Storing more than one regexp match in a line

Anonymous Monk has asked for the wisdom of the Perl Monks concerning the following question:

Hello,

I have a long line of text and I am searching it with a regexp. However, I want to store all strings matched by the regexp into an array even though the strings may not be identical.

An example; searching:

1 2 blue 4 yellow orange 6 7 yello purple ellow

I want to pull out yellow, yello and ellow into an array.

I can write the regexp to match ello trailing or followed by any number of letters - \w*ello\w* - but how do I store the different strings found in the one line into an array?

Thanks.

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Re: Storing more than one regexp match in a line by kschwab (Vicar) on Jul 28, 2001 at 17:54 UTC
`#!/usr/bin/perl $_="1 2 blue 4 yellow orange 6 7 yello purple ellow"; my @matches=/(\wello\w)/g; foreach my $one (@matches) { print "[$one]\n"; }` [download] results in: `$ perl tester [yellow] [yello] [ellow]` [download] Update:removed useless parens around @matches. duh. thanks Albannach. Update 2: Perhaps some text from perlfunc would help explain what's happening: The /g modifier specifies global pattern matching-- that is, matching as many times as possible within the string. How it behaves depends on the context. In list context, it returns a list of all the substrings matched by all the parentheses in the regular expression.	[reply] [d/l] [select]

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Re: Storing more than one regexp match in a line
by kschwab (Vicar) on Jul 28, 2001 at 17:54 UTC

#!/usr/bin/perl
$_="1 2 blue 4 yellow orange 6 7 yello purple ellow";
my @matches=/(\w*ello\w*)/g;
foreach my $one (@matches) {
     print "[$one]\n";
}
[download]

results in:

$ perl tester
[yellow]
[yello]
[ellow]
[download]

Update:

Update 2: Perhaps some text from perlfunc would help explain what's happening:

The /g modifier specifies global pattern matching--
that is, matching as many times as possible within
the string.  How it behaves depends on the context.
In list context, it returns a list of all the
substrings matched by all the parentheses in the
regular expression.

[reply]
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