regex for unsigned decimal

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can any body please tell me the regex for an unsigned decimal
[+-]18 digits + . + 4 digits
eg.
111111111111111111.2222
or
-111111111111111111.2222

18 is the maximum digit preecing decimal it may be less than that.

Posted 7-Jan-13 2:46am

souravghosh18

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2 solutions

Solution 1

Hi,
try the following

^\d{1,18}$

Posted 7-Jan-13 2:47am

Vlad-Dragos

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**Zoltán Zörgő** · Accepted Answer · 2013-01-07T03:11:00

Solution 2

^[+-]?\d{1,18}\.\d{4}$ for exactly what you specified, or ^[+-]?\d{1,18}(\.\d{1,4})?$ for a little more flexibility.

Posted 7-Jan-13 3:11am

Zoltán Zörgő

v2

Comments

ridoy 7-Jan-13 9:14am

+5

Zoltán Zörgő 7-Jan-13 9:27am

Thank you

souravghosh18 7-Jan-13 11:54am

thanks for your reply.