test-parse-options.c

   1 #include "cache.h"
   2 #include "parse-options.h"
   3 #include "string-list.h"
   4
   5 static int boolean = 0;
   6 static int integer = 0;
   7 static unsigned long timestamp;
   8 static int abbrev = 7;
   9 static int verbose = 0, dry_run = 0, quiet = 0;
  10 static char *string = NULL;
  11 static char *file = NULL;
  12 static int ambiguous;
  13 static struct string_list list;
  14
  15 static int length_callback(const struct option *opt, const char *arg, int unset)
  16 {
  17         printf("Callback: \"%s\", %d\n",
  18                 (arg ? arg : "not set"), unset);
  19         if (unset)
  20                 return 1; /* do not support unset */
  21
  22         *(int *)opt->value = strlen(arg);
  23         return 0;
  24 }
  25
  26 static int number_callback(const struct option *opt, const char *arg, int unset)
  27 {
  28         *(int *)opt->value = strtol(arg, NULL, 10);
  29         return 0;
  30 }
  31
  32 int main(int argc, const char **argv)
  33 {
  34         const char *prefix = "prefix/";
  35         const char *usage[] = {
  36                 "test-parse-options <options>",
  37                 NULL
  38         };
  39         struct option options[] = {
  40                 OPT_BOOL(0, "yes", &boolean, "get a boolean"),
  41                 OPT_BOOL('D', "no-doubt", &boolean, "begins with 'no-'"),
  42                 { OPTION_SET_INT, 'B', "no-fear", &boolean, NULL,
  43                   "be brave", PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, 1 },
  44                 OPT_COUNTUP('b', "boolean", &boolean, "increment by one"),
  45                 OPT_BIT('4', "or4", &boolean,
  46                         "bitwise-or boolean with ...0100", 4),
  47                 OPT_NEGBIT(0, "neg-or4", &boolean, "same as --no-or4", 4),
  48                 OPT_GROUP(""),
  49                 OPT_INTEGER('i', "integer", &integer, "get a integer"),
  50                 OPT_INTEGER('j', NULL, &integer, "get a integer, too"),
  51                 OPT_SET_INT(0, "set23", &integer, "set integer to 23", 23),
  52                 OPT_DATE('t', NULL, &timestamp, "get timestamp of <time>"),
  53                 OPT_CALLBACK('L', "length", &integer, "str",
  54                         "get length of <str>", length_callback),
  55                 OPT_FILENAME('F', "file", &file, "set file to <file>"),
  56                 OPT_GROUP("String options"),
  57                 OPT_STRING('s', "string", &string, "string", "get a string"),
  58                 OPT_STRING(0, "string2", &string, "str", "get another string"),
  59                 OPT_STRING(0, "st", &string, "st", "get another string (pervert ordering)"),
  60                 OPT_STRING('o', NULL, &string, "str", "get another string"),
  61                 OPT_NOOP_NOARG(0, "obsolete"),
  62                 OPT_SET_PTR(0, "default-string", &string,
  63                         "set string to default", (unsigned long)"default"),
  64                 OPT_STRING_LIST(0, "list", &list, "str", "add str to list"),
  65                 OPT_GROUP("Magic arguments"),
  66                 OPT_ARGUMENT("quux", "means --quux"),
  67                 OPT_NUMBER_CALLBACK(&integer, "set integer to NUM",
  68                         number_callback),
  69                 { OPTION_COUNTUP, '+', NULL, &boolean, NULL, "same as -b",
  70                   PARSE_OPT_NOARG | PARSE_OPT_NONEG | PARSE_OPT_NODASH },
  71                 { OPTION_COUNTUP, 0, "ambiguous", &ambiguous, NULL,
  72                   "positive ambiguity", PARSE_OPT_NOARG | PARSE_OPT_NONEG },
  73                 { OPTION_COUNTUP, 0, "no-ambiguous", &ambiguous, NULL,
  74                   "negative ambiguity", PARSE_OPT_NOARG | PARSE_OPT_NONEG },
  75                 OPT_GROUP("Standard options"),
  76                 OPT__ABBREV(&abbrev),
  77                 OPT__VERBOSE(&verbose, "be verbose"),
  78                 OPT__DRY_RUN(&dry_run, "dry run"),
  79                 OPT__QUIET(&quiet, "be quiet"),
  80                 OPT_END(),
  81         };
  82         int i;
  83
  84         argc = parse_options(argc, argv, prefix, options, usage, 0);
  85
  86         printf("boolean: %d\n", boolean);
  87         printf("integer: %u\n", integer);
  88         printf("timestamp: %lu\n", timestamp);
  89         printf("string: %s\n", string ? string : "(not set)");
  90         printf("abbrev: %d\n", abbrev);
  91         printf("verbose: %d\n", verbose);
  92         printf("quiet: %s\n", quiet ? "yes" : "no");
  93         printf("dry run: %s\n", dry_run ? "yes" : "no");
  94         printf("file: %s\n", file ? file : "(not set)");
  95
  96         for (i = 0; i < list.nr; i++)
  97                 printf("list: %s\n", list.items[i].string);
  98
  99         for (i = 0; i < argc; i++)
 100                 printf("arg %02d: %s\n", i, argv[i]);
 101
 102         return 0;
 103 }