X-Git-Url: http://git.asbjorn.biz/?a=blobdiff_plain;f=src%2Fselector%2Fselector.js;h=f75bae3c4756fe80d0d8c98ecd17269bc098a576;hb=346ceacce3fb6f83701d742ce0835d4db0ba98aa;hp=6ad8e5cca8a85ffa46edf1e53969d3e82c459860;hpb=7c6100f5ed840b49e8e0de1f9eb90ea2ef1c47ef;p=jquery.git diff --git a/src/selector/selector.js b/src/selector/selector.js index 6ad8e5c..f75bae3 100644 --- a/src/selector/selector.js +++ b/src/selector/selector.js @@ -1,3 +1,11 @@ + +var chars = jQuery.browser.safari && parseInt(jQuery.browser.version) < 417 ? + "(?:[\\w*_-]|\\\\.)" : + "(?:[\\w\u0128-\uFFFF*_-]|\\\\.)", + quickChild = new RegExp("^[/>]\\s*(" + chars + "+)"), + quickID = new RegExp("^(" + chars + "+)(#)(" + chars + "+)"), + quickClass = new RegExp("^([#.]?)(" + chars + "*)"); + jQuery.extend({ expr: { "": "m[2]=='*'||jQuery.nodeName(a,m[2])", @@ -14,17 +22,16 @@ jQuery.extend({ odd: "i%2", // Child Checks - "nth-child": "jQuery.nth(a.parentNode.firstChild,m[3],'nextSibling',a)==a", - "first-child": "jQuery.nth(a.parentNode.firstChild,1,'nextSibling')==a", + "first-child": "a.parentNode.getElementsByTagName('*')[0]==a", "last-child": "jQuery.nth(a.parentNode.lastChild,1,'previousSibling')==a", - "only-child": "jQuery.sibling(a.parentNode.firstChild).length==1", + "only-child": "!jQuery.nth(a.parentNode.lastChild,2,'previousSibling')", // Parent Checks parent: "a.firstChild", empty: "!a.firstChild", // Text Check - contains: "jQuery.fn.text.apply([a]).indexOf(m[3])>=0", + contains: "(a.textContent||a.innerText||'').indexOf(m[3])>=0", // Visibility visible: '"hidden"!=a.type&&jQuery.css(a,"display")!="none"&&jQuery.css(a,"visibility")!="hidden"', @@ -46,29 +53,24 @@ jQuery.extend({ image: "'image'==a.type", reset: "'reset'==a.type", button: '"button"==a.type||jQuery.nodeName(a,"button")', - input: "/input|select|textarea|button/i.test(a.nodeName)" - }, - ".": "jQuery.className.has(a,m[2])", - "@": { - "=": "z==m[4]", - "!=": "z!=m[4]", - "^=": "z&&!z.indexOf(m[4])", - "$=": "z&&z.substr(z.length - m[4].length,m[4].length)==m[4]", - "*=": "z&&z.indexOf(m[4])>=0", - "": "z", - _resort: function(m){ - return ["", m[1], m[3], m[2], m[5]]; - }, - _prefix: "var z=a[m[3]];if(!z||/href|src/.test(m[3]))z=jQuery.attr(a,m[3]);" + input: "/input|select|textarea|button/i.test(a.nodeName)", + + // :has() + has: "jQuery.find(m[3],a).length", + + // :header + header: "/h\\d/i.test(a.nodeName)" }, + // DEPRECATED "[": "jQuery.find(m[2],a).length" }, // The regular expressions that power the parsing engine parse: [ // Match: [@value='test'], [@foo] - /^\[ *(@)([\w-]+) *([!*$^=]*) *('?"?)(.*?)\4 *\]/, + /^\[ *(@)([\w-]+) *([!*$^~=]*) *('?"?)(.*?)\4 *\]/, + // DEPRECATED // Match: [div], [div p] /^(\[)\s*(.*?(\[.*?\])?[^[]*?)\s*\]/, @@ -76,18 +78,7 @@ jQuery.extend({ /^(:)([\w-]+)\("?'?(.*?(\(.*?\))?[^(]*?)"?'?\)/, // Match: :even, :last-chlid, #id, .class - new RegExp("^([:.#]*)(" + - ( jQuery.chars = "(?:[\\w\u0128-\uFFFF*_-]|\\\\.)" ) + "+)") - ], - - token: [ - /^(\/?\.\.)/, "a.parentNode", - /^(>|\/)/, "jQuery.sibling(a.firstChild)", - /^(\+)/, "jQuery.nth(a,2,'nextSibling')", - /^(~)/, function(a){ - var s = jQuery.sibling(a.parentNode.firstChild); - return s.slice(jQuery.inArray(a,s) + 1); - } + new RegExp("^([:.#]*)(" + chars + "+)") ], multiFilter: function( expr, elems, not ) { @@ -121,11 +112,13 @@ jQuery.extend({ // Set the correct context (if none is provided) context = context || document; + // DEPRECATED // Handle the common XPath // expression if ( !t.indexOf("//") ) { - context = context.documentElement; + //context = context.documentElement; t = t.substr(2,t.length); + // DEPRECATED // And the / root expression } else if ( !t.indexOf("/") && !context.ownerDocument ) { context = context.documentElement; @@ -143,20 +136,23 @@ jQuery.extend({ var r = []; last = t; + // DEPRECATED t = jQuery.trim(t).replace( /^\/\//, "" ); var foundToken = false; // An attempt at speeding up child selectors that // point to a specific element tag - var re = new RegExp("^[/>]\\s*(" + jQuery.chars + "+)"); + var re = quickChild; var m = re.exec(t); if ( m ) { + var nodeName = m[1].toUpperCase(); + // Perform our own iteration and filter for ( var i = 0; ret[i]; i++ ) for ( var c = ret[i].firstChild; c; c = c.nextSibling ) - if ( c.nodeType == 1 && ( m[1] == "*" || jQuery.nodeName(c, m[1]) ) ) + if ( c.nodeType == 1 && (nodeName == "*" || c.nodeName.toUpperCase() == nodeName.toUpperCase()) ) r.push( c ); ret = r; @@ -164,24 +160,38 @@ jQuery.extend({ if ( t.indexOf(" ") == 0 ) continue; foundToken = true; } else { - // Look for pre-defined expression tokens - for ( var i = 0, tl = jQuery.token.length; i < tl; i += 2 ) { - // Attempt to match each, individual, token in - // the specified order - var re = jQuery.token[i], fn = jQuery.token[i+1]; - var m = re.exec(t); - - // If the token match was found - if ( m ) { - // Map it against the token's handler - r = ret = jQuery.map( ret, jQuery.isFunction( fn ) ? - fn : new Function( "a", "return " + fn ) ); - - // And remove the token - t = jQuery.trim( t.replace( re, "" ) ); - foundToken = true; - break; - } + // (.. and /) DEPRECATED + re = /^((\/?\.\.)|([>\/+~]))\s*(\w*)/i; + + if ( (m = re.exec(t)) != null ) { + r = []; + + var nodeName = m[4], mergeNum = jQuery.mergeNum++; + m = m[1]; + + for ( var j = 0, rl = ret.length; j < rl; j++ ) + if ( m.indexOf("..") < 0 ) { + var n = m == "~" || m == "+" ? ret[j].nextSibling : ret[j].firstChild; + for ( ; n; n = n.nextSibling ) + if ( n.nodeType == 1 ) { + if ( m == "~" && n.mergeNum == mergeNum ) break; + + if (!nodeName || n.nodeName.toUpperCase() == nodeName.toUpperCase() ) { + if ( m == "~" ) n.mergeNum = mergeNum; + r.push( n ); + } + + if ( m == "+" ) break; + } + // DEPRECATED + } else + r.push( ret[j].parentNode ); + + ret = r; + + // And remove the token + t = jQuery.trim( t.replace( re, "" ) ); + foundToken = true; } } @@ -203,8 +213,8 @@ jQuery.extend({ t = " " + t.substr(1,t.length); } else { - // Optomize for the case nodeName#idName - var re2 = new RegExp("^(" + jQuery.chars + "+)(#)(" + jQuery.chars + "+)"); + // Optimize for the case nodeName#idName + var re2 = quickID; var m = re2.exec(t); // Re-organize the results, so that they're consistent @@ -214,7 +224,7 @@ jQuery.extend({ } else { // Otherwise, do a traditional filter check for // ID, class, and element selectors - re2 = new RegExp("^([#.]?)(" + jQuery.chars + "*)"); + re2 = quickClass; m = re2.exec(t); } @@ -223,7 +233,7 @@ jQuery.extend({ var elem = ret[ret.length-1]; // Try to do a global search by ID, where we can - if ( m[1] == "#" && elem && elem.getElementById ) { + if ( m[1] == "#" && elem && elem.getElementById && !jQuery.isXMLDoc(elem) ) { // Optimization for HTML document case var oid = elem.getElementById(m[2]); @@ -240,7 +250,7 @@ jQuery.extend({ // We need to find all descendant elements for ( var i = 0; ret[i]; i++ ) { // Grab the tag name being searched for - var tag = m[1] != "" || m[0] == "" ? "*" : m[2]; + var tag = m[1] == "#" && m[3] ? m[3] : m[1] != "" || m[0] == "" ? "*" : m[2]; // Handle IE7 being really dumb about s if ( tag == "*" && ret[i].nodeName.toLowerCase() == "object" ) @@ -326,12 +336,7 @@ jQuery.extend({ // Remove what we just matched t = t.substring( m[0].length ); - // Re-organize the first match - if ( jQuery.expr[ m[1] ]._resort ) - m = jQuery.expr[ m[1] ]._resort( m ); - m[2] = m[2].replace(/\\/g, ""); - break; } } @@ -348,16 +353,69 @@ jQuery.extend({ else if ( m[1] == "." ) r = jQuery.classFilter(r, m[2], not); + else if ( m[1] == "@" ) { + var tmp = [], type = m[3]; + + for ( var i = 0, rl = r.length; i < rl; i++ ) { + var a = r[i], z = a[ jQuery.props[m[2]] || m[2] ]; + + if ( z == null || /href|src|selected/.test(m[2]) ) + z = jQuery.attr(a,m[2]) || ''; + + if ( (type == "" && !!z || + type == "=" && z == m[5] || + type == "!=" && z != m[5] || + type == "^=" && z && !z.indexOf(m[5]) || + type == "$=" && z.substr(z.length - m[5].length) == m[5] || + (type == "*=" || type == "~=") && z.indexOf(m[5]) >= 0) ^ not ) + tmp.push( a ); + } + + r = tmp; + + // We can get a speed boost by handling nth-child here + } else if ( m[1] == ":" && m[2] == "nth-child" ) { + var num = jQuery.mergeNum++, tmp = [], + test = /(\d*)n\+?(\d*)/.exec( + m[3] == "even" && "2n" || m[3] == "odd" && "2n+1" || + !/\D/.test(m[3]) && "n+" + m[3] || m[3]), + first = (test[1] || 1) - 0, last = test[2] - 0; + + for ( var i = 0, rl = r.length; i < rl; i++ ) { + var node = r[i], parentNode = node.parentNode; + + if ( num != parentNode.mergeNum ) { + var c = 1; + + for ( var n = parentNode.firstChild; n; n = n.nextSibling ) + if ( n.nodeType == 1 ) + n.nodeIndex = c++; + + parentNode.mergeNum = num; + } + + var add = false; + + if ( first == 1 ) { + if ( last == 0 || node.nodeIndex == last ) + add = true; + } else if ( (node.nodeIndex + last) % first == 0 ) + add = true; + + if ( add ^ not ) + tmp.push( node ); + } + + r = tmp; + // Otherwise, find the expression to execute - else { + } else { var f = jQuery.expr[m[1]]; if ( typeof f != "string" ) f = jQuery.expr[m[1]][m[2]]; // Build a custom macro to enclose it - eval("f = function(a,i){" + - ( jQuery.expr[ m[1] ]._prefix || "" ) + - "return " + f + "}"); + f = eval("false||function(a,i){return " + f + "}"); // Execute it against the current filter r = jQuery.grep( r, f, not ); @@ -403,11 +461,11 @@ jQuery.extend({ nth: function(cur,result,dir,elem){ result = result || 1; var num = 0; - for ( ; cur; cur = cur[dir] ) { - if ( cur.nodeType == 1 ) num++; - if ( num == result || result == "even" && num % 2 == 0 && num > 1 && cur == elem || - result == "odd" && num % 2 == 1 && cur == elem ) break; - } + + for ( ; cur; cur = cur[dir] ) + if ( cur.nodeType == 1 && ++num == result ) + break; + return cur; },