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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
/* interface to command line option service routines
*/
#ifndef GLK_TADS_TADS2_COMMAND_LINE
#define GLK_TADS_TADS2_COMMAND_LINE
#include "glk/tads/tads2/error_handling.h"
#include "glk/tads/os_frob_tads.h"
namespace Glk {
namespace TADS {
namespace TADS2 {
/*
* Get argument to an option. Option can be rammed up against option
* letter(s) with no space, or can be separated by a space. argp is a
* pointer to the pointer to the current position in the argv[] array;
* ip is a pointer to the index in the argv[] array. Both *argpp and
* *ip are incremented if the next word must be read. argc is the total
* number of arguments. ofs gives the number of characters (NOT
* including the '-') in this option flag; most options will have ofs==1
* since they are of the form '-x'. usagefn is a function to call if
* the parsing fails; it is not expected to return, but should signal an
* error instead.
*/
char *cmdarg(errcxdef *ec, char ***argpp, int *ip, int argc,
int ofs, void (*usagefn)(errcxdef*));
/*
* Read a toggle argument. prv is the previous value (prior to this
* switch) of the parameter (TRUE or FALSE). argp is a pointer to the
* current argument word. ofs is the length of this option flag, NOT
* including the '-'; most options have ofs==1 since they are of the
* form '-x'. If the option is followed by '+', the value returned is
* TRUE; if it's followed by '-', the value is FALSE; if followed by
* nothing, the option is the logical inverse of the previous value. If
* it's followed by any other character, we call the usage callback,
* which is not expected to return, but should signal an error.
*/
int cmdtog(struct errcxdef *ec, int prv, char *argp, int ofs,
void (*usagefn)(errcxdef*));
} // End of namespace TADS2
} // End of namespace TADS
} // End of namespace Glk
#endif
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