regular expression question?

[Leon]

why is the following not correct in asp.net? I'm trying to match all
subdomain names 'leon.domain.co m', but
not 'www.domain.com '?
Dim sdm As Regex

sdm = New Regex (?!www\.)(.*)\. domain\.com

[tom.pesterDeLeTeTHISSS@pandora.be]

Re: regular expression question?


The regex below did work for me. Hope this helps..

Dim re As New Regex("(?!www\. )([^\s]*?)\.domain\.co m")


Dim matches As MatchCollection = re.Matches("zer zaerza rr.domain.com
sfdsqf pp.domain.com ")
Dim match As Match

For Each match In matches
Response.Write( "-" & match.Groups(1) .ToString)
Next


Cheers,
Tom Pester
[color=blue]
> why is the following not correct in asp.net? I'm trying to match all
> subdomain names 'leon.domain.co m', but
> not 'www.domain.com '?
> Dim sdm As Regex
> sdm = New Regex (?!www\.)(.*)\. domain\.com
>[/color]

[Leon]

Re: regular expression question?

what can i do to the following to make work the following way?

the user subdomain = tom.domain.com

Current Context.Items(" Test") Results =
/Testing/Test1.aspx?Cons ultantId=tom/default.aspx

Desired Context.Items(" Test") Results =
/Testing/Test1.aspx?Cons ultantId=tom

how?

*My Current Code....
Dim subdomain As String = Request.Url.ToS tring

Dim sdm As Regex

sdm = New Regex ("http://(?!www\.)(.*)(\ .vipcarsales\.c om)")

Context.Items(" Test") = (sdm.Replace(su bdomain ,
"/Testing/Test1.aspx?Cons ultantId=$1"))



<tom.pesterDeLe TeTHISSS@pandor a.be> wrote in message
news:a1a977a21e 3008c73e3d4a9eb a0c@news.micros oft.com...[color=blue]
>
> The regex below did work for me. Hope this helps..
>
> Dim re As New Regex("(?!www\. )([^\s]*?)\.domain\.co m")
> Dim matches As MatchCollection = re.Matches("zer zaerza
> rr.domain.com sfdsqf pp.domain.com ")
> Dim match As Match
> For Each match In matches
> Response.Write( "-" & match.Groups(1) .ToString)
> Next
>
>
> Cheers,
> Tom Pester
>[color=green]
>> why is the following not correct in asp.net? I'm trying to match all
>> subdomain names 'leon.domain.co m', but
>> not 'www.domain.com '?
>> Dim sdm As Regex
>> sdm = New Regex (?!www\.)(.*)\. domain\.com
>>[/color]
>
>[/color]

[tom.pesterDeLeTeTHISSS@pandora.be]

Re: regular expression question?


The non matching text was appended so I expanded the 2nd group to match everything
that comes after the .com

sdm = New Regex("http://(?!www\.)(.*)(\ .vipcarsales\.c om.*)")

Cheers,
Tom Peste

[Cowboy (Gregory A. Beamer) - MVP]

RE: regular expression question?

I find it easier to start with two question:

1. Is it an URL
2. Does it start with www

The answer is to figure out first if it is an url and then exclude if it has
a match on www. The following is not a final answer, but it will answer the
question you are looking to answer:

//C# version
private static bool IsNonWwwUrl(str ing url)
{
Regex wwwRegex = new Regex(
@"([!www]+\.)+[\w-]+(/[\w- ./?%&=]*)?");
Regex urlRegex = new Regex(
@"([\w-]+\.)+[\\w-]+(/[\w- ./?%&=]*)?");

Return ((urlRegex.IsMa tch(url)&&
(!wwwRegex.IsMa tch(url));
}

'VB.NET answer
Function IsNonWwwUrl(ByR ef url As String) As Boolean
'this one should not match
Dim wwwRegex As New Regex(_
"([!www]+\.)+[\w-]+(/[\w- ./?%&=]*)?")

'this one should match
Dim urlRegex As New Regex(_
"([\w-]+\.)+[\w-]+(/[\w- ./?%&=]*)?")

Return ((urlRegex.IsMa tch(url)) And _
Not wwwRegex.IsMatc h(url)))
End Function

If you want to include the possibility of http:// and https:// you will look
for number of matches rather than match the entire string (this is C# only,
apologies):

private static bool IsNonWwwUrl(str ing url)
{
Regex wwwRegex = new Regex(
@"([!www]+\.)+[\w-]+(/[\w- ./?%&=]*)?");
Regex urlRegex = new Regex(
@"([\w-]+\.)+[\\w-]+(/[\w- ./?%&=]*)?");

if((wwwRegex.Ma tches(url) == 0)&&
(urlRegex.Match es(url) != 0))
return true;
else
return false;
}



--
Gregory A. Beamer
MVP; MCP: +I, SE, SD, DBA

*************** ************
Think Outside the Box!
*************** ************


"Leon" wrote:
[color=blue]
> why is the following not correct in asp.net? I'm trying to match all
> subdomain names 'leon.domain.co m', but
> not 'www.domain.com '?
> Dim sdm As Regex
>
> sdm = New Regex (?!www\.)(.*)\. domain\.com
>
>
>[/color]