s///g won't search replaced text, as shown in the following snippet:

$search_for = '[string]';
$user       = '[user]';

local $_ = 'foo [string] bar [string] baz';


s/(\Q$search_for\E)/__${user}__${1}__/g;


print("$_\n");
# foo __[user]__[string]__ bar __[user]__[string]__ baz

[download]

You can use s///ge if you need to generate $user dynamically for each match.

In reply to Re: Regex help by ikegami
in thread Regex help by snacktime

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