RegEx

Support
1

ODeeKers,

Having a little trouble implementing a Regular Expression constraint.

The idea is that the answer to a question must be exactly 6 digits, no
more, no less.

123456 --YES

1234567 --NO

12345 --NO

I figure, a Regular Expression for 6 digits should look like this:
\d{6}

So, the Binding looks like this:

This works as it will not allow 5 digits, it will allow 6 digits, but
it will also allow MORE than 6 digits. 7 digits passes, I think,
because it is matching the first 6 digits and that is all that is
required. However, I also want to exclude anything larger than 6
digits.

What do you think?

thanks,

m0j0

2

I haven't tested this with javarosa, but in general I think this should work:

^\d{6}$

^ and $ are anchors for the beginning and end of text, respectively.

Best,
Adam

··· On Wed, Jun 16, 2010 at 6:17 PM, mojo wrote: > ODeeKers, > > Having a little trouble implementing a Regular Expression constraint. > > The idea is that the answer to a question must be exactly 6 digits, no > more, no less. > > 123456 --YES > > 1234567 --NO > > 12345 --NO > > I figure, a Regular Expression for 6 digits should look like this: > \d{6} > > So, the Binding looks like this: > > required="true()" constraint="regex(., '\d{6}')" jr:constraintMsg="Le > numéro de liaison doit avoir exactement 6 chiffres!" /> > > This works as it will not allow 5 digits, it will allow 6 digits, but > it will also allow MORE than 6 digits. 7 digits passes, I think, > because it is matching the first 6 digits and that is all that is > required. However, I also want to exclude anything larger than 6 > digits. > > What do you think? > > thanks, > > m0j0