--- /dev/null
+/*
+ * HTML Parser By John Resig (ejohn.org)
+ * Original code by Erik Arvidsson, Mozilla Public License
+ * http://erik.eae.net/simplehtmlparser/simplehtmlparser.js
+ *
+ * // Use like so:
+ * HTMLParser(htmlString, {
+ * start: function(tag, attrs, unary) {},
+ * end: function(tag) {},
+ * chars: function(text) {},
+ * comment: function(text) {}
+ * });
+ *
+ * // or to get an XML string:
+ * HTMLtoXML(htmlString);
+ *
+ * // or to get an XML DOM Document
+ * HTMLtoDOM(htmlString);
+ *
+ * // or to inject into an existing document/DOM node
+ * HTMLtoDOM(htmlString, document);
+ * HTMLtoDOM(htmlString, document.body);
+ *
+ */
+
+(function(){
+
+ // Regular Expressions for parsing tags and attributes
+ var startTag = /^<(\w+)((?:\s+[\w:-]+(?:\s*=\s*(?:(?:"[^"]*")|(?:'[^']*')|[^>\s]+))?)*)\s*(\/?)>/,
+ endTag = /^<\/(\w+)[^>]*>/,
+ attr = /([\w:-]+)(?:\s*=\s*(?:(?:"((?:\\.|[^"])*)")|(?:'((?:\\.|[^'])*)')|([^>\s]+)))?/g,
+ doctype = /<!DOCTYPE [^>]+>/;
+
+ // Empty Elements - HTML 4.01
+ var empty = makeMap("area,base,basefont,br,col,frame,hr,img,input,isindex,link,meta,param,embed");
+
+ // Block Elements - HTML 4.01
+ var block = makeMap("address,applet,blockquote,button,center,dd,del,dir,div,dl,dt,fieldset,form,frameset,hr,iframe,ins,isindex,li,map,menu,noframes,noscript,object,ol,p,pre,script,table,tbody,td,tfoot,th,thead,tr,ul");
+
+ // Inline Elements - HTML 4.01
+ var inline = makeMap("a,abbr,acronym,applet,b,basefont,bdo,big,br,button,cite,code,del,dfn,em,font,i,iframe,img,input,ins,kbd,label,map,object,q,s,samp,script,select,small,span,strike,strong,sub,sup,textarea,tt,u,var");
+
+ // Elements that you can, intentionally, leave open
+ // (and which close themselves)
+ var closeSelf = makeMap("colgroup,dd,dt,li,options,p,td,tfoot,th,thead,tr");
+
+ // Attributes that have their values filled in disabled="disabled"
+ var fillAttrs = makeMap("checked,compact,declare,defer,disabled,ismap,multiple,nohref,noresize,noshade,nowrap,readonly,selected");
+
+ // Special Elements (can contain anything)
+ var special = makeMap("script,style");
+
+ var HTMLParser = this.HTMLParser = function( html, handler ) {
+ var index, chars, match, stack = [], last = html;
+ stack.last = function(){
+ return this[ this.length - 1 ];
+ };
+
+ while ( html ) {
+ chars = true;
+
+ // Make sure we're not in a script or style element
+ if ( !stack.last() || !special[ stack.last() ] ) {
+
+ // Comment
+ if ( html.indexOf("<!--") == 0 ) {
+ index = html.indexOf("-->");
+
+ if ( index >= 0 ) {
+ if ( handler.comment )
+ handler.comment( html.substring( 4, index ) );
+ html = html.substring( index + 3 );
+ chars = false;
+ }
+ }
+ else if ( html.indexOf("<!DOCTYPE") == 0 ) {
+ match = html.match( doctype );
+
+ if ( match ) {
+ if ( handler.doctype )
+ handler.doctype( match[0] );
+ html = html.substring( match[0].length );
+ chars = false;
+ }
+ // end tag
+ } else if ( html.indexOf("</") == 0 ) {
+ match = html.match( endTag );
+
+ if ( match ) {
+ html = html.substring( match[0].length );
+ match[0].replace( endTag, parseEndTag );
+ chars = false;
+ }
+
+ // start tag
+ } else if ( html.indexOf("<") == 0 ) {
+ match = html.match( startTag );
+
+ if ( match ) {
+ html = html.substring( match[0].length );
+ match[0].replace( startTag, parseStartTag );
+ chars = false;
+ }
+ }
+
+ if ( chars ) {
+ index = html.indexOf("<");
+
+ var text = index < 0 ? html : html.substring( 0, index );
+ html = index < 0 ? "" : html.substring( index );
+
+ if ( handler.chars )
+ handler.chars( text );
+ }
+
+ } else {
+ html = html.replace(new RegExp("(.*)<\/" + stack.last() + "[^>]*>"), function(all, text){
+ text = text.replace(/<!--(.*?)-->/g, "$1")
+ .replace(/<!\[CDATA\[(.*?)]]>/g, "$1");
+
+ if ( handler.chars )
+ handler.chars( text );
+
+ return "";
+ });
+
+ parseEndTag( "", stack.last() );
+ }
+
+ if ( html == last )
+ throw "Parse Error: " + html;
+ last = html;
+ }
+
+ // Clean up any remaining tags
+ parseEndTag();
+
+ function parseStartTag( tag, tagName, rest, unary ) {
+ if ( block[ tagName ] ) {
+ while ( stack.last() && inline[ stack.last() ] ) {
+ parseEndTag( "", stack.last() );
+ }
+ }
+
+ if ( closeSelf[ tagName ] && stack.last() == tagName ) {
+ parseEndTag( "", tagName );
+ }
+
+ unary = empty[ tagName ] || !!unary;
+
+ if ( !unary )
+ stack.push( tagName );
+
+ if ( handler.start ) {
+ var attrs = [];
+
+ rest.replace(attr, function(match, name) {
+ var value = arguments[2] ? arguments[2] :
+ arguments[3] ? arguments[3] :
+ arguments[4] ? arguments[4] :
+ fillAttrs[name] ? name : "";
+
+ attrs.push({
+ name: name,
+ value: value,
+ escaped: value.replace(/(^|[^\\])"/g, '$1\\\"') //"
+ });
+ });
+
+ if ( handler.start )
+ handler.start( tagName, attrs, unary );
+ }
+ }
+
+ function parseEndTag( tag, tagName ) {
+ // If no tag name is provided, clean shop
+ if ( !tagName )
+ var pos = 0;
+
+ // Find the closest opened tag of the same type
+ else
+ for ( var pos = stack.length - 1; pos >= 0; pos-- )
+ if ( stack[ pos ] == tagName )
+ break;
+
+ if ( pos >= 0 ) {
+ // Close all the open elements, up the stack
+ for ( var i = stack.length - 1; i >= pos; i-- )
+ if ( handler.end )
+ handler.end( stack[ i ] );
+
+ // Remove the open elements from the stack
+ stack.length = pos;
+ }
+ }
+ };
+
+ this.HTMLtoXML = function( html ) {
+ var results = "";
+
+ HTMLParser(html, {
+ start: function( tag, attrs, unary ) {
+ results += "<" + tag;
+
+ for ( var i = 0; i < attrs.length; i++ )
+ results += " " + attrs[i].name + '="' + attrs[i].escaped + '"';
+
+ results += (unary ? "/" : "") + ">";
+ },
+ end: function( tag ) {
+ results += "</" + tag + ">";
+ },
+ chars: function( text ) {
+ results += text;
+ },
+ comment: function( text ) {
+ results += "<!--" + text + "-->";
+ }
+ });
+
+ return results;
+ };
+
+ this.HTMLtoDOM = function( html, doc ) {
+ // There can be only one of these elements
+ var one = makeMap("html,head,body,title");
+
+ // Enforce a structure for the document
+ var structure = {
+ link: "head",
+ base: "head"
+ };
+
+ if ( !doc ) {
+ if ( typeof DOMDocument != "undefined" )
+ doc = new DOMDocument();
+ else if ( typeof document != "undefined" && document.implementation && document.implementation.createDocument )
+ doc = document.implementation.createDocument("", "", null);
+ else if ( typeof ActiveX != "undefined" )
+ doc = new ActiveXObject("Msxml.DOMDocument");
+
+ } else
+ doc = doc.ownerDocument ||
+ doc.getOwnerDocument && doc.getOwnerDocument() ||
+ doc;
+
+ var elems = [],
+ documentElement = doc.documentElement ||
+ doc.getDocumentElement && doc.getDocumentElement();
+
+ // If we're dealing with an empty document then we
+ // need to pre-populate it with the HTML document structure
+ if ( !documentElement && doc.createElement ) (function(){
+ var html = doc.createElement("html");
+ var head = doc.createElement("head");
+ head.appendChild( doc.createElement("title") );
+ html.appendChild( head );
+ html.appendChild( doc.createElement("body") );
+ doc.appendChild( html );
+ })();
+
+ // Find all the unique elements
+ if ( doc.getElementsByTagName )
+ for ( var i in one )
+ one[ i ] = doc.getElementsByTagName( i )[0];
+
+ // If we're working with a document, inject contents into
+ // the body element
+ var curParentNode = one.body;
+
+ HTMLParser( html, {
+ start: function( tagName, attrs, unary ) {
+ // If it's a pre-built element, then we can ignore
+ // its construction
+ if ( one[ tagName ] ) {
+ curParentNode = one[ tagName ];
+ return;
+ }
+
+ var elem = doc.createElement( tagName );
+
+ for ( var attr in attrs )
+ elem.setAttribute( attrs[ attr ].name, attrs[ attr ].value );
+
+ if ( structure[ tagName ] && typeof one[ structure[ tagName ] ] != "boolean" )
+ one[ structure[ tagName ] ].appendChild( elem );
+
+ else if ( curParentNode && curParentNode.appendChild )
+ curParentNode.appendChild( elem );
+
+ if ( !unary ) {
+ elems.push( elem );
+ curParentNode = elem;
+ }
+ },
+ end: function( tag ) {
+ elems.length -= 1;
+
+ // Init the new parentNode
+ curParentNode = elems[ elems.length - 1 ];
+ },
+ chars: function( text ) {
+ curParentNode.appendChild( doc.createTextNode( text ) );
+ },
+ comment: function( text ) {
+ // create comment node
+ }
+ });
+
+ return doc;
+ };
+
+ function makeMap(str){
+ var obj = {}, items = str.split(",");
+ for ( var i = 0; i < items.length; i++ )
+ obj[ items[i] ] = true;
+ return obj;
+ }
+})();
\ No newline at end of file
--- /dev/null
+(function(){
+
+ function byId(id) {
+ return document.getElementById(id);
+ }
+
+ var options = {
+ shouldRemoveComments: function(){
+ return byId('remove-comments').checked;
+ },
+ shouldCollapseWhitespace: function(){
+ return byId('collapse-whitespace').checked;
+ },
+ shouldCollapseBooleanAttributes: function(){
+ return byId('collapse-boolean-attributes').checked;
+ },
+ shouldRemoveAttributeQuotes: function(){
+ return byId('remove-attribute-quotes').checked;
+ },
+ shouldRemoveRedundantAttributes: function(){
+ return byId('remove-redundant-attributes').checked;
+ },
+ shouldUseShortDoctype: function() {
+ return byId('use-short-doctype').checked;
+ }
+ };
+
+ function escapeHTML(str) {
+ return String(str).replace(/&/g, '&').replace(/</g, '<').replace(/>/g, '>');
+ }
+ function collapseWhitespace(str) {
+ return str.replace(/^\s+/, ' ').replace(/\s+$/, ' ');
+ }
+ function canRemoveAttributeQuotes(value) {
+ return /^[\w-]+$/.test(value);
+ }
+ function isAttributeRedundant(tag, attributeName, attributeValue) {
+ return (
+ (tag === 'script' &&
+ attributeName === 'language' &&
+ /^javascript$/i.test(attributeValue)) ||
+
+ (tag === 'form' &&
+ attributeName === 'method' &&
+ /^get$/i.test(attributeValue)) ||
+
+ (tag === 'input' &&
+ attributeName === 'type' &&
+ /^text$/i.test(attributeValue))
+ );
+ }
+ function isBooleanAttribute(attributeName) {
+ return /^(?:checked|disabled|selected|readonly)$/.test(attributeName);
+ }
+
+ function minify(value) {
+ var results = '';
+ HTMLParser(value, {
+ start: function( tag, attrs, unary ) {
+ results += '<' + tag;
+ for ( var i = 0, len = attrs.length; i < len; i++ ) {
+
+ if (options.shouldRemoveRedundantAttributes() &&
+ isAttributeRedundant(tag, attrs[i].name, attrs[i].value)) {
+ continue;
+ }
+
+ var attributeValue;
+ if (options.shouldRemoveAttributeQuotes() &&
+ canRemoveAttributeQuotes(attrs[i].escaped)) {
+ attributeValue = attrs[i].escaped;
+ }
+ else {
+ attributeValue = '"' + attrs[i].escaped + '"';
+ }
+
+ var attributeFragment;
+ if (options.shouldCollapseBooleanAttributes() &&
+ isBooleanAttribute(attrs[i].name)) {
+ attributeFragment = attrs[i].name;
+ }
+ else {
+ attributeFragment = attrs[i].name + '=' + attributeValue;
+ }
+ results += ' ' + attributeFragment;
+ }
+ results += '>';
+ },
+ end: function( tag ) {
+ results += '</' + tag + '>';
+ },
+ chars: function( text ) {
+ if (options.shouldCollapseWhitespace()) {
+ results += collapseWhitespace(text);
+ }
+ else {
+ results += text;
+ }
+ },
+ comment: function( text ) {
+ results += (options.shouldRemoveComments() ? '' : ('<!--' + text + '-->'));
+ },
+ doctype: function(doctype) {
+ results += (options.shouldUseShortDoctype() ? '<!DOCTYPE html>' : doctype);
+ }
+ });
+ return results;
+ }
+
+ byId('convert-btn').onclick = function() {
+ try {
+ var originalValue = byId('input').value,
+ minifiedValue = minify(originalValue),
+ diff = originalValue.length - minifiedValue.length;
+
+ byId('output').value = minifiedValue;
+
+ byId('stats').innerHTML = '<span class="success">' +
+ 'Original size: <strong>' + originalValue.length + '</strong>' +
+ '. Minified size: <strong>' + minifiedValue.length + '</strong>' +
+ '. Savings: <strong>' + ((100 * diff) / originalValue.length).toFixed(2) + '</strong>%.' +
+ '</span>';
+ }
+ catch(err) {
+ byId('output').value = '';
+ byId('stats').innerHTML = '<span class="failure">' + escapeHTML(err) + '</span>';
+ }
+ };
+
+})();
\ No newline at end of file
public / html-minifier.git / commitdiff