ccutil/getopt.cpp

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#include          "mfcpch.h"     //precompiled headers
#include          <string.h>
#include          <stdio.h>
#include          "getopt.h"
#include          "notdll.h"     //must be last include

int optind;
char *optarg;

/* ================== */
int
getopt (                         //parse args
INT32 argc,                      //arg count
char *argv[],                    //args
const char *arglist                    //string of arg chars
) {
  char *arg;                     //arg char

  if (optind == 0)
    optind = 1;
  if (optind < argc && argv[optind][0] == '-') {
    arg = strchr (arglist, argv[optind][1]);
    if (arg == NULL || *arg == ':')
      return '?';                //dud option
    optind++;
    optarg = argv[optind];
    if (arg[1] == ':') {
      if (argv[optind - 1][2] != '\0')
                                 //immediately after
        optarg = argv[optind - 1] + 2;
      else
        optind++;
    }
    return *arg;
  }
  else
    return EOF;
}

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