New version handles -o<string> same as -o <string>

Python/getopt.c

-/* An implementation of getopt() by Amrit Prem */
+/*---------------------------------------------------------------------------*
+ * <RCS keywords>
+ *
+ * C++ Library
+ *
+ * Copyright 1992-1994, David Gottner
+ *
+ *                    All Rights Reserved
+ *
+ * Permission to use, copy, modify, and distribute this software and its 
+ * documentation for any purpose and without fee is hereby granted, 
+ * provided that the above copyright notice, this permission notice and
+ * the following disclaimer notice appear unmodified in all copies.
+ *
+ * I DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.  IN NO EVENT SHALL I
+ * BE LIABLE FOR ANY SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY
+ * DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA, OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+ * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * Nevertheless, I would like to know about bugs in this library or
+ * suggestions for improvment.  Send bug reports and feedback to
+ * davegottner@delphi.com.
+ *---------------------------------------------------------------------------*/
 
 #include <stdio.h>
 #include <string.h>
 
-#define bool int
-#define TRUE  1
-#define FALSE 0
-#define EOS   '\0'
+#define bool	int
+#define TRUE	1
+#define FALSE	0
+
 
 bool    opterr = TRUE;          /* generate error messages */
 int     optind = 1;             /* index into argv array   */
@@ -15,40 +39,47 @@ char *  optarg = NULL;          /* optional argument       */
 
 int getopt(int argc, char *argv[], const char optstring[])
 {
-   static   char *opt_ptr = "";
-   register char *ptr;
-	    int   option;
+	static   char *opt_ptr = "";
+	register char *ptr;
+			 int   option;
 
-   if (*opt_ptr == EOS) {
+	if (*opt_ptr == '\0') {
 
-      if (optind >= argc || argv[optind][0] != '-')
-	 return -1;
+		if (optind >= argc || argv[optind][0] != '-')
+			return -1;
 
-      else if (strcmp(argv[optind], "--") == 0) {
-	 ++optind;
-	 return -1;
-      }
+		else if (strcmp(argv[optind], "--") == 0) {
+			++optind;
+			return -1;
+		}
 
-      opt_ptr = argv[optind++] + 1;
-   }
+		opt_ptr = &argv[optind++][1]; 
+	}
 
-   if ((ptr = strchr(optstring, option = *opt_ptr++)) == NULL) {
-      if (opterr)
-	 fprintf(stderr, "Unknown option: -%c\n", option);
+	if ((ptr = strchr(optstring, option = *opt_ptr++)) == NULL) {
+		if (opterr)
+			fprintf(stderr, "Unknown option: -%c\n", option);
 
-      return '?';
-   }
+		return '?';
+	}
 
-   if (*(ptr + 1) == ':') {
-      if (optind >= argc) {
-	 if (opterr)
-	    fprintf(stderr, "Argument expected for the -%c option\n", option);
+	if (*(ptr + 1) == ':') {
+		if (*opt_ptr != '\0') {
+			optarg  = opt_ptr;
+			opt_ptr = "";
+		}
 
-	 return '?';
-      }
+		else {
+			if (optind >= argc) {
+				if (opterr)
+					fprintf(stderr,
+			    "Argument expected for the -%c option\n", option);
+				return '?';
+			}
 
-      optarg = argv[optind++];
-   }
+			optarg = argv[optind++];
+		}
+	}
 
-   return option;
+	return option;
 }