Extract Digits With Regular Expression?

Jun 4, 2011

I have the following string "d3-23-76-546"

I'm looking for a regular expression that will match everything in this string before 546 so that I can replace it with an empty string and just be left with 546. The string could be of any length and contain any number of hyphens.

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Extracting Digits With Regular Expression?

Jun 4, 2011

I have the following string "d3-23-76-546"

I'm looking for a regular expression that will match everything in this string before 546 so that I can replace it with an empty string and just be left with 546. The string could be of any length and contain any number of hyphens.

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Regular Expression :: Allow 1,2 Or 3 Digits Before Decimal Point

Jun 8, 2006

I wrote a regex to edit a decimal number. you're allowed 1,2, or 3
digits before the decimal point, and 0,1,2,or 3digits after the decimal
point. Of course, you can't enter a decimal point without at least a
digit after ("5." is invalid). So here is my regex

pattern=/^d{1,3}(.(?=d))d{0,3}$/

This works fine for every case except an integer. In other words, it
tests false for entering 5, or 567.

I don't see why it tests false for integers. I'm allowing 1-3 digits
before the decimal point, then a decimal point only if the next
character is a digit (the lookahead clause), and then 0-3 digits after
the decimal point.

I've gotten around this problem with other javascript code around
the regex, but I'd just like to know why this "clean" solution doesn't
work.

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What Regular Expression Will Match ANY String That Has 10 Digits In It

Jan 13, 2009

What regular expression will match ANY string that has 10 digits in it?

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Jun 14, 2010

It is validating every thing expect YEAR. It only matches first 2 digits for year instead of 4. I want it to be 4 digits for a year. It returns true if I put 12/25/19.I want it to return false for the above date.

[Code]...

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Extract An Integer Using Regular Expression?

Jun 4, 2011

I have a string like this "d2-23-543-56". It could be of any length, have any number of hyphens and will always end with an integer. I'm trying to come up with a regular expression that will match everything up to and including the last hyphen so that I can replace it with an empty string and have only the 56 left over, or whatever integer happens to be at the end of the string

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Regular Expression :: Extract Only Numbers From An HTML Page

Jul 23, 2005

I'm looking to use Javascript to pull apart a page of HTML I have
already fetched. The page contains a table, within which there are rows
containing...

Either:

0000000 - 0000000<some html>00<some html>0

or:

0000000 - 0000000<some html>00 - 00<some html>0

I'm interested in extracting only the numbers (which may not always be
0!), in each case. I bet this can be done using a regular expression (or
two). Can anyone help?

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?: In Regular Expression

Feb 21, 2006

I have seen lot of reg. expession with ?:
For dummy eg
(((XXX)ddd)ff)

The above expression is modified as
(?:(?:(XXX)ddd)ff)

Although both the above expr. gives same result. (RegExp.match() gives
same o/p), most of the places , i have seen second option.

Yes, but different matches r shown (using RegExp.exec())

Is the second expr. most efficient or in particular scenarios?

Any comments???

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Regular Expression Problems

Jun 28, 2006

At the moment my code is like:

function telValid(inString) {
var regexp = /^[0-9 +()]+$/;
return (inString.match(regexp,''));
}

which is use to validate phone numbers (UK at the moment)

this works ok, but wont allow - (Dashes) which i need..

tried doing:

function telValid(inString) {
var regexp = /^[0-9 +-()]+$/;
return (inString.match(regexp,''));
}

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Jan 20, 2007

I am finding it difficult to find a regular expression for following situation(replace)

a b c d = a,b,c d
a b c = a,b c

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Feb 5, 2009

regular express to get the file name from a URL?

It has to be flexible in that the extension can be either 4, 5, or 6 chars (.php, .html, .shtml for example) and needs to cater for and whether querystring parameters exist too.

So, both

[URL]

and

[URL]

The regex should return newthread for both.

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Get Innerhtm Value Using Regular Expression?

Nov 13, 2009

I.E.:

---------------------------
Windows Internet Explorer
---------------------------
<EMBED src=http://www.youtube.com/v/JTmM3jut05Q&hl=en&fs=1& width=500 height=200 type=application/x-shockwave-flash allowfullscreen="true" allowscriptaccess="always"></EMBED>

how can i get "src" value in above code using regular expression?

<object width="500" height="200"><param name="movie" value="http://www.youtube.com/v/JTmM3jut05Q&hl=en&fs=1&"><param name="allowFullScreen" value="true"><param name="allowscriptaccess" value="always"><embed src="http://www.youtube.com/v/JTmM3jut05Q&hl=en&fs=1&" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="500" height="200"></object>

how can i get "src" value in above code using regular expression?

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Jul 7, 2010

what will be the regular expression for this line:

Code JavaScript:
var id = $(this).attr("href").substring( $(this).attr("href").lastIndexOf('#'), $(this).attr("href").length);

Basically it gets the string after # in href attribute of clicked anchor tag.

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Regular Expression For A Date?

Aug 26, 2010

I have this expression:

/(19|20)dd/)[- /.](0[1-9]|[12][0-9]|3[01])[- /.](0[1-9]|1[012])

to detect if my date:

2010-12-15

is valid. It's not working. What do I have wrong?

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Dec 30, 2004

When Internet Explorer 5.01 for Windows hits the regular expression:

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Jul 23, 2005

does anyone know how I can build a regular expression e.g. for the
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var str = "Somethin like this";

if( str.search( / + strkey + / ) > -1 )
{
...
}

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Dec 7, 2006

I need a regular expression that will validate a double quote comma
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"1","Peter"
"2","Paul"
"3","Mary"

I've used the following expression to validate comma delimited lists, but
without the double quotes, numeric/alpha pairing and line return
restriction.

^([A-Za-z0-9]?)+([,]s?([A-Za-z0-9]?)+)*$

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Normally I can write regular expressions decently well but for some
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Jul 20, 2005

All I'm trying to do is delete the lines which don't contain a particular
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the thing.

Going further, I want to generalize and use a JavaScript variable containing
the decision string, but first I need to worry about the not-within-a-line
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Aug 7, 2009

I would like to validate a textbox that numbers cannot be entered into the text input, how do i do this??? With regular expression??

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Mar 19, 2008

I've got a somewhat cumbersome function that looks like this.

Code:

parseCSVLine = function (line)
{
var tmp = [];
var inQuote = false;

[Code]....

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Apr 30, 2009

Here is the form in question: spraytechDOTcom/download_form.asp I am so close to getting this to work the way that I want, but here is what I am having an issue with: I cannot seem to make it look for the 12 digits that are in the phone numbers that we are going to collect. Ex. 800-123-4567

It doesn't have require 12 characters if there is another way to get the number to validate looking like the example above. Here is my regular expression that I am struggling with:

var re = /[^d-]$/ It seems to block any letters, but it will accept only 1 number. I would really like it to make sure that the phone number is only entered like this: 800-123-4567.

I have looked for days trying to figure this out and have only gotten close.

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Mar 31, 2009

I'm trying to validate data in a textbox for township (usually written as 12N or 23S for Township 12 North or Township 23 South). In Utah the townships range from 01N to 15N, and 01S to 44S. The expression "/[0-9][0-4][ns]/i" will allow 01n (or s) through 94n (or s). If I change it to "/[0-4][0-4][ns]/i" to limit it to 44n (or s), I then am not allowing for 05, 06, 07, 08, and 09. I hope the above is not too confusing. I'm just starting to work with regular expressions.

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I would like to perform a regular expression on a string and if TRUE do something.

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Jan 27, 2010

This is my first serious attempt at using a regular expression.My first name field should allow alpha characters only [A-Za-z], but it seems to be testing for the presence of 1 alpha character. If one is found in the string then anything else is allowed.Bob returns valid which is what I need.Bob1 returns valid but should NOT be valid..1 returns valid not valid which is what I need.My code.

function isValidFirstName(p1_firstName) {
//http://www.javascriptkit.com/jsref/regexp.shtml
var re = new RegExp("[A-Za-z]");

[code]....

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