-
-$usage = "Usage: $0 [-Dstring=replacement] [[infile] ...]\n";
-
-if (!defined(@ARGV)) { die ("$usage"); }
-
-# read in the command line and get some definitions
-while ($_=$ARGV[0], /^-/) {
- if (/^-D/) {
- # definition
- shift(@ARGV);
- if ( /-D(.*)=(.*)/ ) {
- $def{"$1"}=$2;
- } else {
- die ("$usage$0: error in command line arguments.\n");
- }
- } else {
- @cmd = split(//, $ARGV[0]); $opt = $cmd[1];
- die ("$usage$0: unknown option '-$opt'\n");
- }
-} # while parsing arguments
-
-if (!defined(%def)) {
- die ("$0: nothing to do - no substitutions listed!\n");