For tidiness, I want to store a bunch of regular expressions outside of a script, but I can't work out how to get interpolation of the replace string correct. Here's a simple example:
# works as expected
my $text = 'Hello world';
$text=~ s/(\w+)/$1 Perl/;
print "Regular regex: $text\n";
# but now try with variable interpolation
my $text2 = 'Hello world';
my $match = qr/(\w+)/;
my $replace = '$1 Perl';
$text2 =~ s/$match/$replace/e;
# not what I want
print "Interpolated regex: $text2\n";
I won't bore you with all the variations I've tried so far, but I've been playing with this for an hour (including qr and different modifiers) and it's driving me crazy. Any ideas?
Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
Read Where should I post X? if you're not absolutely sure you're posting in the right place.
Please read these before you post! —
Posts may use any of the Perl Monks Approved HTML tags:
Outside of code tags, you may need to use entities for some characters:
- a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.
| & || & |
| < || < |
| > || > |
| [ || [ |
| ] || ] ||