Version 5.autotab-5

Support --version option. Put in correct copyright.
Change e-mail address to kylheku.com.

1 files changed, 17 insertions, 6 deletions

diff --git a/autotab.c b/autotab.c
index 93c3500..a841eeb 100644
--- a/autotab.c
+++ b/autotab.c
@@ -1,11 +1,12 @@
 /*
- * Autotab v004.
- * Program to detect the tabbing style of a text file, and report
+ * Autotab.
+ *
+ * A program to detect the tabbing style of a text file, and report
  * it as a Vim command to set up the tabstop, shiftwidth and expandtab
  * parameters.
  *
- * Copyright 2014
- * Kaz Kylheku <kkylheku@gmail.com>
+ * Copyright 2007-2016
+ * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  *
  * To use this, compile to an executable called "autotab".
@@ -19,6 +20,7 @@
  *     execute 'set' system("autotab < " . bufname("%")) | endif
  */
 
+#define AUTOTAB_VER 5
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -725,8 +727,17 @@ int main(int argc, char **argv)
   int tabsize = 8, expandtabs = 1, shiftwidth = 8;
   int ret = EXIT_FAILURE;
 
-  if (argc > 1 && !strcmp(argv[1], "-d"))
-    debug_enabled = 1;
+  if (argc > 1) {
+    if (!strcmp(argv[1], "-d")) {
+      debug_enabled = 1;
+    } else if (!strcmp(argv[1], "--version")) {
+      printf("Autotab %d\n", AUTOTAB_VER);
+      return EXIT_SUCCESS;
+    } else {
+      fputs("invalid argument\n", stderr);
+      return EXIT_FAILURE;
+    }
+  }
 
   if ((lines = snarf_lines(stdin)) == 0)
     goto out_default;