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Posted to user@struts.apache.org by Ashish Kulkarni <ku...@yahoo.com> on 2003/03/06 01:48:52 UTC

[OT] need help in regex expression

Hi,

I have to validate a double field, which can be
negative or positive, has max 4 digits in integer and
max 2 digits after decimal, 
I have the following regex which handles some cases
but need help to make it work in all casses

\b[\d]?[\d]?[\d]?[\d]?\b[\.,]?[\d]?[\d]?
it works in
1234.56
123.45
2334
0.34
but does not work 
.34

and also i want it work for
-123.45
+234.45

Can any one suggest a way to modify expression or
write it in better way

Ashish



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Re: [OT] need help in regex expression

Posted by alexj <al...@freesurf.ch>.
rhoo 2 max decimal 

[+-][0-9]{0-9}("."2{0-9})
----- Original Message ----- 
From: "alexj" <al...@freesurf.ch>
To: "Struts Users Mailing List" <st...@jakarta.apache.org>
Sent: Thursday, March 06, 2003 1:59 AM
Subject: Re: [OT] need help in regex expression


> ----- Original Message ----- 
> From: "Ashish Kulkarni" <ku...@yahoo.com>
> To: <st...@jakarta.apache.org>
> Sent: Thursday, March 06, 2003 1:48 AM
> Subject: [OT] need help in regex expression
> 
> 
> > Hi,
> > 
> > I have to validate a double field, which can be
> > negative or positive, has max 4 digits in integer and
> > max 2 digits after decimal, 
> > I have the following regex which handles some cases
> > but need help to make it work in all casses
> > 
> > \b[\d]?[\d]?[\d]?[\d]?\b[\.,]?[\d]?[\d]?
> > it works in
> > 1234.56
> > 123.45
> > 2334
> > 0.34
> > but does not work 
> > .34
> > 
> > and also i want it work for
> > -123.45
> > +234.45
> > 
> > Can any one suggest a way to modify expression or
> > write it in better way
> > 
> > Ashish
> > 
> > 
> > 
> > __________________________________________________
> > Do you Yahoo!?
> > Yahoo! Tax Center - forms, calculators, tips, more
> > http://taxes.yahoo.com/
> > 
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: struts-user-unsubscribe@jakarta.apache.org
> > For additional commands, e-mail: struts-user-help@jakarta.apache.org
> > 
> 
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> 

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Re: [OT] need help in regex expression

Posted by alexj <al...@freesurf.ch>.
[+-][0-9]{0-9}("."{0-9})----- Original Message ----- 
From: "Ashish Kulkarni" <ku...@yahoo.com>
To: <st...@jakarta.apache.org>
Sent: Thursday, March 06, 2003 1:48 AM
Subject: [OT] need help in regex expression


> Hi,
> 
> I have to validate a double field, which can be
> negative or positive, has max 4 digits in integer and
> max 2 digits after decimal, 
> I have the following regex which handles some cases
> but need help to make it work in all casses
> 
> \b[\d]?[\d]?[\d]?[\d]?\b[\.,]?[\d]?[\d]?
> it works in
> 1234.56
> 123.45
> 2334
> 0.34
> but does not work 
> .34
> 
> and also i want it work for
> -123.45
> +234.45
> 
> Can any one suggest a way to modify expression or
> write it in better way
> 
> Ashish
> 
> 
> 
> __________________________________________________
> Do you Yahoo!?
> Yahoo! Tax Center - forms, calculators, tips, more
> http://taxes.yahoo.com/
> 
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: struts-user-unsubscribe@jakarta.apache.org
> For additional commands, e-mail: struts-user-help@jakarta.apache.org
> 

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Re: [OT] need help in regex expression

Posted by Jeff Kyser <kt...@comcast.net>.
try something like: ^([+-])?(\d){0,4}(.(\d){0,2})?$

-jeff

On Wednesday, March 5, 2003, at 06:48  PM, Ashish Kulkarni wrote:

> Hi,
>
> I have to validate a double field, which can be
> negative or positive, has max 4 digits in integer and
> max 2 digits after decimal,
> I have the following regex which handles some cases
> but need help to make it work in all casses
>
> \b[\d]?[\d]?[\d]?[\d]?\b[\.,]?[\d]?[\d]?
> it works in
> 1234.56
> 123.45
> 2334
> 0.34
> but does not work
> .34
>
> and also i want it work for
> -123.45
> +234.45
>
> Can any one suggest a way to modify expression or
> write it in better way
>
> Ashish
>
>
>
> __________________________________________________
> Do you Yahoo!?
> Yahoo! Tax Center - forms, calculators, tips, more
> http://taxes.yahoo.com/
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: struts-user-unsubscribe@jakarta.apache.org
> For additional commands, e-mail: struts-user-help@jakarta.apache.org
>


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