I guess I think first of the \Q...\E form because I rarely quote things quite like this - more often I'm quoting a fragment inside a larger string.

Precisely because of that though, when reading the code you need to look more carefully at a \Q...\E construct, so quotemeta would have been the better thing to use in this case.

Note that this is a "belt and braces" approach: the quotemeta() isn't actually required for the strings specified, so this is a protection against future changes to the apparently constant data (and relatively unlikely changes as well, since I can't think of any languages that use regexp metacharacters in their names for the days of the week).

Hugo