usr.bin/mandoc/man_action.c

   1 /*      $Id: man_action.c,v 1.25 2010/01/01 17:14:27 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 #include <sys/utsname.h>
  18
  19 #include <assert.h>
  20 #include <stdlib.h>
  21 #include <string.h>
  22
  23 #include "libman.h"
  24 #include "libmandoc.h"
  25
  26 struct  actions {
  27         int     (*post)(struct man *);
  28 };
  29
  30 static  int       post_TH(struct man *);
  31 static  int       post_fi(struct man *);
  32 static  int       post_nf(struct man *);
  33
  34 const   struct actions man_actions[MAN_MAX] = {
  35         { NULL }, /* br */
  36         { post_TH }, /* TH */
  37         { NULL }, /* SH */
  38         { NULL }, /* SS */
  39         { NULL }, /* TP */
  40         { NULL }, /* LP */
  41         { NULL }, /* PP */
  42         { NULL }, /* P */
  43         { NULL }, /* IP */
  44         { NULL }, /* HP */
  45         { NULL }, /* SM */
  46         { NULL }, /* SB */
  47         { NULL }, /* BI */
  48         { NULL }, /* IB */
  49         { NULL }, /* BR */
  50         { NULL }, /* RB */
  51         { NULL }, /* R */
  52         { NULL }, /* B */
  53         { NULL }, /* I */
  54         { NULL }, /* IR */
  55         { NULL }, /* RI */
  56         { NULL }, /* na */
  57         { NULL }, /* i */
  58         { NULL }, /* sp */
  59         { post_nf }, /* nf */
  60         { post_fi }, /* fi */
  61         { NULL }, /* r */
  62         { NULL }, /* RE */
  63         { NULL }, /* RS */
  64         { NULL }, /* DT */
  65         { NULL }, /* UC */
  66         { NULL }, /* PD */
  67 };
  68
  69
  70 int
  71 man_action_post(struct man *m)
  72 {
  73
  74         if (MAN_ACTED & m->last->flags)
  75                 return(1);
  76         m->last->flags |= MAN_ACTED;
  77
  78         switch (m->last->type) {
  79         case (MAN_TEXT):
  80                 /* FALLTHROUGH */
  81         case (MAN_ROOT):
  82                 return(1);
  83         default:
  84                 break;
  85         }
  86
  87         if (NULL == man_actions[m->last->tok].post)
  88                 return(1);
  89         return((*man_actions[m->last->tok].post)(m));
  90 }
  91
  92
  93 static int
  94 post_fi(struct man *m)
  95 {
  96
  97         if ( ! (MAN_LITERAL & m->flags))
  98                 if ( ! man_nwarn(m, m->last, WNLITERAL))
  99                         return(0);
 100         m->flags &= ~MAN_LITERAL;
 101         return(1);
 102 }
 103
 104
 105 static int
 106 post_nf(struct man *m)
 107 {
 108
 109         if (MAN_LITERAL & m->flags)
 110                 if ( ! man_nwarn(m, m->last, WOLITERAL))
 111                         return(0);
 112         m->flags |= MAN_LITERAL;
 113         return(1);
 114 }
 115
 116
 117 static int
 118 post_TH(struct man *m)
 119 {
 120         struct man_node *n;
 121         char            *ep;
 122         long             lval;
 123
 124         if (m->meta.title)
 125                 free(m->meta.title);
 126         if (m->meta.vol)
 127                 free(m->meta.vol);
 128         if (m->meta.source)
 129                 free(m->meta.source);
 130
 131         m->meta.title = m->meta.vol = m->meta.source = NULL;
 132         m->meta.msec = 0;
 133         m->meta.date = 0;
 134
 135         /* ->TITLE<- MSEC DATE SOURCE VOL */
 136
 137         n = m->last->child;
 138         assert(n);
 139         m->meta.title = mandoc_strdup(n->string);
 140
 141         /* TITLE ->MSEC<- DATE SOURCE VOL */
 142
 143         n = n->next;
 144         assert(n);
 145
 146         lval = strtol(n->string, &ep, 10);
 147         if (n->string[0] != '\0' && *ep == '\0')
 148                 m->meta.msec = (int)lval;
 149         else if ( ! man_nwarn(m, n, WMSEC))
 150                 return(0);
 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
 159                 if (0 == m->meta.date) {
 160                         if ( ! man_nwarn(m, n, WDATE))
 161                                 return(0);
 162                         m->meta.date = time(NULL);
 163                 }
 164         } else
 165                 m->meta.date = time(NULL);
 166
 167         /* TITLE MSEC DATE ->SOURCE<- VOL */
 168
 169         if (n && (n = n->next))
 170                 m->meta.source = mandoc_strdup(n->string);
 171
 172         /* TITLE MSEC DATE SOURCE ->VOL<- */
 173
 174         if (n && (n = n->next))
 175                 m->meta.vol = mandoc_strdup(n->string);
 176
 177         /*
 178          * The end document shouldn't have the prologue macros as part
 179          * of the syntax tree (they encompass only meta-data).
 180          */
 181
 182         if (m->last->parent->child == m->last) {
 183                 m->last->parent->child = NULL;
 184                 n = m->last;
 185                 m->last = m->last->parent;
 186                 m->next = MAN_NEXT_CHILD;
 187         } else {
 188                 assert(m->last->prev);
 189                 m->last->prev->next = NULL;
 190                 n = m->last;
 191                 m->last = m->last->prev;
 192                 m->next = MAN_NEXT_SIBLING;
 193         }
 194
 195         man_node_freelist(n);
 196         return(1);
 197 }