[Buffalo-pm] regexp returning count of pattern.
Kevin Eye
eye at buffalo.edu
Tue Jan 17 10:06:45 PST 2006
Woah. I totally misinterpreted the question. Sorry. I should have paid more
attention to the example.
- Kevin
On 1/17/06 12:30 PM, "Kevin Eye" <eye at buffalo.edu> wrote:
> The /g flag on regex substitutions returns the number of substitutions.
>
> Try this:
>
> $text = 'abcba';
> $num_substitutions = $text =~ /b/d/g;
>
> $num_substitutions is 2 because two b's were replaced with d's.
>
> You can do this without substitutions to count the number of matches, too.
>
> - Kevin
>
>
> On 1/17/06 12:26 PM, "Josh Johnson" <joshj at linuxmail.org> wrote:
>
>> I need a way to get the count of a pattern being matched. I can make up an
>> elaborate function to do this but I wondered if perl had something built in I
>> could use. For example, say I have the string:
>>
>> $string = 'abcdeeeeeefgheeeeijk';
>>
>> I'd like to replace it with something like:
>>
>> 'abcdE=6fghE=4ijk'
>>
>> Is there any way I can get a regexp to return the number of times that a
>> parameter was matched?
>>
>> -Josh J
--
Kevin Eye
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