fmtident.c revision 7c2fbfb345896881c631598ee3852ce9ce33fb07
/***********************************************************************
* *
* This software is part of the ast package *
* Copyright (c) 1985-2008 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
#include <ast.h>
#include <ctype.h>
#define IDENT 01
#define USAGE 02
/*
* format what(1) and/or ident(1) string a
*/
char*
fmtident(const char* a)
{
register char* s = (char*)a;
register char* t;
char* buf;
int i;
i = 0;
for (;;)
{
while (isspace(*s))
s++;
if (s[0] == '[')
{
while (*++s && *s != '\n');
i |= USAGE;
}
else if (s[0] == '@' && s[1] == '(' && s[2] == '#' && s[3] == ')')
s += 4;
else if (s[0] == '$' && s[1] == 'I' && s[2] == 'd' && s[3] == ':' && isspace(s[4]))
{
s += 5;
i |= IDENT;
}
else
break;
}
if (i)
{
i &= IDENT;
for (t = s; isprint(*t) && *t != '\n'; t++)
if (i && t[0] == ' ' && t[1] == '$')
break;
while (t > s && isspace(t[-1]))
t--;
i = t - s;
buf = fmtbuf(i + 1);
memcpy(buf, s, i);
s = buf;
s[i] = 0;
}
return s;
}