Regular Espressions And .match()
Jan 21, 2003
I have a regular expression called mCheck and a variable called usrVal which contains Ƈ/20/41/11/22' I then use the usrVal.match(mCheck) so the code looks like the following
var mCheck = /^[0-9][0-9]/;
if(!usrVal.match(mCheck))
{
usrVal = Ɔ' + usrVal;
}
Now, I was under the impression that if there wasn't a match then the match method would return boolean 'False'. However it is returning 'null' instead... I have used this exact same check on other pages before and it returned false just fine....
View 9 Replies
ADVERTISEMENT
Oct 9, 2007
Normally I can write regular expressions decently well but for some
reason I am having trouble getting this to work. I am validating form
data and need to throw an error if there are ANY spaces in the field.
abc123 is fine, abc 123 is not. Any character is fine, just not a
space.
View 2 Replies
View Related
Jul 7, 2009
[Code]...
I just want my regular expression to match a backslash. Thats all. Tried giving [\]. Aint working. Tried[x5c] not working. But this hexadecimal character match is working for all the other characters.
View 2 Replies
View Related
Sep 19, 2009
I have the following code:
var str = "/dev/filler/test0/";
var patt = new RegExp("/test0/$");
var result = patt.exec(str);
document.write(result);
which returns: /test0/
in the var patt line I would like to replace the hardcoded test0 string with an expression that matches any characters between the two forward slashes. I have tried with little success.
View 3 Replies
View Related
Jan 13, 2009
What regular expression will match ANY string that has 10 digits in it?
View 24 Replies
View Related
Feb 12, 2010
I found this regular expression on the internet and it works fine when I test it in various validators on the web.
Code:
^(((0?[1-9]|1[012])/(0?[1-9]|1d|2[0-8])|(0?[13456789]|1[012])/(29|30)|(0?[13578]|1[02])/31)/(19|[2-9]d)d{2}|0?2/29/((19|[2-9]d)(0[48]|[2468][048]|[13579][26])|(([2468][048]|[3579][26])00)))$
It's purpose is to check for valid date and allows formats mm/dd/yyyy, m/dd/yyyy, mm/d/yyyy or m/d/yyyy.
When I try it with the code below it always returns null.
Code:
function isValidDate(/* String */ p1_date) {
var x = "^(((0?[1-9]|1[012])/(0?[1-9]|1d|2[0-8])|(0?[13456789]|1[012])/(29|30)|(0?[13578]|1[02])/31)/(19|[2-9]d)d{2}|0?2/29/((19|[2-9]d)(0[48]|[2468][048]|[13579][26])|(([2468][048]|[3579][26])00)))$";
[Code].....
View 4 Replies
View Related
Jul 23, 2005
I'm trying to perform a very simple validation of user input. I
want to verify that the user entered a six-digit string consisting
entirely of numbers. So anything from 000000 to 999999 is considered
valid. The problem that I'm having is getting the validation to work on
the entire string. In other words, 000000 is okay but 000000000000 is
also returning as a match. Here's a quick code block...I have something
along these lines....
/*********************/
<html>
<body>
<INPUT name="txtNumberField" type="text" id="txtNumberField">
<INPUT onClick="fnTestNumberField()" id=Button1 type=button value="Test
Number!" name=btnTest>
<script language=javascript>
function fnTestNumberField()
{
var sNumberValue = document.getElementById("txtNumberField").value;
if (sNumberValue.match(/A[0-9]{6}z/))
{
alert("match");
} else {
alert("no match");
}
}
</script>
</body>
</html>
/******************/
That is failing when I enter 123456 into the textbox. Why, though? I
know I can replace...
if (sNumberValue.match(/A[0-9]{6}z/))
....with something like...
if (sNumberValue.length == 6 && sNumberValue.match(/[0-9]{6}/))
....or I could assign a maxlength to the input box, of course. The thing
is, I really want to know WHY the regular expression isn't responding
as I'd expect. Is there a syntax error somewhere in the code?
View 2 Replies
View Related
Sep 16, 2009
is there a way to select elements that match a regular expression? I have a set of divs with id = "wrap_n" where n is a progressive and I need to select them and for each 1 I have to add a function that togggle the "elem_n" div.
View 4 Replies
View Related
Mar 14, 2007
I need to figure out a pattern that can match each letter of the message, but leaves all the html entities alone.
For example, I have a input like this:
<div>
This is the content < Hello >
</div>
Just as an example to make it more clearer, If I wanted to replace the all letters of the message with the number "1" I would have this result:
<div>
1111 11 111 1111111 < 11111 >
</div>
View 2 Replies
View Related
Jan 17, 2011
I am trying to match an email string that ends exactly with ".com". Here's what I have
var email = window.prompt("Enter your email", "");
var email_match = /[a-zA-Z1-9-_.]{3,}@[a-zA-Z]{3,}.(com)/
if (email_match.test(email))
[code]....
the (com) also matches commm for some odd reason. What must I change in the code so that only emails ending with .com is valid?
View 3 Replies
View Related
Jul 6, 2009
I am trying to test some strings against a regular expression, but have tried at least 10 different online testers with no success at all. Plus I've tried some code to do it myself, again with no success. I know for a fact that some of the strings should match and some shouldn't match, but I am getting "No match" returns from all the strings.
Does somebody have some page code that has the regular expression in some javascript code in the head section of a document, then a form in the body that I can enter the text string, click a button, and I get an alert saying if the string matches or not?
View 4 Replies
View Related
May 3, 2010
for the character classes [ ], if i want to match ,.[] i cannot put them into the square brackets so how to deal with that? what if the characters are . or ! or ." (<-- combined) it fails if the regexp is [.!(.")] which will treat ( as one of the element. also the book javascript: the definitive guide says that (?=p) requires that the following characters match the pattern p, but do not include those characters in the match. However, the browser failed to figure this out (IE8) i.e. "asd:ert".match(/(?=:)w/) returns null
View 9 Replies
View Related
Dec 27, 2005
I'm trying to create a script where all the hyperlinks in a page will be replaced with a new set of coding before it. (e.g: a href="this.htm?http://www.google.com").
My code generates this change through a series of random numbers and only runs the script when "2" is the generated number (out of 12). Now, I only know how to replace all occurrences of "href" in all "a" tags, but there are times when I use Javascript to launch new windows or even javascript to navigate to the top of a page.
I tried to use a string match method to search for occurrences of "javascript:" and so forth, but I can't seem to get it working. Code:
View 3 Replies
View Related
Jul 1, 2010
Can someone please let me know what this matches - i can work out some but not all code...
View 3 Replies
View Related
Jan 10, 2006
I can remember seeing a function some time ago, but I cannot recall
what it was or how to use it.
I am wanting to have two arrays - oldArray & newArray.
I need a function which I can call so that it will look inside the
specified string ("theString") and replace each instance of each entry
of oldArray with the corresponding entry in new Array.
Example:
theString = "12345678";
oldArray = new Array("1","2","3");
newArray = new Array("One","Two","Three");
theString = theString.XXX(oldArray,newArray);
// theString = "OneTwoThree45678";
Any ideas, suggestions, references?
View 1 Replies
View Related
May 18, 2007
I have been working on this for a few hours and am frustrated
beyond all extent. I have tried to research this on the web as well
with no success. I am trying to match certain contents within a
wrapper div. So for example if the inside of the wrapper div was the
following:
<div id="wrapper">
<a href="#">a great link that contain text and symbols</a>
<div... </div>
<div... </div>
</div>
I would like to strip out all the internal div's. But because there
can be alot of internal div's, I figured it would be less processor
intensive to just match the first 'a' tag and repopulate the wrapper
div with the match. I am trying to use something like the following
regex:
re = /^<a(.+)</a>/;
with the following statment:
$temp = document.getElementById('wrapper').innerHTML.match (re);
but this is returning the entire contents of the wrapper div. I have
tried variations of the regex and either continue to get the entire
contents or null returns. Any help would greatly be appreciated.
BTW, I can't match to the first because the contents may be touching (ie ...</a><div>...).
View 3 Replies
View Related
Aug 6, 2009
Trying to match a string containing a newline, among other things.
View 4 Replies
View Related
Dec 8, 2009
How do I extract "somestring" only? I'm on IE7.
<script type="text/javascript">
var x = "(EVAL)(H:somestring)Some other Text here";
var full =(x.match(/(H:(.*?))/g)); // produces "(H:somestring)" as expected
alert(full);
var inside = (x.match(/(H:(.*))/)); // produces "(H:somestring),somestring" .. I only
want "somestring"
alert(inside);
</script>
View 1 Replies
View Related
Mar 15, 2011
How would i use a wildcard in String.match()? For example, I would like to see if a variable contains www.*.com, where the * can be replaced with anything. How could i go about doing that?
View 1 Replies
View Related
Sep 22, 2011
I have this string: this is my test <a href="yay.html">yay</a> and want to just match the part before the <a...: this is my test I can't figure out the regular expression for this. I've tried everything I can think of. It seems that it needs to do a non-greedy search on the first < it finds, but nothing works, like: ((.*<)?)
View 2 Replies
View Related
Jun 17, 2010
I am willing to know how to match a website s title using regex.
View 4 Replies
View Related
Jun 28, 2009
I'm working on an AJAX calendar. Visitors can select a date, fill out a form to request a meeting, and click submit. Here's what's crazy. My calendar has two parts: the top part displays the meetings for each day as well as the form and the bottom part displays the actual calendar. When you click submit, the top part update correctly, but using the same variable, the bottom part is incorrect. After doing some debugging I found that the variable for some reason changes between the php and javascript.
The rest of the code is unimportant because it does not pertain to my question. I have a callback function (show_cal) that uses eval() to parse the javascript built on the server. The getEvents function works without a hitch. The getCalendatMonth does not and here's why: in the php, the echo "alert(\"" . $date . "\");"; shows the correct response (2009-28-09) however the alert(date); in my Javascript only returns a random year (1975, 1976, 2000). Does anyone have any suggestions about why the two alerts would be different?
Here's the code.
java script:
function getCalendarMonth(date)
{
if(http.readyState ==4)
{
[Code].....
View 2 Replies
View Related
Dec 9, 2009
I want to check a string if it contains certain letters.the string is Elephant and if i check it for the letter "e" i want it to display all the "e" letters.If i use the following code it always just displays the first "e". but i want to display all the "e".
<html>
<body>
<script type="text/javascript">
[code]....
View 1 Replies
View Related
Feb 24, 2010
I'm trying to match all integers before and after the hyphen:
12345-5
This is what I tried but always returns null
Code:
var divID = '12345-5';
var idPattern = /^[0-9]+$/; //Matching one or more numbers before the hyphen
var id2Pattern = /^-[0-9]+$/; //Matching starts from the hyphen and all numbers that proceed
[code]....
View 4 Replies
View Related
Feb 14, 2011
I need to find out if a string contains any of the following wildcard "@#!%^&*~". If exists, then the string is invalid. Instead of using indexOf each one of the wildcard, what else can do this easier?
View 2 Replies
View Related
Jul 23, 2005
I am trying to figure out how to set up my reg exp search so that the search
will only match on the exact word.
Here is the current problem code:
Word1 = "RealPlayer.exe"
Word2 = "Player.exe"
RegExp re = Word2;
if (re.Find(Word1))
{
bFound = TRUE;
}
Currently the bFound is set to TRUE since "Player.exe" is found within
"RealPlayer.exe". But I only want bFound to be TRUE is if the entire word
matches.
View 6 Replies
View Related
