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How to force Xinha to write <br> instead of <br />
Monday - Apr 23rd 2012 - by - (0 comments)

Xinha is a very handy text-editor which can easily be applied on any textarea field. See the following picture for an example:

Xinha form editor

Although the Xinha project is old and probably dead (the last update dates from May 2010) it still is a very effective TextArea-Editor and easy to install.

There was only one issue which bugged me for a long time: Instead of writing <br> tags as linebreak, the XML version <br /> was always used.
This is fine if one has declared his page encoding with the XHTML standard but the W3C validator complains when the page's encoding is set to HTML 4.01.

Unfortunately there is no setting in Xinha to set the encoding output but it is manually possible to handle this problem.

In XinhaCore.js set the HTML output method from DOMwalk (default) to TransformInnerHTML:

/** This determines the method how the HTML output is generated.
  *  There are two choices:
  *
  *
  *
DOMwalk This is the classic and proven method. It recusively traverses the DOM tree
  *           and builds the HTML string "from scratch". Tends to be a bit slow, especially in IE.
TransformInnerHTML This method uses the JavaScript innerHTML property and relies on Regular Expressions to produce
  *            clean XHTML output. This method is much faster than the other one.

  *
  *  Default: "DOMwalk"
  *
  * @type String
  */
  //this.getHtmlMethod = 'DOMwalk';
  this.getHtmlMethod = 'TransformInnerHTML';

Then in modules/GetHtml/TransformInnerHTML.js the replace(c[4] line needs to be commented-out. This code is responsible to forward-slash-close single tags:

Xinha.prototype.cleanHTML = function(sHtml) {
        var c = Xinha.RegExpCache;
        sHtml = sHtml.
                replace(c[0], function(str) { return str.toLowerCase(); } ).//lowercase tags/attribute names
                replace(c[1], ' ').//strip _moz attributes
                replace(c[12], ' ').//strip contenteditable
                replace(c[2], '="$2$4$5"$3').//add attribute quotes
                replace(c[21], ' ').//strip empty attributes
                replace(c[11], function(str, p1, p2) { return ' '+p1.toLowerCase()+p2; }).//lowercase attribute names
                replace(c[3], '>').//strip singlet terminators
                replace(c[9], '$1>').//trim whitespace
                replace(c[5], '$1$3="$3"$5').//expand singlet attributes
                //replace(c[4], '<$1$2 />').//terminate singlet tags
                replace(c[4], '<$1$2>').//terminate singlet tags
                replace(c[6], '$1$2').//check quote nesting
                replace(c[7], '&').//expand query ampersands
                replace(c[8], '<').//strip tagstart whitespace
                replace(c[10], ' ');//trim extra whitespace
        if(Xinha.is_ie && c[13].test(sHtml)) {

As you see, I commented-out the original line to terminate singlet tags and replaced it by the following line where the tag is closed without a forward-slash.

From now on Xinha will write <br> tags instead of <br />.

 

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