;# getopts.pl - a better getopt.pl
-
+#
+# This library is no longer being maintained, and is included for backward
+# compatibility with Perl 4 programs which may require it.
+#
+# In particular, this should not be used as an example of modern Perl
+# programming techniques.
+#
+# Suggested alternatives: Getopt::Long or Getopt::Std
+#
;# Usage:
;# do Getopts('a:bc'); # -a takes arg. -b & -c not. Sets opt_* as a
;# # side effect.
sub Getopts {
local($argumentative) = @_;
local(@args,$_,$first,$rest);
+ local($errs) = 0;
@args = split( / */, $argumentative );
- while(($_ = $ARGV[0]) =~ /^-(.)(.*)/) {
+ while(@ARGV && ($_ = $ARGV[0]) =~ /^-(.)(.*)/) {
($first,$rest) = ($1,$2);
$pos = index($argumentative,$first);
- if($pos >= $[) {
- if($args[$pos+1] eq ':') {
+ if($pos >= 0) {
+ if($pos < $#args && $args[$pos+1] eq ':') {
shift(@ARGV);
if($rest eq '') {
+ ++$errs unless @ARGV;
$rest = shift(@ARGV);
}
- eval "\$opt_$first = \$rest;";
+ ${"opt_$first"} = $rest;
}
else {
- eval "\$opt_$first = 1";
+ ${"opt_$first"} = 1;
if($rest eq '') {
shift(@ARGV);
}
}
}
else {
- print stderr "Unknown option: $first\n";
+ print STDERR "Unknown option: $first\n";
+ ++$errs;
if($rest ne '') {
$ARGV[0] = "-$rest";
}
}
}
}
+ $errs == 0;
}
1;