RegEx - Match Non-alphanumeric Characters But Ignore?
Jul 18, 2009
We have been using the following js/regex to find and replace all non-alphanumeric characters apart from - and + outputString = outputString.replace(/[^w|^+|^-]*/g, "");
However it doesn't work entirely - it doesn't replace the ^ and | characters. I can't help but wonder if this is something to do with the ^ and | being used as meta-characters in the regex itself.
I've tried switching to use [W|^+|^-], but that replaces the - and +. I thought that possibly a lookahead assertion may be the answer, but I'm not very sure how to implement them.
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Jan 27, 2010
I'm trying to write/find a regular expression for finding ampersands but not HTML entites.I have this which finds entities but can't figure out how to ignore entities and return unmatched "&"
&[^s]*;
Test string: This is sample test containing a bunch of & and entities. Do you shop at: M&S? &x#1234;
I want to HTML encode the non-entity ampersands for insertion into XML e.g.
"bunch of & and" --> "bunch of & and"
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Jul 23, 2005
I am in the process of editing the below code I found online, I have a
from multi-select list and a to multi-select list. Before rewriting
the to list, I want to sort it but ignore the "F - " and the "R - ".
Ideas? Code:
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Dec 2, 2010
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?
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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>...).
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Jun 17, 2010
I am willing to know how to match a website s title using regex.
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Jul 16, 2010
I'm trying to create a branching form wherein the user selects a date using the datepicker plugin, then, depending on whether they choose a weekday or a Saturday, they are presented with one or the other of 2 select lists to choose the time.
I'm just getting started, and I can't seem to get the regex right. Here's a simplifed version of the relevant part of the datepicker,
$(function() {
$(".datepicker").datepicker({dateFormat: 'D, mm-dd-yy',buttonText: 'Click Me!', });
});
and here's the initial test to see if the chosen date falls on a weekday or a Saturday:
$(document).ready(function() {
$(':input[name=datepicker]').change(function() {
if ($(this).val()!=/^Sat,.*/)
{
[Code]....
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Mar 27, 2011
I've got the current script which returns 1 match in matches[0] with a url, but I need it to return ALL occurrences in the string.And then I need to know how to loop through the matches and display each "url" in this case.Nothing I've tried seems to find more than 1 match even when [string] contains a list of urls, which indicates I've done something wrong.
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Mar 20, 2011
I was trying to do something similar to code highlighting but can't find a good way to do it. For example lets take this code:
def some_function():
something()
somethingElse()
def some_other_function():
something2()
somethingElse2()
[Code]...
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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.
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Aug 12, 2010
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]...
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Dec 7, 2010
I'm writing a form validation function and would like to verify that a field only contains alphanumeric characters. How should I structure that statement? the following seems logical but doesn't work;
Code JavaScript:
if(document.getElementById('RegisForm_Username').value == /[^a-zA-Z 0-9]/g)
{
your username must be alphanumeric (consisting of the letters A-Z or numbers 0-9) and cannot have any special characters.");return false;}
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Jun 15, 2011
Is there a way to make one regex to replace a space with " " and a tab with " "?
Currently I'm using two regex's with string.replace( ... ).replace( ... ), but that means it has to run through the string twice. Any way to do what I want in one regex?
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Jul 23, 2005
I want the javascript to test an alphanumeric (a string contains alphabet or numbers only) string. Should I write a regular expression?
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Jul 23, 2005
I'm trying to debug my expression that matches an alphanumeric with any
number of dashes (including none), except at the ends and obviously
disallowing two or more consecutive dashes.
Here it is: /w+(-?w+)*/
Test cases that I expect to pass are failing:
"01234abcdef" true
"0123-412-8370" false (should've been "true")
"asdkfjakfj" true
"0-1" false (should've been "true")
"-" false
"--" false
"-ABC123" false
"00230-" false
"ABC-123" false (should've been "true")
"1-" false
"111223333" true
Would anyone lend a hand?
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Mar 5, 2007
How i check alphnumeric & space validation for input text?
e.g.
input : "abc GNM 2" is valid &
input : "abc GNM %2" is invalid
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Apr 14, 2011
im trying to set a textbox to only accept alphanumeric characters but it needs to accept a space in between each entry because it is a textbox all i can get it to do now is only allow numbers to be entered using the following code:
[Code]...
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Jul 9, 2006
I need to stop a function from continuing if the key pressed wasn't alphanumeric or a hyphen. how can this be achieved?
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Nov 16, 2011
I want the user to enter only alphanumeric(i.e a-z and 0-9) and a "-"(hyphen) in the text field
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Dec 14, 2011
I have a double select list box. it contains Alphanumeric values.I want to apply sorting on the but when i use Array.sort() function it doesnt work.Eg data
Apple
Mango
Week 10
[code]....
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May 26, 2006
sort Alphanumeric and alphabets present in the same column.Numbers should be sorted first,and then the words with number in the beginning should follow it and then words in the sorting order.
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Feb 24, 2011
I have used this script:Code:someString.replace(/[^A-Za-z0-9 .]/g, '')...many times to remove non-alphanumeric and non "." and " " characters but am having to re-think its use as I start working on non-American English languages for string replacement. The reason for this is that this RegExp also pulls out special characters such as "ó" and "ñ". I'm not certain, but I think it would also remove all double-byte characters such as various Asian-language words.Has anyone run into this problem and have they found a simple coding solution to catch all non-English special characters?
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Jan 22, 2006
I have an num -569360386, and turn it into hex format.
I use toString(16),I get -21efc002.
But how can get 0xDE103FFE,which is to ignore the highest bit as the
signed bit?
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Oct 13, 2009
I am trying to read data from excel file and use the same to populate a select menu. If any cells are blank, I want to ignore. But I am unable to do this. The dropdown gets populated with blanks. Following is the peice of code:
var excel_cell = excel_file.ActiveSheet.Cells(i,1);
alert(excel_cell);
if(excel_cell=='undefined')
[code]....
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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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Sep 12, 2011
I have a form and I need to validate a field against three rules:
1) The field need to be between 6 and 12 characters
2) It can only have letters, numbers, and the underscore
3) It cannot contain a space or other special characters
I want the validate to happen in real-time. I have the first rule working great. Here is the code for that:
var username = document.getElementById('registerUsername');
if((username.value.length < 6) || (username.value.length > 12))
{
document.getElementById('usernameValidate').innerHTML="Incorrect.";
[Code]....
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