Email Regular Expression

I have a regular expression for an email address, but I need
to modify
it.

^([a-zA-Z0-9_.-])+(([a-zA-Z0-9-])+.)+([a-zA-Z0-9]{2,4})+$

The way this is setup, it should work like:
[required][required].[required]

What I need to change about it is:
[required](+[required])[required].[required]

Lemme explain: I want the part in parenthesis to be
optional, however,
if there is something there it must start with a PLUS (+)
and there
must be something between the plus and the  symbol.
Does that make
sense?


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Try this:

^([a-zA-Z0-9_.-])+(+[a-zA-Z0-9]+)*(([a-zA-Z0-9-])+.)+([a-zA-
Z0-9]{2,4})+$

The added portion is

(+[a-zA-Z0-9]+)*

You may need to expand the character class [a-zA-Z0-9] to
allow more
than alpha-numeric characters.

Rick Quatro


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I'm sorry, what I meant was it matches with:

+aa.com

and it should not.

On Aug 21, 12:53 pm, "Rick Quatro"
<rickqua...gmail.com> wrote:
> It should fail because something before the + is
required.
>
> Rick
>
> On 8/21/07, briandichiara <briandichi...gmail.com> wrote:
>
>
>
> > This fails when using this format:
>
> > +...a.com
>
> > I would like for there to be something before the
+
>
> > Thanks in helping me with this.
>
> > On Aug 21, 10:19 am, Rick <rickqua...gmail.com> wrote:
> > > Try this:
>
> > > ^([a-zA-Z0-9_.-])+(+[a-zA-Z0-9]+)*(([a-zA-Z0-9-])+.)+([a-zA-
> > > Z0-9]{2,4})+$
>
> > > The added portion is
>
> > > (+[a-zA-Z0-9]+)*
>
> > > You may need to expand the character class
[a-zA-Z0-9] to allow more
> > > than alpha-numeric characters.
>
> > > Rick Quatro


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Javascript

On Aug 21, 1:06 pm, "Rick Quatro"
<rickqua...gmail.com> wrote:
> It doesn't match for me. I am testing it with
RegexBuddy. What regular
> expressions language are you using? Thanks.
>
> Rick
>
> On 8/21/07, briandichiara <briandichi...gmail.com> wrote:
>
>
>
> > I'm sorry, what I meant was it matches with:
>
> > +...a.com
>
> > and it should not.
>
> > On Aug 21, 12:53 pm, "Rick Quatro"
<rickqua...gmail.com> wrote:
> > > It should fail because something before the +
is required.
>
> > > Rick
>
> > > On 8/21/07, briandichiara
<briandichi...gmail.com> wrote:
>
> > > > This fails when using this format:
>
> > > > +...a.com
>
> > > > I would like for there to be something
before the +
>
> > > > Thanks in helping me with this.
>
> > > > On Aug 21, 10:19 am, Rick
<rickqua...gmail.com> wrote:
> > > > > Try this:
>
> > > > >
^([a-zA-Z0-9_.-])+(+[a-zA-Z0-9]+)*(([a-zA-Z0-9-])+.)+([a-zA-
> > > > > Z0-9]{2,4})+$
>
> > > > > The added portion is
>
> > > > > (+[a-zA-Z0-9]+)*
>
> > > > > You may need to expand the
character class [a-zA-Z0-9] to allow more
> > > > > than alpha-numeric characters.
>
> > > > > Rick Quatro


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You know what, I'm sorry. My mistake. My uploaded file was
an old
version. When I went to upload a new one, it didn't take for
some
reason. It does work. Thanks a bunch!

On Aug 21, 1:48 pm, briandichiara <briandichi...gmail.com> wrote:
> Javascript
>
> On Aug 21, 1:06 pm, "Rick Quatro"
<rickqua...gmail.com> wrote:
>
> > It doesn't match for me. I am testing it with
RegexBuddy. What regular
> > expressions language are you using? Thanks.
>
> > Rick
>
> > On 8/21/07, briandichiara <briandichi...gmail.com> wrote:
>
> > > I'm sorry, what I meant was it matches with:
>
> > > +...a.com
>
> > > and it should not.
>
> > > On Aug 21, 12:53 pm, "Rick Quatro"
<rickqua...gmail.com> wrote:
> > > > It should fail because something before
the + is required.
>
> > > > Rick
>
> > > > On 8/21/07, briandichiara
<briandichi...gmail.com> wrote:
>
> > > > > This fails when using this format:
>
> > > > > +...a.com
>
> > > > > I would like for there to be
something before the +
>
> > > > > Thanks in helping me with this.
>
> > > > > On Aug 21, 10:19 am, Rick
<rickqua...gmail.com> wrote:
> > > > > > Try this:
>
> > > > > >
^([a-zA-Z0-9_.-])+(+[a-zA-Z0-9]+)*(([a-zA-Z0-9-])+.)+([a-zA-
> > > > > > Z0-9]{2,4})+$
>
> > > > > > The added portion is
>
> > > > > > (+[a-zA-Z0-9]+)*
>
> > > > > > You may need to expand the
character class [a-zA-Z0-9] to allow more
> > > > > > than alpha-numeric
characters.
>
> > > > > > Rick Quatro


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This fails when using this format:

+aa.com

I would like for there to be something before the +

Thanks in helping me with this.

On Aug 21, 10:19 am, Rick <rickqua...gmail.com> wrote:
> Try this:
>
> ^([a-zA-Z0-9_.-])+(+[a-zA-Z0-9]+)*(([a-zA-Z0-9-])+.)+([a-zA-
> Z0-9]{2,4})+$
>
> The added portion is
>
> (+[a-zA-Z0-9]+)*
>
> You may need to expand the character class [a-zA-Z0-9]
to allow more
> than alpha-numeric characters.
>
> Rick Quatro


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