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1 /* $Id: man_action.c,v 1.5 2009/03/26 14:38:11 kristaps Exp $ */
2 /*
3 * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@openbsd.org>
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
7 * above copyright notice and this permission notice appear in all
8 * copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
11 * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
12 * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
13 * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
14 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
15 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
16 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
17 * PERFORMANCE OF THIS SOFTWARE.
18 */
19 #include <sys/utsname.h>
20
21 #include <assert.h>
22 #include <err.h>
23 #include <errno.h>
24 #include <stdio.h>
25 #include <stdlib.h>
26 #include <string.h>
27
28 #include "libman.h"
29
30 #ifdef __linux__
31 extern char *strptime(const char *, const char *, struct tm *);
32 #endif
33
34 struct actions {
35 int (*post)(struct man *);
36 };
37
38
39 static int post_TH(struct man *);
40 static time_t man_atotime(const char *);
41
42 const struct actions man_actions[MAN_MAX] = {
43 { NULL }, /* __ */
44 { post_TH }, /* TH */
45 { NULL }, /* SH */
46 { NULL }, /* SS */
47 { NULL }, /* TP */
48 { NULL }, /* LP */
49 { NULL }, /* PP */
50 { NULL }, /* P */
51 { NULL }, /* IP */
52 { NULL }, /* HP */
53 { NULL }, /* SM */
54 { NULL }, /* SB */
55 { NULL }, /* BI */
56 { NULL }, /* IB */
57 { NULL }, /* BR */
58 { NULL }, /* RB */
59 { NULL }, /* R */
60 { NULL }, /* B */
61 { NULL }, /* I */
62 { NULL }, /* IR */
63 { NULL }, /* RI */
64 };
65
66
67 int
68 man_action_post(struct man *m)
69 {
70
71 if (MAN_ACTED & m->last->flags)
72 return(1);
73 m->last->flags |= MAN_ACTED;
74
75 switch (m->last->type) {
76 case (MAN_TEXT):
77 break;
78 case (MAN_ROOT):
79 break;
80 default:
81 if (NULL == man_actions[m->last->tok].post)
82 break;
83 return((*man_actions[m->last->tok].post)(m));
84 }
85 return(1);
86 }
87
88
89 static int
90 post_TH(struct man *m)
91 {
92 struct man_node *n;
93 char *ep;
94 long lval;
95
96 if (m->meta.title)
97 free(m->meta.title);
98 if (m->meta.vol)
99 free(m->meta.vol);
100 if (m->meta.source)
101 free(m->meta.source);
102
103 m->meta.title = m->meta.vol = m->meta.source = NULL;
104 m->meta.msec = 0;
105 m->meta.date = 0;
106
107 /* ->TITLE<- MSEC DATE SOURCE VOL */
108
109 n = m->last->child;
110 assert(n);
111
112 if (NULL == (m->meta.title = strdup(n->string)))
113 return(man_verr(m, n->line, n->pos, "malloc"));
114
115 /* TITLE ->MSEC<- DATE SOURCE VOL */
116
117 n = n->next;
118 assert(n);
119
120 errno = 0;
121 lval = strtol(n->string, &ep, 10);
122 if (n->string[0] != '\0' && *ep == '\0')
123 m->meta.msec = (int)lval;
124 else if ( ! man_vwarn(m, n->line, n->pos, "invalid section"))
125 return(0);
126
127 /* TITLE MSEC ->DATE<- SOURCE VOL */
128
129 if (NULL == (n = n->next))
130 m->meta.date = time(NULL);
131 else if (0 == (m->meta.date = man_atotime(n->string))) {
132 if ( ! man_vwarn(m, n->line, n->pos, "invalid date"))
133 return(0);
134 m->meta.date = time(NULL);
135 }
136
137 /* TITLE MSEC DATE ->SOURCE<- VOL */
138
139 if (n && (n = n->next))
140 if (NULL == (m->meta.source = strdup(n->string)))
141 return(man_verr(m, n->line, n->pos, "malloc"));
142
143 /* TITLE MSEC DATE SOURCE ->VOL<- */
144
145 if (n && (n = n->next))
146 if (NULL == (m->meta.vol = strdup(n->string)))
147 return(man_verr(m, n->line, n->pos, "malloc"));
148
149 /*
150 * The end document shouldn't have the prologue macros as part
151 * of the syntax tree (they encompass only meta-data).
152 */
153
154 if (m->last->parent->child == m->last) {
155 assert(MAN_ROOT == m->last->parent->type);
156 m->last->parent->child = NULL;
157 n = m->last;
158 m->last = m->last->parent;
159 m->next = MAN_NEXT_CHILD;
160 assert(m->last == m->first);
161 } else {
162 assert(m->last->prev);
163 m->last->prev->next = NULL;
164 n = m->last;
165 m->last = m->last->prev;
166 m->next = MAN_NEXT_SIBLING;
167 }
168
169 man_node_freelist(n);
170 return(1);
171 }
172
173
174 static time_t
175 man_atotime(const char *p)
176 {
177 struct tm tm;
178 char *pp;
179
180 (void)memset(&tm, 0, sizeof(struct tm));
181
182 if ((pp = strptime(p, "%b %d %Y", &tm)) && 0 == *pp)
183 return(mktime(&tm));
184 if ((pp = strptime(p, "%d %b %Y", &tm)) && 0 == *pp)
185 return(mktime(&tm));
186 if ((pp = strptime(p, "%b %d, %Y", &tm)) && 0 == *pp)
187 return(mktime(&tm));
188 if ((pp = strptime(p, "%b %Y", &tm)) && 0 == *pp)
189 return(mktime(&tm));
190
191 return(0);
192 }