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in reply to Re^5: 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 Bart, sorry for my late response. But can you show me how to do the option with "@@"? Thanks a lot!

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Re^7: Find pieces of text in a file enclosed by `@` and replace the inside
by bart (Canon) on Mar 30, 2013 at 08:34 UTC
    Well I was thinking something along these lines:
    s<\@(.*?)\@>{ length $1 ? subst($1) : '@' }ge;
    Whether this is sufficient depends on whether the string it matches and replaces, must be able to contain a '@'. Well, you can write strings like "blah blah @foo@@@@bar@ blah" where both "foo" and "bar will get the special treatment, and the "@@" in the middle of the quadruple will be replaced by a single "@". I guess that will probably suffice.