am in need of escaping the regular expression special characters like '/', '.', '*', '+', '?', '|','(', ')', '[', ']', '{', '}', '\'.I have try with this by the following javascript but i can not achieve that.
RegExp.escape=function(str)
{
if (!arguments.callee.sRE) {
[code]....
Attempting to use javascript's regular expression methods to match a
particular lab number and building which would then be copied to a pair
of textfields, I found that general matching characters needing a
backslash were not recoginized. The following adapted code that finds
a two-button radio selection shows my problem:
function labstat(){
for (i=1; i<3; i++){
if(document.tester.rm_mod[i-1].checked){
var lb = document.tester.elements["lab"+(i)].value;//either
214 or 215*
var bld = document.tester.bldg.value;
if(/*/.test(lb)){ //error:Undetermined comment
// if(/*/.test(lb)){ //error:Syntax error
// if(/5/.test(lb)){ //works to match only 215*
// if(/5*/.test(lb)){ //true for all
// if(/ddd/.test(lb)){ //false for all
document.tester.room1.value = lb;
document.tester.bldg1.value = bld;
}
}
}
It appears that the escaped characters are not recognized, whichever
form of the method is used, i.e var re = /*/; // or = new
RegExp("*");
if(re.test(lb)){
--------
With the --.match(__) method I have the same problem.
Can anyone tell me how to escape the special characters(like &,^,%,$ etc) in a string using Javascript?
For eg. I have a string like this : "Tes$#t" I want this to be changed to Tes$# before sending as a input parameter. So that i can process the string as it is typed exactly.
I'm using HAML to make html templates but am having a problem in writing attributes which will be replaced with JavaScript string templating.
The line in question looks like this:
%div{:class => "<%= from_class %>"}
HAML tries to encode the <%= %> tags:
<div class="<%= from_class %>">
I don't want that to happen in this case... Anyone know how to do this?
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]....
I have the following code:
var str = "/dev/filler/test0/";
var patt = new RegExp("/test0/$");
var result = patt.exec(str);
document.write(result);
which returns: /test0/
in the var patt line I would like to replace the hardcoded test0 string with an expression that matches any characters between the two forward slashes. I have tried with little success.
String must be minimum 6 charcters long and can only contain A-Z, a-z and 0-9 ....
View 2 Replies View RelatedI wanted to try creating a basic expression first. I want someone to enter a string that is 2 - 20 characters long and only has letters. This is what I use so far, and it doesn't work, nothing happens at all when I run it.
Code:
// Check for a valid name.
var namePattern = new RegExp("/^[a-zA-Z]{2,20}$/");
if (namePattern.test(name))
{
window.alert("Invalid");
}
name comes from a input box I display on screen. Also, I would like to update the expression so that there can be one space in the string, but it cannot be at the beginning or end. So this string is like a persons name. Bob is OK, Bob Smith is also OK. Edit: Actually, it is doing something but its always coming back invalid.
I have character counter for textarea wich counting the characters.
Special character needs same place as two normal characters because of
16-bit encoding.
Counter is counting -2 when special character is added like some
language specific char.
How to count specials like 1 char?
I am copying from microsoft word a simple word into my application(rich text editor)..
i get special characters added to it. how can i get rid of them?
how can i solve the issue?
I have a problem displaying a divbox containing a html-textarea -
everything works fine with "normal" characters. However, when the
textarea contains special chars like <P> or ' , the box fails to show:
function show(divbox)
{
divbox.style.display=''
}
<div id="divbox" style="display:none" >
<form action="action.php" method="post>
<textarea name ="txt">Text</textarea>
</form>
</div>
If the Text in the textarea is for instance
HERE IS A "QUOTE"
it works fine, while
HERE IS A 'QUOTE'
produces an error
<br>-tags works fine, but
<p>-tags doesn't
I have a number of scripts that take special characters and convert them
to their ascii equivalents and them store them in the database.
However I am running into a problem that I have some of those fields are
loaded to an array and inserted into cells dynamically. As an example
the array would be:
var my_array = [ ["52","Source Data"], ["19","Body &
Soap"] ];
Then I have some javascript that creates the cell and inserts the value
into a cell text node like:
var x = my_array[1][1]; // this would be "Body & Soap"
//create the cell
myTD=document.createElement("TD");
//create the text node
myText=document.createTextNode(x);
// Appends each node following the structure.
myTD.appendChild(myText);
What I see on the output is: "Body & Soap"
What I should see is: "Body & Soap"
Anyone know how to get around this?
I'm having trouble with ajax return invalid characters.
it keeps returning: � � or ? ?
and it should be: © ®
any ideas as to how i can fix this?
i have a textarea on the page. how can i check if user inputted any spec. characters?
like ; ! * & $ and etc
I am new to JSP programming and was trying to do some validation on my JSP page as follows:
Special characters : ><&"'()#%;+-
The above mentioned characters needs to be validated at the client side. I am using the expression
var Uidalph = /^w*>*w*$/;
!Uidalph.test(document.form.userUid.value)) {
buildErrMsg( "Username","Invalid characters")
I want to extract the characters other than alphabets (a-z and A-Z), numbers (0-9) and hyphen( - ) from a string. Is there any way for doing this?
View 2 Replies View RelatedI am trying to get a series of dynamic digits from page one to page two via the url. below are the codes have been able to come up with. The problem am having however is that the variables from the first page contains two other characters mainly (=) and (on). therefore, the result i get is like this;
What i want displayed are simply the numbers without these two characters.
Var x = aa "aaa" aa
How can i display this value within a textbox?
E-mail addresses can't contain some characters.How to check if the users input is ok? the code don't work, IE says "expected object".
View 1 Replies View RelatedI'm using a simple function and an anchor tag inside of paragraphs to insert video code and images into locations in web pages.
Code:
function insert(s, tag){
document.getElementById(tag).innerHTML = s;
}
[Code].....
I'm using a dropdown to set the value of a textarea to some text pulled from a database.
This text is something like this:
I have something like that:
var button = document.getElementById("mybutton");
if(flag) {
button.value = '»'
} else {
button.value = '«'
}
This code set my button value to text: '»' but not to symbol '>>'.
How to do that ?
I have a JSON source (a plain text file) that has some special chars in it and they look correct in the text file. However when I retrieve the file and use $.evalJSON against it the resultant array has things likeinstead.I'm sure I must be missing something obvious
View 1 Replies View RelatedI'm trying to get some images on my page by their src attribute. Src attribute have this format :
src = [URL]
For doing that I'm using the following query :
$j("img[src*='request=gettile'][src*='"+$j(this).data("target")+"']")
$j(this).data("target") contains my mapname, it works fine.
But my users can use mapname that can be contained in another map names. Example : mapblabla and pbla. When I'm searching pbla it's returning images of mapblabla and pbla. That's why I need to put the symbol equal before and the symbol & after my map name. Then the request is :
$j("img[src*='request=gettile'][src*='\="+$j(this).data("target")+"\&']")
i have a special java code for input strings like:
Code:
<script type="text/javascript">
String.prototype.toCapitalCase = function() {
var re = /s/;
var words = this.split(re);
[Code]....
But i dont know how to make it work in <input> and this is also without spaces check ..
I was hoping that someone could give me a hand with a regex quetsion. I'm quite new to it all, but managed to get things working pretty much how I would like them except for allowing special characters such etc.
[Code]...
