To avoid the quotemeta problem and allow a bit more flexibility, it might make sense to use qr// as described in Regexp Quote Like Operators. 

my %subs = (
    qr/tag1/ => 'subst1',
    qr/tag2/ => 'subst2',
    ...
);

$str =~ s[$_][$subs{$_}] for keys %subs;

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#11929 First ask yourself `How would I do this without a computer?' Then have the computer do it the same way.

In reply to Re^2: reg. expr. multiple substitutions by kennethk
in thread reg. expr. multiple substitutions by silentius

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