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

[McA]

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;

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

Best regards
McA

[bart]

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.