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jQuery using Regex to find links within text but exclude if the link is in quotes

I am using jQuery and Regex to search a text string for http or https and convert the string to a URL. I need the code to skip the string if it starts with a quote.
below is my code:
// Get the content
var str = jQuery(this).html();
// Set the regex string
var exp = /(\b(https?|ftp|file):\/\/[-A-Z0-9+&##\/%?=~_|!:,.;]*[-A-Z0-9+&##\/%=~_|])/ig;
var replaced_text = str.replace(exp, function(url) {
clean_url = url.replace(/https?:\/\//gi,'');
return '' + clean_url + '';
})
jQuery(this).html(replaced_text);
Here is an example of my issue:
Text The School of Computer Science and Informatics. She blogs at http://www.wordpress.com and can be found on Twitter #Abcdef.
The current code successfully finds the text that starts with http or https and converts it to a URL but it also converts the twitter URL. I need to ignore the text if it starts with a quote or is within an a tag, etc...
Any help is much appreciated

What about adding [^"'] to the exp variable?
var exp = /(\b[^"'](https?|ftp|file):\/\/[-A-Z0-9+&##\/%?=~_|!:,.;]*[-A-Z0-9+&##\/%=~_|])/ig;
Snippet:
// Get the content
var str = jQuery("#text2replace").html();
// Set the regex string
var exp = /(\b[^"'](https?|ftp|file):\/\/[-A-Z0-9+&##\/%?=~_|!:,.;]*[-A-Z0-9+&##\/%=~_|])/ig;
var replaced_text = str.replace(exp, function(url) {
clean_url = url.replace(/https?:\/\//gi,'');
return '' + clean_url + '';
})
jQuery("#text2replace").html(replaced_text);
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="text2replace">
The School of Computer Science and Informatics. She blogs at http://www.wordpress.com and can be found on Twitter #Abcdef.
</div>

If you really just want to ignore the quotation marks, this could help:
var replaced_text = $("#selector").html().replace(/([^"])(\b(https?|ftp|file):\/\/[-A-Z0-9+&##\/%?=~_|!:,.;]*[-A-Z0-9+&##\/%=~_|])/ig, '$1$2');

This works for me:
This will recognize urls and convert them to hyperlinks, but will ignore urls, wrapped in " (quotes).
See the code below or this jsfiddle for a working example.
Example HTML:
<ul class="js-replaceUrls">
<li>
www.link-only-www.com
</li>
<li>
http://link-starts-with-HTTP.com
</li>
<li>
https://www.link-starts-with-https-and-www.com
</li>
<a href="https://link-starts-with-https.com">
Link in anchor tag
</a>
</ul>
RegEX:
/(([a-z]+:\/\/)?(([a-z0-9\-]+\.)+([a-z]{2}|aero|arpa|biz|com|coop|edu|gov|info|int|jobs|mil|museum|name|nato|net|org|pro|travel|local|internal))(:[0-9]{1,5})?(\/[a-z0-9_\-\.~]+)*(\/([a-z0-9_\-\.]*)(\?[a-z0-9+_\-\.%=&]*)?)?(#[a-zA-Z0-9!$&'()*+.=-_~:#/?]*)?)(\s+|$)/gmi
jQuery:
// RECOGNIZE URLS AND CONVERT THEM TO HYPERLINKS
// Ignore if hyperlink is found in HTML attr, like "href"
$('.js-replaceUrls').each(function(){
// GET THE CONTENT
var str = $(this).html();
// SET THE REGEX STRING
var regex = /(([a-z]+:\/\/)?(([a-z0-9\-]+\.)+([a-z]{2}|aero|arpa|biz|com|coop|edu|gov|info|int|jobs|mil|museum|name|nato|net|org|pro|travel|local|internal))(:[0-9]{1,5})?(\/[a-z0-9_\-\.~]+)*(\/([a-z0-9_\-\.]*)(\?[a-z0-9+_\-\.%=&]*)?)?(#[a-zA-Z0-9!$&'()*+.=-_~:#/?]*)?)(\s+|$)/gmi;
// REPLACE PLAIN TEXT LINKS BY HYPERLINKS
var replaced_text = str.replace(regex, "<a href='$1' class='js-link'>$1</a>");
// ECHO LINK
$(this).html(replaced_text);
});
// DEFINE URLS WITHOUT "http" OR "https"
var linkHasNoHttp = $(".js-link:not([href*=http],[href*=https])");
// ADD "http://" TO "href"
$(linkHasNoHttp).each(function() {
var linkHref = $(this).attr("href");
$(this).attr("href" , "http://" + linkHref);
});
See this jsfiddle for a working example.

How to split a string and then embed the second string (link) into the first string?

I'm fairly new to JavaScript and I have this RSS Feed I'm working with currently.
When I retrieve an item from the RSS feed, the following is displayed
Google Home Page http://www.google.com
How can I split this string, so that I can embed the second part of it (http://www.google.com) into the first part(Google Home Page)?

First - exclude the link by using following RegEx pattern (searches for string which starts with http://).
/http:\/\/.*[^\W+]/g
The matched value (Array) is being stored into url, now we are able to create the anchor element. (the value of href is the element 0 inside our matches array).
The link content is being generated by replacing the URL with empty space inside the retrievedResult. trim() is optional, I've used it just to remove remaining space.
retrievedResult.replace(url[0], "").trim()
Finally you can append the built anchor element.
var retrievedResult = "Google Home Page http://www.google.com";
var re = /http:\/\/.*[^\W+]/g;
var url = retrievedResult.match(re);
var anchor = '' + retrievedResult.replace(url[0], "").trim() + '';
$('body').append(anchor);
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

Okay, so this will be the string:
var string = "Google Home Page http://www.google.com";
Then we split it:
var split = string.split('http'); // ['Google Home Page ', '://www.google.com']
Then we create an a element:
var a = document.createElement('a');
Then we add the link as the href attribute of your anchor element:
a.href = 'http' + split[1];
And then we add the text as textContent of your anchor element:
a.textContent = split[0];
And finally we add the element to the body:
document.body.appendChild(a);
Here an example:
var string = "Google Home Page http://www.google.com";
var split = string.split('http');
var a = document.createElement('a');
a.href = 'http' + split[1];
a.textContent = split[0];
document.body.appendChild(a);

You can use jquery to get to your result
Working Example:
//This is HTML part
<div id="linkcontainer"></div>
<input id="str" value='Google Home Page http://www.google.com'>
<a id="createlink">CreateLink</a>
//This is js part
$('#createlink').click(function(){
createLink();
});
//function that makes link
function createLink(){
var str = $('#str').val();
var http = str.indexOf('http');
var url = str.substring(http);
var text = str.substring(0,http);
$('#linkcontainer').html(''+text+'');
}
Try this code on jsfiddle

Strip JS text and save results to variable

I have the following JS function to pull out all words that start with “#” and replace the css styling of them. I would like to add a url that redirects to a query of all items containing the tag.
How would I save the stripped tags, and then dynamically add it to the url for each one?
$('.find-hashtag').each(function(index) {
var str = $(this).html();
var edt = str.replace(/(^|\s)(#[A-Za-z]+)/ig, "$1<a href='{% url "hashtagged_item_list” *stored_value_goes_here* %}'>$2</a>");
$(this).html(edt);
});
Thank you in advance for any help!
What I'm hoping to accomplish:
<p class="find-hashtag">This is sample #html text.</p>
$('.find-hashtag').each(function(index) {
var str = $(this).html();
var tag = "html";
var edt = str.replace(/(^|\s)(#[A-Za-z]+)/ig, "$1<a href='{% url "hashtagged_item_list” tag %}'>$2</a>");
$(this).html(edt);
});

First, store the url generated by django with a dummy tag. Because django is operating server side and js is client side, they cannot be combined:
var url = '{% url "hashtagged_item_list" "dummy" %}';
Then,extract the tag and replace 'dummy' with it:
var edt = str.replace(/\b#([A-Za-z]+)/ig, function(match, tag) {
return '#' + tag + '');
});

How to strip specific tag into div in Javascript?

I have this html code
<div class="myDiv">
My link
<p>This is a paragraph</p>
<script>//This is a script</script>
</div>
And I this javascript:
$('.myDiv').children().each(
function() {
var strToStrip = $('.myDiv').html();
if ( this.tagName != 'A' ) {
// Strip tag element if tagName is not 'A'
// and replace < or > with < or >
strToStrip.replace(/(<([^>]+)>)(?!(a))/ig, "");
}
}
);
How can I strip all tags, except from the a element?
I only need the link and strip tags if it is not a link tag.
I can't find what wrong with this code and what regex can I use to do this.
Any help please?

Try this regex example:
var strToStrip = $('.myDiv').html();
var temp = strToStrip.replace(/<[^a\/][a-z]*>/g, "<");
var result = temp.replace(/<\/[^a][a-z]*>/g, ">");
alert(result);

My goal of this question is to figure out how twitter do his hashtag or usergroup by using # or #. Go here to see the final result

you can use replace method of string using regular expr
var html = $("#main").html();
var result = html.replace(/[\<\>\/]/g,'');
alert(result);
the example shown here

Escape characters in String in a HTML page?

I have a string in the below non-escaped format in a HTML page:
<a href="http://somesite/product?page=blahk&id=EA393216&tabs=7,0&selections=quarter:Q2+2013^&wicket:pageMapName=wicket-2\">SomeThing</a>
What I need is to use jQuery/JavaScript to replace that string with just the link "SomeThing".
I have looked at some examples in StackOverflow, but they don't seem to work. I'm just getting started with jQuery and JavaScript, so would appreciate any help here.
Any ideas?

Try html() and text() in jquery to decode:
var str = '<a href="http://somesite/product?page=blahk&id=EA393216&tabs=7,0&selections=quarter:Q2+2013^&wicket:pageMapName=wicket-2\">SomeThing</a>';
var decoded = $('<div />').html(str).text();
alert($(decoded).text());
See Fiddle demo

var str = '<a href="http://somesite/product?page=blahk&id=EA393216&tabs=7,0&selections=quarter:Q2+2013^&wicket:pageMapName=wicket-2\">SomeThing</a>';
var helper = document.createElement('p');
// evaluate as HTML once, text now "<a href..."
helper.innerHtml = str;
// evaluate as HTML again, helper now has child element a
helper.innerHtml = helper.innerText;
// get text content only ("SomeThing")
alert(helper.innerText);

Here is a possible starting point.
Hope this gets you started!
function parseString(){
var str = '<a href="http://somesite/product?page=blahk&id=EA393216&tabs=7,0&selections=quarter:Q2+2013^&wicket:pageMapName=wicket-2\">SomeThing</a>';
var begin = str.indexOf('\">',0)+2; //--determine where the opening anchor tag ends
var end = str.indexOf('</a>',0); //--determine where the closing anchor tag begins
var parsedString = str.substring(begin,end); //--grab whats in between;
/*//--or all inline
var parsedString = str.substring(str.indexOf('\">',0)+2,str.indexOf('</a>',0));
*/
console.log(parsedString);
}
parseStr();