make char classes robust against input char set size #985
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The lexer spec can mention characters that are not in the input set (e.g. for %7bit or %8bit). In particular, in caseless matching, the caseless class might contain such characters. Make getClassCode() robust against this situation, and ignore such characters when we add transitions. Fixes #974
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In
%caselessmode, char classes can contain characters that are not in the input char set, leading to an exception when we try to look up the class code for such a character.Fixes #974