Benno Schulenberg 2181853574 syntaxes: use character classes instead of range expressions ...

In some locales certain normal ASCII characters are not included in
the ranges [A-Z] and [a-z].  So, use [[:upper:]] and [[:lower:]]
instead, and [[:alpha:]] for [A-Za-z], and similarly for others.

This fixes https://savannah.gnu.org/bugs/?67094.

2025-05-08 10:24:49 +02:00

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