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/***********************************************************************
* *
* This software is part of the ast package *
* Copyright (c) 1985-2010 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 <ast_getopt.h>
#undef _BLD_ast /* enable ast imports since we're user static */
#include <error.h>
#include <option.h>
#include <getopt.h>
#include <ctype.h>
static const char* lastoptstring;
static const struct option* lastlongopts;
static char* usage;
static Sfio_t* up;
static int lastoptind;
static int
golly(int argc, char* const* argv, const char* optstring, const struct option* longopts, int* longindex, int flags)
{
register char* s;
register const struct option* o;
register int c;
char* t;
if (!up || optstring != lastoptstring || longopts != lastlongopts)
{
if (!up && !(up = sfstropen()))
return -1;
sfprintf(up, "[-1p%d]", flags);
t = strdup(optstring);
for (o = longopts; o->name; o++)
{
if (o->flag || o->val <= 0 || o->val > UCHAR_MAX || !isalnum(o->val))
sfprintf(up, "\n[%d:%s]", UCHAR_MAX + 1 + (o - longopts), o->name);
else
{
sfprintf(up, "\n[%c:%s]", o->val, o->name);
if (s = strchr(t, o->val))
{
*s++ = ' ';
if (*s == ':')
{
*s++ = ' ';
if (*s == ':')
*s = ' ';
}
}
}
if (o->has_arg)
{
sfputc(up, ':');
if (o->has_arg == optional_argument)
sfputc(up, '?');
sfprintf(up, "[string]");
}
}
s = t;
while (c = *s++)
if (c != ' ')
{
sfprintf(up, "\n[%c]", c);
if (*s == ':')
{
sfputc(up, *s);
if (*++s == ':')
{
sfputc(up, '?');
s++;
}
sfputc(up, '[');
sfputc(up, ']');
}
}
sfputc(up, '\n');
if (!(usage = sfstruse(up)))
return -1;
lastoptstring = optstring;
lastlongopts = longopts;
}
opt_info.index = (optind > 1 || optind == lastoptind) ? optind : 0;
if (opt_info.index >= argc || !(c = optget((char**)argv, usage)))
{
sfstrclose(up);
up = 0;
c = -1;
}
else
{
if (c == ':' || c == '?')
{
if (opterr && (!optstring || *optstring != ':'))
{
if (!error_info.id)
error_info.id = argv[0];
errormsg(NiL, c == '?' ? (ERROR_USAGE|4) : 2, "%s", opt_info.arg);
}
optopt = opt_info.option[1];
c = '?';
}
optarg = opt_info.arg;
if (c < 0)
{
o = longopts - c - UCHAR_MAX - 1;
if (o->flag)
{
*o->flag = o->val;
c = 0;
}
else
c = o->val;
}
}
lastoptind = optind = opt_info.index;
return c;
}
extern int
getopt_long(int argc, char* const* argv, const char* optstring, const struct option* longopts, int* longindex)
{
return golly(argc, argv, optstring, longopts, longindex, 2);
}
extern int
getopt_long_only(int argc, char* const* argv, const char* optstring, const struct option* longopts, int* longindex)
{
return golly(argc, argv, optstring, longopts, longindex, 1);
}
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