examples/example1.c

   1 #include "../ctxopt.h"
   2 #include <stdio.h>
   3 #include <stdlib.h>
   4 #include <string.h>
   5
   6 /* Callback functions */
   7 /* ****************** */
   8
   9 void
  10 user_action(char * ctx_name, char * opt_name, char * param, int nb_values,
  11             char ** values, int nb_opt_data, void ** opt_data, int nb_ctx_data,
  12             void ** ctx_data)
  13 {
  14   printf("User %s\n", values[0]);
  15 }
  16
  17 void
  18 groups_action(char * ctx_name, char * opt_name, char * param, int nb_values,
  19               char ** values, int nb_opt_data, void ** opt_data,
  20               int nb_ctx_data, void ** ctx_data)
  21 {
  22   int v;
  23
  24   printf("Groups %s", values[0]);
  25
  26   for (v = 1; v < nb_values; v++)
  27     printf(", %s", values[v]);
  28
  29   printf(".\n");
  30 }
  31
  32 /* Program entry */
  33 /* ************* */
  34
  35 int
  36 main(int argc, char * argv[])
  37 {
  38   int     nb_rem_args = 0;    /* Nb of remaining unprocessed arguments. */
  39   char ** rem_args    = NULL; /* Remaining arguments string array.      */
  40
  41   /* initialize ctxopt */
  42   /* """"""""""""""""" */
  43   ctxopt_init(argv[0], "stop_if_non_option=Yes "
  44                        "allow_abbreviations=no ");
  45
  46   /* Create new contexts with their allowed options */
  47   /* """""""""""""""""""""""""""""""""""""""""""""" */
  48   ctxopt_new_ctx("main", "[user>ctx1... #<string>]");
  49   ctxopt_new_ctx("ctx1", "group #<string>...");
  50
  51   /* Attach parameters to options */
  52   /* """""""""""""""""""""""""""" */
  53   ctxopt_add_opt_settings(parameters, "user", "-u -user");
  54   ctxopt_add_opt_settings(parameters, "group", "-g -groups");
  55
  56   /* Attach a callback action to options */
  57   /* """"""""""""""""""""""""""""""""""" */
  58   ctxopt_add_opt_settings(actions, "user", user_action, NULL);
  59   ctxopt_add_opt_settings(actions, "group", groups_action, NULL);
  60
  61   /* Parse and check the command line options */
  62   /* """""""""""""""""""""""""""""""""""""""" */
  63   ctxopt_analyze(argc - 1, argv + 1, &nb_rem_args, &rem_args);
  64
  65   /* Execute registered actions in sequence */
  66   /* """""""""""""""""""""""""""""""""""""" */
  67   ctxopt_evaluate();
  68
  69   exit(EXIT_SUCCESS);
  70 }