WebContent/student/kindeditor/src/html.js

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function _getCssList(css) {
	css = css.replace(/"/g, '"');
	
	var list = {},
		reg = /\s*([\w\-]+)\s*:([^;]*)(;|$)/g,
		match;
	while ((match = reg.exec(css))) {
		var key = _trim(match[1].toLowerCase()),
			val = _trim(_toHex(match[2]));
		list[key] = val;
	}
	return list;
}

function _getAttrList(tag) {
	var list = {},
		reg = /\s+(?:([\w\-:]+)|(?:([\w\-:]+)=([^\s"'<>]+))|(?:([\w\-:"]+)="([^"]*)")|(?:([\w\-:"]+)='([^']*)'))(?=(?:\s|\/|>)+)/g,
		match;
	while ((match = reg.exec(tag))) {
		var key = (match[1] || match[2] || match[4] || match[6]).toLowerCase(),
			val = (match[2] ? match[3] : (match[4] ? match[5] : match[7])) || '';
		list[key] = val;
	}
	return list;
}

function _addClassToTag(tag, className) {
	if (/\s+class\s*=/.test(tag)) {
		tag = tag.replace(/(\s+class=["']?)([^"']*)(["']?[\s>])/, function($0, $1, $2, $3) {
			if ((' ' + $2 + ' ').indexOf(' ' + className + ' ') < 0) {
				return $2 === '' ? $1 + className + $3 : $1 + $2 + ' ' + className + $3;
			} else {
				return $0;
			}
		});
	} else {
		tag = tag.substr(0, tag.length - 1) + ' class="' + className + '">';
	}
	return tag;
}

function _formatCss(css) {
	var str = '';
	_each(_getCssList(css), function(key, val) {
		str += key + ':' + val + ';';
	});
	return str;
}

function _formatUrl(url, mode, host, pathname) {
	mode = _undef(mode, '').toLowerCase();
	// 移除连续斜线，比如，http://localhost/upload/file/201205//maincus.swf
	// base64 data 除外
	if (url.substr(0, 5) != 'data:') {
		url = url.replace(/([^:])\/\//g, '$1/');
	}
	if (_inArray(mode, ['absolute', 'relative', 'domain']) < 0) {
		return url;
	}
	host = host || location.protocol + '//' + location.host;