Tiago Silveira wrote:
IMHO, using "cat cat?" or even "cat cat? cat??" is so simple that it doesn't justify keeping the old, undocumented, arguably incorrect behavior.
I have a different view on this issue - IMHO treating "?" as "exactly one character" is counterintuitive for people familiar with the use of wildcards: in all popular regular expression languages, and also in DTD/XML world, a single "?" metacharacter means "zero or one", which is probably why the original behavior was introduced (or at least it was more compatible with the use of "?" in other contexts).
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