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/* ISC license. */
#undef SUBGETOPT_SHORT
#include <skalibs/sgetopt.h>
int subgetopt_r (int argc, char const *const *argv, char const *opts, subgetopt_t *o)
{
o->arg = 0 ;
if ((o->ind >= argc) || !argv[o->ind]) return -1 ;
if (o->pos && !argv[o->ind][o->pos])
{
o->ind++ ;
o->pos = 0 ;
if ((o->ind >= argc) || !argv[o->ind]) return -1 ;
}
if (!o->pos)
{
if (argv[o->ind][0] != '-') return -1 ;
else
{
char c ;
o->pos++ ;
c = argv[o->ind][1] ;
if (c == '-') o->ind++ ;
if (!c || (c == '-'))
{
o->pos = 0 ;
return -1 ;
}
}
}
{
char c = argv[o->ind][o->pos++] ;
char const *s = opts ;
char retnoarg = (*s == ':') ? (s++, ':') : '?' ;
while (*s)
{
if (c == *s)
{
if (s[1] == ':')
{
o->arg = argv[o->ind++] + o->pos ;
o->pos = 0 ;
if (!*o->arg)
{
o->arg = argv[o->ind] ;
if ((o->ind >= argc) || !o->arg)
{
o->problem = c ;
return retnoarg ;
}
o->ind++ ;
}
}
return c ;
}
if (*++s == ':') s++ ;
}
o->problem = c ;
}
return '?' ;
}
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