how do i find a string between 2 delimiters please

Phil

hello

I am a trying to find the text between a ? mark and an = sign:
var theData;
var begin;
var thePageNo;
var beginFrom;
beginFrom = top.location.href.indexOf("=");
begin = top.location.href.indexOf("?");
if (begin > 0 )
{
theData = top.location.href.substring(begin+1,location.href. length);
theData = unescape(theData);
..........
--
what I need to do is pass the filename without the + sign and whatever
follows it.

So if the string passed is:
http://philippeoget.50megs.com/?IT_S...rmation.htm=13

I want to be able retrieve only the string up and including the = sign.
ie.: http://philippeoget.50megs.com/?IT_S...nformation.htm

I tried:
theData = top.location.href.substring(begin+1,location.href. length-beginFrom);

but it doesn't like it..

TIA
Regards

Phil

Jul 23 '05 #1

Subscribe Post Reply

3365

kaeli

In article <f6**************************@posting.google.com >,
ph**********@yahoo.com enlightened us with...

hello

I am a trying to find the text between a ? mark and an = sign:
var theData;
var begin;
var thePageNo;
var beginFrom;
beginFrom = top.location.href.indexOf("=");
begin = top.location.href.indexOf("?");
if (begin > 0 )
{
theData = top.location.href.substring(begin+1,location.href. length);
theData = unescape(theData);
.........

This worked for me. It's extensible so the URL can have more params. It
assumes the one you want is the first part of the first pair ([0]).

<html>
<head>
<title> New Document </title>
</head>

<body>
<script language="javascript" type="text/javascript">
// split the query string into param=val pieces
var qs = location.search.substr(location.search.indexOf("?" )+1);
var pieces = qs.split("&"); // pieces has all the name/value pairs

var piece = null;
if (typeof pieces[0] != "undefined") piece = pieces[0].split("="); //
piece has individual name/values for pieces[0]

if (typeof piece[0] != "undefined") url = self.location.href+piece[0];
alert(url);
</script>
</body>
</html>

--
--
~kaeli~
Shotgun wedding: A case of wife or death.
http://www.ipwebdesign.net/wildAtHeart
http://www.ipwebdesign.net/kaelisSpace

Jul 23 '05 #2

Philippe Oget

Regards

Philippe
http://uk.geocities.com/philippeoget/

*** Sent via Developersdex http://www.developersdex.com ***
Don't just participate in USENET...get rewarded for it!

Jul 23 '05 #3

Shawn Milo

<snip>

So if the string passed is:
http://philippeoget.50megs.com/?IT_S...rmation.htm=13

I want to be able retrieve only the string up and including the = sign.
ie.: http://philippeoget.50megs.com/?IT_S...nformation.htm

I tried:
theData = top.location.href.substring(begin+1,location.href. length-beginFrom);

but it doesn't like it..

TIA
Regards

Phil

The easiest way to do this is with a regular expression.

I just wrote and tested this:

var someString =
'http://philippeoget.50megs.com/?IT_Study___Information.htm=13';

document.write(someString + '<br/>');
someString = someString.replace(/^.*\?(.*)=.*$/, '$1');
document.write(someString + '<br/>');

Shawn

Jul 23 '05 #4

Shawn Milo

Phil,

Although my last post provided a working solution,
I realized that there is a flaw in my logic. I was
assuming that only one name/value pair will ever
be passed in the querystring. Please see below
for a correction.

For regex (regular expression) info, this
book is the best source:
http://www.oreilly.com/catalog/regex2/

Shawn

var someString =
'http://philippeoget.50megs.com/?IT_Study___Information.htm=13';

//altered to further illustrate regex
someString =
'http://philippeoget.50megs.com/?IT_Study___Information.htm=13&lang=en';
//show original string
document.write(someString + '<br/>');

//perform replace
someString = someString.replace(/^.*\?(.*)=.*$/, '$1');

//show altered string
document.write(someString + '<br/>');
//
someString = '';
//someString = 'http://www.abc.com?page=it_study&lang=en';

//Note, this regex will work when there are more parameteres
//in the querystring than just one. The other one will not.
//Example:
http://philippeoget.50megs.com/?IT_S...htm=13&lang=en
//The previous regex will return:
IT_Study___Information.htm=13&lang
//This one will return: IT_Study___Information.htm

someString = someString.replace(/^.*\?([^=]*)=.*$/, '$1');
document.write(someString + '<br/>');

Jul 23 '05 #5

Philippe Oget

Thank you very much for your help.

Regards

Philippe
http://uk.geocities.com/philippeoget/

*** Sent via Developersdex http://www.developersdex.com ***
Don't just participate in USENET...get rewarded for it!

Jul 23 '05 #6

by: Justin L. Kennedy | last post by:

I am looking for a function that takes in a string and splits it using a list of other strings (delimiters) and can return the delimiters as well as the extra parts of the string. I was trying the...

PHP

Converting byte array to string.

by: Prabhu | last post by:

Hi, We are having problem in converting a byte array to string, The byte array has char(174), char(175), char(240), char(242) and char(247) as delimiters for the message. when we use...

C# / C Sharp

String.Split versus Strings.Split

by: kurt sune | last post by:

The code: Dim aLine As String = "cat" & vbNewLine & "dog" & vbNewLine & "fox" & vbNewLine Dim csvColumns1 As String() = aLine.Split(vbNewLine, vbCr, vbLf) Dim csvColumns2 As String() =...

Visual Basic .NET

tokezing a string

by: Amit Gupta | last post by:

Hi - I get a seg-fault when I compile and run this simple program. (seg-fault in first call to strtok). Any clues? My gcc is "gcc version 4.1.1 20070105 (Red Hat 4.1.1-51)" #include...

C / C++

Find Delimiter that split string when multiple delimiters are defined

by: vang | last post by:

How do I find out which delimiter if found/used when splitting a string with multiple delimiters are defined in a char array? Example: dim i as integer dim returnText as string dim InputText...

Visual Basic .NET

CS Student need help with debugging string program

by: nnguyec | last post by:

Hi, I'm trying to write a small code for an assignment which the void String Tokenizer will get a line input, and take out those delimiters from the original string. Then pass each string without the...

C / C++

strtok as string replace function problem ?

by: Lothar Behrens | last post by:

Hi, I have selected strtok to be used in my string replacement function. But I lost the last token, if there is one. This string would be replaced select "name", "vorname", "userid",...

C / C++

problem with removing spaces in the string

by: ramu | last post by:

Hi, Suppose I have a string like this: "I have a string \"and a inner string\\\" I want to remove space in this string but not in the inner string" In the above string I have to remove...

C / C++

Detecting NewLine characters in a string.

by: alex21 | last post by:

I am trying to write a function for determining the data type of columns in a delimited file. However my function is not detecting a newline and exiting the loop after the end of the first line. ...

Visual Basic .NET

Navigating the Data Structures and Algorithms (DSA)

by: BarryA | last post by:

What are the essential steps and strategies outlined in the Data Structures and Algorithms (DSA) roadmap for aspiring data scientists? How can individuals effectively utilize this roadmap to progress...

Algorithms / Advanced Math

Is that possible of reading the .csv file in column wise and the column have different lengths ?

by: Sonnysonu | last post by:

This is the data of csv file 1 2 3 1 2 3 1 2 3 1 2 3 2 3 2 3 3 the lengths should be different i have to store the data by column-wise with in the specific length. suppose the i have to...

C / C++

How to build RAID in BIOS?

by: Hystou | last post by:

There are some requirements for setting up RAID: 1. The motherboard and BIOS support RAID configuration. 2. The motherboard has 2 or more available SATA protocol SSD/HDD slots (including MSATA, M.2...

Computer Hardware

What is ONU?

by: marktang | last post by:

ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However,...

General

Changing the language in Windows 10

by: Hystou | last post by:

Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can...

Windows Server

Problem With Comparison Operator <=> in G++

by: Oralloy | last post by:

Hello folks, I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>". The problem is that using the GNU compilers,...

C / C++

Maximizing Business Potential: The Nexus of Website Design and Digital Marketing

by: jinu1996 | last post by:

In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven...

Online Marketing

Discussion: How does Zigbee compare with other wireless protocols in smart home applications?

by: tracyyun | last post by:

Dear forum friends, With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each...

General

AI Job Threat for Devs

by: agi2029 | last post by:

Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing,...

Career Advice

how do i find a string between 2 delimiters please

Similar topics