Question

Possible Duplicate:
Regex for floating point?

I am trying to use the regex.

The valid strings are:

1

11

5

12222222233

1.2

.5

1222.33444

12234.456

0

Invalid Strings are

.

-2

san

2s2

S2S

ssss2ssss

25535535TY

But this regex does not qualify to test multiple dots (.)
such as

1……5,

5..2233

1223…5

This accepts these values as valid string.
Please help me how to fix this issue with reg.

Note, the above validation should be passed.

Answer 1

How about that regex: \d*(\.\d+)?

EDIT

This regex \d*(\.\d+)? will allow empty values too.

The updated version: \d*(\.)?\d+ does not have that issue.

Please note that negative values will not be allowed as \d matches only digits 0..9