In short:

] and - are special in character classes.

As rules of thumb avoiding ambiguity°:

If needed ...

update

D:\>perl -dE0

Loading DB routines from perl5db.pl version 1.49_05
Editor support available.

Enter h or 'h h' for help, or 'perldoc perldebug' for more help.

  DB<1> say "$_:\t", $_ =~ /[]abc-]/ for qw/] [ - a/
]:      1
[:
-:      1
a:      1

  DB<2>

[download]

°) Otherwise ] will close the class and - will denote a range.

Cheers Rolf
(addicted to the Perl Programming Language :)
Wikisyntax for the Monastery FootballPerl is like chess, only without the dice

In reply to Re: regex question Underscores, lines and paratheses. by LanX
in thread regex question Underscores, lines and paratheses. by sbrothy

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