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/***********************************************************************
* *
* This software is part of the ast package *
* Copyright (c) 1985-2011 AT&T Intellectual Property *
* and is licensed under the *
* Eclipse Public License, Version 1.0 *
* by AT&T Intellectual Property *
* *
* A copy of the License is available at *
* http://www.eclipse.org/org/documents/epl-v10.html *
* (with md5 checksum b35adb5213ca9657e911e9befb180842) *
* *
* 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
/*
* Glenn Fowler
* AT&T Research
*
* convert \X character constants in s in place
* the length of the converted s is returned (may have embedded \0's)
* wide chars absent locale guidance default to UTF-8
* strexp() FMT_EXP_* flags passed to chrexp() for selective conversion
*/
#include <ast.h>
int
strexp(register char* s, int flags)
{
register char* t;
register unsigned int c;
char* b;
char* e;
int w;
b = t = s;
while (c = *s++)
{
if (c == '\\')
{
c = chrexp(s - 1, &e, &w, flags);
s = e;
if (w)
{
t += mbwide() ? mbconv(t, c) : wc2utf8(t, c);
continue;
}
}
*t++ = c;
}
*t = 0;
return t - b;
}
int
stresc(register char* s)
{
return strexp(s, FMT_EXP_CHAR|FMT_EXP_LINE|FMT_EXP_WIDE);
}
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