"Gerhard Häring" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED] > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Matt Good wrote: > > SQLite3 already has a REGEXP function, so you don't need to create your > > own. [...] > > Yes, but SQLite does not include a regular expression engine, and thus > according to the SQLite docs you need to register a REGEXP function in > order to make the REGEXP operator work: > > """ > The REGEXP operator is a special syntax for the regexp() user function. No > regexp() user function is defined by default and so use of the REGEXP > operator will normally result in an error message. If a user-defined > function named "regexp" is defined at run-time, that function will be > called in order to implement the REGEXP operator. > """ >
This is very interesting. So I *could* define my own regexp function that processes not regular expressions, but say, glob-like strings, which are usually much easier for end users to work with (very basic wild-carding where '*' matches one or more characters, and '?' matches any single character - maybe add '#' to match any single digit and '@' to match any single alpha character). -- Paul
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