/*
* gets the next option. returns the index on data->table if the option
*
* Modifies internal counters (data->pt and data->i).
*/
static int
getNextOption(struct global *data)
{ int nRet;
assert( data );
data->arg = NULL;
if( data->pt )
nRet = do_short_opt( data );
else if( !current_arg(data) )
nRet = RET_END;
else if( force_end( current_arg(data) ))
{ data->i++; /* the user don't want the "--" stuff */
nRet = RET_END;
}
else if( !is_option( current_arg(data) ))
nRet = RET_END;
else if( is_long_opt( current_arg(data) ))
nRet = do_long_option(data);
else
{ data->pt = current_arg(data) + 1;
nRet = do_short_opt( data );
}
return nRet;
}
/*
* handle the long options.
* returs <0 on error.
* TODO: stinks
*/
static int
do_long_option ( struct global *data )
{ char *q,*arg ;
int n;
assert( data );
arg = current_arg(data)+2;
data->i++;
if( (q=strchr( arg , '=' )) ) /* separate --argument=something */
{ q++;
*(q-1)=0;
if(!*q)
q=NULL;
}
n = findLongOption ( data->table , arg);
if( n<0 )
{ n = RET_UNKNOW;
report(data->flags,_("unknow long option `%s'"),arg);
}
else if( has_one_arg( data->table[n] ) )
{ if( q ) /* inline option */
data->arg = q;
else if( !current_arg(data) || force_end( current_arg(data) ) ||
( !is_number(current_arg(data)) && is_option(current_arg(data)) ) )
{ n = RET_ENOUGH;
report(data->flags,_("not enough parameters for `%s'"),
arg);
}
else
{ data->arg = current_arg(data);
data->i++;
}
}
else if( data->table[n].flags!=0)
assert( 0 );
return n;
}
/*
* gets aditionals parameters of an option if any.
* <0 error. else the position in the table of the command
*/
static int
do_short_opt( struct global *data )
{ int c;
int n;
assert( data );
c = *(data->pt++);
if( !*data->pt ) /* we finish this arg. go to the next */
{ data->pt = NULL;
data->i++;
}
n = findShortOption( data->table,c);
if( n < 0 )
{ n = RET_UNKNOW;
report(data->flags,_("unknow option '%c'"),c);
}
else if( has_one_arg( data->table[n] ) )
{ if( data->pt ) /* inlined argument */
{ data->arg = data->pt;
data->pt = NULL;
data->i++;
}
else if ( !current_arg(data) || force_end(current_arg(data)) ||
( !is_number(current_arg(data)) && is_option(current_arg(data)) ) )
{ n = RET_ENOUGH;
report(data->flags,_("not enough parameters for `%c'"),
c);
}
else
{ data->arg = current_arg(data);
data->i++;
}
}
return n;
}
void check_end(int current_in_progress) {
if (current_in_progress == 0) {
force_end();
}
}