Is there an easy way to convert HTML with multiple <br/"> tags to suitable <p> tags in Javascript?

Question

Let's say I have a bunch of HTML as shown below:

bla bla bla long paragraph here
<br/>
<br/>
bla bla bla more paragraph text
<br/>
<br/>

Is there an easy way with Javascript to convert it to the correct semantic tags <p>? For example:.

<p>
  bla bla bla long paragraph here
</p>
<p>
  bla bla bla more paragraph text
</p>

The output interval is not important, ideally it will work with any input interval.

I think I can try to create a regular expression, but before I do this, I wanted to make sure that I was :) I avoid the world of resentment and b) there was nothing else - I would try to do a Google search, but nothing yet invented.

Thanks for any advice!

Answer 1

. , /. jQuery, . FF3. , "" :)

$(function() {
  $.fn.pmaker = function() {
    var brs = 0;
    var nodes = [];

    function makeP()
    {
      // only bother doing this if we have nodes to stick into a P
      if (nodes.length) {
        var p = $("<p/>");
        p.insertBefore(nodes[0]);  // insert a new P before the content
        p.append(nodes); // add the children        
        nodes = [];
      }
      brs=0;
    }

    this.contents().each(function() {    
      if (this.nodeType == 3) // text node 
      {
        // if the text has non whitespace - reset the BR counter
        if (/\S+/.test(this.data)) {
          nodes.push(this);
          brs = 0;
        }
      } else if (this.nodeType == 1) {
        if (/br/i.test(this.tagName)) {
          if (++brs == 2) {
            $(this).remove(); // remove this BR from the dom
            $(nodes.pop()).remove(); // delete the previous BR from the array and the DOM
            makeP();
          } else {
            nodes.push(this);
          }
        } else if (/^(?:p)$/i.test(this.tagName)) {
          // these tags for the P break but dont scan within
          makeP();
        } else if (/^(?:div)$/i.test(this.tagName)) {
          // force a P break and scan within
          makeP();
          $(this).pmaker();
        } else {
          brs = 0; // some other tag - reset brs.
          nodes.push(this); // add the node 
          // specific nodes to not peek inside of - inline tags
          if (!(/^(?:b|i|strong|em|span|u)$/i.test(this.tagName))) {
            $(this).pmaker(); // peek inside for P needs            
          }
        } 
      } 
    });
    while ((brs--)>0) { // remove any extra BR at the end
      $(nodes.pop()).remove();
    }
    makeP();
    return this;
  };

  // run it against something:
  $(function(){ 
    $("#worker").pmaker();
  });

html, :

<div id="worker">
bla bla bla long <b>paragraph</b> here
<br/>
<br/>
bla bla bla more paragraph text
<br/>
<br/>
this text should end up in a P
<div class='test'>
  and so should this
  <br/>
  <br/>
  and this<br/>without breaking at the single BR
</div>
and then we have the a "buggy" clause
<p>
  fear the real P!
</p>
and a trailing br<br/>
</div>

:

<div id="worker"><p>
bla bla bla long <b>paragraph</b> here
</p>
<p>
bla bla bla more paragraph text
</p>
<p>
this text should end up in a P
</p><div class="test"><p>
  and so should this
  </p>
  <p>
  and this<br/>without breaking at the single BR
</p></div><p>
and then we have the a "buggy" clause
</p><p>
  fear the real P!
</p><p>
and a trailing br</p>
</div>

Answer 2

+ . , "br", "p" . , , .

, , "p".

(prototype.js), .

Answer 3

, ( <br /> ), <br /> .

:

• <br /><br /> </p>\n<p>
• , <p></p> ,

, :

var ConvertToParagraphs = function(text) {
    var lineBreaksRemoved = text.replace(/\n/g, "");
    var wrappedInParagraphs = "<p>" + lineBreaksRemoved + "</p>";
    var brsRemoved = wrappedInParagraphs.replace(/<br[^>]*>[\s]*<br[^>]*>/gi, "</p>\n<p>");
    var emptyParagraphsRemoved = brsRemoved.replace(/<p><\/p>/g, "");
    return emptyParagraphsRemoved;
}

. , , , , .

:

bla bla bla long paragraph here
<br/>
<br/>
bla bla bla more paragraph text
<br/>
<br/>

:

<p>bla bla bla long paragraph here</p>
<p>bla bla bla more paragraph text</p>

- <br />, .

Answer 4

:

• RegExp: br- .
• RegExp: .
• RegExp: .
• Array.split('\n') .

This should give an array with all the “real” paragraphs (theoretically). Then you can just iterate over it and wrap each line in p-tags.