diff options
Diffstat (limited to 'pod')
| -rw-r--r-- | pod/perltrap.pod | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/pod/perltrap.pod b/pod/perltrap.pod index d06f84ff80..835f879949 100644 --- a/pod/perltrap.pod +++ b/pod/perltrap.pod @@ -1435,13 +1435,26 @@ perl4 programs which unconsciously rely on the bugs in earlier perl versions. =item * Interpolation -You also have to be careful about array references. +You also have to be careful about array and hash brackets during +interpolation. + + print "$foo[" + + perl 4 prints: [ + perl 5 prints: syntax error print "$foo{" perl 4 prints: { perl 5 prints: syntax error +Perl 5 is expecting to find an index or key name following the respective +brackets, as well as an ending bracket of the appropriate type. In order +to mimic the behavior of Perl 4, you must escape the bracket like so. + + print "$foo\["; + print "$foo\{"; + =item * Interpolation Similarly, watch out for: |