Also, why is the behaviour different when a variable containing the string "\", "x", "4", "1" is placed inside the RHS (substitutes the literal string, \x41), than if the string is hardcoded in (substitutes the character 'A'? Obviously, some interpolation is going on, otherwise you would get the string, "$", "r". So why doesn't it go ahead and interpolate it to the char 'A'?

Then there is my original question, about why it does it in the LHS. But maybe if I understand the above question, I will better understand the answer to this one. Obviously their nature is different, ie, one evaluates regex, and the other doesn't. Perhaps I am having some confusion about whether, \xNN is a regex or not. It is interpolated as a character in the RHS, (when hardcoded in), but other regexes are interpreted literally.

In reply to Re^6: hex code passed from command line is interpreted literally in substitution by Allasso
in thread hex code passed from command line is interpreted literally in substitution by Allasso

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