StackOverflow2013

Note that there are some explanatory texts on larger screens.

plurals

PO
text
Body
copied!<p>You might find that <a href="http://search.cpan.org/~gsullivan/YAPE-Regex-Explain-4.01/" rel="nofollow">YAPE::Regex::Explain</a> is a handy tool:</p> <p>Using Axeman's regular expression:</p> <pre><code>#!/usr/bin/env perl use strict; use warnings; use YAPE::Regex::Explain; my $expr = q(/^test; (.*\n)/); print YAPE::Regex::Explain->new( $expr )->explain; The regular expression: (?-imsx:/^test; (.*\n)/) matches as follows: NODE EXPLANATION ---------------------------------------------------------------------- (?-imsx: group, but do not capture (case-sensitive) (with ^ and $ matching normally) (with . not matching \n) (matching whitespace and # normally): ---------------------------------------------------------------------- / '/' ---------------------------------------------------------------------- ^ the beginning of the string ---------------------------------------------------------------------- test; 'test; ' ---------------------------------------------------------------------- ( group and capture to \1: ---------------------------------------------------------------------- .* any character except \n (0 or more times (matching the most amount possible)) ---------------------------------------------------------------------- \n '\n' (newline) ---------------------------------------------------------------------- ) end of \1 ---------------------------------------------------------------------- / '/' ---------------------------------------------------------------------- ) end of grouping ---------------------------------------------------------------------- </code></pre>

Querying!

Guidance

An individual column

Larger individual text columns get their own page to allow for proper reading.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload