2721ce21e4
There are two types of string_lists: those that own the string memory, and those that don't. You can tell the difference by the strdup_strings flag, and one should use either STRING_LIST_INIT_DUP, or STRING_LIST_INIT_NODUP as an initializer. Historically, the normal all-zeros initialization has corresponded to the NODUP case. Many sites use no initializer at all, and that works as a shorthand for that case. But for a reader of the code, it can be hard to remember which is which. Let's be more explicit and actually have each site declare which type it means to use. This is a fairly mechanical conversion; I assumed each site was correct as-is, and just switched them all to NODUP. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
105 lines
3.5 KiB
C
105 lines
3.5 KiB
C
#include "cache.h"
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#include "parse-options.h"
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#include "string-list.h"
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static int boolean = 0;
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static int integer = 0;
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static unsigned long magnitude = 0;
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static unsigned long timestamp;
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static int abbrev = 7;
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static int verbose = 0, dry_run = 0, quiet = 0;
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static char *string = NULL;
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static char *file = NULL;
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static int ambiguous;
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static struct string_list list = STRING_LIST_INIT_NODUP;
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static int length_callback(const struct option *opt, const char *arg, int unset)
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{
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printf("Callback: \"%s\", %d\n",
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(arg ? arg : "not set"), unset);
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if (unset)
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return 1; /* do not support unset */
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*(int *)opt->value = strlen(arg);
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return 0;
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}
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static int number_callback(const struct option *opt, const char *arg, int unset)
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{
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*(int *)opt->value = strtol(arg, NULL, 10);
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return 0;
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}
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int main(int argc, char **argv)
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{
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const char *prefix = "prefix/";
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const char *usage[] = {
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"test-parse-options <options>",
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NULL
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};
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struct option options[] = {
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OPT_BOOL(0, "yes", &boolean, "get a boolean"),
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OPT_BOOL('D', "no-doubt", &boolean, "begins with 'no-'"),
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{ OPTION_SET_INT, 'B', "no-fear", &boolean, NULL,
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"be brave", PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, 1 },
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OPT_COUNTUP('b', "boolean", &boolean, "increment by one"),
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OPT_BIT('4', "or4", &boolean,
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"bitwise-or boolean with ...0100", 4),
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OPT_NEGBIT(0, "neg-or4", &boolean, "same as --no-or4", 4),
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OPT_GROUP(""),
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OPT_INTEGER('i', "integer", &integer, "get a integer"),
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OPT_INTEGER('j', NULL, &integer, "get a integer, too"),
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OPT_MAGNITUDE('m', "magnitude", &magnitude, "get a magnitude"),
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OPT_SET_INT(0, "set23", &integer, "set integer to 23", 23),
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OPT_DATE('t', NULL, ×tamp, "get timestamp of <time>"),
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OPT_CALLBACK('L', "length", &integer, "str",
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"get length of <str>", length_callback),
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OPT_FILENAME('F', "file", &file, "set file to <file>"),
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OPT_GROUP("String options"),
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OPT_STRING('s', "string", &string, "string", "get a string"),
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OPT_STRING(0, "string2", &string, "str", "get another string"),
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OPT_STRING(0, "st", &string, "st", "get another string (pervert ordering)"),
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OPT_STRING('o', NULL, &string, "str", "get another string"),
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OPT_NOOP_NOARG(0, "obsolete"),
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OPT_STRING_LIST(0, "list", &list, "str", "add str to list"),
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OPT_GROUP("Magic arguments"),
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OPT_ARGUMENT("quux", "means --quux"),
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OPT_NUMBER_CALLBACK(&integer, "set integer to NUM",
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number_callback),
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{ OPTION_COUNTUP, '+', NULL, &boolean, NULL, "same as -b",
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PARSE_OPT_NOARG | PARSE_OPT_NONEG | PARSE_OPT_NODASH },
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{ OPTION_COUNTUP, 0, "ambiguous", &ambiguous, NULL,
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"positive ambiguity", PARSE_OPT_NOARG | PARSE_OPT_NONEG },
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{ OPTION_COUNTUP, 0, "no-ambiguous", &ambiguous, NULL,
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"negative ambiguity", PARSE_OPT_NOARG | PARSE_OPT_NONEG },
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OPT_GROUP("Standard options"),
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OPT__ABBREV(&abbrev),
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OPT__VERBOSE(&verbose, "be verbose"),
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OPT__DRY_RUN(&dry_run, "dry run"),
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OPT__QUIET(&quiet, "be quiet"),
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OPT_END(),
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};
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int i;
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argc = parse_options(argc, (const char **)argv, prefix, options, usage, 0);
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printf("boolean: %d\n", boolean);
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printf("integer: %d\n", integer);
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printf("magnitude: %lu\n", magnitude);
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printf("timestamp: %lu\n", timestamp);
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printf("string: %s\n", string ? string : "(not set)");
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printf("abbrev: %d\n", abbrev);
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printf("verbose: %d\n", verbose);
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printf("quiet: %s\n", quiet ? "yes" : "no");
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printf("dry run: %s\n", dry_run ? "yes" : "no");
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printf("file: %s\n", file ? file : "(not set)");
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for (i = 0; i < list.nr; i++)
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printf("list: %s\n", list.items[i].string);
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for (i = 0; i < argc; i++)
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printf("arg %02d: %s\n", i, argv[i]);
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return 0;
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}
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