I'm to build a forum for the project, but right now I'm facing this problem where I want users to be able to post their HTML source code as it works in this forum.
But the problem is that the code runs or scatters my design when retrieve from my DB.
I tried using repalce() in jQuery but I could only replace < with < but I want a function to be able to replace others such as >,",' and & so my question is how can I update this function.
function convert(div){
var str = $(div).html();
var str2 = str.replace(/</g,"<");
var sta = $(div).html(str2);
return sta;
}
The above code work to replace the < but when I try including >,",' and & in the function it will stop work how can i make it work.
Thanks in advance.
Stick it in <pre> or <code> tags, or both, and make sure you use text() when inserting the content to the tag
function convert(div){
var str = $(div).html();
var sta = $('<code />', {text : str});
return sta;
}
var result = convert( $('#test') );
$('#result').html(result)
#result {
white-space : pre;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="test">
<span>
<p>TEST</p>
</span>
</div>
<br />
<div id="result">
<code> will preserve the code, and <pre> will preserve whitespace, but there's also the CSS white-space property, that can act as a <pre> tag using the pre setting
Related
I give up! I looked at many different answers. I've tried many different ways and nothing works. I want to change the </blackquote> tag to <br /> or a new line in the textarea. Alternatively, change to some other character, because later I can replace another character in PHP to <br/>. How to do it?
Working example for easy understand here: https://jsfiddle.net/jsf88/rb3xp7am/35/
<textarea id="comment" name="quote" placeholder="quote" style="width:80%;height:200px;"></textarea>
<section class="replyBox" style="width: 100%;"><br/>
[ click for quote ]
<div class="replyMsg">
<blockquote>this is a quote for comment😎 </blockquote><br />
"X" -- HERE I want BR_TAG or new line in textarea after click 'quote' 😐
</div>
</section>
$(document).on('ready', function() {
$('.quoteMsg').click(function() {
var txt = $(this).closest('.replyBox').find('.replyMsg').text();
//txt = txt.replace('</blockquote>', '<br/>');
//txt = txt.replace(/<\/(blockquote)\>/g, "<br/>");
//txt = txt.replace(/blockquote*/g, '<br/>');
//txt = txt.replace(/(.*?)<\/blockquote>(.*?)/g, ' xxx ');
txt = txt.replace(/<\/blockquote>/gi, '<br/>')//NOT WORKING!!
txt = txt.replace(/(?:\r\n|\r|\n)/g, ' ');//working great
console.log(txt);
$("textarea[name='quote']").val($.trim('[quote]' + txt + '[/quote]'));
});
});
To make it funnier, another example with changing the blackquote tag to br works without a problem. Why? can someone explain it?
//OTHER EXAMPLES WHERE CHANGE </BLACKQUOTE> to <br/> WORKING GOOD... WTF?!
string = ` <blockquote>this is a quote for comment😎 </blockquote><br />"X" -- HERE I want BR_TAG or new line in textarea after click 'quote' 😐`;
string = string
.replace(/<\/blockquote>/gi, ' <br /> ');//but here working! ;/
console.log(string);
you recover text with text function ('.replyMsg').text() but in that case you will have the text but with no html tag like <blockquote> so first you will have to recover the html to have the blockquote tag
var txt = $(this).closest('.replyBox').find('.replyMsg').html();
the br tag is not interpreted in textarea so you have to change it by a new line character
don't forget to remove opened bloquote tag to get the expected result
txt = txt.replace(/<blockquote>/gi, '');
$('.quoteMsg').click(function() {
var txt = $(this).closest('.replyBox').find('.replyMsg').html();
txt = txt.replace(/(?:\r\n|\r|\n)/g, ' ');
txt = txt.replace(/<\/blockquote>/gi, '\n');
txt = txt.replace(/<blockquote>/gi, '');
console.log(txt);
$("textarea[name='quote']").val($.trim('[quote]' + txt + '[/quote]'));
});
blockquote {
background-color: silver;
}
.replyMsg {
border: 2px solid green;
}
.quoteMsg {
background-color: green;
color: #fff;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<textarea id="comment" name="quote" placeholder="quote" style="width:80%;height:200px;"></textarea>
<section class="replyBox" style="width: 100%;"><br/>
[ click for quote ]
<div class="replyMsg">
<blockquote>this is a quote for comment😎 </blockquote>
"X" -- HERE I want BR_TAG or new line in textare a after c lick 'quote' 😐
</div>
</section>
The first problem in your code was how you were adding the event listener to the ready event. Being it something invented by jQuery, and not a native event, the correct way to do it should be as of now (v.3.3.1 the version I used in this demo) $(document).ready(()=>{/*code here*/}).
As a further reference:
https://api.jquery.com/ready/
There is also $(document).on( "ready", handler ), deprecated as of
jQuery 1.8 and removed in jQuery 3.0. Note that if the DOM becomes
ready before this event is attached, the handler will not be executed.
But... it's not perfectly clear how did you wish to transform your text before setting the value of the textarea. So I just better factored your logic so that you have some clear steps:
grabbing the blockquote element text content and trimming it (being the origin)
applying the transform newline to whitespace (with the regex that I left untouched)
build the final string as a template literal that will include the quote content, the meta tags wrapping it, AND anything else you wish to add like for example a new line (\n) that in this example is exacerbated by a text following it.
There's a hint in your words that put me in the position to say something superflous but still deserving an attempt: the value of a inner text is just plain text and doesn't render html content. So the <br> itself would remain as you read it and wouldn't have any rendering effect on the textarea content. That's why I focused my demonstration on putting a newline with the escaping sequence. It works both on double quoted strings and template literals: "\n" `\n`
Further notes
It seems the original approach of processing the blockquote html was preferred. It's worth saying that it was appearently a terrible strategy for several reasons:
It grabs the blockquote content as html despite that's not how it's
rendered on the page.
It takes the effort to consider the whole outerHTML removing the
wrapping blockquote tags instead of fetching directly the innerHTML.
It adds the newline as newline instead of embedding it as <br> so
at this point I ask myself if the content in the textarea was
supposed to be encoded html or not.. and the added br would then
belong to something meta?
It's harder to deal with in case you want to further customize the
string processing
But... maybe there's something I didn't get and I'm doing weak assumptions.
//since you are using the ready event with jquery, that's the correct syntax
$(document).ready(function() {
$('.quoteMsg').click(function() {
//grabs the text content of the blockquote element (trimming it)
var quoteTextContent = $(this).closest('.replyBox').find('.replyMsg').text().trim();
//performs the transform already in place in your code.. replacing newlines with white spaces
quoteTextContent = quoteTextContent.replace(/(?:\r\n|\r|\n)/g, ' '); //working great
//builds the string to set the textarea value with, using a template literal
//here you can add anything you want.. like a new line but that's just an example
const encoded = `[quote]${quoteTextContent}[/quote]\nand something following to show the new line happening`;
console.log(encoded);
$("textarea[name='quote']").val( encoded );
});
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<textarea id="comment" name="quote" placeholder="quote" style="width:80%;height:200px;"></textarea>
<section class="replyBox" style="width: 100%;"><br/>
[ click for quote ]
<div class="replyMsg">
<blockquote>this is a quote for comment😎
<br>
Having new lines also ... since you perform a regex transform newline=>whitespace
</blockquote><br />
</div>
</section>
Well, thanks for answers. The problem was a missing .html tag.
This script work for me almost perfect for quoting few times:
$(document).on('ready', function() {
$('.quoteMsg').click(function() {
var txt = $(this).closest('.replyBox').find('.replyMsg').html();
txt = txt.replace(/(?:\r\n|\r|\n)/g, ' ');
txt = txt.replace(/</g, "<");
txt = txt.replace(/>/g, ">");
txt = txt.replace(/&/g, "&");
txt = txt.replace(/"/g, '"');
txt = txt.replace(/'/g, "'");
txt = txt.replace(/<br>/g, "");
txt = txt.replace(/<hr>/g, "[hr]");
//txt = txt.replace(/<hr>/g, "\n");
txt = txt.replace(/<blockquote>/gi, '');
txt = txt.replace(/<\/blockquote>/gi, '[hr]');
txt = txt.replace(/[hr][hr]/gi, "");//not working ([][])
txt = txt.replace(/[hr][hr]/gi, "[hr]");//not working ([[hr]][[hr]])
console.log(txt);
$("textarea[name='quote']").val($.trim('[quote]' + txt + '[/quote]\n'));
});
});
The problem here is I dont know how to change dubble [hr][hr] for nothing, because this txt = txt.replace(/[hr][hr]/g, ""); not working, so would be cool for more explain about. One more time big thanks for answers! this function .replace is not as intuitive as in PHP.
EDIT: ahh.. I think is not possible to delete this dubel, because I extra insert it two times. Nvm. I will find and del this dubel in PHP.
Is this possible using JavaScript or JQuery, or anything else?
Say I have an HTML file like this
<div>
<p>Hello World</p>
</div>
And I want to turn "World" into a span element itself, like so (so that I can style just "World")
<div>
<p>Hello <span>World</span></p>
</div>
Since there are a lot of unknowns in your question, so I am assuming that you already know the string/word around which you want to add the html tag.
So keeping that in mind, following solution should work:
HTML:
<div>
<p id="my-text">Hello World, Again!</p>
</div>
JavaScript:
const stringToBeReplaced = "World"; // what you want to replace
const innerText = document.getElementById("my-text").innerText; //grab the text
const beginIndex = innerText.indexOf(stringToBeReplaced); // get text where string begins
// if string exists
if (beginIndex >= 0) {
const textWithTag =
"<span style='color: red'>" + stringToBeReplaced + "</span>";
const newString = innerText.replace(stringToBeReplaced, textWithTag);
// replace the text with new string
document.getElementById("my-text").innerHTML = newString;
}
Hope this is what you were asking and looking for.
https://www.w3schools.com/jsref/tryit.asp?filename=tryjsref_replace3
str.replace solves the job. The comment of #Umer Hassan is correct.
I have an HTML article with some annotations that I retrieve with SPARQL queries. These annotations refer to some text in the document, and I have to highlight this text (wrapping it in a span).
I had already asked how to wrap text in a span, but now I have a more specific problem that I do not know how to solve.
The code I wrote was:
var currentText = $("#"+v[4]["element"]+"").text();
var newText = currentText.substring(0, v[5]["start"]) + "<span class=' annotation' >" + currentText.substring(v[5]["start"], v[6]["end"]) + "</span>" + currentText.substring(v[6]["end"], currentText.length);
$("#"+v[4]["element"]+"").html(newText);
Where:
v[4]["element"] is the id of the parent element of the annotation
v[5]["start"] is the position of the first character of the annotation
v[6]["end"] is the position of the last character of the annoation
Note that start and end don't consider html tags.
In fact my mistake consists in extracting data from the node with the text() method (to be able to go back to the correct position of the annotation) and put back with the html() method; but in this manner if parent node has children nodes, they will be lost and overwritten by simple text.
Example:
having an annotation on '2003'
<p class="metadata-entry" id="k673f4141ea127b">
<span class="generated" id="bcf5791f3bcca26">Publication date (<span class="data" id="caa7b9266191929">collection</span>): </span>
2003
</p>
It becomes:
<p class="metadata-entry" id="k673f4141ea127b">
Publication date (collection):
<span class="annotation">2003</span>
</p>
I think I should work with nodes instead of simply extract and rewrite the content, but I don't know how to identify the exact point where to insert the annotation without considering html tags and without eliminating child elements.
I read something about the jQuery .contents() method, but I didn't figure out how to use it in my code.
Can anyone help me with this issue? Thank you
EDIT: Added php code to extract body of the page.
function get_doc_body(){
if (isset ($_GET ["doc_url"])) {
$doc_url = $_GET ["doc_url"];
$doc_name = $_GET ["doc_name"];
$doc = new DOMDocument;
$mock_doc = new DOMDocument;
$doc->loadHTML(file_get_contents($doc_url.'/'.$doc_name));
$doc_body = $doc->getElementsByTagName('body')->item(0);
foreach ($doc_body->childNodes as $child){
$mock_doc->appendChild($mock_doc->importNode($child, true));
}
$doc_html = $mock_doc->saveHTML();
$doc_html = str_replace ('src="images','src="'.$doc_url.'/images',$doc_html);
echo($doc_html);
}
}
Instead of doing all these, you can either use $(el).append() or $(el).prepend() for inserting the <span> tag!
$("#k673f4141ea127b").append('<span class="annotation">2003</span>');
Or, If I understand correctly, you wanna wrap the final 2003 with a span.annotation right? If that's the case, you can do:
$("#k673f4141ea127b").contents().eq(1).wrap('<span class="annotation" />');
Fiddle:
$(document).ready(function() {
$("#k673f4141ea127b").contents().eq(1).wrap('<span class="annotation" />');
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<p class="metadata-entry" id="k673f4141ea127b">
<span class="generated" id="bcf5791f3bcca26">Publication date (<span class="data" id="caa7b9266191929">collection</span>): </span>
2003
</p>
At the end my solution is in this Fiddle.
Generalizing:
var element = document.getElementById(id);
var totalText = element.textContent;
var toFindText = totalText.substring(start,end);
var toReplaceText = "<span class='annotation'>"+toFindText+"</span>";
element.innerHTML = element.innerHTML.replace(toFindText, toReplaceText);
Hope it could help someone else.
Note: This don't check if two or more annotations refers to the same node, I'm working on it right now.
I am having the following html :
<div id="iView" name="iView" contenteditable="true" style="width: 545px; height:185px; border: 2px solid green;"><p>jgfj</p>hello this</div>
<input type="button" value="click" onClick="getEditorText();" />
And my Script goes here :
function getEditorText(){
var viewContent = document.getElementById('iView').innerHTML;
alert(viewContent);
//alert(viewContent.replace(/<([^>]+)>/ig,"")); nothing works
//alert(viewContent.replace(/(<\S([^>]+)>)/ig,"")); nothing works
//alert(viewContent.replace(/<[^>]+>/ig,"")); nothing works
//alert(viewContent.replace(/<\/?[^>]+(>|$)/g, "")); nothing works
//alert(viewContent.replace(/<(?:.|\n)*?>/gm, '')); nothing works
}
In my first alert it is omitting tags..
But when i include tags dynamically ..it is not omitting the tags..so let me know how to strip the html tags dynamically using javascript , not jquery?
Modified version of your code that should work properly:
function getEditorText() {
var el = document.getElementById('iView'),
viewContent = el.innerText || el.textContent;
viewContent = viewContent.replace(/<([^>]+)>/ig,"")
.replace(/(<\S([^>]+)>)/ig,"")
.replace(/<[^>]+>/ig,"")
.replace(/<\/?[^>]+(>|$)/g, "")
.replace(/<(?:.|\n)*?>/gm, '');
el.innerHTML = viewContent;
}
Demo: http://jsfiddle.net/LRCXM/2/
Note that Firefox needs textContent instead of innerText.
Use innerText instead of innerHTML. Demo
you can use this regular expression to strip the html tags.
var strippedString=viewContent.replace(/<(?:.|\n)*?>/gm, '');
I have somewhere on website a specific text, let's say "lollypops", and I want to replace all the occurrences of this string with "marshmellows". The problem is that I don't know where exactly the text is. I know I could do something like:
$(body).html($(body).html().replace('lollypops', 'marshmellows'));
This would probably work, but I need to rewrite as little HTML as I can, so I'm thinking something like:
search for the string
find the closest parent element
rewrite only the closest parent element
replace this even in attributes, but not all, for example replace it in class, but not in src
In example, I would have structure like this
<body>
<div>
<div>
<p>
<h1>
<a>lollypops</a>
</h1>
</p>
<span>lollypops</span>
</div>
</div>
<p>
<span class="lollypops">Hello, World!</span>
<img src="/lollypops.jpg" alt="Cool image" />
</p>
<body>
In this example, every occurrence of "lollypops" would be replaced, only <img src="... would remain the same and the only elements that would actually be manipulated would be <a> and both <span>s.
Does anybody know how to do this?
You could do something like this:
$("span, p").each(function() {
var text = $(this).text();
text = text.replace("lollypops", "marshmellows");
$(this).text(text);
});
It will be better to mark all tags with text that needs to be examined with a suitable class name.
Also, this may have performance issues. jQuery or javascript in general aren't really suitable for this kind of operations. You are better off doing it server side.
You could do something this way:
$(document.body).find('*').each(function() {
if($(this).hasClass('lollypops')){ //class replacing..many ways to do this :)
$(this).removeClass('lollypops');
$(this).addClass('marshmellows');
}
var tmp = $(this).children().remove(); //removing and saving children to a tmp obj
var text = $(this).text(); //getting just current node text
text = text.replace(/lollypops/g, "marshmellows"); //replacing every lollypops occurence with marshmellows
$(this).text(text); //setting text
$(this).append(tmp); //re-append 'foundlings'
});
example: http://jsfiddle.net/steweb/MhQZD/
You could do something like this:
HTML
<div class="element">
<span>Hi, I am Murtaza</span>
</div>
jQuery
$(".element span").text(function(index, text) {
return text.replace('am', 'am not');
});
Below is the code I used to replace some text, with colored text. It's simple, took the text and replace it within an HTML tag. It works for each words in that class tags.
$('.hightlight').each(function(){
//highlight_words('going', this);
var high = 'going';
high = high.replace(/\W/g, '');
var str = high.split(" ");
var text = $(this).text();
text = text.replace(str, "<span style='color: blue'>"+str+"</span>");
$(this).html(text);
});
var string ='my string'
var new_string = string.replace('string','new string');
alert(string);
alert(new_string);
Why you just don't add a class to the string container and then replace the inner text ? Just like in this example.
HTML:
<div>
<div>
<p>
<h1>
<a class="swapText">lollipops</a>
</h1>
</p>
<span class="swapText">lollipops</span>
</div>
</div>
<p>
<span class="lollipops">Hello, World!</span>
<img src="/lollipops.jpg" alt="Cool image" />
</p>
jQuery:
$(document).ready(function() {
$('.swapText').text("marshmallows");
});