3aa99676b4
This version fixes a regression with regard to tradtional behavior of the non-standard FreeBSD option "-e". In the previous version "-e quit" caused bc to exit before any computations had been performed, since all -e option parameters were concatenated and parsed as a whole, with quit causing the program to exit as soon as it was parsed. This version parses and executes commands passed with -e one by one and only exits after all prior commands have been executed. This commit is not a SVN merge, since the vendor import had been performed after the import to contrib. Instead the contents of contrib/bc has been removed and the new version is copied over unchanged from vendor/bc/dist.
80 lines
2.5 KiB
C
80 lines
2.5 KiB
C
/*
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* *****************************************************************************
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2018-2020 Gavin D. Howard and contributors.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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* *****************************************************************************
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*
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* Adapted from https://github.com/skeeto/optparse
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*
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* *****************************************************************************
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*
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* Definitions for getopt_long() replacement.
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*
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*/
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#ifndef BC_OPT_H
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#define BC_OPT_H
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#include <stdbool.h>
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typedef struct BcOpt {
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char **argv;
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size_t optind;
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int optopt;
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int subopt;
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char *optarg;
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} BcOpt;
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typedef enum BcOptType {
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BC_OPT_NONE,
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BC_OPT_REQUIRED,
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BC_OPT_BC_ONLY,
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BC_OPT_DC_ONLY,
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} BcOptType;
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typedef struct BcOptLong {
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const char *name;
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BcOptType type;
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int val;
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} BcOptLong;
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void bc_opt_init(BcOpt *o, char **argv);
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int bc_opt_parse(BcOpt *o, const BcOptLong *longopts);
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#define BC_OPT_ISDASHDASH(a) \
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((a) != NULL && (a)[0] == '-' && (a)[1] == '-' && (a)[2] == '\0')
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#define BC_OPT_ISSHORTOPT(a) \
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((a) != NULL && (a)[0] == '-' && (a)[1] != '-' && (a)[1] != '\0')
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#define BC_OPT_ISLONGOPT(a) \
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((a) != NULL && (a)[0] == '-' && (a)[1] == '-' && (a)[2] != '\0')
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#endif // BC_OPT_H
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