streval.c revision 34f9b3eef6fdadbda0a846aa4d68691ac40eace5
/***********************************************************************
* *
* This software is part of the ast package *
* Copyright (c) 1985-2009 AT&T Intellectual Property *
* and is licensed under the *
* Common Public License, Version 1.0 *
* by AT&T Intellectual Property *
* *
* A copy of the License is available at *
* http://www.opensource.org/licenses/cpl1.0.txt *
* (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) *
* *
* Information and Software Systems Research *
* AT&T Research *
* Florham Park NJ *
* *
* Glenn Fowler <gsf@research.att.com> *
* David Korn <dgk@research.att.com> *
* Phong Vo <kpv@research.att.com> *
* *
***********************************************************************/
#pragma prototyped
/*
* obsolete streval() interface to strexpr()
*/
#include <ast.h>
typedef long (*Old_convert_t)(const char*, char**);
typedef long (*Convert_t)(const char*, char**, void*);
typedef struct
{
Old_convert_t convert;
} Handle_t;
static long
userconv(const char* s, char** end, void* handle)
{
return((*((Handle_t*)handle)->convert)(s, end));
}
long
streval(const char* s, char** end, Old_convert_t convert)
{
Handle_t handle;
return((handle.convert = convert) ? strexpr(s, end, userconv, &handle) : strexpr(s, end, (Convert_t)0, NiL));
}