Re^2: efficient char escape sequence substitution


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Re^2: efficient char escape sequence substitution

by nobull (Friar)

on May 28, 2005 at 07:51 UTC ( [id://461302]=note: print w/replies, xml )

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in reply to Re: efficient char escape sequence substitution
in thread efficient char escape sequence substitution

That doesn't handle wide-character escapes.

In comp.lang.perl.misc I recently offered this solution.

s/(\\[^"\$\@]+)/qq("$1")/eeg;
[download]

Note that's not 100% infalible but AFAIK it's not a security problem and copes with all reasonable strings. It does have the interesting side effect of stripping \$ \" and \@ - but those have no buisness being in most of the sort of strings you'll encounter.

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Re^3: efficient char escape sequence substitution by Roy Johnson (Monsignor) on May 28, 2005 at 21:42 UTC
How wide is a wide character escape? There's no reason that you can't change the quantifier in my regex to accommodate them. I just wasn't aware of any escapes wider than three characters. Caution: Contents may have been coded under pressure.	[reply]
Re^4: efficient char escape sequence substitution by nobull (Friar) on May 28, 2005 at 22:18 UTC
I don't think there's a fixed maximum \N{WHITE SMILING FACE}.	[reply]

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