| 1 | ;# shellwords.pl |
| 2 | ;# |
| 3 | ;# Usage: |
| 4 | ;# require 'shellwords.pl'; |
| 5 | ;# @words = &shellwords($line); |
| 6 | ;# or |
| 7 | ;# @words = &shellwords(@lines); |
| 8 | ;# or |
| 9 | ;# @words = &shellwords; # defaults to $_ (and clobbers it) |
| 10 | |
| 11 | sub shellwords { |
| 12 | package shellwords; |
| 13 | local($_) = join('', @_) if @_; |
| 14 | local(@words,$snippet,$field); |
| 15 | |
| 16 | s/^\s+//; |
| 17 | while ($_ ne '') { |
| 18 | $field = ''; |
| 19 | for (;;) { |
| 20 | if (s/^"(([^"\\]|\\.)*)"//) { |
| 21 | ($snippet = $1) =~ s#\\(.)#$1#g; |
| 22 | } |
| 23 | elsif (/^"/) { |
| 24 | die "Unmatched double quote: $_\n"; |
| 25 | } |
| 26 | elsif (s/^'(([^'\\]|\\.)*)'//) { |
| 27 | ($snippet = $1) =~ s#\\(.)#$1#g; |
| 28 | } |
| 29 | elsif (/^'/) { |
| 30 | die "Unmatched single quote: $_\n"; |
| 31 | } |
| 32 | elsif (s/^\\(.)//) { |
| 33 | $snippet = $1; |
| 34 | } |
| 35 | elsif (s/^([^\s\\'"]+)//) { |
| 36 | $snippet = $1; |
| 37 | } |
| 38 | else { |
| 39 | s/^\s+//; |
| 40 | last; |
| 41 | } |
| 42 | $field .= $snippet; |
| 43 | } |
| 44 | push(@words, $field); |
| 45 | } |
| 46 | @words; |
| 47 | } |
| 48 | 1; |