regex doubts
Fredrik Lundh
fredrik at pythonware.com
Sat Jul 19 15:04:06 EDT 2008
Mr SZ wrote:
> I am taking a string as an input from the user and it should only
> contain the chars:L , M or R
>
> I tried the folllowing in kodos but they are still not perfect:
>
> [^A-K,^N-Q,^S-Z,^0-9]
> [L][M][R]
> [LRM]?L?[LRM]? etc but they do not exactly meet what I need.
>
> For eg: LRLRLRLRLM is ok but LRLRLRNL is not as it has 'N' .like that.
try "[LRM]+$" (an L or an R or an M, one or more times, all the way to
the end of the string).
</F>
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