substr is always faster than a regex. index is always faster than a regex. Combining the 2, they are faster than a regex. But if you add an if else block or more than 1 index, they start being the same speed as a regex. Regex parsing logic is faster than Perl optree logic. But a regex can never beat memcpy (AKA substr) and strstr (AKA index).

In reply to Re: SUBSTR OR REGEX: WHICH WILL YOU FAVOUR? by bulk88
in thread SUBSTR OR REGEX: WHICH WILL YOU FAVOUR? by Anonymous Monk

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