Re^5: reg. expr. multiple substitutions

I wasn't talking about performance. If you are going to re-interpolate a qr// compiled regex, whatever escapaing might be required had you not used qr//, would still be required. Either manually, or via quotemeta. Ergo, the qr// would buy you nothing.

With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.

"Science is about questioning the status quo. Questioning authority".

In the absence of evidence, opinion is indistinguishable from prejudice.

The start of some sanity?

Comment on Re^5: reg. expr. multiple substitutions

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Re^6: reg. expr. multiple substitutions by dave_the_m (Monsignor) on May 17, 2012 at 16:01 UTC
whatever escapaing might be required had you not used qr//, would still be required Not completely. First off, if a regex $r is used as the only part of a pattern in /$r/ or s/$r/../, then it is not interpolated, but used as is. Secondly, by using a regex literal rather than a string literal, you get backslashed things handled right: `$r = qr/\bfoo/; /$r/; # matches word boundary $r = "\bfoo"; /$r/; # matches backspace` [download] (Although this is mostly moot, since as was pointed out elsewhere, hash keys are stored as strings.) Dave.	[reply] [d/l]
Re^7: reg. expr. multiple substitutions by BrowserUk (Patriarch) on May 17, 2012 at 16:06 UTC
if a regex $r is used as the only* part of a pattern in /$r/ or s/$r/../, then it is not interpolated, but used as is.* That's information that I've never seen written down before. Thank you. With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday' Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error. "Science is about questioning the status quo. Questioning authority". In the absence of evidence, opinion is indistinguishable from prejudice. The start of some sanity?	[reply]