代码初始化

public/assets/libs/require-css/normalize.js

@@ -0,0 +1,141 @@
+//>>excludeStart('excludeRequireCss', pragmas.excludeRequireCss)
+/*
+ * css.normalize.js
+ *
+ * CSS Normalization
+ *
+ * CSS paths are normalized based on an optional basePath and the RequireJS config
+ *
+ * Usage:
+ *   normalize(css, fromBasePath, toBasePath);
+ *
+ * css: the stylesheet content to normalize
+ * fromBasePath: the absolute base path of the css relative to any root (but without ../ backtracking)
+ * toBasePath: the absolute new base path of the css relative to the same root
+ * 
+ * Absolute dependencies are left untouched.
+ *
+ * Urls in the CSS are picked up by regular expressions.
+ * These will catch all statements of the form:
+ *
+ * url(*)
+ * url('*')
+ * url("*")
+ * 
+ * @import '*'
+ * @import "*"
+ *
+ * (and so also @import url(*) variations)
+ *
+ * For urls needing normalization
+ *
+ */
+
+define(function() {
+  
+  // regular expression for removing double slashes
+  // eg http://www.example.com//my///url/here -> http://www.example.com/my/url/here
+  var slashes = /([^:])\/+/g
+  var removeDoubleSlashes = function(uri) {
+    return uri.replace(slashes, '$1/');
+  }
+
+  // given a relative URI, and two absolute base URIs, convert it from one base to another
+  var protocolRegEx = /[^\:\/]*:\/\/([^\/])*/;
+  var absUrlRegEx = /^(\/|data:)/;
+  function convertURIBase(uri, fromBase, toBase) {
+    if (uri.match(absUrlRegEx) || uri.match(protocolRegEx))
+      return uri;
+    uri = removeDoubleSlashes(uri);
+    // if toBase specifies a protocol path, ensure this is the same protocol as fromBase, if not
+    // use absolute path at fromBase
+    var toBaseProtocol = toBase.match(protocolRegEx);
+    var fromBaseProtocol = fromBase.match(protocolRegEx);
+    if (fromBaseProtocol && (!toBaseProtocol || toBaseProtocol[1] != fromBaseProtocol[1] || toBaseProtocol[2] != fromBaseProtocol[2]))
+      return absoluteURI(uri, fromBase);
+    
+    else {
+      return relativeURI(absoluteURI(uri, fromBase), toBase);
+    }
+  };
+  
+  // given a relative URI, calculate the absolute URI
+  function absoluteURI(uri, base) {
+    if (uri.substr(0, 2) == './')
+      uri = uri.substr(2);
+
+    // absolute urls are left in tact
+    if (uri.match(absUrlRegEx) || uri.match(protocolRegEx))
+      return uri;
+    
+    var baseParts = base.split('/');
+    var uriParts = uri.split('/');
+    
+    baseParts.pop();
+    
+    while (curPart = uriParts.shift())
+      if (curPart == '..')
+        baseParts.pop();
+      else
+        baseParts.push(curPart);
+    
+    return baseParts.join('/');
+  };
+
+
+  // given an absolute URI, calculate the relative URI
+  function relativeURI(uri, base) {
+    
+    // reduce base and uri strings to just their difference string
+    var baseParts = base.split('/');
+    baseParts.pop();
+    base = baseParts.join('/') + '/';
+    i = 0;
+    while (base.substr(i, 1) == uri.substr(i, 1))
+      i++;
+    while (base.substr(i, 1) != '/')
+      i--;
+    base = base.substr(i + 1);
+    uri = uri.substr(i + 1);
+
+    // each base folder difference is thus a backtrack
+    baseParts = base.split('/');
+    var uriParts = uri.split('/');
+    out = '';
+    while (baseParts.shift())
+      out += '../';
+    
+    // finally add uri parts
+    while (curPart = uriParts.shift())
+      out += curPart + '/';
+    
+    return out.substr(0, out.length - 1);
+  };
+  
+  var normalizeCSS = function(source, fromBase, toBase) {
+
+    fromBase = removeDoubleSlashes(fromBase);
+    toBase = removeDoubleSlashes(toBase);
+
+    var urlRegEx = /@import\s*("([^"]*)"|'([^']*)')|url\s*\((?!#)\s*(\s*"([^"]*)"|'([^']*)'|[^\)]*\s*)\s*\)/ig;
+    var result, url, source;
+
+    while (result = urlRegEx.exec(source)) {
+      url = result[3] || result[2] || result[5] || result[6] || result[4];
+      var newUrl;
+      newUrl = convertURIBase(url, fromBase, toBase);
+      var quoteLen = result[5] || result[6] ? 1 : 0;
+      source = source.substr(0, urlRegEx.lastIndex - url.length - quoteLen - 1) + newUrl + source.substr(urlRegEx.lastIndex - quoteLen - 1);
+      urlRegEx.lastIndex = urlRegEx.lastIndex + (newUrl.length - url.length);
+    }
+    
+    return source;
+  };
+  
+  normalizeCSS.convertURIBase = convertURIBase;
+  normalizeCSS.absoluteURI = absoluteURI;
+  normalizeCSS.relativeURI = relativeURI;
+  
+  return normalizeCSS;
+});
+//>>excludeEnd('excludeRequireCss')