Re: Regular expression not working as expected (documented)?

[Christian Hammers]

On 2006-11-08 Leandro Guimarães Faria Corcete DUTRA wrote:
>         u.login REGEXP
> '^wa[bhkl][_[.period.]-acegmnopqrsuvwxyz]{1,5}[14Lt][23890IJOQ].*'
...
> But I get, among otherss, a string beginning with 'walt' (several, in fact).

Probably MySQL don't know about this "[.period.]" thing and just takes the "." in it
as "any char", e.g. your "t" from "walt".

Try '^wa[bhkl][-_acegmnopqrsuvwxyz]{1,5}[14Lt][23890IJOQ].*', if there is a "-" at the
beginning of a character class it is usually threaten literally as it makes no sense
as "from..to" separator in those cases.

bye,

-christian-