Commit | Line | Data |
---|---|---|
920dae64 AT |
1 | ;# getopts.pl - a better getopt.pl |
2 | # | |
3 | # This library is no longer being maintained, and is included for backward | |
4 | # compatibility with Perl 4 programs which may require it. | |
5 | # | |
6 | # In particular, this should not be used as an example of modern Perl | |
7 | # programming techniques. | |
8 | # | |
9 | # Suggested alternatives: Getopt::Long or Getopt::Std | |
10 | # | |
11 | ;# Usage: | |
12 | ;# do Getopts('a:bc'); # -a takes arg. -b & -c not. Sets opt_* as a | |
13 | ;# # side effect. | |
14 | ||
15 | sub Getopts { | |
16 | local($argumentative) = @_; | |
17 | local(@args,$_,$first,$rest); | |
18 | local($errs) = 0; | |
19 | local($[) = 0; | |
20 | ||
21 | @args = split( / */, $argumentative ); | |
22 | while(@ARGV && ($_ = $ARGV[0]) =~ /^-(.)(.*)/) { | |
23 | ($first,$rest) = ($1,$2); | |
24 | $pos = index($argumentative,$first); | |
25 | if($pos >= $[) { | |
26 | if($args[$pos+1] eq ':') { | |
27 | shift(@ARGV); | |
28 | if($rest eq '') { | |
29 | ++$errs unless(@ARGV); | |
30 | $rest = shift(@ARGV); | |
31 | } | |
32 | eval " | |
33 | push(\@opt_$first, \$rest); | |
34 | if (!defined \$opt_$first or \$opt_$first eq '') { | |
35 | \$opt_$first = \$rest; | |
36 | } | |
37 | else { | |
38 | \$opt_$first .= ' ' . \$rest; | |
39 | } | |
40 | "; | |
41 | } | |
42 | else { | |
43 | eval "\$opt_$first = 1"; | |
44 | if($rest eq '') { | |
45 | shift(@ARGV); | |
46 | } | |
47 | else { | |
48 | $ARGV[0] = "-$rest"; | |
49 | } | |
50 | } | |
51 | } | |
52 | else { | |
53 | print STDERR "Unknown option: $first\n"; | |
54 | ++$errs; | |
55 | if($rest ne '') { | |
56 | $ARGV[0] = "-$rest"; | |
57 | } | |
58 | else { | |
59 | shift(@ARGV); | |
60 | } | |
61 | } | |
62 | } | |
63 | $errs == 0; | |
64 | } | |
65 | ||
66 | 1; |