Re^2: efficient char escape sequence substitution

Can you help me understand your regex modifiers?
gee
Where in perldoc can I find an explanation?

Comment on Re^2: efficient char escape sequence substitution

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Re^3: efficient char escape sequence substitution by Roy Johnson (Monsignor) on May 27, 2005 at 23:35 UTC
Documentation. `g` means global replace. `e` means eval the substitution space before substituting it. Repeating the `e` means eval it again. So it starts out looking like the string `qr("\\t")`; after an eval, it looks like `"\t"`, and after a 2nd eval, it's just a tab. (Actually, it may have captured more than just the tab, but anything after the tab is left intact.) Caution: Contents may have been coded under pressure.	[reply] [d/l] [select]

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Re^3: efficient char escape sequence substitution
by Roy Johnson (Monsignor) on May 27, 2005 at 23:35 UTC

Documentation

g means global replace. e means eval the substitution space before substituting it. Repeating the e means eval it again. So it starts out looking like the string qr("\\t"); after an eval, it looks like "\t", and after a 2nd eval, it's just a tab. (Actually, it may have captured more than just the tab, but anything after the tab is left intact.)

Caution: Contents may have been coded under pressure.

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