An implementation of Unix dc and POSIX bc with GNU and BSD extensions
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
 

79 lines
2.5 KiB

/*
* *****************************************************************************
*
* Copyright (c) 2018-2020 Gavin D. Howard and contributors.
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* *****************************************************************************
*
* Adapted from https://github.com/skeeto/optparse
*
* *****************************************************************************
*
* Definitions for getopt_long() replacement.
*
*/
#ifndef BC_OPT_H
#define BC_OPT_H
#include <stdbool.h>
typedef struct BcOpt {
char **argv;
size_t optind;
int optopt;
int subopt;
char *optarg;
} BcOpt;
typedef enum BcOptType {
BC_OPT_NONE,
BC_OPT_REQUIRED,
BC_OPT_BC_ONLY,
BC_OPT_DC_ONLY,
} BcOptType;
typedef struct BcOptLong {
const char *name;
BcOptType type;
int val;
} BcOptLong;
void bc_opt_init(BcOpt *o, char **argv);
int bc_opt_parse(BcOpt *o, const BcOptLong *longopts);
#define BC_OPT_ISDASHDASH(a) \
((a) != NULL && (a)[0] == '-' && (a)[1] == '-' && (a)[2] == '\0')
#define BC_OPT_ISSHORTOPT(a) \
((a) != NULL && (a)[0] == '-' && (a)[1] != '-' && (a)[1] != '\0')
#define BC_OPT_ISLONGOPT(a) \
((a) != NULL && (a)[0] == '-' && (a)[1] == '-' && (a)[2] != '\0')
#endif // BC_OPT_H