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Re^2: Find pieces of text in a file enclosed by `@` and replace the inside

by McA (Priest)
on Mar 08, 2013 at 12:16 UTC ( [id://1022408]=note: print w/replies, xml ) Need Help??


in reply to Re: Find pieces of text in a file enclosed by `@` and replace the inside
in thread Find pieces of text in a file enclosed by `@` and replace the inside

Hi,

one question to the (very nice) solution: I'm not sure whether I'm right. Is it possible that there are perl bugs in older versions with exactly this kind of substitution pattern: 

s/pattern/ func(bla) /ge;

[download]

I'm just curious. Probably it was in another context. Where are the perl core hackers?

Best regards
McA

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Re^3: Find pieces of text in a file enclosed by `@` and replace the inside
by bart (Canon) on Mar 09, 2013 at 21:27 UTC
    I'm not sure what you mean. But I know that $1 and friends are block scoped, meaning that it's safe, and has always been safe, to nest substitutions provided the inner substitution was in a block.

    Calling a sub is one safe way to achieve that. It also has the added advantage that you don't have to take care of having to escape any unpaired nested braces: the substitution part may look like a code block to us, but it actually isn't.

[reply]

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