First see /o is dead, long live qr//! for the details on the differences between when a regular expression is compiled and sometimes re-used. Second, note that invoking the perl compiler to avoid the use of a qr// value is likely a poor choice because all compilation is complete in that case. Compilation is known to be slow and you're explicitly invoking both perl AND regexp compilation in cases that you may have been able to avoid both. Taking on extra work at runtime is rarely a good strategy for fast code.

In reply to Re: eval string possibilities by diotalevi
in thread eval string possibilities by erix

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