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 magnitude = 0;
   8 static unsigned long timestamp;
   9 static int abbrev = 7;
  10 static int verbose = -1; /* unspecified */
  11 static int dry_run = 0, quiet = 0;
  12 static char *string = NULL;
  13 static char *file = NULL;
  14 static int ambiguous;
  15 static struct string_list list;
  16
  17 static struct {
  18         int called;
  19         const char *arg;
  20         int unset;
  21 } length_cb;
  22
  23 static int length_callback(const struct option *opt, const char *arg, int unset)
  24 {
  25         length_cb.called = 1;
  26         length_cb.arg = arg;
  27         length_cb.unset = unset;
  28
  29         if (unset)
  30                 return 1; /* do not support unset */
  31
  32         *(int *)opt->value = strlen(arg);
  33         return 0;
  34 }
  35
  36 static int number_callback(const struct option *opt, const char *arg, int unset)
  37 {
  38         *(int *)opt->value = strtol(arg, NULL, 10);
  39         return 0;
  40 }
  41
  42 int main(int argc, char **argv)
  43 {
  44         const char *prefix = "prefix/";
  45         const char *usage[] = {
  46                 "test-parse-options <options>",
  47                 NULL
  48         };
  49         struct option options[] = {
  50                 OPT_BOOL(0, "yes", &boolean, "get a boolean"),
  51                 OPT_BOOL('D', "no-doubt", &boolean, "begins with 'no-'"),
  52                 { OPTION_SET_INT, 'B', "no-fear", &boolean, NULL,
  53                   "be brave", PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, 1 },
  54                 OPT_COUNTUP('b', "boolean", &boolean, "increment by one"),
  55                 OPT_BIT('4', "or4", &boolean,
  56                         "bitwise-or boolean with ...0100", 4),
  57                 OPT_NEGBIT(0, "neg-or4", &boolean, "same as --no-or4", 4),
  58                 OPT_GROUP(""),
  59                 OPT_INTEGER('i', "integer", &integer, "get a integer"),
  60                 OPT_INTEGER('j', NULL, &integer, "get a integer, too"),
  61                 OPT_MAGNITUDE('m', "magnitude", &magnitude, "get a magnitude"),
  62                 OPT_SET_INT(0, "set23", &integer, "set integer to 23", 23),
  63                 OPT_DATE('t', NULL, &timestamp, "get timestamp of <time>"),
  64                 OPT_CALLBACK('L', "length", &integer, "str",
  65                         "get length of <str>", length_callback),
  66                 OPT_FILENAME('F', "file", &file, "set file to <file>"),
  67                 OPT_GROUP("String options"),
  68                 OPT_STRING('s', "string", &string, "string", "get a string"),
  69                 OPT_STRING(0, "string2", &string, "str", "get another string"),
  70                 OPT_STRING(0, "st", &string, "st", "get another string (pervert ordering)"),
  71                 OPT_STRING('o', NULL, &string, "str", "get another string"),
  72                 OPT_NOOP_NOARG(0, "obsolete"),
  73                 OPT_STRING_LIST(0, "list", &list, "str", "add str to list"),
  74                 OPT_GROUP("Magic arguments"),
  75                 OPT_ARGUMENT("quux", "means --quux"),
  76                 OPT_NUMBER_CALLBACK(&integer, "set integer to NUM",
  77                         number_callback),
  78                 { OPTION_COUNTUP, '+', NULL, &boolean, NULL, "same as -b",
  79                   PARSE_OPT_NOARG | PARSE_OPT_NONEG | PARSE_OPT_NODASH },
  80                 { OPTION_COUNTUP, 0, "ambiguous", &ambiguous, NULL,
  81                   "positive ambiguity", PARSE_OPT_NOARG | PARSE_OPT_NONEG },
  82                 { OPTION_COUNTUP, 0, "no-ambiguous", &ambiguous, NULL,
  83                   "negative ambiguity", PARSE_OPT_NOARG | PARSE_OPT_NONEG },
  84                 OPT_GROUP("Standard options"),
  85                 OPT__ABBREV(&abbrev),
  86                 OPT__VERBOSE(&verbose, "be verbose"),
  87                 OPT__DRY_RUN(&dry_run, "dry run"),
  88                 OPT__QUIET(&quiet, "be quiet"),
  89                 OPT_END(),
  90         };
  91         int i;
  92
  93         argc = parse_options(argc, (const char **)argv, prefix, options, usage, 0);
  94
  95         if (length_cb.called) {
  96                 const char *arg = length_cb.arg;
  97                 int unset = length_cb.unset;
  98                 printf("Callback: \"%s\", %d\n",
  99                        (arg ? arg : "not set"), unset);
 100         }
 101         printf("boolean: %d\n", boolean);
 102         printf("integer: %d\n", integer);
 103         printf("magnitude: %lu\n", magnitude);
 104         printf("timestamp: %lu\n", timestamp);
 105         printf("string: %s\n", string ? string : "(not set)");
 106         printf("abbrev: %d\n", abbrev);
 107         printf("verbose: %d\n", verbose);
 108         printf("quiet: %d\n", quiet);
 109         printf("dry run: %s\n", dry_run ? "yes" : "no");
 110         printf("file: %s\n", file ? file : "(not set)");
 111
 112         for (i = 0; i < list.nr; i++)
 113                 printf("list: %s\n", list.items[i].string);
 114
 115         for (i = 0; i < argc; i++)
 116                 printf("arg %02d: %s\n", i, argv[i]);
 117
 118         return 0;
 119 }