1 /***********************************************************************
2 * *
3 * This software is part of the ast package *
4 * Copyright (c) 1985-2010 AT&T Intellectual Property *
5 * and is licensed under the *
6 * Common Public License, Version 1.0 *
7 * by AT&T Intellectual Property *
8 * *
9 * A copy of the License is available at *
10 * http://www.opensource.org/licenses/cpl1.0.txt *
11 * (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) *
12 * *
13 * Information and Software Systems Research *
14 * AT&T Research *
15 * Florham Park NJ *
16 * *
17 * Glenn Fowler <gsf@research.att.com> *
18 * David Korn <dgk@research.att.com> *
19 * Phong Vo <kpv@research.att.com> *
20 * *
21 ***********************************************************************/
22 #pragma prototyped
23 /*
24 * obsolete streval() interface to strexpr()
25 */
26
27 #include <ast.h>
28
29 typedef long (*Old_convert_t)(const char*, char**);
30
31 typedef long (*Convert_t)(const char*, char**, void*);
32
33 typedef struct
34 {
35 Old_convert_t convert;
36 } Handle_t;
37
38 static long
userconv(const char * s,char ** end,void * handle)39 userconv(const char* s, char** end, void* handle)
40 {
41 return((*((Handle_t*)handle)->convert)(s, end));
42 }
43
44 long
streval(const char * s,char ** end,Old_convert_t convert)45 streval(const char* s, char** end, Old_convert_t convert)
46 {
47 Handle_t handle;
48
49 return((handle.convert = convert) ? strexpr(s, end, userconv, &handle) : strexpr(s, end, (Convert_t)0, NiL));
50 }
51