Re: [Flashcoders] RegExp Help
This is great - thanks for explaining, helps a lot. the original expression I posted works this tool : http://gskinner.com/RegExr I would love to know what magic Grant is using to get it working in his RegExp utility. Thank you Anthony. On 11 Mar 2011, at 23:42, Anthony Pace wrote: Hi Karim and Ktu, Below is an explanation of what appears to be going on in the given pattern: (?:\s*) is a greedy non-capturing group of whitespace (?=[-|/]) is looking behind the next section of the expression, (?name\w*), for, what is in this case, a character set; as well, it does so without including it in the result. In this case the character set could also be written without the |, resulting in [-/] (?name\w*) is looking for name\w*, before the next expression [:|=] you may have wanted (?Pname\w*) [:|=] is a character set : or =, but again does not need the |, and could be [:=] or something like (?::|=) (((?value.*?)(?!\\))|(?value[\w]*)) is what I think you may have wanted to be an alternation, and in another language it would have worked; however, not in AS3. Apparently in AS3 in order to distinguish the syntax from a lookbehind ? you need to use the syntax ?PdesiredGroupName when defining a named group; as well, it is due to the fact that, as far as I know, in AS3 you cannot use names of the same group even a logical OR alternation. On 3/11/2011 2:37 PM, Ktu wrote: I just plugged it into RegExrhttp://www.regexr.com and I can't make sense of it. Try using that tool to build it. It really helps On Fri, Mar 11, 2011 at 5:56 AM, Karim Beyroutika...@kurst.co.uk wrote: Hello lovely list...I am trying to run a RegExp pattern on a String, and am not too sure why it's not working, and am not too sure why. Here is the code: var tStr: String= '/a:value -big=this -test:123 -test2=th_3' var r : RegExp= new RegExp( '(?:\s*)(?=[-|/])(?name\w*)[:|=](((?value.*?)(?!\\))|(?value[\w]*))'); var result : Object= r.exec( str ); result returns null... Maybe you can shed some light on what i am doing wrong here? Thanks... Karim ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
Re: [Flashcoders] RegExp Help
I seem to be having some mixed results with this one:
var tStr: String = '-path:c:\test path\temp -param spaced string -x'
var patt: RegExp = new RegExp(
'(?=[-{1,2}|/])(?Pname[a-zA-Z0-9]*)(?::|=)*(?Pvalue[\w|.|?|=||+|
|:|/|\\]*)(?=[ |]|$)' , 'g');
var result : Object = patt.exec(tStr );
As it currently stands - it's not picking up Pvalue properly. it seems to be
working in Grants RegExp tool. But am having issues picking up the groups in my
code.
This is my first attempt with RegExp, I guess it's not the easiest start.
Maybe it would be better to write a parser for this one, but am curious to know
if it can be done with AS3 RegExp.
Cheers
Karim
On 13 Mar 2011, at 09:27, Karim Beyrouti wrote:
This is great - thanks for explaining, helps a lot.
the original expression I posted works this tool : http://gskinner.com/RegExr
I would love to know what magic Grant is using to get it working in his
RegExp utility.
Thank you Anthony.
On 11 Mar 2011, at 23:42, Anthony Pace wrote:
Hi Karim and Ktu,
Below is an explanation of what appears to be going on in the given pattern:
(?:\s*)
is a greedy non-capturing group of whitespace
(?=[-|/])
is looking behind the next section of the expression, (?name\w*),
for, what is in this case, a character set; as well, it does so
without including it in the result. In this case the character
set could also be written without the |, resulting in [-/]
(?name\w*)
is looking for name\w*, before the next expression [:|=]
you may have wanted (?Pname\w*)
[:|=]
is a character set : or =, but again does not need the |,
and could be [:=] or something like (?::|=)
(((?value.*?)(?!\\))|(?value[\w]*))
is what I think you may have wanted to be an alternation,
and in another language it would have worked; however, not in AS3.
Apparently in AS3 in order to distinguish the syntax from a
lookbehind ? you need to use the syntax ?PdesiredGroupName
when defining a named group; as well, it is due to the fact that,
as far as I know, in AS3 you cannot use names of the same group
even a logical OR alternation.
On 3/11/2011 2:37 PM, Ktu wrote:
I just plugged it into RegExrhttp://www.regexr.com and I can't make sense
of it.
Try using that tool to build it. It really helps
On Fri, Mar 11, 2011 at 5:56 AM, Karim Beyroutika...@kurst.co.uk wrote:
Hello lovely list...I am trying to run a RegExp pattern on a String, and am
not too sure why it's not working, and am not too sure why.
Here is the code:
var tStr: String= '/a:value -big=this -test:123
-test2=th_3'
var r : RegExp= new RegExp(
'(?:\s*)(?=[-|/])(?name\w*)[:|=](((?value.*?)(?!\\))|(?value[\w]*))');
var result : Object= r.exec( str );
result returns null... Maybe you can shed some light on what i am doing
wrong here?
Thanks...
Karim
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[Flashcoders] RegExp Help
Hello lovely list...I am trying to run a RegExp pattern on a String, and am not too sure why it's not working, and am not too sure why. Here is the code: var tStr: String= '/a:value -big=this -test:123 -test2=th_3' var r : RegExp= new RegExp( '(?:\s*)(?=[-|/])(?name\w*)[:|=](((?value.*?)(?!\\))|(?value[\w]*))'); var result : Object= r.exec( str ); result returns null... Maybe you can shed some light on what i am doing wrong here? Thanks... Karim ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
Re: [Flashcoders] RegExp Help
I just plugged it into RegExr http://www.regexr.com and I can't make sense of it. Try using that tool to build it. It really helps On Fri, Mar 11, 2011 at 5:56 AM, Karim Beyrouti ka...@kurst.co.uk wrote: Hello lovely list...I am trying to run a RegExp pattern on a String, and am not too sure why it's not working, and am not too sure why. Here is the code: var tStr: String= '/a:value -big=this -test:123 -test2=th_3' var r : RegExp= new RegExp( '(?:\s*)(?=[-|/])(?name\w*)[:|=](((?value.*?)(?!\\))|(?value[\w]*))'); var result : Object= r.exec( str ); result returns null... Maybe you can shed some light on what i am doing wrong here? Thanks... Karim ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders -- Ktu; The information contained in this message may be privileged and/or confidential. If you are NOT the intended recipient, please notify the sender immediately and destroy this message. ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
Re: [Flashcoders] RegExp Help
Hi Karim and Ktu, Below is an explanation of what appears to be going on in the given pattern: (?:\s*) is a greedy non-capturing group of whitespace (?=[-|/]) is looking behind the next section of the expression, (?name\w*), for, what is in this case, a character set; as well, it does so without including it in the result. In this case the character set could also be written without the |, resulting in [-/] (?name\w*) is looking for name\w*, before the next expression [:|=] you may have wanted (?Pname\w*) [:|=] is a character set : or =, but again does not need the |, and could be [:=] or something like (?::|=) (((?value.*?)(?!\\))|(?value[\w]*)) is what I think you may have wanted to be an alternation, and in another language it would have worked; however, not in AS3. Apparently in AS3 in order to distinguish the syntax from a lookbehind ? you need to use the syntax ?PdesiredGroupName when defining a named group; as well, it is due to the fact that, as far as I know, in AS3 you cannot use names of the same group even a logical OR alternation. On 3/11/2011 2:37 PM, Ktu wrote: I just plugged it into RegExrhttp://www.regexr.com and I can't make sense of it. Try using that tool to build it. It really helps On Fri, Mar 11, 2011 at 5:56 AM, Karim Beyroutika...@kurst.co.uk wrote: Hello lovely list...I am trying to run a RegExp pattern on a String, and am not too sure why it's not working, and am not too sure why. Here is the code: var tStr: String= '/a:value -big=this -test:123 -test2=th_3' var r : RegExp= new RegExp( '(?:\s*)(?=[-|/])(?name\w*)[:|=](((?value.*?)(?!\\))|(?value[\w]*))'); var result : Object= r.exec( str ); result returns null... Maybe you can shed some light on what i am doing wrong here? Thanks... Karim ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
