3 * String I/O for group elements
5 * (c) 2004 Straylight/Edgeware
8 /*----- Licensing notice --------------------------------------------------*
10 * This file is part of Catacomb.
12 * Catacomb is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU Library General Public License as
14 * published by the Free Software Foundation; either version 2 of the
15 * License, or (at your option) any later version.
17 * Catacomb is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU Library General Public License for more details.
22 * You should have received a copy of the GNU Library General Public
23 * License along with Catacomb; if not, write to the Free
24 * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
28 /*----- Header files ------------------------------------------------------*/
32 /*----- Main code ---------------------------------------------------------*/
34 /* --- @group_readstring@ --- *
36 * Arguments: @group *g@ = an abstract group
37 * @ge *d@ = destination group element
38 * @const char *p@ = where the string is
39 * @char **end@ = where to put the end pointer
41 * Returns: Zero on success, nonzero on failure.
43 * Use: Parses a group element from a string.
46 int group_readstring(group
*g
, ge
*d
, const char *p
, char **end
)
50 ms
.buf
= (/*unconst*/ char *)p
;
51 ms
.lim
= (/*unconst*/ char *)p
+ strlen(p
);
52 if (G_READ(g
, d
, &mptext_stringops
, &ms
))
54 if (end
) *end
= ms
.buf
;
58 /* --- @group_writestring@ --- *
60 * Arguments: @group *g@ = an abstract group
61 * @ge *x@ = a group element
62 * @char *p@ = where the string should go
63 * @size_t sz@ = how long the buffer is
65 * Returns: Zero on success, nonzero on failure.
67 * Use: Writes a group element to a string buffer.
70 int group_writestring(group
*g
, ge
*x
, char *p
, size_t sz
)
76 if (G_WRITE(g
, x
, &mptext_stringops
, &ms
))
82 /*----- That's all, folks -------------------------------------------------*/