mirror of
https://github.com/Mercury-Language/mercury.git
synced 2025-12-08 18:34:00 +00:00
544f3bf095
LICENSE:
Mention files derived from musl library.
runtime/process_getopt:
Process files from ../getopt/*.[ch] to produce
mercury_getopt.h, mercury_getopt.c, mercury_getopt_long.c.
runtime/mercury_getopt.h:
runtime/mercury_getopt.c:
runtime/mercury_getopt_long.c:
Add files generated by process_getopt.
runtime/Mmakefile:
Update list of source files.
util/Mmakefile:
Use musl getopt if the system C library does not have getopt().
tests/debugger/browser_test.exp:
tests/debugger/browser_test.exp2:
tests/debugger/browser_test.exp3:
tests/hard_coded/runtime_opt.exp:
Update expected error messages to match new getopt() output.
changed exp output
121 lines
2.8 KiB
C
121 lines
2.8 KiB
C
/*
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Copyright © 2005-2014 Rich Felker, et al.
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Permission is hereby granted, free of charge, to any person obtaining
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a copy of this software and associated documentation files (the
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"Software"), to deal in the Software without restriction, including
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without limitation the rights to use, copy, modify, merge, publish,
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distribute, sublicense, and/or sell copies of the Software, and to
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permit persons to whom the Software is furnished to do so, subject to
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the following conditions:
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The above copyright notice and this permission notice shall be
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included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include <string.h>
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#include <stdio.h>
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#define GETOPT_IMPL
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#include "mercury_getopt.h"
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char *MR_optarg;
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int MR_optind=1, MR_opterr=1, MR_optopt, MR__optpos, MR_optreset=0;
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#define optpos MR__optpos
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void MR__getopt_msg(const char *a, const char *b, const char *c, size_t l)
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{
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FILE *f = stderr;
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if (
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fputs(a, f)>=0
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&& fwrite(b, strlen(b), 1, f)
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&& putc('`', f)
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&& fwrite(c, 1, l, f)==l
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&& fputs("'\n", f)>=0
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) { }
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}
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int MR_getopt(int argc, char * const argv[], const char *optstring)
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{
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int i;
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int c, d;
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int k, l;
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char *optchar;
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if (!MR_optind || MR_optreset) {
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MR_optreset = 0;
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MR__optpos = 0;
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MR_optind = 1;
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}
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if (MR_optind >= argc || !argv[MR_optind])
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return -1;
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if (argv[MR_optind][0] != '-') {
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if (optstring[0] == '-') {
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MR_optarg = argv[MR_optind++];
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return 1;
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}
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return -1;
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}
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if (!argv[MR_optind][1])
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return -1;
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if (argv[MR_optind][1] == '-' && !argv[MR_optind][2])
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return MR_optind++, -1;
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if (!optpos) optpos++;
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c = argv[MR_optind][optpos];
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k = 1;
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optchar = argv[MR_optind]+optpos;
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optpos += k;
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if (!argv[MR_optind][optpos]) {
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MR_optind++;
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optpos = 0;
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}
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if (optstring[0] == '-' || optstring[0] == '+')
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optstring++;
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i = 0;
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d = 0;
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do {
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d = optstring[i];
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l = d ? 1 : 0;
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if (l>0) i+=l; else i++;
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} while (l && d != c);
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if (d != c || c == ':') {
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MR_optopt = c;
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if (optstring[0] != ':' && MR_opterr)
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MR__getopt_msg(argv[0], ": unrecognized option: ", optchar, k);
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return '?';
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}
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if (optstring[i] == ':') {
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MR_optarg = 0;
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if (optstring[i+1] != ':' || optpos) {
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MR_optarg = argv[MR_optind++] + optpos;
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optpos = 0;
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}
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if (MR_optind > argc) {
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MR_optopt = c;
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if (optstring[0] == ':') return ':';
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if (MR_opterr) MR__getopt_msg(argv[0],
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": option requires an argument: ",
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optchar, k);
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return '?';
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}
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}
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return c;
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}
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