shithub: jbig2

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implement --version


git-svn-id: http://svn.ghostscript.com/jbig2dec/trunk@140 ded80894-8fb9-0310-811b-c03f3676ab4d

--- a/jbig2dec.c

+++ b/jbig2dec.c

@@ -8,7 +8,7 @@

     the Free Software Foundation; either version 2 of the License, or

     (at your option) any later version.

-    $Id: jbig2dec.c,v 1.32 2002/07/15 20:01:01 giles Exp $

+    $Id: jbig2dec.c,v 1.33 2002/07/15 23:50:47 giles Exp $

 */

 #ifdef HAVE_CONFIG_H

@@ -52,6 +52,9 @@

 	char *output_file;

 } jbig2dec_params_t;

+static int print_version(void);

+static int print_usage(void);

+

 /* page hashing functions */

 static void

 hash_init(jbig2dec_params_t *params)

@@ -111,6 +114,7 @@

 {

 	static struct option long_options[] = {

 		{"quiet", 0, NULL, 'q'},

+                {"version", 0, NULL, 'V'},

 		{"help", 0, NULL, 'h'},

 		{"dump", 0, NULL, 'd'},

                 {"hash", 0, NULL, 'm'},

@@ -122,10 +126,10 @@

 	while (1) {

 		option = getopt_long(argc, argv,

-			"qhdo:", long_options, &option_idx);

+			"qVh?do:", long_options, &option_idx);

 		if (option == -1) break;

-		fprintf(stderr, "option '%c' value '%s'\n", option, optarg);

+		//fprintf(stderr, "option '%c' value '%s'\n", option, optarg);

 		switch (option) {

 			case 0:	// unknown long option

 				if (!params->verbose) fprintf(stdout,

@@ -139,6 +143,12 @@

 			case '?':

 				params->mode = usage;

                                 break;

+                        case 'V':

+                                /* the GNU Coding Standards suggest --version should

+                                   override all other options */

+                                print_version();

+                                exit(0);

+                                break;

 			case 'd':

 				params->mode=dump;

 				break;

@@ -158,6 +168,13 @@

 }

 static int

+print_version (void)

+{

+    fprintf(stdout, "%s %s\n", PACKAGE, VERSION);

+    return 0;

+}

+

+static int

 print_usage (void)

 {

   fprintf(stderr,

@@ -175,6 +192,7 @@

     "    -q --quiet     suppress diagnostic output\n"

     "    -d --dump      print the structure of the jbig2 file\n"

     "                   rather than explicitly decoding\n"

+    "       --version   program name and version information\n"

     "       --hash	print a hash of the decode document\n"

     "    -o <file>	send decoded output to <file>\n"

     "                   Defaults to the the input with a different\n"