I have a series of words followed by a pre-determined marker (say the letter x in this case) contained in a string.
$contents = 'test1x test!x test2x';
There is a need to extract a list of those words that contain only alphanumeric characters plus the marker, ‘x’. So obviously “test!x” not wanted.
If I run the following regex:
$contents =~ /(?:[\w]+) /g
Then I get the following list returned:
("test1x", "x", "test2x")
as opposed to a required list of
The problem is with the 2nd item – it fails on the character “!” and just moves on to the next character when I really want to just stop right there and not return anything for this word.
I know I am just not seeing something completely obvious…
Continue reading Struggling With Perl Regular Expression »