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2 Replies Latest reply on Apr 7, 2014 3:21 PM by 105189be-2199-4fd3-9c9e-a6097048cb7e

Bug with regex? [solved]

105189be-2199-4fd3-9c9e-a6097048cb7e Apr 7, 2014 2:38 PM

Hello,

I have made a regex (it's a little version not entire version of my regex but it doesn't work too) ^[0-9a-z]*(?:@[0-9a-z]*)?$ (Regexper) it can check when a user typing if the email was correctly typed.

on JS it's work proper (only test with it) but in java you can put an infinity of @ without any problem

tested on java:

java version "1.7.0_51"

Java(TM) SE Runtime Environment (build 1.7.0_51-b13)

Java HotSpot(TM) 64-Bit Server VM (build 24.51-b03, mixed mode)

sorry for my poor english

1. Re: Bug with regex?

TPD-Opitz Apr 7, 2014 3:17 PM (in response to 105189be-2199-4fd3-9c9e-a6097048cb7e)

What's the purpose of the first Question mark?

I'd say the correct Regex is ^[0-9a-z]*(@[0-9a-z]*)?$.

on the other hand this regex does not cover all possible valid email addresses since it does not allow for dots and dashes nor special chars in localized domains...

bye
TPD
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2. Re: Bug with regex?

105189be-2199-4fd3-9c9e-a6097048cb7e Apr 7, 2014 3:21 PM (in response to TPD-Opitz)

i have found the issue

i use this code for check when user type in a label if the entered value is OK
http://subversivebytes.wordpress.com/2012/10/09/java-create-custom-regex-jtextfield/

but the code check char by char not the full string

thanks
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