  60         { NULL }, /* sp */
  61         { post_nf }, /* nf */
  62         { post_fi }, /* fi */
  63         { NULL }, /* r */
  64         { NULL }, /* RE */
  65         { NULL }, /* RS */
  66         { NULL }, /* DT */
  67         { NULL }, /* UC */
  68         { NULL }, /* PD */
  69         { NULL }, /* Sp */
  70         { post_nf }, /* Vb */
  71         { post_fi }, /* Ve */
  72 };
  73
  74
  75 int
  76 man_action_post(struct man *m)
  77 {
  78
  79         if (MAN_ACTED & m->last->flags)
  80                 return(1);
  81         m->last->flags |= MAN_ACTED;
  82
  83         switch (m->last->type) {
  84         case (MAN_TEXT):
  85                 /* FALLTHROUGH */
  86         case (MAN_ROOT):
  87                 return(1);
  88         default:
  89                 break;
  90         }
  91
  92         if (NULL == man_actions[m->last->tok].post)
  93                 return(1);
  94         return((*man_actions[m->last->tok].post)(m));
  95 }
  96
  97
  98 static int
  99 post_fi(struct man *m)
 100 {
 101
 102         if ( ! (MAN_LITERAL & m->flags))
 103                 if ( ! man_nwarn(m, m->last, WNLITERAL))
 104                         return(0);
 105         m->flags &= ~MAN_LITERAL;
 106         return(1);
 107 }
 108
 109
 110 static int
 111 post_nf(struct man *m)
 112 {
 113
 114         if (MAN_LITERAL & m->flags)
 115                 if ( ! man_nwarn(m, m->last, WOLITERAL))
 116                         return(0);
 117         m->flags |= MAN_LITERAL;
 118         return(1);
 119 }
 120
 121
 122 static int
 123 post_TH(struct man *m)
 124 {
 125         struct man_node *n;
 126
 127         if (m->meta.title)
 128                 free(m->meta.title);
 129         if (m->meta.vol)
 130                 free(m->meta.vol);
 131         if (m->meta.source)
 132                 free(m->meta.source);
 133         if (m->meta.msec)
 134                 free(m->meta.msec);
 135
 136         m->meta.title = m->meta.vol =
 137                 m->meta.msec = m->meta.source = NULL;
 138         m->meta.date = 0;
 139
 140         /* ->TITLE<- MSEC DATE SOURCE VOL */
 141
 142         n = m->last->child;
 143         assert(n);
 144         m->meta.title = mandoc_strdup(n->string);
 145
 146         /* TITLE ->MSEC<- DATE SOURCE VOL */
 147
 148         n = n->next;
 149         assert(n);
 150         m->meta.msec = mandoc_strdup(n->string);
 151
 152         /* TITLE MSEC ->DATE<- SOURCE VOL */
 153
 154         n = n->next;
 155         if (n) {
 156                 m->meta.date = mandoc_a2time
 157                         (MTIME_ISO_8601, n->string);
 158                 if (0 == m->meta.date) {
 159                         if ( ! man_nwarn(m, n, WDATE))
 160                                 return(0);
 161                         m->meta.date = time(NULL);
 162                 }
 163         } else
 164                 m->meta.date = time(NULL);
 165
 166         /* TITLE MSEC DATE ->SOURCE<- VOL */
 167
 168         if (n && (n = n->next))
 169                 m->meta.source = mandoc_strdup(n->string);
 170
 171         /* TITLE MSEC DATE SOURCE ->VOL<- */
 172
 173         if (n && (n = n->next))
 174                 m->meta.vol = mandoc_strdup(n->string);
 175
 176         /*
 177          * Remove the `TH' node after we've processed it for our
 178          * meta-data.
 179          */
 180         man_node_delete(m, m->last);
 181         return(1);
 182 }