regular expresion remember matches

[Jeff]

I always have trouble with javascript regexes...

I want to parse apart a string and remember the matches and use them
elswhere.

Say I have:

var test_string='one_two-three';

In perl I would do this;

if($test_string=~/(.*)_(.*)-(.*)/){
print $2;
}

I'm not sure how to do this in javascript. Does $1 only work in the
replace function????

Jeff

[-Lost]

Jeff wrote:

I always have trouble with javascript regexes...

I want to parse apart a string and remember the matches and use them
elswhere.

Say I have:

var test_string='one_two-three';

In perl I would do this;

if($test_string=~/(.*)_(.*)-(.*)/){
print $2;
}

I'm not sure how to do this in javascript. Does $1 only work in the
replace function????

Um... I suck at Regular Expressions (always have). But maybe:

http://www.hunlock.com/blogs/An_Intr..._in_Javascript

http://www.regular-expressions.info/javascript.html

http://devedge-temp.mozilla.org/libr...de/regexp.html

http://www.evolt.org/node/36435

....can be of some assistance. Otherwise, just wait, someone will be
alone momentarily with your regexp.

Ah what the hell... I'll throw up a regular expression (which is sure to
be corrected/flawed):

var test_string = 'one_two-three';
var _regexp = /(\w+)_(\w+)-(\w+)/;
alert(test_string.replace(_regexp, '$2'))

That is basically the exact same thing you have. I am sure regexp gurus
can offer a better solution though, both in your example and mine.

--
-Lost
Remove the extra words to reply by e-mail. Don't e-mail me. I am
kidding. No I am not.

[scripts.contact]

On May 12, 9:29 pm, Jeff <[e-mail]:

I want to parse apart a string and remember the matches and use them
elswhere.

Use match method:
http://www.devarticles.com/c/a/JavaS...-JavaScript/6/
http://msdn2.microsoft.com/en-us/library/7df7sf4x.aspx

var test_string='one_two-three';
if($test_string=~/(.*)_(.*)-(.*)/){
print $2;
}

I'm not sure how to do this in javascript.

var test_string='one_two-three',x;
if(x=test_string.match(/(.*)_(.*)-(.*)/)){
alert(x[2])
}

[Jeff]

scripts.contact wrote:

On May 12, 9:29 pm, Jeff <[e-mail]:

>>I want to parse apart a string and remember the matches and use them
elswhere.

Use match method:
http://www.devarticles.com/c/a/JavaS...-JavaScript/6/
http://msdn2.microsoft.com/en-us/library/7df7sf4x.aspx

>>var test_string='one_two-three';
if($test_string=~/(.*)_(.*)-(.*)/){
print $2;
}

I'm not sure how to do this in javascript.

var test_string='one_two-three',x;

What's with the ,x? Is that like doing this:

var test_string='one_two-three';
var x;

if(x=test_string.match(/(.*)_(.*)-(.*)/)){
alert(x[2])

Ahhh! Thanks!

OT. Is Martin Honnen still around?

Jeff

}

[scripts.contact]

On May 12, 9:50 pm, -Lost <[e-mail]:

http://www.hunlock.com/blogs/An_Intr..._Expressions_i...
http://www.regular-expressions.info/javascript.html
http://devedge-temp.mozilla.org/libr...vascript/1.5/g...
http://www.evolt.org/node/36435

And:
http://msdn.microsoft.com/library/de...63906a7353.asp

[-Lost]

Jeff wrote:

OT. Is Martin Honnen still around?

I don't know about right this moment, but yeah, he's around.

--
-Lost
Remove the extra words to reply by e-mail. Don't e-mail me. I am
kidding. No I am not.

[Randy Webb]

Jeff said the following on 5/13/2007 12:07 AM:

scripts.contact wrote:

<snip>

>>
var test_string='one_two-three',x;

What's with the ,x? Is that like doing this:

var test_string='one_two-three';
var x;

Yes, it is the same thing.

> if(x=test_string.match(/(.*)_(.*)-(.*)/)){
alert(x[2])

Ahhh! Thanks!

OT. Is Martin Honnen still around?

Yes, you just don't see him as much anymore as you used to.

--
Randy
Chance Favors The Prepared Mind
comp.lang.javascript FAQ - http://jibbering.com/faq/index.html
Javascript Best Practices - http://www.JavascriptToolbox.com/bestpractices/