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issues getting and regex'ing a url

Hey guys,

I've spent abit of time searching th web and also this group and cant
seem to find a solution to my issue.

Basically i want to get the current url, and then replace http:// with
something else.

Here is the current code.
var current_url = window.document .location;
var re = new RegExp("http://", "g");
if(re.test(curr ent_url)) {

me = current_url.rep lace(re,"http://www.addme.com/");

window.alert("f ound :: " + me + " :: " + current_url);
} else {
window.alert("n ot");
}

if my page was http://ww.google.com 'd get the alert to be:

found :: undefined :: http://www.google.com.

I dont understand why i am getting undefined. When re.test() works.
surely that means the regex is correct. I've used the same code in:
http://www.regular-expressions.info/...ptexample.html .

Cheers for any help guys.

Jan 9 '06 #1
14 2920
VK

daveyand wrote:
Hey guys,

I've spent abit of time searching th web and also this group and cant
seem to find a solution to my issue.

Basically i want to get the current url, and then replace http:// with
something else.


What is the value of manuals if no one bothers to read them? :-))

alert(window.lo cation.protocol );
// gives you "file:" or "http:" or
// wherever you are.

window.location .protocol = "https:";
// view the current page over SSL

Jan 9 '06 #2
hey VK,

Not so sure what you're telling me here, doesnt seem to help my issue
at all. But that is something thats quite useful and might be able to
help me somewhere else in the future.

Lee,

The point of the g, is just test, i couldnt get it to work so i added g
have also tried with i. Its not needed i know that :)

As for your solution, its a weird one, i mean it works. But obviously
i want this to be dynamic, (maybe i should have stated that ???). I've
also tried this, but again doesnt work:

if(re.test(wind ow.content.loca tion)) {

var me = window.content. location.replac e(re,"http://www.addme.com/");
window.alert("f ound :: " + me);
} else {
window.alert("n ot");
}

And once again we get the same thing, me just isnt defined. Although
by rights it should be. Seeing as we get into the logicblock.

But i can see you got it working, i'm just trying to see whats up. Do
i need to chomp or trim the JS like i might have to in perl?

Jan 9 '06 #3
daveyand wrote on 09 jan 2006 in comp.lang.javas cript:
if(re.test(wind ow.content.loca tion)) {

var me =
window.content. location.replac e(re,"http://www.addme.com/");


1 "location" is a short for "location.h ref"

2 what is "content"? use "document"

try:

window.document .location.href. replace(re,"htt p://www.addme.com/");

--
Evertjan.
The Netherlands.
(Please change the x'es to dots in my emailaddress)
Jan 9 '06 #4
doesnt seem to work :(

As for what content is thats a firefox thing. This regex will be used
in a firefox extension. If i just use location i get a chrome:// uri.

Make sense?

Jan 9 '06 #5
daveyand wrote on 09 jan 2006 in comp.lang.javas cript:
doesnt seem to work :(
What does not?
As for what content is thats a firefox thing. This regex will be used
in a firefox extension. If i just use location i get a chrome:// uri.

Make sense?


No.

If you do not quote on usenet, we won't know what you are talking about.

--
Evertjan.
The Netherlands.
(Please change the x'es to dots in my emailaddress)
Jan 9 '06 #6
VK

daveyand wrote:
hey VK,

Not so sure what you're telling me here


I'm telling you that window.location / document.locati on are
pre-divided onto all needed segments - you just need to ask for the
right one(s).

I presumed (obviously wrongly) what you wanted to switch the current
protocol, for that you need window.location .protocol = 'whatever';

If you need just to store whatever follows the protocol (w/o slashes)
like from "http://www.myserver.co m/mypage.html" you want to have
"www.myserver.c om/mypage.html" then in HTTP it's called *pathname* and
the relevant string is
document.locati on.pathname

There are also hash, host, hostname, port, protocol and search for all
possible HTTP URL components.
Studying location.href through RegExp is also possible but has no
practical sense (unless for practice itself).

IMHO

Jan 9 '06 #7
ah so VK,

i could do something like this.

current_site = window.location .pathname;

new_url = "http://www.addme.com/" + current_site;
window.location = new_url;

???

Jan 9 '06 #8
VK

daveyand wrote:
ah so VK,

i could do something like this.

current_site = window.location .pathname;

new_url = "http://www.addme.com/" + current_site;
window.location = new_url;

???
Yes you can. You also can (current_site + 1000) : it all depends on
your objectives :-)

The OP question was: Basically i want to get the current url,
and then replace http:// with something else.


This question is already answered:
var something = myPart + document.locati on.pathname;

If it doesn't do exactly what you want then maybe the OP question was
not full enough?

Jan 9 '06 #9
daveyand wrote:
ah so VK,

i could do something like this.

current_site = window.location .pathname;

new_url = "http://www.addme.com/" + current_site;
window.location = new_url;

???


To see the properties and values of the location object for any page, copy
and paste the following as a single line into the address bar and hit enter
(you can save it as a bookmarklet):

javascript:x=lo cation;t='';for (var p in x){t+=p+': '+x[p]+'\n';}alert(t) ;
Works in Firefox & IE but not Safari 1.0.3 (it may work in later versions).

--
Rob
Jan 9 '06 #10

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