Re: Extracting the number of %'s in a string

To count them,

$_=q(aaa%bbbbb%cccccc%ddd);
print tr/%//, $/;
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prints '3'

To extract their positions;

$_ = 'aaa%bbbbb%cccccc%ddd';
print $-[0], ' ' while /%/g;
print $/'
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prints "3 9 16".

See perlvar for the @- array magic. You would push those values to an array, instead of printing, for further use.

After Compline,
Zaxo

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Re^2: Extracting the number of %'s in a string by moritz (Cardinal) on Dec 13, 2007 at 10:08 UTC
The counting solution will give a wrong result if the string has a trailing `%`, because the OP wants the number of `%`s followed by another character.	[reply] [d/l] [select]