Check Against Any Input Text Field Using Regular Expression?

Nov 22, 2011

i studied what is RegEx and i wan't to implement it. problem is i don't know how to use it or check it aganist any input text field etc.

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Regular Expression :: Check A Text Field Value To Accept Between 0-20

Aug 6, 2005

i'm fairly new to regular expression and want to know if it's possible to check a text field value. I need to only accept value between 0 and 20. I've got also a problem with the 0 value ... guess the script think it's false :

if(!Number(document.data.f_cat_1.value) || document.data.f_cat_1.value > 20){
alert('Your must enter a numeric value between 0 & 20 pts!');
document.data.f_cat_1.focus();
return false;
}

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Regular Expression To Check A String Is Alphanumeric Only

Jul 23, 2005

I want to check if the user enters alphabet or numbers only in the
text box. If the user enters non-alphabet or non-numbers, I should pop
up a message and doesn't allow the user to do that. I am using regular
expression to do the checking. But it seems it always return false...

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Regular Expression :: Check URL And Pass It To Third Party Tool

Dec 15, 2007

I need to check a url and need to pass a regular expression to a third party tool. How can i make it where it is not case sensitive?

^/summaryreports/(.*)/(.*)?/?$

In the above i need "summaryreports" to be returned true even if user types in "SummaryReports" or "SUMMARYREPROTS".

I am passing the above reg-expression to a third party tool so i can't specify the regulary expression to do case in-sensitive search.

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Regular Expression For A Usernmae Field?

Jul 21, 2011

Without getting too bogged down in regexe's. I'm after a Javascript expression that validates a username field. The field must validate to allow a user to:Must be between 6 and 20 characters long, with at least one lowercase letter, one uppercase letter, and one number.that is, in any combination in any order. Ive got:

Code:
/^(A-Z)+(a-z)+(0-9){6,20}$/

but this matches (If i've got this right) Uppercase first followed by lowercase then a
number - 'too restrictive'.

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Regular Expression :: For Variable Contents Of A Field

Aug 22, 2005

I need to build a regular expression where the expression contents are
variable.

for example I have a string that i need to search for, but the string can
change. If i have a variable called string I need to look at the contents of
string otherwise

/string/

obviously doesn't work!

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Regular Expression To Verify Integer Input

Nov 26, 2009

What expression would I use to validate a field's data - that cannot be anything but an integer?

An empty field is also invalid, or one with a space in it.

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Regular Expression To Test The Validity Of An Input Date?

Jan 6, 2011

I have the following regular expression to test the validity of an input date:

([0-9][0-9]|[0-9])[s/-]([0-9][0-9]|[0-9])[s/-]([0-9][0-9][0-9][0-9]|[0-9][0-9])

It should allow 1 or two digits for the day of the month, then a separating character (" ", "/" or "-"), then 1 or two digits for the month, then 2 or 4 digits for the year.

Unfortunately it will accept anything above 2 digits for the year, which I understand why is happening but don't know how to fix!

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Regular Expression :: Validate Date-time Field In European D/m/y H:m:s Format

Jul 23, 2005

I have the following regular expression to validate a date-time field
in European or d/m/y h:m:s format.

^((((31/(0?[13578]|1[02]))|((29|30)/(0?[1,3-9]|1[0-2])))/(1[6-9]|[2-9]d)?d{2})|(29/0?2/(((1[6-9]|[2-9]d)?(0[48]|[2468][048]|[13579][26])|((16|[2468][048]|[3579][26])00))))|(0?[1-9]|1d|2[0-8])/((0?[1-9])|(1[0-2]))/((1[6-9]|[2-9]d)?d{2}))
(20|21|22|23|[0-1]?d):[0-5]?d:[0-5]?d$

I wish to ammend it so that the time or h:m:s part is validated only if
supplied (i.e. I wish to make the time part optional). At present if a
time is not supplied the validation fails. I gather that the following
part of the above expression

(20|21|22|23|[0-1]?d):[0-5]?d:[0-5]?d$

validates the time, however I don't know the syntax to make it
optional.

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Regular Expression - Take Text Between A [[ And ]] And Put That Into The Same Variable?

Oct 16, 2009

I have a regular expression that looks like this: mytext = mytext.replace(/(*)([^)]+)/gi,"$1 <a href='http://www.mysite.com/script?Argument=$2'>$2</a>"); I understand that this takes text between a ( and ) and puts it into the variable. My question is: How can I change this to take text between a [[ and ]] and put that into the same variable?

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Regular Expression - Get Only LondonGatwickAirport(LGA) From The Above Text

Aug 4, 2009

What is the regular expression for this scenario For example LondonGatwickAirport(LGA) i want only LGA from the above text, using regular expression

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Detect URLs In A Larger Body Of Text Using A Regular Expression?

Aug 21, 2009

How I can detect URLs in a larger body of text using a regular expression in javascript.

For ex.:

I type this text in my form and I saved in database: My home page is

And in my site I want to appear like here:My home page is

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Regular Expression - Input In Format "A-xxxx-xxx" Where 'x' Is Any Alphanumeric Character

Mar 28, 2009

I want input in format "A-xxxx-xxx". where 'x' is any alphanumeric character.

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Turning A Regular Input Filed Into A Password Type Field

Aug 13, 2003

I have an input field for the users name and I have one for their password. Now when they come onto the page I want to have the value for the username filed say "username" and the passwordfield should say "password". Then when the users focusses on the password input the input type should turn password so when they type their password it shows like "*******".

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JQuery :: Use One Input Text Field To Drive Two Hidden Input Text Fields?

Jul 16, 2011

I have a problem created by my complete [rookie] status – only second time venturing into jQuery. I created a simple shopping cart using php and the PayPal buttons (1: buy now, 2: add to cart). The php back end does it great, it generates the table and the buttons and everything works just like it’s supposed to; Except, I forgot to add sizes. So I found out what I need to add, and I realize that the way the buttons work, I will have two different text boxes for size. Not very visually appealing, and since I’m not submitting this to the server before it goes to PayPal to pay, I cannot modify it with php the way I normally would. jQuery / javascript are my only hope of making this work. What I want to do:Have a single textbox where [size] is entered by the user.

Copy the value from the [correct] text box to the Value=”” section of the now hidden field in the PayPal form That way, no matter whether they [BUY NOW] or [ADD to CART] the right size is submitted to the PayPal shopping cart. This is the actual PayPal code that I’m trying to change

<table>
<tr>
<td>
<input type="hidden" name="on1" value="Size" maxlength="200">Size</td>

[code].....

I got this far, and then decided to find how to insert the "enteredVALUE" into the right place in the input text field (what I called output) and I've not been able to figure out how to stuff it in there.

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Check When Cursor Is In An Input Field?

Jun 29, 2010

Is there anyway I can check if the cursor is an input field? I need a function that determines if the cursor is in any input field on the page.

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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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Regular Expression Replace.

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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Regular Expression To Get The File Name From A URL?

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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Regular Expression For Substring?

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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Explorer 5.01 Regular Expression Bug

Dec 30, 2004

When Internet Explorer 5.01 for Windows hits the regular expression:

/(?=<)|>/

it complains about an unexpected quantifier. In fact, it seems to complain whenever I use a lookahead expression. Is there any way around this?

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Check If An Input Field Or Textarea Is Selected/focused?

Dec 30, 2011

I would like to disable a feature on my site if someone is in a textarea or input text field. Yet I can't seem to figure out how to check for this... Could someone give me an example of how I can determine if a user does not have a text input or textarea selected? Can't seem to get anything I found via google working.

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Check If First 2 Letters Equal Certain Characters In Input Field?

Jun 14, 2011

I am having trouble with some javascript code that checks the first 2 letters of what the user inputs and whether it equals a certain set of characters. If the user for instance types in 'TT' in an input field, then i want the holding div to disappear, if anything else is typed in then this action wont happen. My code is below:

Code:
<script type="text/javascript">
function checkCode() {
var x=document.forms["myform"]["code"].value.substring(0, 2);
if (x == 'TT')

[Code]...

I believe the problem lies in the javascript line: "if (x == 'TT')", as the rest of the script responds but it just doesnt recognise whether 'x' starts with 'TT'

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