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Guys,
Seems quiet around here, but hey-ho...hopefully I'll get a response.
OK - I have the following Regex:
^https?://([a-zA-Z0-9-_]*[/\.]{1})*([a-zA-Z]^\.)*(aspx)?
Which I've created using an online regex builder[^]
It's intended to match urls on either www. or local network, with or without a page (.aspx) on the end (so either www.site.com/ or www.site.com/page.aspx). The problem I have is that for all cases it seems to work correctly, until I drop it into my C# / Silverlight app (with the 2 x \ escaped as \\).
The problem is that under the regex builder, a .aspx is fine, a .aspxs is flagged as not matching - which is exactly what I need...however, in c# the aspxs is not flagged as invalid.
I think I can see why - because the s is part of the group, it's permitted - so I'm trying to essentially do an Optional literal string...the ? to make it optional, the brackets to apply to the group...but c# seems to be percieving it more as [aspx]* . If I remove the bracket, then the ? only then applies to the x on the end (as with the s in https at the start)...
Any ideas what I've missed here?
C# has already designed away most of the tedium of C++.
modified on Friday, August 6, 2010 6:33 AM
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A shot in the dark. Try $ (matches end-of-string) at the end of your regex. Maybe one environment assumes it, the other not.
Software rusts. Simon Stephenson, ca 1994.
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By jove I think he's got it!
Good work fella...thanks a lot!
C# has already designed away most of the tedium of C++.
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Hi all,
it must be a small problem that drives me crazy here...
From a text file like the sample given below, the following regular expression extracts the 'Grp' group well, but the 'Entr' group would always be empty. Maybe someone else can see where my error is? Actually, as a final result I'd also like to extract the entrie's name and its value (i.e. befor/after the "=") into different groups. Are any regex experts around who probably see more?
Dim regex = New Regex("\[(?<Grp>.*)\](?<Entr>.*)
is supposed to give me back the groups and entries in an ini-file like structure, no? It seems as if \[ and \] lead to something which I can't find in any reference. Btw I built the regex with Expresso.
' Sample
[Track]
Latitude=N047° 25' 53.4256"
Longitude=W122° 18' 28.7933"
Altitude=+000432.00
[Options]
Titles=False
Sound=True
Pause=False
Thank you very much in advance,
Michael
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Michael,
I guess something is wrong in your post, I see only one double quote, and no MultiLine option. You probably have a conflict with the HTML monster.
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Happy day  ! I could resolve a part of my regex task in Expresso.
For the record and other users: Obviously ".*" for "any character / any number of repetitions" is not good enough to capture a CRLF! Trying to capture it with \r wasn't the right thing either, it took "\r\n" to match the group together with the first line! Here's the current status of the regex:
\[(?<Grp>.*)\]\r\n(?<Keyword>\w+)\s*=\s*(?<Value>.*)\r
The ultimate question would now be:
Of course the first key-value-pair after the group header isn't enough.
How can I include its repetitions into my match now? 
@ Luc: Thanks for the hint. I guess it was more a matter with my own attention monster  that I had here...
@ Admin: Pls excuse me double-posting with the VB forum. This new forum obviously isn't too known yet, so that I had more forwarding answers there before being told to shift my post here...
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Michael,
I'm not really a regex expert, but I would tackle your problem with two regex and two foreach; the first regex would locate groups, the second would parse the key=value pairs within a group. I've never seen this done with a single regex.
BTW: I don't like your \r\n stuff at all. One normally uses the symbols for start-of-line (^) and end-of-lin ($)e, avoiding problems with matching things on the first line and last line (your input may or may not end on \r or \r\n).
FYI: I have some similar regex stuff in my article CP Vanity[^] which scrapes some of the CodeProject web pages. Similiar meaning two regexes, two foreach loops.
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Don't you need to double (escape) the backslashes? This is part of why I wrote my RegexTester[^].
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the OP started with a "Dim", in VB there is no escape mechanism AFAIK.
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 I need sleep. This working for eight hours a day sucks, why do people do it?
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Making tools to help with regular expressions must be fun, because I made one too. Looks kinda like yours.
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As hot as hell.
Those are pretty regular, aren't they?
L u n a t i c F r i n g e
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"Hmmmm... it's never done that before."
L u n a t i c F r i n g e
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You two are in your own little Universe, aren't you? 
Mind if I join you? 
Will Rogers never met me.
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so you decide to butt in?
there actually are a few more expressive regulars, you know.
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Luc Pattyn wrote: expressive regulars
Nice...
Will Rogers never met me.
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yet another new forum. is there a clearance sale going on?
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There must be -- I asked and I received. Now we have to promote it.
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you asked for it. Now what is your question?
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If tin whistles are made of tin, what do they make foghorns out of?
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you have been waiting several years for a regex forum, and when you finally get it, you post a question that does not even belong here?
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I generally don't have such questions, but I like answering responding to them.
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PIEBALDconsult wrote: tin whistles are made of tin
I can another pattern here.
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