Annotation of src/usr.bin/mandoc/eqn.c, Revision 1.3
1.3 ! schwarze 1: /* $Id: eqn.c,v 1.2 2011/04/21 22:59:54 schwarze Exp $ */
1.1 schwarze 2: /*
3: * Copyright (c) 2011 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 "mandoc.h"
26: #include "libmandoc.h"
27: #include "libroff.h"
28:
29: /* ARGSUSED */
30: enum rofferr
31: eqn_read(struct eqn_node **epp, int ln, const char *p, int offs)
32: {
33: size_t sz;
34: struct eqn_node *ep;
35:
36: if (0 == strcmp(p, ".EN")) {
37: *epp = NULL;
38: return(ROFF_EQN);
39: }
40:
41: ep = *epp;
42:
43: sz = strlen(&p[offs]);
44: ep->eqn.data = mandoc_realloc(ep->eqn.data, ep->eqn.sz + sz + 1);
45: if (0 == ep->eqn.sz)
46: *ep->eqn.data = '\0';
47:
48: ep->eqn.sz += sz;
49: strlcat(ep->eqn.data, &p[offs], ep->eqn.sz + 1);
50: return(ROFF_IGN);
51: }
52:
53: struct eqn_node *
54: eqn_alloc(int pos, int line)
55: {
56: struct eqn_node *p;
57:
58: p = mandoc_calloc(1, sizeof(struct eqn_node));
59: p->eqn.line = line;
60: p->eqn.pos = pos;
61:
62: return(p);
63: }
64:
1.2 schwarze 65: /* ARGSUSED */
1.1 schwarze 66: void
67: eqn_end(struct eqn_node *e)
68: {
69:
70: /* Nothing to do. */
71: }
72:
73: void
74: eqn_free(struct eqn_node *p)
75: {
76:
77: free(p->eqn.data);
78: free(p);
79: }