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