-/*!
- * LESS - Leaner CSS v1.5.1
- * http://lesscss.org
- *
- * Copyright (c) 2009-2013, Alexis Sellier <self@cloudhead.net>
- * Licensed under the Apache v2 License.
- *
- * @licence
- */
-
-
-
-(function (window, undefined) {//
-// Stub out `require` in the browser
-//
-function require(arg) {
- return window.less[arg.split('/')[1]];
-};
-
-
-if (typeof(window.less) === 'undefined' || typeof(window.less.nodeType) !== 'undefined') { window.less = {}; }
-less = window.less;
-tree = window.less.tree = {};
-less.mode = 'browser';
-
-var less, tree;
-
-// Node.js does not have a header file added which defines less
-if (less === undefined) {
- less = exports;
- tree = require('./tree');
- less.mode = 'node';
-}
-//
-// less.js - parser
-//
-// A relatively straight-forward predictive parser.
-// There is no tokenization/lexing stage, the input is parsed
-// in one sweep.
-//
-// To make the parser fast enough to run in the browser, several
-// optimization had to be made:
-//
-// - Matching and slicing on a huge input is often cause of slowdowns.
-// The solution is to chunkify the input into smaller strings.
-// The chunks are stored in the `chunks` var,
-// `j` holds the current chunk index, and `current` holds
-// the index of the current chunk in relation to `input`.
-// This gives us an almost 4x speed-up.
-//
-// - In many cases, we don't need to match individual tokens;
-// for example, if a value doesn't hold any variables, operations
-// or dynamic references, the parser can effectively 'skip' it,
-// treating it as a literal.
-// An example would be '1px solid #000' - which evaluates to itself,
-// we don't need to know what the individual components are.
-// The drawback, of course is that you don't get the benefits of
-// syntax-checking on the CSS. This gives us a 50% speed-up in the parser,
-// and a smaller speed-up in the code-gen.
-//
-//
-// Token matching is done with the `$` function, which either takes
-// a terminal string or regexp, or a non-terminal function to call.
-// It also takes care of moving all the indices forwards.
-//
-//
-less.Parser = function Parser(env) {
- var input, // LeSS input string
- i, // current index in `input`
- j, // current chunk
- temp, // temporarily holds a chunk's state, for backtracking
- memo, // temporarily holds `i`, when backtracking
- furthest, // furthest index the parser has gone to
- chunks, // chunkified input
- current, // index of current chunk, in `input`
- parser,
- rootFilename = env && env.filename;
-
- // Top parser on an import tree must be sure there is one "env"
- // which will then be passed around by reference.
- if (!(env instanceof tree.parseEnv)) {
- env = new tree.parseEnv(env);
- }
-
- var imports = this.imports = {
- paths: env.paths || [], // Search paths, when importing
- queue: [], // Files which haven't been imported yet
- files: env.files, // Holds the imported parse trees
- contents: env.contents, // Holds the imported file contents
- mime: env.mime, // MIME type of .less files
- error: null, // Error in parsing/evaluating an import
- push: function (path, currentFileInfo, importOptions, callback) {
- var parserImports = this;
- this.queue.push(path);
-
- var fileParsedFunc = function (e, root, fullPath) {
- parserImports.queue.splice(parserImports.queue.indexOf(path), 1); // Remove the path from the queue
-
- var importedPreviously = fullPath in parserImports.files || fullPath === rootFilename;
-
- parserImports.files[fullPath] = root; // Store the root
-
- if (e && !parserImports.error) { parserImports.error = e; }
-
- callback(e, root, importedPreviously, fullPath);
- };
-
- if (less.Parser.importer) {
- less.Parser.importer(path, currentFileInfo, fileParsedFunc, env);
- } else {
- less.Parser.fileLoader(path, currentFileInfo, function(e, contents, fullPath, newFileInfo) {
- if (e) {fileParsedFunc(e); return;}
-
- var newEnv = new tree.parseEnv(env);
-
- newEnv.currentFileInfo = newFileInfo;
- newEnv.processImports = false;
- newEnv.contents[fullPath] = contents;
-
- if (currentFileInfo.reference || importOptions.reference) {
- newFileInfo.reference = true;
- }
-
- if (importOptions.inline) {
- fileParsedFunc(null, contents, fullPath);
- } else {
- new(less.Parser)(newEnv).parse(contents, function (e, root) {
- fileParsedFunc(e, root, fullPath);
- });
- }
- }, env);
- }
- }
- };
-
- function save() { temp = chunks[j], memo = i, current = i; }
- function restore() { chunks[j] = temp, i = memo, current = i; }
-
- function sync() {
- if (i > current) {
- chunks[j] = chunks[j].slice(i - current);
- current = i;
- }
- }
- function isWhitespace(c) {
- // Could change to \s?
- var code = c.charCodeAt(0);
- return code === 32 || code === 10 || code === 9;
- }
- //
- // Parse from a token, regexp or string, and move forward if match
- //
- function $(tok) {
- var match, length;
-
- //
- // Non-terminal
- //
- if (tok instanceof Function) {
- return tok.call(parser.parsers);
- //
- // Terminal
- //
- // Either match a single character in the input,
- // or match a regexp in the current chunk (chunk[j]).
- //
- } else if (typeof(tok) === 'string') {
- match = input.charAt(i) === tok ? tok : null;
- length = 1;
- sync ();
- } else {
- sync ();
-
- if (match = tok.exec(chunks[j])) {
- length = match[0].length;
- } else {
- return null;
- }
- }
-
- // The match is confirmed, add the match length to `i`,
- // and consume any extra white-space characters (' ' || '\n')
- // which come after that. The reason for this is that LeSS's
- // grammar is mostly white-space insensitive.
- //
- if (match) {
- skipWhitespace(length);
-
- if(typeof(match) === 'string') {
- return match;
- } else {
- return match.length === 1 ? match[0] : match;
- }
- }
- }
-
- function skipWhitespace(length) {
- var oldi = i, oldj = j,
- endIndex = i + chunks[j].length,
- mem = i += length;
-
- while (i < endIndex) {
- if (! isWhitespace(input.charAt(i))) { break; }
- i++;
- }
- chunks[j] = chunks[j].slice(length + (i - mem));
- current = i;
-
- if (chunks[j].length === 0 && j < chunks.length - 1) { j++; }
-
- return oldi !== i || oldj !== j;
- }
-
- function expect(arg, msg) {
- var result = $(arg);
- if (! result) {
- error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'"
- : "unexpected token"));
- } else {
- return result;
- }
- }
-
- function error(msg, type) {
- var e = new Error(msg);
- e.index = i;
- e.type = type || 'Syntax';
- throw e;
- }
-
- // Same as $(), but don't change the state of the parser,
- // just return the match.
- function peek(tok) {
- if (typeof(tok) === 'string') {
- return input.charAt(i) === tok;
- } else {
- return tok.test(chunks[j]);
- }
- }
-
- function getInput(e, env) {
- if (e.filename && env.currentFileInfo.filename && (e.filename !== env.currentFileInfo.filename)) {
- return parser.imports.contents[e.filename];
- } else {
- return input;
- }
- }
-
- function getLocation(index, inputStream) {
- var n = index + 1,
- line = null,
- column = -1;
-
- while (--n >= 0 && inputStream.charAt(n) !== '\n') {
- column++;
- }
-
- if (typeof index === 'number') {
- line = (inputStream.slice(0, index).match(/\n/g) || "").length;
- }
-
- return {
- line: line,
- column: column
- };
- }
-
- function getDebugInfo(index, inputStream, env) {
- var filename = env.currentFileInfo.filename;
- if(less.mode !== 'browser' && less.mode !== 'rhino') {
- filename = require('path').resolve(filename);
- }
-
- return {
- lineNumber: getLocation(index, inputStream).line + 1,
- fileName: filename
- };
- }
-
- function LessError(e, env) {
- var input = getInput(e, env),
- loc = getLocation(e.index, input),
- line = loc.line,
- col = loc.column,
- callLine = e.call && getLocation(e.call, input).line,
- lines = input.split('\n');
-
- this.type = e.type || 'Syntax';
- this.message = e.message;
- this.filename = e.filename || env.currentFileInfo.filename;
- this.index = e.index;
- this.line = typeof(line) === 'number' ? line + 1 : null;
- this.callLine = callLine + 1;
- this.callExtract = lines[callLine];
- this.stack = e.stack;
- this.column = col;
- this.extract = [
- lines[line - 1],
- lines[line],
- lines[line + 1]
- ];
- }
-
- LessError.prototype = new Error();
- LessError.prototype.constructor = LessError;
-
- this.env = env = env || {};
-
- // The optimization level dictates the thoroughness of the parser,
- // the lower the number, the less nodes it will create in the tree.
- // This could matter for debugging, or if you want to access
- // the individual nodes in the tree.
- this.optimization = ('optimization' in this.env) ? this.env.optimization : 1;
-
- //
- // The Parser
- //
- return parser = {
-
- imports: imports,
- //
- // Parse an input string into an abstract syntax tree,
- // call `callback` when done.
- //
- parse: function (str, callback) {
- var root, line, lines, error = null;
-
- i = j = current = furthest = 0;
- input = str.replace(/\r\n/g, '\n');
-
- // Remove potential UTF Byte Order Mark
- input = input.replace(/^\uFEFF/, '');
-
- parser.imports.contents[env.currentFileInfo.filename] = input;
-
- // Split the input into chunks.
- chunks = (function (chunks) {
- var j = 0,
- skip = /(?:@\{[\w-]+\}|[^"'`\{\}\/\(\)\\])+/g,
- comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g,
- string = /"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'|`((?:[^`]|\\.)*)`/g,
- level = 0,
- match,
- chunk = chunks[0],
- inParam;
-
- for (var i = 0, c, cc; i < input.length;) {
- skip.lastIndex = i;
- if (match = skip.exec(input)) {
- if (match.index === i) {
- i += match[0].length;
- chunk.push(match[0]);
- }
- }
- c = input.charAt(i);
- comment.lastIndex = string.lastIndex = i;
-
- if (match = string.exec(input)) {
- if (match.index === i) {
- i += match[0].length;
- chunk.push(match[0]);
- continue;
- }
- }
-
- if (!inParam && c === '/') {
- cc = input.charAt(i + 1);
- if (cc === '/' || cc === '*') {
- if (match = comment.exec(input)) {
- if (match.index === i) {
- i += match[0].length;
- chunk.push(match[0]);
- continue;
- }
- }
- }
- }
-
- switch (c) {
- case '{':
- if (!inParam) {
- level++;
- chunk.push(c);
- break;
- }
- /* falls through */
- case '}':
- if (!inParam) {
- level--;
- chunk.push(c);
- chunks[++j] = chunk = [];
- break;
- }
- /* falls through */
- case '(':
- if (!inParam) {
- inParam = true;
- chunk.push(c);
- break;
- }
- /* falls through */
- case ')':
- if (inParam) {
- inParam = false;
- chunk.push(c);
- break;
- }
- /* falls through */
- default:
- chunk.push(c);
- }
-
- i++;
- }
- if (level !== 0) {
- error = new(LessError)({
- index: i-1,
- type: 'Parse',
- message: (level > 0) ? "missing closing `}`" : "missing opening `{`",
- filename: env.currentFileInfo.filename
- }, env);
- }
-
- return chunks.map(function (c) { return c.join(''); });
- })([[]]);
-
- if (error) {
- return callback(new(LessError)(error, env));
- }
-
- // Start with the primary rule.
- // The whole syntax tree is held under a Ruleset node,
- // with the `root` property set to true, so no `{}` are
- // output. The callback is called when the input is parsed.
- try {
- root = new(tree.Ruleset)([], $(this.parsers.primary));
- root.root = true;
- root.firstRoot = true;
- } catch (e) {
- return callback(new(LessError)(e, env));
- }
-
- root.toCSS = (function (evaluate) {
- return function (options, variables) {
- options = options || {};
- var evaldRoot,
- css,
- evalEnv = new tree.evalEnv(options);
-
- //
- // Allows setting variables with a hash, so:
- //
- // `{ color: new(tree.Color)('#f01') }` will become:
- //
- // new(tree.Rule)('@color',
- // new(tree.Value)([
- // new(tree.Expression)([
- // new(tree.Color)('#f01')
- // ])
- // ])
- // )
- //
- if (typeof(variables) === 'object' && !Array.isArray(variables)) {
- variables = Object.keys(variables).map(function (k) {
- var value = variables[k];
-
- if (! (value instanceof tree.Value)) {
- if (! (value instanceof tree.Expression)) {
- value = new(tree.Expression)([value]);
- }
- value = new(tree.Value)([value]);
- }
- return new(tree.Rule)('@' + k, value, false, null, 0);
- });
- evalEnv.frames = [new(tree.Ruleset)(null, variables)];
- }
-
- try {
- evaldRoot = evaluate.call(this, evalEnv);
-
- new(tree.joinSelectorVisitor)()
- .run(evaldRoot);
-
- new(tree.processExtendsVisitor)()
- .run(evaldRoot);
-
- new(tree.toCSSVisitor)({compress: Boolean(options.compress)})
- .run(evaldRoot);
-
- if (options.sourceMap) {
- evaldRoot = new tree.sourceMapOutput(
- {
- writeSourceMap: options.writeSourceMap,
- rootNode: evaldRoot,
- contentsMap: parser.imports.contents,
- sourceMapFilename: options.sourceMapFilename,
- sourceMapURL: options.sourceMapURL,
- outputFilename: options.sourceMapOutputFilename,
- sourceMapBasepath: options.sourceMapBasepath,
- sourceMapRootpath: options.sourceMapRootpath,
- outputSourceFiles: options.outputSourceFiles,
- sourceMapGenerator: options.sourceMapGenerator
- });
- }
-
- css = evaldRoot.toCSS({
- compress: Boolean(options.compress),
- dumpLineNumbers: env.dumpLineNumbers,
- strictUnits: Boolean(options.strictUnits)});
- } catch (e) {
- throw new(LessError)(e, env);
- }
-
- if (options.cleancss && less.mode === 'node') {
- var CleanCSS = require('clean-css');
- //TODO would be nice for no advanced to be an option
- return new CleanCSS({keepSpecialComments: '*', processImport: false, noRebase: true, noAdvanced: true}).minify(css);
- } else if (options.compress) {
- return css.replace(/(^(\s)+)|((\s)+$)/g, "");
- } else {
- return css;
- }
- };
- })(root.eval);
-
- // If `i` is smaller than the `input.length - 1`,
- // it means the parser wasn't able to parse the whole
- // string, so we've got a parsing error.
- //
- // We try to extract a \n delimited string,
- // showing the line where the parse error occured.
- // We split it up into two parts (the part which parsed,
- // and the part which didn't), so we can color them differently.
- if (i < input.length - 1) {
- i = furthest;
- var loc = getLocation(i, input);
- lines = input.split('\n');
- line = loc.line + 1;
-
- error = {
- type: "Parse",
- message: "Unrecognised input",
- index: i,
- filename: env.currentFileInfo.filename,
- line: line,
- column: loc.column,
- extract: [
- lines[line - 2],
- lines[line - 1],
- lines[line]
- ]
- };
- }
-
- var finish = function (e) {
- e = error || e || parser.imports.error;
-
- if (e) {
- if (!(e instanceof LessError)) {
- e = new(LessError)(e, env);
- }
-
- return callback(e);
- }
- else {
- return callback(null, root);
- }
- };
-
- if (env.processImports !== false) {
- new tree.importVisitor(this.imports, finish)
- .run(root);
- } else {
- return finish();
- }
- },
-
- //
- // Here in, the parsing rules/functions
- //
- // The basic structure of the syntax tree generated is as follows:
- //
- // Ruleset -> Rule -> Value -> Expression -> Entity
- //
- // Here's some LESS code:
- //
- // .class {
- // color: #fff;
- // border: 1px solid #000;
- // width: @w + 4px;
- // > .child {...}
- // }
- //
- // And here's what the parse tree might look like:
- //
- // Ruleset (Selector '.class', [
- // Rule ("color", Value ([Expression [Color #fff]]))
- // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]]))
- // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]]))
- // Ruleset (Selector [Element '>', '.child'], [...])
- // ])
- //
- // In general, most rules will try to parse a token with the `$()` function, and if the return
- // value is truly, will return a new node, of the relevant type. Sometimes, we need to check
- // first, before parsing, that's when we use `peek()`.
- //
- parsers: {
- //
- // The `primary` rule is the *entry* and *exit* point of the parser.
- // The rules here can appear at any level of the parse tree.
- //
- // The recursive nature of the grammar is an interplay between the `block`
- // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule,
- // as represented by this simplified grammar:
- //
- // primary → (ruleset | rule)+
- // ruleset → selector+ block
- // block → '{' primary '}'
- //
- // Only at one point is the primary rule not called from the
- // block rule: at the root level.
- //
- primary: function () {
- var node, root = [];
-
- while ((node = $(this.extendRule) || $(this.mixin.definition) || $(this.rule) || $(this.ruleset) ||
- $(this.mixin.call) || $(this.comment) || $(this.directive))
- || $(/^[\s\n]+/) || $(/^;+/)) {
- node && root.push(node);
- }
- return root;
- },
-
- // We create a Comment node for CSS comments `/* */`,
- // but keep the LeSS comments `//` silent, by just skipping
- // over them.
- comment: function () {
- var comment;
-
- if (input.charAt(i) !== '/') { return; }
-
- if (input.charAt(i + 1) === '/') {
- return new(tree.Comment)($(/^\/\/.*/), true, i, env.currentFileInfo);
- } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) {
- return new(tree.Comment)(comment, false, i, env.currentFileInfo);
- }
- },
-
- comments: function () {
- var comment, comments = [];
-
- while(comment = $(this.comment)) {
- comments.push(comment);
- }
-
- return comments;
- },
-
- //
- // Entities are tokens which can be found inside an Expression
- //
- entities: {
- //
- // A string, which supports escaping " and '
- //
- // "milky way" 'he\'s the one!'
- //
- quoted: function () {
- var str, j = i, e, index = i;
-
- if (input.charAt(j) === '~') { j++, e = true; } // Escaped strings
- if (input.charAt(j) !== '"' && input.charAt(j) !== "'") { return; }
-
- e && $('~');
-
- if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) {
- return new(tree.Quoted)(str[0], str[1] || str[2], e, index, env.currentFileInfo);
- }
- },
-
- //
- // A catch-all word, such as:
- //
- // black border-collapse
- //
- keyword: function () {
- var k;
-
- if (k = $(/^[_A-Za-z-][_A-Za-z0-9-]*/)) {
- var color = tree.Color.fromKeyword(k);
- if (color) {
- return color;
- }
- return new(tree.Keyword)(k);
- }
- },
-
- //
- // A function call
- //
- // rgb(255, 0, 255)
- //
- // We also try to catch IE's `alpha()`, but let the `alpha` parser
- // deal with the details.
- //
- // The arguments are parsed with the `entities.arguments` parser.
- //
- call: function () {
- var name, nameLC, args, alpha_ret, index = i;
-
- if (! (name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(chunks[j]))) { return; }
-
- name = name[1];
- nameLC = name.toLowerCase();
-
- if (nameLC === 'url') { return null; }
- else { i += name.length; }
-
- if (nameLC === 'alpha') {
- alpha_ret = $(this.alpha);
- if(typeof alpha_ret !== 'undefined') {
- return alpha_ret;
- }
- }
-
- $('('); // Parse the '(' and consume whitespace.
-
- args = $(this.entities.arguments);
-
- if (! $(')')) {
- return;
- }
-
- if (name) { return new(tree.Call)(name, args, index, env.currentFileInfo); }
- },
- arguments: function () {
- var args = [], arg;
-
- while (arg = $(this.entities.assignment) || $(this.expression)) {
- args.push(arg);
- if (! $(',')) {
- break;
- }
- }
- return args;
- },
- literal: function () {
- return $(this.entities.dimension) ||
- $(this.entities.color) ||
- $(this.entities.quoted) ||
- $(this.entities.unicodeDescriptor);
- },
-
- // Assignments are argument entities for calls.
- // They are present in ie filter properties as shown below.
- //
- // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* )
- //
-
- assignment: function () {
- var key, value;
- if ((key = $(/^\w+(?=\s?=)/i)) && $('=') && (value = $(this.entity))) {
- return new(tree.Assignment)(key, value);
- }
- },
-
- //
- // Parse url() tokens
- //
- // We use a specific rule for urls, because they don't really behave like
- // standard function calls. The difference is that the argument doesn't have
- // to be enclosed within a string, so it can't be parsed as an Expression.
- //
- url: function () {
- var value;
-
- if (input.charAt(i) !== 'u' || !$(/^url\(/)) {
- return;
- }
-
- value = $(this.entities.quoted) || $(this.entities.variable) ||
- $(/^(?:(?:\\[\(\)'"])|[^\(\)'"])+/) || "";
-
- expect(')');
-
- /*jshint eqnull:true */
- return new(tree.URL)((value.value != null || value instanceof tree.Variable)
- ? value : new(tree.Anonymous)(value), env.currentFileInfo);
- },
-
- //
- // A Variable entity, such as `@fink`, in
- //
- // width: @fink + 2px
- //
- // We use a different parser for variable definitions,
- // see `parsers.variable`.
- //
- variable: function () {
- var name, index = i;
-
- if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) {
- return new(tree.Variable)(name, index, env.currentFileInfo);
- }
- },
-
- // A variable entity useing the protective {} e.g. @{var}
- variableCurly: function () {
- var curly, index = i;
-
- if (input.charAt(i) === '@' && (curly = $(/^@\{([\w-]+)\}/))) {
- return new(tree.Variable)("@" + curly[1], index, env.currentFileInfo);
- }
- },
-
- //
- // A Hexadecimal color
- //
- // #4F3C2F
- //
- // `rgb` and `hsl` colors are parsed through the `entities.call` parser.
- //
- color: function () {
- var rgb;
-
- if (input.charAt(i) === '#' && (rgb = $(/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/))) {
- return new(tree.Color)(rgb[1]);
- }
- },
-
- //
- // A Dimension, that is, a number and a unit
- //
- // 0.5em 95%
- //
- dimension: function () {
- var value, c = input.charCodeAt(i);
- //Is the first char of the dimension 0-9, '.', '+' or '-'
- if ((c > 57 || c < 43) || c === 47 || c == 44) {
- return;
- }
-
- if (value = $(/^([+-]?\d*\.?\d+)(%|[a-z]+)?/)) {
- return new(tree.Dimension)(value[1], value[2]);
- }
- },
-
- //
- // A unicode descriptor, as is used in unicode-range
- //
- // U+0?? or U+00A1-00A9
- //
- unicodeDescriptor: function () {
- var ud;
-
- if (ud = $(/^U\+[0-9a-fA-F?]+(\-[0-9a-fA-F?]+)?/)) {
- return new(tree.UnicodeDescriptor)(ud[0]);
- }
- },
-
- //
- // JavaScript code to be evaluated
- //
- // `window.location.href`
- //
- javascript: function () {
- var str, j = i, e;
-
- if (input.charAt(j) === '~') { j++; e = true; } // Escaped strings
- if (input.charAt(j) !== '`') { return; }
- if (env.javascriptEnabled !== undefined && !env.javascriptEnabled) {
- error("You are using JavaScript, which has been disabled.");
- }
-
- if (e) { $('~'); }
-
- if (str = $(/^`([^`]*)`/)) {
- return new(tree.JavaScript)(str[1], i, e);
- }
- }
- },
-
- //
- // The variable part of a variable definition. Used in the `rule` parser
- //
- // @fink:
- //
- variable: function () {
- var name;
-
- if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1]; }
- },
-
- //
- // extend syntax - used to extend selectors
- //
- extend: function(isRule) {
- var elements, e, index = i, option, extendList = [];
-
- if (!$(isRule ? /^&:extend\(/ : /^:extend\(/)) { return; }
-
- do {
- option = null;
- elements = [];
- while (true) {
- option = $(/^(all)(?=\s*(\)|,))/);
- if (option) { break; }
- e = $(this.element);
- if (!e) { break; }
- elements.push(e);
- }
-
- option = option && option[1];
-
- extendList.push(new(tree.Extend)(new(tree.Selector)(elements), option, index));
-
- } while($(","));
-
- expect(/^\)/);
-
- if (isRule) {
- expect(/^;/);
- }
-
- return extendList;
- },
-
- //
- // extendRule - used in a rule to extend all the parent selectors
- //
- extendRule: function() {
- return this.extend(true);
- },
-
- //
- // Mixins
- //
- mixin: {
- //
- // A Mixin call, with an optional argument list
- //
- // #mixins > .square(#fff);
- // .rounded(4px, black);
- // .button;
- //
- // The `while` loop is there because mixins can be
- // namespaced, but we only support the child and descendant
- // selector for now.
- //
- call: function () {
- var elements = [], e, c, args, index = i, s = input.charAt(i), important = false;
-
- if (s !== '.' && s !== '#') { return; }
-
- save(); // stop us absorbing part of an invalid selector
-
- while (e = $(/^[#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/)) {
- elements.push(new(tree.Element)(c, e, i, env.currentFileInfo));
- c = $('>');
- }
- if ($('(')) {
- args = this.mixin.args.call(this, true).args;
- expect(')');
- }
-
- args = args || [];
-
- if ($(this.important)) {
- important = true;
- }
-
- if (elements.length > 0 && ($(';') || peek('}'))) {
- return new(tree.mixin.Call)(elements, args, index, env.currentFileInfo, important);
- }
-
- restore();
- },
- args: function (isCall) {
- var expressions = [], argsSemiColon = [], isSemiColonSeperated, argsComma = [], expressionContainsNamed, name, nameLoop, value, arg,
- returner = {args:null, variadic: false};
- while (true) {
- if (isCall) {
- arg = $(this.expression);
- } else {
- $(this.comments);
- if (input.charAt(i) === '.' && $(/^\.{3}/)) {
- returner.variadic = true;
- if ($(";") && !isSemiColonSeperated) {
- isSemiColonSeperated = true;
- }
- (isSemiColonSeperated ? argsSemiColon : argsComma)
- .push({ variadic: true });
- break;
- }
- arg = $(this.entities.variable) || $(this.entities.literal)
- || $(this.entities.keyword);
- }
-
- if (!arg) {
- break;
- }
-
- nameLoop = null;
- if (arg.throwAwayComments) {
- arg.throwAwayComments();
- }
- value = arg;
- var val = null;
-
- if (isCall) {
- // Variable
- if (arg.value.length == 1) {
- val = arg.value[0];
- }
- } else {
- val = arg;
- }
-
- if (val && val instanceof tree.Variable) {
- if ($(':')) {
- if (expressions.length > 0) {
- if (isSemiColonSeperated) {
- error("Cannot mix ; and , as delimiter types");
- }
- expressionContainsNamed = true;
- }
- value = expect(this.expression);
- nameLoop = (name = val.name);
- } else if (!isCall && $(/^\.{3}/)) {
- returner.variadic = true;
- if ($(";") && !isSemiColonSeperated) {
- isSemiColonSeperated = true;
- }
- (isSemiColonSeperated ? argsSemiColon : argsComma)
- .push({ name: arg.name, variadic: true });
- break;
- } else if (!isCall) {
- name = nameLoop = val.name;
- value = null;
- }
- }
-
- if (value) {
- expressions.push(value);
- }
-
- argsComma.push({ name:nameLoop, value:value });
-
- if ($(',')) {
- continue;
- }
-
- if ($(';') || isSemiColonSeperated) {
-
- if (expressionContainsNamed) {
- error("Cannot mix ; and , as delimiter types");
- }
-
- isSemiColonSeperated = true;
-
- if (expressions.length > 1) {
- value = new(tree.Value)(expressions);
- }
- argsSemiColon.push({ name:name, value:value });
-
- name = null;
- expressions = [];
- expressionContainsNamed = false;
- }
- }
-
- returner.args = isSemiColonSeperated ? argsSemiColon : argsComma;
- return returner;
- },
- //
- // A Mixin definition, with a list of parameters
- //
- // .rounded (@radius: 2px, @color) {
- // ...
- // }
- //
- // Until we have a finer grained state-machine, we have to
- // do a look-ahead, to make sure we don't have a mixin call.
- // See the `rule` function for more information.
- //
- // We start by matching `.rounded (`, and then proceed on to
- // the argument list, which has optional default values.
- // We store the parameters in `params`, with a `value` key,
- // if there is a value, such as in the case of `@radius`.
- //
- // Once we've got our params list, and a closing `)`, we parse
- // the `{...}` block.
- //
- definition: function () {
- var name, params = [], match, ruleset, cond, variadic = false;
- if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') ||
- peek(/^[^{]*\}/)) {
- return;
- }
-
- save();
-
- if (match = $(/^([#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+)\s*\(/)) {
- name = match[1];
-
- var argInfo = this.mixin.args.call(this, false);
- params = argInfo.args;
- variadic = argInfo.variadic;
-
- // .mixincall("@{a}");
- // looks a bit like a mixin definition.. so we have to be nice and restore
- if (!$(')')) {
- furthest = i;
- restore();
- }
-
- $(this.comments);
-
- if ($(/^when/)) { // Guard
- cond = expect(this.conditions, 'expected condition');
- }
-
- ruleset = $(this.block);
-
- if (ruleset) {
- return new(tree.mixin.Definition)(name, params, ruleset, cond, variadic);
- } else {
- restore();
- }
- }
- }
- },
-
- //
- // Entities are the smallest recognized token,
- // and can be found inside a rule's value.
- //
- entity: function () {
- return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) ||
- $(this.entities.call) || $(this.entities.keyword) ||$(this.entities.javascript) ||
- $(this.comment);
- },
-
- //
- // A Rule terminator. Note that we use `peek()` to check for '}',
- // because the `block` rule will be expecting it, but we still need to make sure
- // it's there, if ';' was ommitted.
- //
- end: function () {
- return $(';') || peek('}');
- },
-
- //
- // IE's alpha function
- //
- // alpha(opacity=88)
- //
- alpha: function () {
- var value;
-
- if (! $(/^\(opacity=/i)) { return; }
- if (value = $(/^\d+/) || $(this.entities.variable)) {
- expect(')');
- return new(tree.Alpha)(value);
- }
- },
-
- //
- // A Selector Element
- //
- // div
- // + h1
- // #socks
- // input[type="text"]
- //
- // Elements are the building blocks for Selectors,
- // they are made out of a `Combinator` (see combinator rule),
- // and an element name, such as a tag a class, or `*`.
- //
- element: function () {
- var e, c, v;
-
- c = $(this.combinator);
-
- e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|[^\x00-\x9f]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/) ||
- $('*') || $('&') || $(this.attribute) || $(/^\([^()@]+\)/) || $(/^[\.#](?=@)/) || $(this.entities.variableCurly);
-
- if (! e) {
- if ($('(')) {
- if ((v = ($(this.selector))) &&
- $(')')) {
- e = new(tree.Paren)(v);
- }
- }
- }
-
- if (e) { return new(tree.Element)(c, e, i, env.currentFileInfo); }
- },
-
- //
- // Combinators combine elements together, in a Selector.
- //
- // Because our parser isn't white-space sensitive, special care
- // has to be taken, when parsing the descendant combinator, ` `,
- // as it's an empty space. We have to check the previous character
- // in the input, to see if it's a ` ` character. More info on how
- // we deal with this in *combinator.js*.
- //
- combinator: function () {
- var c = input.charAt(i);
-
- if (c === '>' || c === '+' || c === '~' || c === '|') {
- i++;
- while (input.charAt(i).match(/\s/)) { i++; }
- return new(tree.Combinator)(c);
- } else if (input.charAt(i - 1).match(/\s/)) {
- return new(tree.Combinator)(" ");
- } else {
- return new(tree.Combinator)(null);
- }
- },
- //
- // A CSS selector (see selector below)
- // with less extensions e.g. the ability to extend and guard
- //
- lessSelector: function () {
- return this.selector(true);
- },
- //
- // A CSS Selector
- //
- // .class > div + h1
- // li a:hover
- //
- // Selectors are made out of one or more Elements, see above.
- //
- selector: function (isLess) {
- var e, elements = [], c, extend, extendList = [], when, condition;
-
- while ((isLess && (extend = $(this.extend))) || (isLess && (when = $(/^when/))) || (e = $(this.element))) {
- if (when) {
- condition = expect(this.conditions, 'expected condition');
- } else if (condition) {
- error("CSS guard can only be used at the end of selector");
- } else if (extend) {
- extendList.push.apply(extendList, extend);
- } else {
- if (extendList.length) {
- error("Extend can only be used at the end of selector");
- }
- c = input.charAt(i);
- elements.push(e);
- e = null;
- }
- if (c === '{' || c === '}' || c === ';' || c === ',' || c === ')') {
- break;
- }
- }
-
- if (elements.length > 0) { return new(tree.Selector)(elements, extendList, condition, i, env.currentFileInfo); }
- if (extendList.length) { error("Extend must be used to extend a selector, it cannot be used on its own"); }
- },
- attribute: function () {
- var key, val, op;
-
- if (! $('[')) { return; }
-
- if (!(key = $(this.entities.variableCurly))) {
- key = expect(/^(?:[_A-Za-z0-9-\*]*\|)?(?:[_A-Za-z0-9-]|\\.)+/);
- }
-
- if ((op = $(/^[|~*$^]?=/))) {
- val = $(this.entities.quoted) || $(/^[0-9]+%/) || $(/^[\w-]+/) || $(this.entities.variableCurly);
- }
-
- expect(']');
-
- return new(tree.Attribute)(key, op, val);
- },
-
- //
- // The `block` rule is used by `ruleset` and `mixin.definition`.
- // It's a wrapper around the `primary` rule, with added `{}`.
- //
- block: function () {
- var content;
- if ($('{') && (content = $(this.primary)) && $('}')) {
- return content;
- }
- },
-
- //
- // div, .class, body > p {...}
- //
- ruleset: function () {
- var selectors = [], s, rules, debugInfo;
-
- save();
-
- if (env.dumpLineNumbers) {
- debugInfo = getDebugInfo(i, input, env);
- }
-
- while (s = $(this.lessSelector)) {
- selectors.push(s);
- $(this.comments);
- if (! $(',')) { break; }
- if (s.condition) {
- error("Guards are only currently allowed on a single selector.");
- }
- $(this.comments);
- }
-
- if (selectors.length > 0 && (rules = $(this.block))) {
- var ruleset = new(tree.Ruleset)(selectors, rules, env.strictImports);
- if (env.dumpLineNumbers) {
- ruleset.debugInfo = debugInfo;
- }
- return ruleset;
- } else {
- // Backtrack
- furthest = i;
- restore();
- }
- },
- rule: function (tryAnonymous) {
- var name, value, c = input.charAt(i), important, merge = false;
- save();
-
- if (c === '.' || c === '#' || c === '&') { return; }
-
- if (name = $(this.variable) || $(this.ruleProperty)) {
- // prefer to try to parse first if its a variable or we are compressing
- // but always fallback on the other one
- value = !tryAnonymous && (env.compress || (name.charAt(0) === '@')) ?
- ($(this.value) || $(this.anonymousValue)) :
- ($(this.anonymousValue) || $(this.value));
-
-
- important = $(this.important);
- if (name[name.length-1] === "+") {
- merge = true;
- name = name.substr(0, name.length - 1);
- }
-
- if (value && $(this.end)) {
- return new (tree.Rule)(name, value, important, merge, memo, env.currentFileInfo);
- } else {
- furthest = i;
- restore();
- if (value && !tryAnonymous) {
- return this.rule(true);
- }
- }
- }
- },
- anonymousValue: function () {
- var match;
- if (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j])) {
- i += match[0].length - 1;
- return new(tree.Anonymous)(match[1]);
- }
- },
-
- //
- // An @import directive
- //
- // @import "lib";
- //
- // Depending on our environemnt, importing is done differently:
- // In the browser, it's an XHR request, in Node, it would be a
- // file-system operation. The function used for importing is
- // stored in `import`, which we pass to the Import constructor.
- //
- "import": function () {
- var path, features, index = i;
-
- save();
-
- var dir = $(/^@import?\s+/);
-
- var options = (dir ? $(this.importOptions) : null) || {};
-
- if (dir && (path = $(this.entities.quoted) || $(this.entities.url))) {
- features = $(this.mediaFeatures);
- if ($(';')) {
- features = features && new(tree.Value)(features);
- return new(tree.Import)(path, features, options, index, env.currentFileInfo);
- }
- }
-
- restore();
- },
-
- importOptions: function() {
- var o, options = {}, optionName, value;
-
- // list of options, surrounded by parens
- if (! $('(')) { return null; }
- do {
- if (o = $(this.importOption)) {
- optionName = o;
- value = true;
- switch(optionName) {
- case "css":
- optionName = "less";
- value = false;
- break;
- case "once":
- optionName = "multiple";
- value = false;
- break;
- }
- options[optionName] = value;
- if (! $(',')) { break; }
- }
- } while (o);
- expect(')');
- return options;
- },
-
- importOption: function() {
- var opt = $(/^(less|css|multiple|once|inline|reference)/);
- if (opt) {
- return opt[1];
- }
- },
-
- mediaFeature: function () {
- var e, p, nodes = [];
-
- do {
- if (e = ($(this.entities.keyword) || $(this.entities.variable))) {
- nodes.push(e);
- } else if ($('(')) {
- p = $(this.property);
- e = $(this.value);
- if ($(')')) {
- if (p && e) {
- nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, null, i, env.currentFileInfo, true)));
- } else if (e) {
- nodes.push(new(tree.Paren)(e));
- } else {
- return null;
- }
- } else { return null; }
- }
- } while (e);
-
- if (nodes.length > 0) {
- return new(tree.Expression)(nodes);
- }
- },
-
- mediaFeatures: function () {
- var e, features = [];
-
- do {
- if (e = $(this.mediaFeature)) {
- features.push(e);
- if (! $(',')) { break; }
- } else if (e = $(this.entities.variable)) {
- features.push(e);
- if (! $(',')) { break; }
- }
- } while (e);
-
- return features.length > 0 ? features : null;
- },
-
- media: function () {
- var features, rules, media, debugInfo;
-
- if (env.dumpLineNumbers) {
- debugInfo = getDebugInfo(i, input, env);
- }
-
- if ($(/^@media/)) {
- features = $(this.mediaFeatures);
-
- if (rules = $(this.block)) {
- media = new(tree.Media)(rules, features, i, env.currentFileInfo);
- if (env.dumpLineNumbers) {
- media.debugInfo = debugInfo;
- }
- return media;
- }
- }
- },
-
- //
- // A CSS Directive
- //
- // @charset "utf-8";
- //
- directive: function () {
- var name, value, rules, nonVendorSpecificName,
- hasBlock, hasIdentifier, hasExpression, identifier;
-
- if (input.charAt(i) !== '@') { return; }
-
- if (value = $(this['import']) || $(this.media)) {
- return value;
- }
-
- save();
-
- name = $(/^@[a-z-]+/);
-
- if (!name) { return; }
-
- nonVendorSpecificName = name;
- if (name.charAt(1) == '-' && name.indexOf('-', 2) > 0) {
- nonVendorSpecificName = "@" + name.slice(name.indexOf('-', 2) + 1);
- }
-
- switch(nonVendorSpecificName) {
- case "@font-face":
- hasBlock = true;
- break;
- case "@viewport":
- case "@top-left":
- case "@top-left-corner":
- case "@top-center":
- case "@top-right":
- case "@top-right-corner":
- case "@bottom-left":
- case "@bottom-left-corner":
- case "@bottom-center":
- case "@bottom-right":
- case "@bottom-right-corner":
- case "@left-top":
- case "@left-middle":
- case "@left-bottom":
- case "@right-top":
- case "@right-middle":
- case "@right-bottom":
- hasBlock = true;
- break;
- case "@host":
- case "@page":
- case "@document":
- case "@supports":
- case "@keyframes":
- hasBlock = true;
- hasIdentifier = true;
- break;
- case "@namespace":
- hasExpression = true;
- break;
- }
-
- if (hasIdentifier) {
- identifier = ($(/^[^{]+/) || '').trim();
- if (identifier) {
- name += " " + identifier;
- }
- }
-
- if (hasBlock)
- {
- if (rules = $(this.block)) {
- return new(tree.Directive)(name, rules, i, env.currentFileInfo);
- }
- } else {
- if ((value = hasExpression ? $(this.expression) : $(this.entity)) && $(';')) {
- var directive = new(tree.Directive)(name, value, i, env.currentFileInfo);
- if (env.dumpLineNumbers) {
- directive.debugInfo = getDebugInfo(i, input, env);
- }
- return directive;
- }
- }
-
- restore();
- },
-
- //
- // A Value is a comma-delimited list of Expressions
- //
- // font-family: Baskerville, Georgia, serif;
- //
- // In a Rule, a Value represents everything after the `:`,
- // and before the `;`.
- //
- value: function () {
- var e, expressions = [];
-
- while (e = $(this.expression)) {
- expressions.push(e);
- if (! $(',')) { break; }
- }
-
- if (expressions.length > 0) {
- return new(tree.Value)(expressions);
- }
- },
- important: function () {
- if (input.charAt(i) === '!') {
- return $(/^! *important/);
- }
- },
- sub: function () {
- var a, e;
-
- if ($('(')) {
- if (a = $(this.addition)) {
- e = new(tree.Expression)([a]);
- expect(')');
- e.parens = true;
- return e;
- }
- }
- },
- multiplication: function () {
- var m, a, op, operation, isSpaced;
- if (m = $(this.operand)) {
- isSpaced = isWhitespace(input.charAt(i - 1));
- while (!peek(/^\/[*\/]/) && (op = ($('/') || $('*')))) {
- if (a = $(this.operand)) {
- m.parensInOp = true;
- a.parensInOp = true;
- operation = new(tree.Operation)(op, [operation || m, a], isSpaced);
- isSpaced = isWhitespace(input.charAt(i - 1));
- } else {
- break;
- }
- }
- return operation || m;
- }
- },
- addition: function () {
- var m, a, op, operation, isSpaced;
- if (m = $(this.multiplication)) {
- isSpaced = isWhitespace(input.charAt(i - 1));
- while ((op = $(/^[-+]\s+/) || (!isSpaced && ($('+') || $('-')))) &&
- (a = $(this.multiplication))) {
- m.parensInOp = true;
- a.parensInOp = true;
- operation = new(tree.Operation)(op, [operation || m, a], isSpaced);
- isSpaced = isWhitespace(input.charAt(i - 1));
- }
- return operation || m;
- }
- },
- conditions: function () {
- var a, b, index = i, condition;
-
- if (a = $(this.condition)) {
- while (peek(/^,\s*(not\s*)?\(/) && $(',') && (b = $(this.condition))) {
- condition = new(tree.Condition)('or', condition || a, b, index);
- }
- return condition || a;
- }
- },
- condition: function () {
- var a, b, c, op, index = i, negate = false;
-
- if ($(/^not/)) { negate = true; }
- expect('(');
- if (a = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) {
- if (op = $(/^(?:>=|<=|=<|[<=>])/)) {
- if (b = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) {
- c = new(tree.Condition)(op, a, b, index, negate);
- } else {
- error('expected expression');
- }
- } else {
- c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate);
- }
- expect(')');
- return $(/^and/) ? new(tree.Condition)('and', c, $(this.condition)) : c;
- }
- },
-
- //
- // An operand is anything that can be part of an operation,
- // such as a Color, or a Variable
- //
- operand: function () {
- var negate, p = input.charAt(i + 1);
-
- if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-'); }
- var o = $(this.sub) || $(this.entities.dimension) ||
- $(this.entities.color) || $(this.entities.variable) ||
- $(this.entities.call);
-
- if (negate) {
- o.parensInOp = true;
- o = new(tree.Negative)(o);
- }
-
- return o;
- },
-
- //
- // Expressions either represent mathematical operations,
- // or white-space delimited Entities.
- //
- // 1px solid black
- // @var * 2
- //
- expression: function () {
- var e, delim, entities = [];
-
- while (e = $(this.addition) || $(this.entity)) {
- entities.push(e);
- // operations do not allow keyword "/" dimension (e.g. small/20px) so we support that here
- if (!peek(/^\/[\/*]/) && (delim = $('/'))) {
- entities.push(new(tree.Anonymous)(delim));
- }
- }
- if (entities.length > 0) {
- return new(tree.Expression)(entities);
- }
- },
- property: function () {
- var name;
-
- if (name = $(/^(\*?-?[_a-zA-Z0-9-]+)\s*:/)) {
- return name[1];
- }
- },
- ruleProperty: function () {
- var name;
-
- if (name = $(/^(\*?-?[_a-zA-Z0-9-]+)\s*(\+?)\s*:/)) {
- return name[1] + (name[2] || "");
- }
- }
- }
- };
-};
-
-
-(function (tree) {
-
-tree.functions = {
- rgb: function (r, g, b) {
- return this.rgba(r, g, b, 1.0);
- },
- rgba: function (r, g, b, a) {
- var rgb = [r, g, b].map(function (c) { return scaled(c, 256); });
- a = number(a);
- return new(tree.Color)(rgb, a);
- },
- hsl: function (h, s, l) {
- return this.hsla(h, s, l, 1.0);
- },
- hsla: function (h, s, l, a) {
- function hue(h) {
- h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h);
- if (h * 6 < 1) { return m1 + (m2 - m1) * h * 6; }
- else if (h * 2 < 1) { return m2; }
- else if (h * 3 < 2) { return m1 + (m2 - m1) * (2/3 - h) * 6; }
- else { return m1; }
- }
-
- h = (number(h) % 360) / 360;
- s = clamp(number(s)); l = clamp(number(l)); a = clamp(number(a));
-
- var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s;
- var m1 = l * 2 - m2;
-
- return this.rgba(hue(h + 1/3) * 255,
- hue(h) * 255,
- hue(h - 1/3) * 255,
- a);
- },
-
- hsv: function(h, s, v) {
- return this.hsva(h, s, v, 1.0);
- },
-
- hsva: function(h, s, v, a) {
- h = ((number(h) % 360) / 360) * 360;
- s = number(s); v = number(v); a = number(a);
-
- var i, f;
- i = Math.floor((h / 60) % 6);
- f = (h / 60) - i;
-
- var vs = [v,
- v * (1 - s),
- v * (1 - f * s),
- v * (1 - (1 - f) * s)];
- var perm = [[0, 3, 1],
- [2, 0, 1],
- [1, 0, 3],
- [1, 2, 0],
- [3, 1, 0],
- [0, 1, 2]];
-
- return this.rgba(vs[perm[i][0]] * 255,
- vs[perm[i][1]] * 255,
- vs[perm[i][2]] * 255,
- a);
- },
-
- hue: function (color) {
- return new(tree.Dimension)(Math.round(color.toHSL().h));
- },
- saturation: function (color) {
- return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%');
- },
- lightness: function (color) {
- return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%');
- },
- hsvhue: function(color) {
- return new(tree.Dimension)(Math.round(color.toHSV().h));
- },
- hsvsaturation: function (color) {
- return new(tree.Dimension)(Math.round(color.toHSV().s * 100), '%');
- },
- hsvvalue: function (color) {
- return new(tree.Dimension)(Math.round(color.toHSV().v * 100), '%');
- },
- red: function (color) {
- return new(tree.Dimension)(color.rgb[0]);
- },
- green: function (color) {
- return new(tree.Dimension)(color.rgb[1]);
- },
- blue: function (color) {
- return new(tree.Dimension)(color.rgb[2]);
- },
- alpha: function (color) {
- return new(tree.Dimension)(color.toHSL().a);
- },
- luma: function (color) {
- return new(tree.Dimension)(Math.round(color.luma() * color.alpha * 100), '%');
- },
- saturate: function (color, amount) {
- // filter: saturate(3.2);
- // should be kept as is, so check for color
- if (!color.rgb) {
- return null;
- }
- var hsl = color.toHSL();
-
- hsl.s += amount.value / 100;
- hsl.s = clamp(hsl.s);
- return hsla(hsl);
- },
- desaturate: function (color, amount) {
- var hsl = color.toHSL();
-
- hsl.s -= amount.value / 100;
- hsl.s = clamp(hsl.s);
- return hsla(hsl);
- },
- lighten: function (color, amount) {
- var hsl = color.toHSL();
-
- hsl.l += amount.value / 100;
- hsl.l = clamp(hsl.l);
- return hsla(hsl);
- },
- darken: function (color, amount) {
- var hsl = color.toHSL();
-
- hsl.l -= amount.value / 100;
- hsl.l = clamp(hsl.l);
- return hsla(hsl);
- },
- fadein: function (color, amount) {
- var hsl = color.toHSL();
-
- hsl.a += amount.value / 100;
- hsl.a = clamp(hsl.a);
- return hsla(hsl);
- },
- fadeout: function (color, amount) {
- var hsl = color.toHSL();
-
- hsl.a -= amount.value / 100;
- hsl.a = clamp(hsl.a);
- return hsla(hsl);
- },
- fade: function (color, amount) {
- var hsl = color.toHSL();
-
- hsl.a = amount.value / 100;
- hsl.a = clamp(hsl.a);
- return hsla(hsl);
- },
- spin: function (color, amount) {
- var hsl = color.toHSL();
- var hue = (hsl.h + amount.value) % 360;
-
- hsl.h = hue < 0 ? 360 + hue : hue;
-
- return hsla(hsl);
- },
- //
- // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein
- // http://sass-lang.com
- //
- mix: function (color1, color2, weight) {
- if (!weight) {
- weight = new(tree.Dimension)(50);
- }
- var p = weight.value / 100.0;
- var w = p * 2 - 1;
- var a = color1.toHSL().a - color2.toHSL().a;
-
- var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0;
- var w2 = 1 - w1;
-
- var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2,
- color1.rgb[1] * w1 + color2.rgb[1] * w2,
- color1.rgb[2] * w1 + color2.rgb[2] * w2];
-
- var alpha = color1.alpha * p + color2.alpha * (1 - p);
-
- return new(tree.Color)(rgb, alpha);
- },
- greyscale: function (color) {
- return this.desaturate(color, new(tree.Dimension)(100));
- },
- contrast: function (color, dark, light, threshold) {
- // filter: contrast(3.2);
- // should be kept as is, so check for color
- if (!color.rgb) {
- return null;
- }
- if (typeof light === 'undefined') {
- light = this.rgba(255, 255, 255, 1.0);
- }
- if (typeof dark === 'undefined') {
- dark = this.rgba(0, 0, 0, 1.0);
- }
- //Figure out which is actually light and dark!
- if (dark.luma() > light.luma()) {
- var t = light;
- light = dark;
- dark = t;
- }
- if (typeof threshold === 'undefined') {
- threshold = 0.43;
- } else {
- threshold = number(threshold);
- }
- if ((color.luma() * color.alpha) < threshold) {
- return light;
- } else {
- return dark;
- }
- },
- e: function (str) {
- return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str);
- },
- escape: function (str) {
- return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29"));
- },
- '%': function (quoted /* arg, arg, ...*/) {
- var args = Array.prototype.slice.call(arguments, 1),
- str = quoted.value;
-
- for (var i = 0; i < args.length; i++) {
- /*jshint loopfunc:true */
- str = str.replace(/%[sda]/i, function(token) {
- var value = token.match(/s/i) ? args[i].value : args[i].toCSS();
- return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value;
- });
- }
- str = str.replace(/%%/g, '%');
- return new(tree.Quoted)('"' + str + '"', str);
- },
- unit: function (val, unit) {
- if(!(val instanceof tree.Dimension)) {
- throw { type: "Argument", message: "the first argument to unit must be a number" + (val instanceof tree.Operation ? ". Have you forgotten parenthesis?" : "") };
- }
- return new(tree.Dimension)(val.value, unit ? unit.toCSS() : "");
- },
- convert: function (val, unit) {
- return val.convertTo(unit.value);
- },
- round: function (n, f) {
- var fraction = typeof(f) === "undefined" ? 0 : f.value;
- return this._math(function(num) { return num.toFixed(fraction); }, null, n);
- },
- pi: function () {
- return new(tree.Dimension)(Math.PI);
- },
- mod: function(a, b) {
- return new(tree.Dimension)(a.value % b.value, a.unit);
- },
- pow: function(x, y) {
- if (typeof x === "number" && typeof y === "number") {
- x = new(tree.Dimension)(x);
- y = new(tree.Dimension)(y);
- } else if (!(x instanceof tree.Dimension) || !(y instanceof tree.Dimension)) {
- throw { type: "Argument", message: "arguments must be numbers" };
- }
-
- return new(tree.Dimension)(Math.pow(x.value, y.value), x.unit);
- },
- _math: function (fn, unit, n) {
- if (n instanceof tree.Dimension) {
- /*jshint eqnull:true */
- return new(tree.Dimension)(fn(parseFloat(n.value)), unit == null ? n.unit : unit);
- } else if (typeof(n) === 'number') {
- return fn(n);
- } else {
- throw { type: "Argument", message: "argument must be a number" };
- }
- },
- _minmax: function (isMin, args) {
- args = Array.prototype.slice.call(args);
- switch(args.length) {
- case 0: throw { type: "Argument", message: "one or more arguments required" };
- case 1: return args[0];
- }
- var i, j, current, currentUnified, referenceUnified, unit,
- order = [], // elems only contains original argument values.
- values = {}; // key is the unit.toString() for unified tree.Dimension values,
- // value is the index into the order array.
- for (i = 0; i < args.length; i++) {
- current = args[i];
- if (!(current instanceof tree.Dimension)) {
- order.push(current);
- continue;
- }
- currentUnified = current.unify();
- unit = currentUnified.unit.toString();
- j = values[unit];
- if (j === undefined) {
- values[unit] = order.length;
- order.push(current);
- continue;
- }
- referenceUnified = order[j].unify();
- if ( isMin && currentUnified.value < referenceUnified.value ||
- !isMin && currentUnified.value > referenceUnified.value) {
- order[j] = current;
- }
- }
- if (order.length == 1) {
- return order[0];
- }
- args = order.map(function (a) { return a.toCSS(this.env); })
- .join(this.env.compress ? "," : ", ");
- return new(tree.Anonymous)((isMin ? "min" : "max") + "(" + args + ")");
- },
- min: function () {
- return this._minmax(true, arguments);
- },
- max: function () {
- return this._minmax(false, arguments);
- },
- argb: function (color) {
- return new(tree.Anonymous)(color.toARGB());
-
- },
- percentage: function (n) {
- return new(tree.Dimension)(n.value * 100, '%');
- },
- color: function (n) {
- if (n instanceof tree.Quoted) {
- var colorCandidate = n.value,
- returnColor;
- returnColor = tree.Color.fromKeyword(colorCandidate);
- if (returnColor) {
- return returnColor;
- }
- if (/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/.test(colorCandidate)) {
- return new(tree.Color)(colorCandidate.slice(1));
- }
- throw { type: "Argument", message: "argument must be a color keyword or 3/6 digit hex e.g. #FFF" };
- } else {
- throw { type: "Argument", message: "argument must be a string" };
- }
- },
- iscolor: function (n) {
- return this._isa(n, tree.Color);
- },
- isnumber: function (n) {
- return this._isa(n, tree.Dimension);
- },
- isstring: function (n) {
- return this._isa(n, tree.Quoted);
- },
- iskeyword: function (n) {
- return this._isa(n, tree.Keyword);
- },
- isurl: function (n) {
- return this._isa(n, tree.URL);
- },
- ispixel: function (n) {
- return this.isunit(n, 'px');
- },
- ispercentage: function (n) {
- return this.isunit(n, '%');
- },
- isem: function (n) {
- return this.isunit(n, 'em');
- },
- isunit: function (n, unit) {
- return (n instanceof tree.Dimension) && n.unit.is(unit.value || unit) ? tree.True : tree.False;
- },
- _isa: function (n, Type) {
- return (n instanceof Type) ? tree.True : tree.False;
- },
-
- /* Blending modes */
-
- multiply: function(color1, color2) {
- var r = color1.rgb[0] * color2.rgb[0] / 255;
- var g = color1.rgb[1] * color2.rgb[1] / 255;
- var b = color1.rgb[2] * color2.rgb[2] / 255;
- return this.rgb(r, g, b);
- },
- screen: function(color1, color2) {
- var r = 255 - (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255;
- var g = 255 - (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255;
- var b = 255 - (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255;
- return this.rgb(r, g, b);
- },
- overlay: function(color1, color2) {
- var r = color1.rgb[0] < 128 ? 2 * color1.rgb[0] * color2.rgb[0] / 255 : 255 - 2 * (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255;
- var g = color1.rgb[1] < 128 ? 2 * color1.rgb[1] * color2.rgb[1] / 255 : 255 - 2 * (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255;
- var b = color1.rgb[2] < 128 ? 2 * color1.rgb[2] * color2.rgb[2] / 255 : 255 - 2 * (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255;
- return this.rgb(r, g, b);
- },
- softlight: function(color1, color2) {
- var t = color2.rgb[0] * color1.rgb[0] / 255;
- var r = t + color1.rgb[0] * (255 - (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255 - t) / 255;
- t = color2.rgb[1] * color1.rgb[1] / 255;
- var g = t + color1.rgb[1] * (255 - (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255 - t) / 255;
- t = color2.rgb[2] * color1.rgb[2] / 255;
- var b = t + color1.rgb[2] * (255 - (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255 - t) / 255;
- return this.rgb(r, g, b);
- },
- hardlight: function(color1, color2) {
- var r = color2.rgb[0] < 128 ? 2 * color2.rgb[0] * color1.rgb[0] / 255 : 255 - 2 * (255 - color2.rgb[0]) * (255 - color1.rgb[0]) / 255;
- var g = color2.rgb[1] < 128 ? 2 * color2.rgb[1] * color1.rgb[1] / 255 : 255 - 2 * (255 - color2.rgb[1]) * (255 - color1.rgb[1]) / 255;
- var b = color2.rgb[2] < 128 ? 2 * color2.rgb[2] * color1.rgb[2] / 255 : 255 - 2 * (255 - color2.rgb[2]) * (255 - color1.rgb[2]) / 255;
- return this.rgb(r, g, b);
- },
- difference: function(color1, color2) {
- var r = Math.abs(color1.rgb[0] - color2.rgb[0]);
- var g = Math.abs(color1.rgb[1] - color2.rgb[1]);
- var b = Math.abs(color1.rgb[2] - color2.rgb[2]);
- return this.rgb(r, g, b);
- },
- exclusion: function(color1, color2) {
- var r = color1.rgb[0] + color2.rgb[0] * (255 - color1.rgb[0] - color1.rgb[0]) / 255;
- var g = color1.rgb[1] + color2.rgb[1] * (255 - color1.rgb[1] - color1.rgb[1]) / 255;
- var b = color1.rgb[2] + color2.rgb[2] * (255 - color1.rgb[2] - color1.rgb[2]) / 255;
- return this.rgb(r, g, b);
- },
- average: function(color1, color2) {
- var r = (color1.rgb[0] + color2.rgb[0]) / 2;
- var g = (color1.rgb[1] + color2.rgb[1]) / 2;
- var b = (color1.rgb[2] + color2.rgb[2]) / 2;
- return this.rgb(r, g, b);
- },
- negation: function(color1, color2) {
- var r = 255 - Math.abs(255 - color2.rgb[0] - color1.rgb[0]);
- var g = 255 - Math.abs(255 - color2.rgb[1] - color1.rgb[1]);
- var b = 255 - Math.abs(255 - color2.rgb[2] - color1.rgb[2]);
- return this.rgb(r, g, b);
- },
- tint: function(color, amount) {
- return this.mix(this.rgb(255,255,255), color, amount);
- },
- shade: function(color, amount) {
- return this.mix(this.rgb(0, 0, 0), color, amount);
- },
- extract: function(values, index) {
- index = index.value - 1; // (1-based index)
- // handle non-array values as an array of length 1
- // return 'undefined' if index is invalid
- return Array.isArray(values.value)
- ? values.value[index] : Array(values)[index];
- },
- length: function(values) {
- var n = Array.isArray(values.value) ? values.value.length : 1;
- return new tree.Dimension(n);
- },
-
- "data-uri": function(mimetypeNode, filePathNode) {
-
- if (typeof window !== 'undefined') {
- return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env);
- }
-
- var mimetype = mimetypeNode.value;
- var filePath = (filePathNode && filePathNode.value);
-
- var fs = require("fs"),
- path = require("path"),
- useBase64 = false;
-
- if (arguments.length < 2) {
- filePath = mimetype;
- }
-
- if (this.env.isPathRelative(filePath)) {
- if (this.currentFileInfo.relativeUrls) {
- filePath = path.join(this.currentFileInfo.currentDirectory, filePath);
- } else {
- filePath = path.join(this.currentFileInfo.entryPath, filePath);
- }
- }
-
- // detect the mimetype if not given
- if (arguments.length < 2) {
- var mime;
- try {
- mime = require('mime');
- } catch (ex) {
- mime = tree._mime;
- }
-
- mimetype = mime.lookup(filePath);
-
- // use base 64 unless it's an ASCII or UTF-8 format
- var charset = mime.charsets.lookup(mimetype);
- useBase64 = ['US-ASCII', 'UTF-8'].indexOf(charset) < 0;
- if (useBase64) { mimetype += ';base64'; }
- }
- else {
- useBase64 = /;base64$/.test(mimetype);
- }
-
- var buf = fs.readFileSync(filePath);
-
- // IE8 cannot handle a data-uri larger than 32KB. If this is exceeded
- // and the --ieCompat flag is enabled, return a normal url() instead.
- var DATA_URI_MAX_KB = 32,
- fileSizeInKB = parseInt((buf.length / 1024), 10);
- if (fileSizeInKB >= DATA_URI_MAX_KB) {
-
- if (this.env.ieCompat !== false) {
- if (!this.env.silent) {
- console.warn("Skipped data-uri embedding of %s because its size (%dKB) exceeds IE8-safe %dKB!", filePath, fileSizeInKB, DATA_URI_MAX_KB);
- }
-
- return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env);
- }
- }
-
- buf = useBase64 ? buf.toString('base64')
- : encodeURIComponent(buf);
-
- var uri = "'data:" + mimetype + ',' + buf + "'";
- return new(tree.URL)(new(tree.Anonymous)(uri));
- },
-
- "svg-gradient": function(direction) {
-
- function throwArgumentDescriptor() {
- throw { type: "Argument", message: "svg-gradient expects direction, start_color [start_position], [color position,]..., end_color [end_position]" };
- }
-
- if (arguments.length < 3) {
- throwArgumentDescriptor();
- }
- var stops = Array.prototype.slice.call(arguments, 1),
- gradientDirectionSvg,
- gradientType = "linear",
- rectangleDimension = 'x="0" y="0" width="1" height="1"',
- useBase64 = true,
- renderEnv = {compress: false},
- returner,
- directionValue = direction.toCSS(renderEnv),
- i, color, position, positionValue, alpha;
-
- switch (directionValue) {
- case "to bottom":
- gradientDirectionSvg = 'x1="0%" y1="0%" x2="0%" y2="100%"';
- break;
- case "to right":
- gradientDirectionSvg = 'x1="0%" y1="0%" x2="100%" y2="0%"';
- break;
- case "to bottom right":
- gradientDirectionSvg = 'x1="0%" y1="0%" x2="100%" y2="100%"';
- break;
- case "to top right":
- gradientDirectionSvg = 'x1="0%" y1="100%" x2="100%" y2="0%"';
- break;
- case "ellipse":
- case "ellipse at center":
- gradientType = "radial";
- gradientDirectionSvg = 'cx="50%" cy="50%" r="75%"';
- rectangleDimension = 'x="-50" y="-50" width="101" height="101"';
- break;
- default:
- throw { type: "Argument", message: "svg-gradient direction must be 'to bottom', 'to right', 'to bottom right', 'to top right' or 'ellipse at center'" };
- }
- returner = '<?xml version="1.0" ?>' +
- '<svg xmlns="http://www.w3.org/2000/svg" version="1.1" width="100%" height="100%" viewBox="0 0 1 1" preserveAspectRatio="none">' +
- '<' + gradientType + 'Gradient id="gradient" gradientUnits="userSpaceOnUse" ' + gradientDirectionSvg + '>';
-
- for (i = 0; i < stops.length; i+= 1) {
- if (stops[i].value) {
- color = stops[i].value[0];
- position = stops[i].value[1];
- } else {
- color = stops[i];
- position = undefined;
- }
-
- if (!(color instanceof tree.Color) || (!((i === 0 || i+1 === stops.length) && position === undefined) && !(position instanceof tree.Dimension))) {
- throwArgumentDescriptor();
- }
- positionValue = position ? position.toCSS(renderEnv) : i === 0 ? "0%" : "100%";
- alpha = color.alpha;
- returner += '<stop offset="' + positionValue + '" stop-color="' + color.toRGB() + '"' + (alpha < 1 ? ' stop-opacity="' + alpha + '"' : '') + '/>';
- }
- returner += '</' + gradientType + 'Gradient>' +
- '<rect ' + rectangleDimension + ' fill="url(#gradient)" /></svg>';
-
- if (useBase64) {
- // only works in node, needs interface to what is supported in environment
- try {
- returner = new Buffer(returner).toString('base64');
- } catch(e) {
- useBase64 = false;
- }
- }
-
- returner = "'data:image/svg+xml" + (useBase64 ? ";base64" : "") + "," + returner + "'";
- return new(tree.URL)(new(tree.Anonymous)(returner));
- }
-};
-
-// these static methods are used as a fallback when the optional 'mime' dependency is missing
-tree._mime = {
- // this map is intentionally incomplete
- // if you want more, install 'mime' dep
- _types: {
- '.htm' : 'text/html',
- '.html': 'text/html',
- '.gif' : 'image/gif',
- '.jpg' : 'image/jpeg',
- '.jpeg': 'image/jpeg',
- '.png' : 'image/png'
- },
- lookup: function (filepath) {
- var ext = require('path').extname(filepath),
- type = tree._mime._types[ext];
- if (type === undefined) {
- throw new Error('Optional dependency "mime" is required for ' + ext);
- }
- return type;
- },
- charsets: {
- lookup: function (type) {
- // assumes all text types are UTF-8
- return type && (/^text\//).test(type) ? 'UTF-8' : '';
- }
- }
-};
-
-var mathFunctions = [{name:"ceil"}, {name:"floor"}, {name: "sqrt"}, {name:"abs"},
- {name:"tan", unit: ""}, {name:"sin", unit: ""}, {name:"cos", unit: ""},
- {name:"atan", unit: "rad"}, {name:"asin", unit: "rad"}, {name:"acos", unit: "rad"}],
- createMathFunction = function(name, unit) {
- return function(n) {
- /*jshint eqnull:true */
- if (unit != null) {
- n = n.unify();
- }
- return this._math(Math[name], unit, n);
- };
- };
-
-for(var i = 0; i < mathFunctions.length; i++) {
- tree.functions[mathFunctions[i].name] = createMathFunction(mathFunctions[i].name, mathFunctions[i].unit);
-}
-
-function hsla(color) {
- return tree.functions.hsla(color.h, color.s, color.l, color.a);
-}
-
-function scaled(n, size) {
- if (n instanceof tree.Dimension && n.unit.is('%')) {
- return parseFloat(n.value * size / 100);
- } else {
- return number(n);
- }
-}
-
-function number(n) {
- if (n instanceof tree.Dimension) {
- return parseFloat(n.unit.is('%') ? n.value / 100 : n.value);
- } else if (typeof(n) === 'number') {
- return n;
- } else {
- throw {
- error: "RuntimeError",
- message: "color functions take numbers as parameters"
- };
- }
-}
-
-function clamp(val) {
- return Math.min(1, Math.max(0, val));
-}
-
-tree.functionCall = function(env, currentFileInfo) {
- this.env = env;
- this.currentFileInfo = currentFileInfo;
-};
-
-tree.functionCall.prototype = tree.functions;
-
-})(require('./tree'));
-
-(function (tree) {
- tree.colors = {
- 'aliceblue':'#f0f8ff',
- 'antiquewhite':'#faebd7',
- 'aqua':'#00ffff',
- 'aquamarine':'#7fffd4',
- 'azure':'#f0ffff',
- 'beige':'#f5f5dc',
- 'bisque':'#ffe4c4',
- 'black':'#000000',
- 'blanchedalmond':'#ffebcd',
- 'blue':'#0000ff',
- 'blueviolet':'#8a2be2',
- 'brown':'#a52a2a',
- 'burlywood':'#deb887',
- 'cadetblue':'#5f9ea0',
- 'chartreuse':'#7fff00',
- 'chocolate':'#d2691e',
- 'coral':'#ff7f50',
- 'cornflowerblue':'#6495ed',
- 'cornsilk':'#fff8dc',
- 'crimson':'#dc143c',
- 'cyan':'#00ffff',
- 'darkblue':'#00008b',
- 'darkcyan':'#008b8b',
- 'darkgoldenrod':'#b8860b',
- 'darkgray':'#a9a9a9',
- 'darkgrey':'#a9a9a9',
- 'darkgreen':'#006400',
- 'darkkhaki':'#bdb76b',
- 'darkmagenta':'#8b008b',
- 'darkolivegreen':'#556b2f',
- 'darkorange':'#ff8c00',
- 'darkorchid':'#9932cc',
- 'darkred':'#8b0000',
- 'darksalmon':'#e9967a',
- 'darkseagreen':'#8fbc8f',
- 'darkslateblue':'#483d8b',
- 'darkslategray':'#2f4f4f',
- 'darkslategrey':'#2f4f4f',
- 'darkturquoise':'#00ced1',
- 'darkviolet':'#9400d3',
- 'deeppink':'#ff1493',
- 'deepskyblue':'#00bfff',
- 'dimgray':'#696969',
- 'dimgrey':'#696969',
- 'dodgerblue':'#1e90ff',
- 'firebrick':'#b22222',
- 'floralwhite':'#fffaf0',
- 'forestgreen':'#228b22',
- 'fuchsia':'#ff00ff',
- 'gainsboro':'#dcdcdc',
- 'ghostwhite':'#f8f8ff',
- 'gold':'#ffd700',
- 'goldenrod':'#daa520',
- 'gray':'#808080',
- 'grey':'#808080',
- 'green':'#008000',
- 'greenyellow':'#adff2f',
- 'honeydew':'#f0fff0',
- 'hotpink':'#ff69b4',
- 'indianred':'#cd5c5c',
- 'indigo':'#4b0082',
- 'ivory':'#fffff0',
- 'khaki':'#f0e68c',
- 'lavender':'#e6e6fa',
- 'lavenderblush':'#fff0f5',
- 'lawngreen':'#7cfc00',
- 'lemonchiffon':'#fffacd',
- 'lightblue':'#add8e6',
- 'lightcoral':'#f08080',
- 'lightcyan':'#e0ffff',
- 'lightgoldenrodyellow':'#fafad2',
- 'lightgray':'#d3d3d3',
- 'lightgrey':'#d3d3d3',
- 'lightgreen':'#90ee90',
- 'lightpink':'#ffb6c1',
- 'lightsalmon':'#ffa07a',
- 'lightseagreen':'#20b2aa',
- 'lightskyblue':'#87cefa',
- 'lightslategray':'#778899',
- 'lightslategrey':'#778899',
- 'lightsteelblue':'#b0c4de',
- 'lightyellow':'#ffffe0',
- 'lime':'#00ff00',
- 'limegreen':'#32cd32',
- 'linen':'#faf0e6',
- 'magenta':'#ff00ff',
- 'maroon':'#800000',
- 'mediumaquamarine':'#66cdaa',
- 'mediumblue':'#0000cd',
- 'mediumorchid':'#ba55d3',
- 'mediumpurple':'#9370d8',
- 'mediumseagreen':'#3cb371',
- 'mediumslateblue':'#7b68ee',
- 'mediumspringgreen':'#00fa9a',
- 'mediumturquoise':'#48d1cc',
- 'mediumvioletred':'#c71585',
- 'midnightblue':'#191970',
- 'mintcream':'#f5fffa',
- 'mistyrose':'#ffe4e1',
- 'moccasin':'#ffe4b5',
- 'navajowhite':'#ffdead',
- 'navy':'#000080',
- 'oldlace':'#fdf5e6',
- 'olive':'#808000',
- 'olivedrab':'#6b8e23',
- 'orange':'#ffa500',
- 'orangered':'#ff4500',
- 'orchid':'#da70d6',
- 'palegoldenrod':'#eee8aa',
- 'palegreen':'#98fb98',
- 'paleturquoise':'#afeeee',
- 'palevioletred':'#d87093',
- 'papayawhip':'#ffefd5',
- 'peachpuff':'#ffdab9',
- 'peru':'#cd853f',
- 'pink':'#ffc0cb',
- 'plum':'#dda0dd',
- 'powderblue':'#b0e0e6',
- 'purple':'#800080',
- 'red':'#ff0000',
- 'rosybrown':'#bc8f8f',
- 'royalblue':'#4169e1',
- 'saddlebrown':'#8b4513',
- 'salmon':'#fa8072',
- 'sandybrown':'#f4a460',
- 'seagreen':'#2e8b57',
- 'seashell':'#fff5ee',
- 'sienna':'#a0522d',
- 'silver':'#c0c0c0',
- 'skyblue':'#87ceeb',
- 'slateblue':'#6a5acd',
- 'slategray':'#708090',
- 'slategrey':'#708090',
- 'snow':'#fffafa',
- 'springgreen':'#00ff7f',
- 'steelblue':'#4682b4',
- 'tan':'#d2b48c',
- 'teal':'#008080',
- 'thistle':'#d8bfd8',
- 'tomato':'#ff6347',
- 'turquoise':'#40e0d0',
- 'violet':'#ee82ee',
- 'wheat':'#f5deb3',
- 'white':'#ffffff',
- 'whitesmoke':'#f5f5f5',
- 'yellow':'#ffff00',
- 'yellowgreen':'#9acd32'
- };
-})(require('./tree'));
-
-(function (tree) {
-
-tree.debugInfo = function(env, ctx, lineSeperator) {
- var result="";
- if (env.dumpLineNumbers && !env.compress) {
- switch(env.dumpLineNumbers) {
- case 'comments':
- result = tree.debugInfo.asComment(ctx);
- break;
- case 'mediaquery':
- result = tree.debugInfo.asMediaQuery(ctx);
- break;
- case 'all':
- result = tree.debugInfo.asComment(ctx) + (lineSeperator || "") + tree.debugInfo.asMediaQuery(ctx);
- break;
- }
- }
- return result;
-};
-
-tree.debugInfo.asComment = function(ctx) {
- return '/* line ' + ctx.debugInfo.lineNumber + ', ' + ctx.debugInfo.fileName + ' */\n';
-};
-
-tree.debugInfo.asMediaQuery = function(ctx) {
- return '@media -sass-debug-info{filename{font-family:' +
- ('file://' + ctx.debugInfo.fileName).replace(/([.:/\\])/g, function (a) {
- if (a == '\\') {
- a = '\/';
- }
- return '\\' + a;
- }) +
- '}line{font-family:\\00003' + ctx.debugInfo.lineNumber + '}}\n';
-};
-
-tree.find = function (obj, fun) {
- for (var i = 0, r; i < obj.length; i++) {
- if (r = fun.call(obj, obj[i])) { return r; }
- }
- return null;
-};
-
-tree.jsify = function (obj) {
- if (Array.isArray(obj.value) && (obj.value.length > 1)) {
- return '[' + obj.value.map(function (v) { return v.toCSS(false); }).join(', ') + ']';
- } else {
- return obj.toCSS(false);
- }
-};
-
-tree.toCSS = function (env) {
- var strs = [];
- this.genCSS(env, {
- add: function(chunk, fileInfo, index) {
- strs.push(chunk);
- },
- isEmpty: function () {
- return strs.length === 0;
- }
- });
- return strs.join('');
-};
-
-tree.outputRuleset = function (env, output, rules) {
- output.add((env.compress ? '{' : ' {\n'));
- env.tabLevel = (env.tabLevel || 0) + 1;
- var tabRuleStr = env.compress ? '' : Array(env.tabLevel + 1).join(" "),
- tabSetStr = env.compress ? '' : Array(env.tabLevel).join(" ");
- for(var i = 0; i < rules.length; i++) {
- output.add(tabRuleStr);
- rules[i].genCSS(env, output);
- output.add(env.compress ? '' : '\n');
- }
- env.tabLevel--;
- output.add(tabSetStr + "}");
-};
-
-})(require('./tree'));
-
-(function (tree) {
-
-tree.Alpha = function (val) {
- this.value = val;
-};
-tree.Alpha.prototype = {
- type: "Alpha",
- accept: function (visitor) {
- this.value = visitor.visit(this.value);
- },
- eval: function (env) {
- if (this.value.eval) { return new tree.Alpha(this.value.eval(env)); }
- return this;
- },
- genCSS: function (env, output) {
- output.add("alpha(opacity=");
-
- if (this.value.genCSS) {
- this.value.genCSS(env, output);
- } else {
- output.add(this.value);
- }
-
- output.add(")");
- },
- toCSS: tree.toCSS
-};
-
-})(require('../tree'));
-
-(function (tree) {
-
-tree.Anonymous = function (string, index, currentFileInfo, mapLines) {
- this.value = string.value || string;
- this.index = index;
- this.mapLines = mapLines;
- this.currentFileInfo = currentFileInfo;
-};
-tree.Anonymous.prototype = {
- type: "Anonymous",
- eval: function () { return this; },
- compare: function (x) {
- if (!x.toCSS) {
- return -1;
- }
-
- var left = this.toCSS(),
- right = x.toCSS();
-
- if (left === right) {
- return 0;
- }
-
- return left < right ? -1 : 1;
- },
- genCSS: function (env, output) {
- output.add(this.value, this.currentFileInfo, this.index, this.mapLines);
- },
- toCSS: tree.toCSS
-};
-
-})(require('../tree'));
-
-(function (tree) {
-
-tree.Assignment = function (key, val) {
- this.key = key;
- this.value = val;
-};
-tree.Assignment.prototype = {
- type: "Assignment",
- accept: function (visitor) {
- this.value = visitor.visit(this.value);
- },
- eval: function (env) {
- if (this.value.eval) {
- return new(tree.Assignment)(this.key, this.value.eval(env));
- }
- return this;
- },
- genCSS: function (env, output) {
- output.add(this.key + '=');
- if (this.value.genCSS) {
- this.value.genCSS(env, output);
- } else {
- output.add(this.value);
- }
- },
- toCSS: tree.toCSS
-};
-
-})(require('../tree'));
-
-(function (tree) {
-
-//
-// A function call node.
-//
-tree.Call = function (name, args, index, currentFileInfo) {
- this.name = name;
- this.args = args;
- this.index = index;
- this.currentFileInfo = currentFileInfo;
-};
-tree.Call.prototype = {
- type: "Call",
- accept: function (visitor) {
- this.args = visitor.visit(this.args);
- },
- //
- // When evaluating a function call,
- // we either find the function in `tree.functions` [1],
- // in which case we call it, passing the evaluated arguments,
- // if this returns null or we cannot find the function, we
- // simply print it out as it appeared originally [2].
- //
- // The *functions.js* file contains the built-in functions.
- //
- // The reason why we evaluate the arguments, is in the case where
- // we try to pass a variable to a function, like: `saturate(@color)`.
- // The function should receive the value, not the variable.
- //
- eval: function (env) {
- var args = this.args.map(function (a) { return a.eval(env); }),
- nameLC = this.name.toLowerCase(),
- result, func;
-
- if (nameLC in tree.functions) { // 1.
- try {
- func = new tree.functionCall(env, this.currentFileInfo);
- result = func[nameLC].apply(func, args);
- /*jshint eqnull:true */
- if (result != null) {
- return result;
- }
- } catch (e) {
- throw { type: e.type || "Runtime",
- message: "error evaluating function `" + this.name + "`" +
- (e.message ? ': ' + e.message : ''),
- index: this.index, filename: this.currentFileInfo.filename };
- }
- }
-
- return new tree.Call(this.name, args, this.index, this.currentFileInfo);
- },
-
- genCSS: function (env, output) {
- output.add(this.name + "(", this.currentFileInfo, this.index);
-
- for(var i = 0; i < this.args.length; i++) {
- this.args[i].genCSS(env, output);
- if (i + 1 < this.args.length) {
- output.add(", ");
- }
- }
-
- output.add(")");
- },
-
- toCSS: tree.toCSS
-};
-
-})(require('../tree'));
-
-(function (tree) {
-//
-// RGB Colors - #ff0014, #eee
-//
-tree.Color = function (rgb, a) {
- //
- // The end goal here, is to parse the arguments
- // into an integer triplet, such as `128, 255, 0`
- //
- // This facilitates operations and conversions.
- //
- if (Array.isArray(rgb)) {
- this.rgb = rgb;
- } else if (rgb.length == 6) {
- this.rgb = rgb.match(/.{2}/g).map(function (c) {
- return parseInt(c, 16);
- });
- } else {
- this.rgb = rgb.split('').map(function (c) {
- return parseInt(c + c, 16);
- });
- }
- this.alpha = typeof(a) === 'number' ? a : 1;
-};
-
-var transparentKeyword = "transparent";
-
-tree.Color.prototype = {
- type: "Color",
- eval: function () { return this; },
- luma: function () { return (0.2126 * this.rgb[0] / 255) + (0.7152 * this.rgb[1] / 255) + (0.0722 * this.rgb[2] / 255); },
-
- genCSS: function (env, output) {
- output.add(this.toCSS(env));
- },
- toCSS: function (env, doNotCompress) {
- var compress = env && env.compress && !doNotCompress;
-
- // If we have some transparency, the only way to represent it
- // is via `rgba`. Otherwise, we use the hex representation,
- // which has better compatibility with older browsers.
- // Values are capped between `0` and `255`, rounded and zero-padded.
- if (this.alpha < 1.0) {
- if (this.alpha === 0 && this.isTransparentKeyword) {
- return transparentKeyword;
- }
- return "rgba(" + this.rgb.map(function (c) {
- return Math.round(c);
- }).concat(this.alpha).join(',' + (compress ? '' : ' ')) + ")";
- } else {
- var color = this.toRGB();
-
- if (compress) {
- var splitcolor = color.split('');
-
- // Convert color to short format
- if (splitcolor[1] === splitcolor[2] && splitcolor[3] === splitcolor[4] && splitcolor[5] === splitcolor[6]) {
- color = '#' + splitcolor[1] + splitcolor[3] + splitcolor[5];
- }
- }
-
- return color;
- }
- },
-
- //
- // Operations have to be done per-channel, if not,
- // channels will spill onto each other. Once we have
- // our result, in the form of an integer triplet,
- // we create a new Color node to hold the result.
- //
- operate: function (env, op, other) {
- var result = [];
-
- if (! (other instanceof tree.Color)) {
- other = other.toColor();
- }
-
- for (var c = 0; c < 3; c++) {
- result[c] = tree.operate(env, op, this.rgb[c], other.rgb[c]);
- }
- return new(tree.Color)(result, this.alpha + other.alpha);
- },
-
- toRGB: function () {
- return '#' + this.rgb.map(function (i) {
- i = Math.round(i);
- i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16);
- return i.length === 1 ? '0' + i : i;
- }).join('');
- },
-
- toHSL: function () {
- var r = this.rgb[0] / 255,
- g = this.rgb[1] / 255,
- b = this.rgb[2] / 255,
- a = this.alpha;
-
- var max = Math.max(r, g, b), min = Math.min(r, g, b);
- var h, s, l = (max + min) / 2, d = max - min;
-
- if (max === min) {
- h = s = 0;
- } else {
- s = l > 0.5 ? d / (2 - max - min) : d / (max + min);
-
- switch (max) {
- case r: h = (g - b) / d + (g < b ? 6 : 0); break;
- case g: h = (b - r) / d + 2; break;
- case b: h = (r - g) / d + 4; break;
- }
- h /= 6;
- }
- return { h: h * 360, s: s, l: l, a: a };
- },
- //Adapted from http://mjijackson.com/2008/02/rgb-to-hsl-and-rgb-to-hsv-color-model-conversion-algorithms-in-javascript
- toHSV: function () {
- var r = this.rgb[0] / 255,
- g = this.rgb[1] / 255,
- b = this.rgb[2] / 255,
- a = this.alpha;
-
- var max = Math.max(r, g, b), min = Math.min(r, g, b);
- var h, s, v = max;
-
- var d = max - min;
- if (max === 0) {
- s = 0;
- } else {
- s = d / max;
- }
-
- if (max === min) {
- h = 0;
- } else {
- switch(max){
- case r: h = (g - b) / d + (g < b ? 6 : 0); break;
- case g: h = (b - r) / d + 2; break;
- case b: h = (r - g) / d + 4; break;
- }
- h /= 6;
- }
- return { h: h * 360, s: s, v: v, a: a };
- },
- toARGB: function () {
- var argb = [Math.round(this.alpha * 255)].concat(this.rgb);
- return '#' + argb.map(function (i) {
- i = Math.round(i);
- i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16);
- return i.length === 1 ? '0' + i : i;
- }).join('');
- },
- compare: function (x) {
- if (!x.rgb) {
- return -1;
- }
-
- return (x.rgb[0] === this.rgb[0] &&
- x.rgb[1] === this.rgb[1] &&
- x.rgb[2] === this.rgb[2] &&
- x.alpha === this.alpha) ? 0 : -1;
- }
-};
-
-tree.Color.fromKeyword = function(keyword) {
- if (tree.colors.hasOwnProperty(keyword)) {
- // detect named color
- return new(tree.Color)(tree.colors[keyword].slice(1));
- }
- if (keyword === transparentKeyword) {
- var transparent = new(tree.Color)([0, 0, 0], 0);
- transparent.isTransparentKeyword = true;
- return transparent;
- }
-};
-
-
-})(require('../tree'));
-
-(function (tree) {
-
-tree.Comment = function (value, silent, index, currentFileInfo) {
- this.value = value;
- this.silent = !!silent;
- this.currentFileInfo = currentFileInfo;
-};
-tree.Comment.prototype = {
- type: "Comment",
- genCSS: function (env, output) {
- if (this.debugInfo) {
- output.add(tree.debugInfo(env, this), this.currentFileInfo, this.index);
- }
- output.add(this.value.trim()); //TODO shouldn't need to trim, we shouldn't grab the \n
- },
- toCSS: tree.toCSS,
- isSilent: function(env) {
- var isReference = (this.currentFileInfo && this.currentFileInfo.reference && !this.isReferenced),
- isCompressed = env.compress && !this.value.match(/^\/\*!/);
- return this.silent || isReference || isCompressed;
- },
- eval: function () { return this; },
- markReferenced: function () {
- this.isReferenced = true;
- }
-};
-
-})(require('../tree'));
-
-(function (tree) {
-
-tree.Condition = function (op, l, r, i, negate) {
- this.op = op.trim();
- this.lvalue = l;
- this.rvalue = r;
- this.index = i;
- this.negate = negate;
-};
-tree.Condition.prototype = {
- type: "Condition",
- accept: function (visitor) {
- this.lvalue = visitor.visit(this.lvalue);
- this.rvalue = visitor.visit(this.rvalue);
- },
- eval: function (env) {
- var a = this.lvalue.eval(env),
- b = this.rvalue.eval(env);
-
- var i = this.index, result;
-
- result = (function (op) {
- switch (op) {
- case 'and':
- return a && b;
- case 'or':
- return a || b;
- default:
- if (a.compare) {
- result = a.compare(b);
- } else if (b.compare) {
- result = b.compare(a);
- } else {
- throw { type: "Type",
- message: "Unable to perform comparison",
- index: i };
- }
- switch (result) {
- case -1: return op === '<' || op === '=<' || op === '<=';
- case 0: return op === '=' || op === '>=' || op === '=<' || op === '<=';
- case 1: return op === '>' || op === '>=';
- }
- }
- })(this.op);
- return this.negate ? !result : result;
- }
-};
-
-})(require('../tree'));
-
-(function (tree) {
-
-//
-// A number with a unit
-//
-tree.Dimension = function (value, unit) {
- this.value = parseFloat(value);
- this.unit = (unit && unit instanceof tree.Unit) ? unit :
- new(tree.Unit)(unit ? [unit] : undefined);
-};
-
-tree.Dimension.prototype = {
- type: "Dimension",
- accept: function (visitor) {
- this.unit = visitor.visit(this.unit);
- },
- eval: function (env) {
- return this;
- },
- toColor: function () {
- return new(tree.Color)([this.value, this.value, this.value]);
- },
- genCSS: function (env, output) {
- if ((env && env.strictUnits) && !this.unit.isSingular()) {
- throw new Error("Multiple units in dimension. Correct the units or use the unit function. Bad unit: "+this.unit.toString());
- }
-
- var value = this.value,
- strValue = String(value);
-
- if (value !== 0 && value < 0.000001 && value > -0.000001) {
- // would be output 1e-6 etc.
- strValue = value.toFixed(20).replace(/0+$/, "");
- }
-
- if (env && env.compress) {
- // Zero values doesn't need a unit
- if (value === 0 && this.unit.isLength()) {
- output.add(strValue);
- return;
- }
-
- // Float values doesn't need a leading zero
- if (value > 0 && value < 1) {
- strValue = (strValue).substr(1);
- }
- }
-
- output.add(strValue);
- this.unit.genCSS(env, output);
- },
- toCSS: tree.toCSS,
-
- // In an operation between two Dimensions,
- // we default to the first Dimension's unit,
- // so `1px + 2` will yield `3px`.
- operate: function (env, op, other) {
- /*jshint noempty:false */
- var value = tree.operate(env, op, this.value, other.value),
- unit = this.unit.clone();
-
- if (op === '+' || op === '-') {
- if (unit.numerator.length === 0 && unit.denominator.length === 0) {
- unit.numerator = other.unit.numerator.slice(0);
- unit.denominator = other.unit.denominator.slice(0);
- } else if (other.unit.numerator.length === 0 && unit.denominator.length === 0) {
- // do nothing
- } else {
- other = other.convertTo(this.unit.usedUnits());
-
- if(env.strictUnits && other.unit.toString() !== unit.toString()) {
- throw new Error("Incompatible units. Change the units or use the unit function. Bad units: '" + unit.toString() +
- "' and '" + other.unit.toString() + "'.");
- }
-
- value = tree.operate(env, op, this.value, other.value);
- }
- } else if (op === '*') {
- unit.numerator = unit.numerator.concat(other.unit.numerator).sort();
- unit.denominator = unit.denominator.concat(other.unit.denominator).sort();
- unit.cancel();
- } else if (op === '/') {
- unit.numerator = unit.numerator.concat(other.unit.denominator).sort();
- unit.denominator = unit.denominator.concat(other.unit.numerator).sort();
- unit.cancel();
- }
- return new(tree.Dimension)(value, unit);
- },
-
- compare: function (other) {
- if (other instanceof tree.Dimension) {
- var a = this.unify(), b = other.unify(),
- aValue = a.value, bValue = b.value;
-
- if (bValue > aValue) {
- return -1;
- } else if (bValue < aValue) {
- return 1;
- } else {
- if (!b.unit.isEmpty() && a.unit.compare(b.unit) !== 0) {
- return -1;
- }
- return 0;
- }
- } else {
- return -1;
- }
- },
-
- unify: function () {
- return this.convertTo({ length: 'm', duration: 's', angle: 'rad' });
- },
-
- convertTo: function (conversions) {
- var value = this.value, unit = this.unit.clone(),
- i, groupName, group, targetUnit, derivedConversions = {}, applyUnit;
-
- if (typeof conversions === 'string') {
- for(i in tree.UnitConversions) {
- if (tree.UnitConversions[i].hasOwnProperty(conversions)) {
- derivedConversions = {};
- derivedConversions[i] = conversions;
- }
- }
- conversions = derivedConversions;
- }
- applyUnit = function (atomicUnit, denominator) {
- /*jshint loopfunc:true */
- if (group.hasOwnProperty(atomicUnit)) {
- if (denominator) {
- value = value / (group[atomicUnit] / group[targetUnit]);
- } else {
- value = value * (group[atomicUnit] / group[targetUnit]);
- }
-
- return targetUnit;
- }
-
- return atomicUnit;
- };
-
- for (groupName in conversions) {
- if (conversions.hasOwnProperty(groupName)) {
- targetUnit = conversions[groupName];
- group = tree.UnitConversions[groupName];
-
- unit.map(applyUnit);
- }
- }
-
- unit.cancel();
-
- return new(tree.Dimension)(value, unit);
- }
-};
-
-// http://www.w3.org/TR/css3-values/#absolute-lengths
-tree.UnitConversions = {
- length: {
- 'm': 1,
- 'cm': 0.01,
- 'mm': 0.001,
- 'in': 0.0254,
- 'pt': 0.0254 / 72,
- 'pc': 0.0254 / 72 * 12
- },
- duration: {
- 's': 1,
- 'ms': 0.001
- },
- angle: {
- 'rad': 1/(2*Math.PI),
- 'deg': 1/360,
- 'grad': 1/400,
- 'turn': 1
- }
-};
-
-tree.Unit = function (numerator, denominator, backupUnit) {
- this.numerator = numerator ? numerator.slice(0).sort() : [];
- this.denominator = denominator ? denominator.slice(0).sort() : [];
- this.backupUnit = backupUnit;
-};
-
-tree.Unit.prototype = {
- type: "Unit",
- clone: function () {
- return new tree.Unit(this.numerator.slice(0), this.denominator.slice(0), this.backupUnit);
- },
- genCSS: function (env, output) {
- if (this.numerator.length >= 1) {
- output.add(this.numerator[0]);
- } else
- if (this.denominator.length >= 1) {
- output.add(this.denominator[0]);
- } else
- if ((!env || !env.strictUnits) && this.backupUnit) {
- output.add(this.backupUnit);
- }
- },
- toCSS: tree.toCSS,
-
- toString: function () {
- var i, returnStr = this.numerator.join("*");
- for (i = 0; i < this.denominator.length; i++) {
- returnStr += "/" + this.denominator[i];
- }
- return returnStr;
- },
-
- compare: function (other) {
- return this.is(other.toString()) ? 0 : -1;
- },
-
- is: function (unitString) {
- return this.toString() === unitString;
- },
-
- isLength: function () {
- return Boolean(this.toCSS().match(/px|em|%|in|cm|mm|pc|pt|ex/));
- },
-
- isEmpty: function () {
- return this.numerator.length === 0 && this.denominator.length === 0;
- },
-
- isSingular: function() {
- return this.numerator.length <= 1 && this.denominator.length === 0;
- },
-
- map: function(callback) {
- var i;
-
- for (i = 0; i < this.numerator.length; i++) {
- this.numerator[i] = callback(this.numerator[i], false);
- }
-
- for (i = 0; i < this.denominator.length; i++) {
- this.denominator[i] = callback(this.denominator[i], true);
- }
- },
-
- usedUnits: function() {
- var group, result = {}, mapUnit;
-
- mapUnit = function (atomicUnit) {
- /*jshint loopfunc:true */
- if (group.hasOwnProperty(atomicUnit) && !result[groupName]) {
- result[groupName] = atomicUnit;
- }
-
- return atomicUnit;
- };
-
- for (var groupName in tree.UnitConversions) {
- if (tree.UnitConversions.hasOwnProperty(groupName)) {
- group = tree.UnitConversions[groupName];
-
- this.map(mapUnit);
- }
- }
-
- return result;
- },
-
- cancel: function () {
- var counter = {}, atomicUnit, i, backup;
-
- for (i = 0; i < this.numerator.length; i++) {
- atomicUnit = this.numerator[i];
- if (!backup) {
- backup = atomicUnit;
- }
- counter[atomicUnit] = (counter[atomicUnit] || 0) + 1;
- }
-
- for (i = 0; i < this.denominator.length; i++) {
- atomicUnit = this.denominator[i];
- if (!backup) {
- backup = atomicUnit;
- }
- counter[atomicUnit] = (counter[atomicUnit] || 0) - 1;
- }
-
- this.numerator = [];
- this.denominator = [];
-
- for (atomicUnit in counter) {
- if (counter.hasOwnProperty(atomicUnit)) {
- var count = counter[atomicUnit];
-
- if (count > 0) {
- for (i = 0; i < count; i++) {
- this.numerator.push(atomicUnit);
- }
- } else if (count < 0) {
- for (i = 0; i < -count; i++) {
- this.denominator.push(atomicUnit);
- }
- }
- }
- }
-
- if (this.numerator.length === 0 && this.denominator.length === 0 && backup) {
- this.backupUnit = backup;
- }
-
- this.numerator.sort();
- this.denominator.sort();
- }
-};
-
-})(require('../tree'));
-
-(function (tree) {
-
-tree.Directive = function (name, value, index, currentFileInfo) {
- this.name = name;
-
- if (Array.isArray(value)) {
- this.rules = [new(tree.Ruleset)([], value)];
- this.rules[0].allowImports = true;
- } else {
- this.value = value;
- }
- this.currentFileInfo = currentFileInfo;
-
-};
-tree.Directive.prototype = {
- type: "Directive",
- accept: function (visitor) {
- this.rules = visitor.visit(this.rules);
- this.value = visitor.visit(this.value);
- },
- genCSS: function (env, output) {
- output.add(this.name, this.currentFileInfo, this.index);
- if (this.rules) {
- tree.outputRuleset(env, output, this.rules);
- } else {
- output.add(' ');
- this.value.genCSS(env, output);
- output.add(';');
- }
- },
- toCSS: tree.toCSS,
- eval: function (env) {
- var evaldDirective = this;
- if (this.rules) {
- env.frames.unshift(this);
- evaldDirective = new(tree.Directive)(this.name, null, this.index, this.currentFileInfo);
- evaldDirective.rules = [this.rules[0].eval(env)];
- evaldDirective.rules[0].root = true;
- env.frames.shift();
- }
- return evaldDirective;
- },
- variable: function (name) { return tree.Ruleset.prototype.variable.call(this.rules[0], name); },
- find: function () { return tree.Ruleset.prototype.find.apply(this.rules[0], arguments); },
- rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.rules[0]); },
- markReferenced: function () {
- var i, rules;
- this.isReferenced = true;
- if (this.rules) {
- rules = this.rules[0].rules;
- for (i = 0; i < rules.length; i++) {
- if (rules[i].markReferenced) {
- rules[i].markReferenced();
- }
- }
- }
- }
-};
-
-})(require('../tree'));
-
-(function (tree) {
-
-tree.Element = function (combinator, value, index, currentFileInfo) {
- this.combinator = combinator instanceof tree.Combinator ?
- combinator : new(tree.Combinator)(combinator);
-
- if (typeof(value) === 'string') {
- this.value = value.trim();
- } else if (value) {
- this.value = value;
- } else {
- this.value = "";
- }
- this.index = index;
- this.currentFileInfo = currentFileInfo;
-};
-tree.Element.prototype = {
- type: "Element",
- accept: function (visitor) {
- this.combinator = visitor.visit(this.combinator);
- this.value = visitor.visit(this.value);
- },
- eval: function (env) {
- return new(tree.Element)(this.combinator,
- this.value.eval ? this.value.eval(env) : this.value,
- this.index,
- this.currentFileInfo);
- },
- genCSS: function (env, output) {
- output.add(this.toCSS(env), this.currentFileInfo, this.index);
- },
- toCSS: function (env) {
- var value = (this.value.toCSS ? this.value.toCSS(env) : this.value);
- if (value === '' && this.combinator.value.charAt(0) === '&') {
- return '';
- } else {
- return this.combinator.toCSS(env || {}) + value;
- }
- }
-};
-
-tree.Attribute = function (key, op, value) {
- this.key = key;
- this.op = op;
- this.value = value;
-};
-tree.Attribute.prototype = {
- type: "Attribute",
- accept: function (visitor) {
- this.value = visitor.visit(this.value);
- },
- eval: function (env) {
- return new(tree.Attribute)(this.key.eval ? this.key.eval(env) : this.key,
- this.op, (this.value && this.value.eval) ? this.value.eval(env) : this.value);
- },
- genCSS: function (env, output) {
- output.add(this.toCSS(env));
- },
- toCSS: function (env) {
- var value = this.key.toCSS ? this.key.toCSS(env) : this.key;
-
- if (this.op) {
- value += this.op;
- value += (this.value.toCSS ? this.value.toCSS(env) : this.value);
- }
-
- return '[' + value + ']';
- }
-};
-
-tree.Combinator = function (value) {
- if (value === ' ') {
- this.value = ' ';
- } else {
- this.value = value ? value.trim() : "";
- }
-};
-tree.Combinator.prototype = {
- type: "Combinator",
- _outputMap: {
- '' : '',
- ' ' : ' ',
- ':' : ' :',
- '+' : ' + ',
- '~' : ' ~ ',
- '>' : ' > ',
- '|' : '|'
- },
- _outputMapCompressed: {
- '' : '',
- ' ' : ' ',
- ':' : ' :',
- '+' : '+',
- '~' : '~',
- '>' : '>',
- '|' : '|'
- },
- genCSS: function (env, output) {
- output.add((env.compress ? this._outputMapCompressed : this._outputMap)[this.value]);
- },
- toCSS: tree.toCSS
-};
-
-})(require('../tree'));
-
-(function (tree) {
-
-tree.Expression = function (value) { this.value = value; };
-tree.Expression.prototype = {
- type: "Expression",
- accept: function (visitor) {
- this.value = visitor.visit(this.value);
- },
- eval: function (env) {
- var returnValue,
- inParenthesis = this.parens && !this.parensInOp,
- doubleParen = false;
- if (inParenthesis) {
- env.inParenthesis();
- }
- if (this.value.length > 1) {
- returnValue = new(tree.Expression)(this.value.map(function (e) {
- return e.eval(env);
- }));
- } else if (this.value.length === 1) {
- if (this.value[0].parens && !this.value[0].parensInOp) {
- doubleParen = true;
- }
- returnValue = this.value[0].eval(env);
- } else {
- returnValue = this;
- }
- if (inParenthesis) {
- env.outOfParenthesis();
- }
- if (this.parens && this.parensInOp && !(env.isMathOn()) && !doubleParen) {
- returnValue = new(tree.Paren)(returnValue);
- }
- return returnValue;
- },
- genCSS: function (env, output) {
- for(var i = 0; i < this.value.length; i++) {
- this.value[i].genCSS(env, output);
- if (i + 1 < this.value.length) {
- output.add(" ");
- }
- }
- },
- toCSS: tree.toCSS,
- throwAwayComments: function () {
- this.value = this.value.filter(function(v) {
- return !(v instanceof tree.Comment);
- });
- }
-};
-
-})(require('../tree'));
-
-(function (tree) {
-
-tree.Extend = function Extend(selector, option, index) {
- this.selector = selector;
- this.option = option;
- this.index = index;
-
- switch(option) {
- case "all":
- this.allowBefore = true;
- this.allowAfter = true;
- break;
- default:
- this.allowBefore = false;
- this.allowAfter = false;
- break;
- }
-};
-
-tree.Extend.prototype = {
- type: "Extend",
- accept: function (visitor) {
- this.selector = visitor.visit(this.selector);
- },
- eval: function (env) {
- return new(tree.Extend)(this.selector.eval(env), this.option, this.index);
- },
- clone: function (env) {
- return new(tree.Extend)(this.selector, this.option, this.index);
- },
- findSelfSelectors: function (selectors) {
- var selfElements = [],
- i,
- selectorElements;
-
- for(i = 0; i < selectors.length; i++) {
- selectorElements = selectors[i].elements;
- // duplicate the logic in genCSS function inside the selector node.
- // future TODO - move both logics into the selector joiner visitor
- if (i > 0 && selectorElements.length && selectorElements[0].combinator.value === "") {
- selectorElements[0].combinator.value = ' ';
- }
- selfElements = selfElements.concat(selectors[i].elements);
- }
-
- this.selfSelectors = [{ elements: selfElements }];
- }
-};
-
-})(require('../tree'));
-
-(function (tree) {
-//
-// CSS @import node
-//
-// The general strategy here is that we don't want to wait
-// for the parsing to be completed, before we start importing
-// the file. That's because in the context of a browser,
-// most of the time will be spent waiting for the server to respond.
-//
-// On creation, we push the import path to our import queue, though
-// `import,push`, we also pass it a callback, which it'll call once
-// the file has been fetched, and parsed.
-//
-tree.Import = function (path, features, options, index, currentFileInfo) {
- this.options = options;
- this.index = index;
- this.path = path;
- this.features = features;
- this.currentFileInfo = currentFileInfo;
-
- if (this.options.less !== undefined || this.options.inline) {
- this.css = !this.options.less || this.options.inline;
- } else {
- var pathValue = this.getPath();
- if (pathValue && /css([\?;].*)?$/.test(pathValue)) {
- this.css = true;
- }
- }
-};
-
-//
-// The actual import node doesn't return anything, when converted to CSS.
-// The reason is that it's used at the evaluation stage, so that the rules
-// it imports can be treated like any other rules.
-//
-// In `eval`, we make sure all Import nodes get evaluated, recursively, so
-// we end up with a flat structure, which can easily be imported in the parent
-// ruleset.
-//
-tree.Import.prototype = {
- type: "Import",
- accept: function (visitor) {
- this.features = visitor.visit(this.features);
- this.path = visitor.visit(this.path);
- if (!this.options.inline) {
- this.root = visitor.visit(this.root);
- }
- },
- genCSS: function (env, output) {
- if (this.css) {
- output.add("@import ", this.currentFileInfo, this.index);
- this.path.genCSS(env, output);
- if (this.features) {
- output.add(" ");
- this.features.genCSS(env, output);
- }
- output.add(';');
- }
- },
- toCSS: tree.toCSS,
- getPath: function () {
- if (this.path instanceof tree.Quoted) {
- var path = this.path.value;
- return (this.css !== undefined || /(\.[a-z]*$)|([\?;].*)$/.test(path)) ? path : path + '.less';
- } else if (this.path instanceof tree.URL) {
- return this.path.value.value;
- }
- return null;
- },
- evalForImport: function (env) {
- return new(tree.Import)(this.path.eval(env), this.features, this.options, this.index, this.currentFileInfo);
- },
- evalPath: function (env) {
- var path = this.path.eval(env);
- var rootpath = this.currentFileInfo && this.currentFileInfo.rootpath;
-
- if (!(path instanceof tree.URL)) {
- if (rootpath) {
- var pathValue = path.value;
- // Add the base path if the import is relative
- if (pathValue && env.isPathRelative(pathValue)) {
- path.value = rootpath + pathValue;
- }
- }
- path.value = env.normalizePath(path.value);
- }
-
- return path;
- },
- eval: function (env) {
- var ruleset, features = this.features && this.features.eval(env);
-
- if (this.skip) { return []; }
-
- if (this.options.inline) {
- //todo needs to reference css file not import
- var contents = new(tree.Anonymous)(this.root, 0, {filename: this.importedFilename}, true);
- return this.features ? new(tree.Media)([contents], this.features.value) : [contents];
- } else if (this.css) {
- var newImport = new(tree.Import)(this.evalPath(env), features, this.options, this.index);
- if (!newImport.css && this.error) {
- throw this.error;
- }
- return newImport;
- } else {
- ruleset = new(tree.Ruleset)([], this.root.rules.slice(0));
-
- ruleset.evalImports(env);
-
- return this.features ? new(tree.Media)(ruleset.rules, this.features.value) : ruleset.rules;
- }
- }
-};
-
-})(require('../tree'));
-
-(function (tree) {
-
-tree.JavaScript = function (string, index, escaped) {
- this.escaped = escaped;
- this.expression = string;
- this.index = index;
-};
-tree.JavaScript.prototype = {
- type: "JavaScript",
- eval: function (env) {
- var result,
- that = this,
- context = {};
-
- var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) {
- return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env));
- });
-
- try {
- expression = new(Function)('return (' + expression + ')');
- } catch (e) {
- throw { message: "JavaScript evaluation error: " + e.message + " from `" + expression + "`" ,
- index: this.index };
- }
-
- for (var k in env.frames[0].variables()) {
- /*jshint loopfunc:true */
- context[k.slice(1)] = {
- value: env.frames[0].variables()[k].value,
- toJS: function () {
- return this.value.eval(env).toCSS();
- }
- };
- }
-
- try {
- result = expression.call(context);
- } catch (e) {
- throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" ,
- index: this.index };
- }
- if (typeof(result) === 'string') {
- return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index);
- } else if (Array.isArray(result)) {
- return new(tree.Anonymous)(result.join(', '));
- } else {
- return new(tree.Anonymous)(result);
- }
- }
-};
-
-})(require('../tree'));
-
-
-(function (tree) {
-
-tree.Keyword = function (value) { this.value = value; };
-tree.Keyword.prototype = {
- type: "Keyword",
- eval: function () { return this; },
- genCSS: function (env, output) {
- output.add(this.value);
- },
- toCSS: tree.toCSS,
- compare: function (other) {
- if (other instanceof tree.Keyword) {
- return other.value === this.value ? 0 : 1;
- } else {
- return -1;
- }
- }
-};
-
-tree.True = new(tree.Keyword)('true');
-tree.False = new(tree.Keyword)('false');
-
-})(require('../tree'));
-
-(function (tree) {
-
-tree.Media = function (value, features, index, currentFileInfo) {
- this.index = index;
- this.currentFileInfo = currentFileInfo;
-
- var selectors = this.emptySelectors();
-
- this.features = new(tree.Value)(features);
- this.rules = [new(tree.Ruleset)(selectors, value)];
- this.rules[0].allowImports = true;
-};
-tree.Media.prototype = {
- type: "Media",
- accept: function (visitor) {
- this.features = visitor.visit(this.features);
- this.rules = visitor.visit(this.rules);
- },
- genCSS: function (env, output) {
- output.add('@media ', this.currentFileInfo, this.index);
- this.features.genCSS(env, output);
- tree.outputRuleset(env, output, this.rules);
- },
- toCSS: tree.toCSS,
- eval: function (env) {
- if (!env.mediaBlocks) {
- env.mediaBlocks = [];
- env.mediaPath = [];
- }
-
- var media = new(tree.Media)([], [], this.index, this.currentFileInfo);
- if(this.debugInfo) {
- this.rules[0].debugInfo = this.debugInfo;
- media.debugInfo = this.debugInfo;
- }
- var strictMathBypass = false;
- if (!env.strictMath) {
- strictMathBypass = true;
- env.strictMath = true;
- }
- try {
- media.features = this.features.eval(env);
- }
- finally {
- if (strictMathBypass) {
- env.strictMath = false;
- }
- }
-
- env.mediaPath.push(media);
- env.mediaBlocks.push(media);
-
- env.frames.unshift(this.rules[0]);
- media.rules = [this.rules[0].eval(env)];
- env.frames.shift();
-
- env.mediaPath.pop();
-
- return env.mediaPath.length === 0 ? media.evalTop(env) :
- media.evalNested(env);
- },
- variable: function (name) { return tree.Ruleset.prototype.variable.call(this.rules[0], name); },
- find: function () { return tree.Ruleset.prototype.find.apply(this.rules[0], arguments); },
- rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.rules[0]); },
- emptySelectors: function() {
- var el = new(tree.Element)('', '&', this.index, this.currentFileInfo);
- return [new(tree.Selector)([el], null, null, this.index, this.currentFileInfo)];
- },
- markReferenced: function () {
- var i, rules = this.rules[0].rules;
- this.isReferenced = true;
- for (i = 0; i < rules.length; i++) {
- if (rules[i].markReferenced) {
- rules[i].markReferenced();
- }
- }
- },
-
- evalTop: function (env) {
- var result = this;
-
- // Render all dependent Media blocks.
- if (env.mediaBlocks.length > 1) {
- var selectors = this.emptySelectors();
- result = new(tree.Ruleset)(selectors, env.mediaBlocks);
- result.multiMedia = true;
- }
-
- delete env.mediaBlocks;
- delete env.mediaPath;
-
- return result;
- },
- evalNested: function (env) {
- var i, value,
- path = env.mediaPath.concat([this]);
-
- // Extract the media-query conditions separated with `,` (OR).
- for (i = 0; i < path.length; i++) {
- value = path[i].features instanceof tree.Value ?
- path[i].features.value : path[i].features;
- path[i] = Array.isArray(value) ? value : [value];
- }
-
- // Trace all permutations to generate the resulting media-query.
- //
- // (a, b and c) with nested (d, e) ->
- // a and d
- // a and e
- // b and c and d
- // b and c and e
- this.features = new(tree.Value)(this.permute(path).map(function (path) {
- path = path.map(function (fragment) {
- return fragment.toCSS ? fragment : new(tree.Anonymous)(fragment);
- });
-
- for(i = path.length - 1; i > 0; i--) {
- path.splice(i, 0, new(tree.Anonymous)("and"));
- }
-
- return new(tree.Expression)(path);
- }));
-
- // Fake a tree-node that doesn't output anything.
- return new(tree.Ruleset)([], []);
- },
- permute: function (arr) {
- if (arr.length === 0) {
- return [];
- } else if (arr.length === 1) {
- return arr[0];
- } else {
- var result = [];
- var rest = this.permute(arr.slice(1));
- for (var i = 0; i < rest.length; i++) {
- for (var j = 0; j < arr[0].length; j++) {
- result.push([arr[0][j]].concat(rest[i]));
- }
- }
- return result;
- }
- },
- bubbleSelectors: function (selectors) {
- this.rules = [new(tree.Ruleset)(selectors.slice(0), [this.rules[0]])];
- }
-};
-
-})(require('../tree'));
-
-(function (tree) {
-
-tree.mixin = {};
-tree.mixin.Call = function (elements, args, index, currentFileInfo, important) {
- this.selector = new(tree.Selector)(elements);
- this.arguments = args;
- this.index = index;
- this.currentFileInfo = currentFileInfo;
- this.important = important;
-};
-tree.mixin.Call.prototype = {
- type: "MixinCall",
- accept: function (visitor) {
- this.selector = visitor.visit(this.selector);
- this.arguments = visitor.visit(this.arguments);
- },
- eval: function (env) {
- var mixins, mixin, args, rules = [], match = false, i, m, f, isRecursive, isOneFound, rule;
-
- args = this.arguments && this.arguments.map(function (a) {
- return { name: a.name, value: a.value.eval(env) };
- });
-
- for (i = 0; i < env.frames.length; i++) {
- if ((mixins = env.frames[i].find(this.selector)).length > 0) {
- isOneFound = true;
- for (m = 0; m < mixins.length; m++) {
- mixin = mixins[m];
- isRecursive = false;
- for(f = 0; f < env.frames.length; f++) {
- if ((!(mixin instanceof tree.mixin.Definition)) && mixin === (env.frames[f].originalRuleset || env.frames[f])) {
- isRecursive = true;
- break;
- }
- }
- if (isRecursive) {
- continue;
- }
- if (mixin.matchArgs(args, env)) {
- if (!mixin.matchCondition || mixin.matchCondition(args, env)) {
- try {
- if (!(mixin instanceof tree.mixin.Definition)) {
- mixin = new tree.mixin.Definition("", [], mixin.rules, null, false);
- mixin.originalRuleset = mixins[m].originalRuleset || mixins[m];
- }
- //if (this.important) {
- // isImportant = env.isImportant;
- // env.isImportant = true;
- //}
- Array.prototype.push.apply(
- rules, mixin.eval(env, args, this.important).rules);
- //if (this.important) {
- // env.isImportant = isImportant;
- //}
- } catch (e) {
- throw { message: e.message, index: this.index, filename: this.currentFileInfo.filename, stack: e.stack };
- }
- }
- match = true;
- }
- }
- if (match) {
- if (!this.currentFileInfo || !this.currentFileInfo.reference) {
- for (i = 0; i < rules.length; i++) {
- rule = rules[i];
- if (rule.markReferenced) {
- rule.markReferenced();
- }
- }
- }
- return rules;
- }
- }
- }
- if (isOneFound) {
- throw { type: 'Runtime',
- message: 'No matching definition was found for `' +
- this.selector.toCSS().trim() + '(' +
- (args ? args.map(function (a) {
- var argValue = "";
- if (a.name) {
- argValue += a.name + ":";
- }
- if (a.value.toCSS) {
- argValue += a.value.toCSS();
- } else {
- argValue += "???";
- }
- return argValue;
- }).join(', ') : "") + ")`",
- index: this.index, filename: this.currentFileInfo.filename };
- } else {
- throw { type: 'Name',
- message: this.selector.toCSS().trim() + " is undefined",
- index: this.index, filename: this.currentFileInfo.filename };
- }
- }
-};
-
-tree.mixin.Definition = function (name, params, rules, condition, variadic) {
- this.name = name;
- this.selectors = [new(tree.Selector)([new(tree.Element)(null, name, this.index, this.currentFileInfo)])];
- this.params = params;
- this.condition = condition;
- this.variadic = variadic;
- this.arity = params.length;
- this.rules = rules;
- this._lookups = {};
- this.required = params.reduce(function (count, p) {
- if (!p.name || (p.name && !p.value)) { return count + 1; }
- else { return count; }
- }, 0);
- this.parent = tree.Ruleset.prototype;
- this.frames = [];
-};
-tree.mixin.Definition.prototype = {
- type: "MixinDefinition",
- accept: function (visitor) {
- this.params = visitor.visit(this.params);
- this.rules = visitor.visit(this.rules);
- this.condition = visitor.visit(this.condition);
- },
- variable: function (name) { return this.parent.variable.call(this, name); },
- variables: function () { return this.parent.variables.call(this); },
- find: function () { return this.parent.find.apply(this, arguments); },
- rulesets: function () { return this.parent.rulesets.apply(this); },
-
- evalParams: function (env, mixinEnv, args, evaldArguments) {
- /*jshint boss:true */
- var frame = new(tree.Ruleset)(null, []),
- varargs, arg,
- params = this.params.slice(0),
- i, j, val, name, isNamedFound, argIndex;
-
- mixinEnv = new tree.evalEnv(mixinEnv, [frame].concat(mixinEnv.frames));
-
- if (args) {
- args = args.slice(0);
-
- for(i = 0; i < args.length; i++) {
- arg = args[i];
- if (name = (arg && arg.name)) {
- isNamedFound = false;
- for(j = 0; j < params.length; j++) {
- if (!evaldArguments[j] && name === params[j].name) {
- evaldArguments[j] = arg.value.eval(env);
- frame.rules.unshift(new(tree.Rule)(name, arg.value.eval(env)));
- isNamedFound = true;
- break;
- }
- }
- if (isNamedFound) {
- args.splice(i, 1);
- i--;
- continue;
- } else {
- throw { type: 'Runtime', message: "Named argument for " + this.name +
- ' ' + args[i].name + ' not found' };
- }
- }
- }
- }
- argIndex = 0;
- for (i = 0; i < params.length; i++) {
- if (evaldArguments[i]) { continue; }
-
- arg = args && args[argIndex];
-
- if (name = params[i].name) {
- if (params[i].variadic && args) {
- varargs = [];
- for (j = argIndex; j < args.length; j++) {
- varargs.push(args[j].value.eval(env));
- }
- frame.rules.unshift(new(tree.Rule)(name, new(tree.Expression)(varargs).eval(env)));
- } else {
- val = arg && arg.value;
- if (val) {
- val = val.eval(env);
- } else if (params[i].value) {
- val = params[i].value.eval(mixinEnv);
- frame.resetCache();
- } else {
- throw { type: 'Runtime', message: "wrong number of arguments for " + this.name +
- ' (' + args.length + ' for ' + this.arity + ')' };
- }
-
- frame.rules.unshift(new(tree.Rule)(name, val));
- evaldArguments[i] = val;
- }
- }
-
- if (params[i].variadic && args) {
- for (j = argIndex; j < args.length; j++) {
- evaldArguments[j] = args[j].value.eval(env);
- }
- }
- argIndex++;
- }
-
- return frame;
- },
- eval: function (env, args, important) {
- var _arguments = [],
- mixinFrames = this.frames.concat(env.frames),
- frame = this.evalParams(env, new(tree.evalEnv)(env, mixinFrames), args, _arguments),
- rules, ruleset;
-
- frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env)));
-
- rules = this.rules.slice(0);
-
- ruleset = new(tree.Ruleset)(null, rules);
- ruleset.originalRuleset = this;
- ruleset = ruleset.eval(new(tree.evalEnv)(env, [this, frame].concat(mixinFrames)));
- if (important) {
- ruleset = this.parent.makeImportant.apply(ruleset);
- }
- return ruleset;
- },
- matchCondition: function (args, env) {
- if (this.condition && !this.condition.eval(
- new(tree.evalEnv)(env,
- [this.evalParams(env, new(tree.evalEnv)(env, this.frames.concat(env.frames)), args, [])] // the parameter variables
- .concat(this.frames) // the parent namespace/mixin frames
- .concat(env.frames)))) { // the current environment frames
- return false;
- }
- return true;
- },
- matchArgs: function (args, env) {
- var argsLength = (args && args.length) || 0, len;
-
- if (! this.variadic) {
- if (argsLength < this.required) { return false; }
- if (argsLength > this.params.length) { return false; }
- } else {
- if (argsLength < (this.required - 1)) { return false; }
- }
-
- len = Math.min(argsLength, this.arity);
-
- for (var i = 0; i < len; i++) {
- if (!this.params[i].name && !this.params[i].variadic) {
- if (args[i].value.eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) {
- return false;
- }
- }
- }
- return true;
- }
-};
-
-})(require('../tree'));
-
-(function (tree) {
-
-tree.Negative = function (node) {
- this.value = node;
-};
-tree.Negative.prototype = {
- type: "Negative",
- accept: function (visitor) {
- this.value = visitor.visit(this.value);
- },
- genCSS: function (env, output) {
- output.add('-');
- this.value.genCSS(env, output);
- },
- toCSS: tree.toCSS,
- eval: function (env) {
- if (env.isMathOn()) {
- return (new(tree.Operation)('*', [new(tree.Dimension)(-1), this.value])).eval(env);
- }
- return new(tree.Negative)(this.value.eval(env));
- }
-};
-
-})(require('../tree'));
-
-(function (tree) {
-
-tree.Operation = function (op, operands, isSpaced) {
- this.op = op.trim();
- this.operands = operands;
- this.isSpaced = isSpaced;
-};
-tree.Operation.prototype = {
- type: "Operation",
- accept: function (visitor) {
- this.operands = visitor.visit(this.operands);
- },
- eval: function (env) {
- var a = this.operands[0].eval(env),
- b = this.operands[1].eval(env),
- temp;
-
- if (env.isMathOn()) {
- if (a instanceof tree.Dimension && b instanceof tree.Color) {
- if (this.op === '*' || this.op === '+') {
- temp = b, b = a, a = temp;
- } else {
- throw { type: "Operation",
- message: "Can't substract or divide a color from a number" };
- }
- }
- if (!a.operate) {
- throw { type: "Operation",
- message: "Operation on an invalid type" };
- }
-
- return a.operate(env, this.op, b);
- } else {
- return new(tree.Operation)(this.op, [a, b], this.isSpaced);
- }
- },
- genCSS: function (env, output) {
- this.operands[0].genCSS(env, output);
- if (this.isSpaced) {
- output.add(" ");
- }
- output.add(this.op);
- if (this.isSpaced) {
- output.add(" ");
- }
- this.operands[1].genCSS(env, output);
- },
- toCSS: tree.toCSS
-};
-
-tree.operate = function (env, op, a, b) {
- switch (op) {
- case '+': return a + b;
- case '-': return a - b;
- case '*': return a * b;
- case '/': return a / b;
- }
-};
-
-})(require('../tree'));
-
-
-(function (tree) {
-
-tree.Paren = function (node) {
- this.value = node;
-};
-tree.Paren.prototype = {
- type: "Paren",
- accept: function (visitor) {
- this.value = visitor.visit(this.value);
- },
- genCSS: function (env, output) {
- output.add('(');
- this.value.genCSS(env, output);
- output.add(')');
- },
- toCSS: tree.toCSS,
- eval: function (env) {
- return new(tree.Paren)(this.value.eval(env));
- }
-};
-
-})(require('../tree'));
-
-(function (tree) {
-
-tree.Quoted = function (str, content, escaped, index, currentFileInfo) {
- this.escaped = escaped;
- this.value = content || '';
- this.quote = str.charAt(0);
- this.index = index;
- this.currentFileInfo = currentFileInfo;
-};
-tree.Quoted.prototype = {
- type: "Quoted",
- genCSS: function (env, output) {
- if (!this.escaped) {
- output.add(this.quote, this.currentFileInfo, this.index);
- }
- output.add(this.value);
- if (!this.escaped) {
- output.add(this.quote);
- }
- },
- toCSS: tree.toCSS,
- eval: function (env) {
- var that = this;
- var value = this.value.replace(/`([^`]+)`/g, function (_, exp) {
- return new(tree.JavaScript)(exp, that.index, true).eval(env).value;
- }).replace(/@\{([\w-]+)\}/g, function (_, name) {
- var v = new(tree.Variable)('@' + name, that.index, that.currentFileInfo).eval(env, true);
- return (v instanceof tree.Quoted) ? v.value : v.toCSS();
- });
- return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index, this.currentFileInfo);
- },
- compare: function (x) {
- if (!x.toCSS) {
- return -1;
- }
-
- var left = this.toCSS(),
- right = x.toCSS();
-
- if (left === right) {
- return 0;
- }
-
- return left < right ? -1 : 1;
- }
-};
-
-})(require('../tree'));
-
-(function (tree) {
-
-tree.Rule = function (name, value, important, merge, index, currentFileInfo, inline) {
- this.name = name;
- this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]);
- this.important = important ? ' ' + important.trim() : '';
- this.merge = merge;
- this.index = index;
- this.currentFileInfo = currentFileInfo;
- this.inline = inline || false;
- this.variable = (name.charAt(0) === '@');
-};
-
-tree.Rule.prototype = {
- type: "Rule",
- accept: function (visitor) {
- this.value = visitor.visit(this.value);
- },
- genCSS: function (env, output) {
- output.add(this.name + (env.compress ? ':' : ': '), this.currentFileInfo, this.index);
- try {
- this.value.genCSS(env, output);
- }
- catch(e) {
- e.index = this.index;
- e.filename = this.currentFileInfo.filename;
- throw e;
- }
- output.add(this.important + ((this.inline || (env.lastRule && env.compress)) ? "" : ";"), this.currentFileInfo, this.index);
- },
- toCSS: tree.toCSS,
- eval: function (env) {
- var strictMathBypass = false;
- if (this.name === "font" && !env.strictMath) {
- strictMathBypass = true;
- env.strictMath = true;
- }
- try {
- return new(tree.Rule)(this.name,
- this.value.eval(env),
- this.important,
- this.merge,
- this.index, this.currentFileInfo, this.inline);
- }
- finally {
- if (strictMathBypass) {
- env.strictMath = false;
- }
- }
- },
- makeImportant: function () {
- return new(tree.Rule)(this.name,
- this.value,
- "!important",
- this.merge,
- this.index, this.currentFileInfo, this.inline);
- }
-};
-
-})(require('../tree'));
-
-(function (tree) {
-
-tree.Ruleset = function (selectors, rules, strictImports) {
- this.selectors = selectors;
- this.rules = rules;
- this._lookups = {};
- this.strictImports = strictImports;
-};
-tree.Ruleset.prototype = {
- type: "Ruleset",
- accept: function (visitor) {
- if (this.paths) {
- for(var i = 0; i < this.paths.length; i++) {
- this.paths[i] = visitor.visit(this.paths[i]);
- }
- } else {
- this.selectors = visitor.visit(this.selectors);
- }
- this.rules = visitor.visit(this.rules);
- },
- eval: function (env) {
- var selectors = this.selectors && this.selectors.map(function (s) { return s.eval(env); });
- var ruleset = new(tree.Ruleset)(selectors, this.rules.slice(0), this.strictImports);
- var rules;
- var rule;
- var i;
-
- ruleset.originalRuleset = this;
- ruleset.root = this.root;
- ruleset.firstRoot = this.firstRoot;
- ruleset.allowImports = this.allowImports;
-
- if(this.debugInfo) {
- ruleset.debugInfo = this.debugInfo;
- }
-
- // push the current ruleset to the frames stack
- env.frames.unshift(ruleset);
-
- // currrent selectors
- if (!env.selectors) {
- env.selectors = [];
- }
- env.selectors.unshift(this.selectors);
-
- // Evaluate imports
- if (ruleset.root || ruleset.allowImports || !ruleset.strictImports) {
- ruleset.evalImports(env);
- }
-
- // Store the frames around mixin definitions,
- // so they can be evaluated like closures when the time comes.
- for (i = 0; i < ruleset.rules.length; i++) {
- if (ruleset.rules[i] instanceof tree.mixin.Definition) {
- ruleset.rules[i].frames = env.frames.slice(0);
- }
- }
-
- var mediaBlockCount = (env.mediaBlocks && env.mediaBlocks.length) || 0;
-
- // Evaluate mixin calls.
- for (i = 0; i < ruleset.rules.length; i++) {
- if (ruleset.rules[i] instanceof tree.mixin.Call) {
- /*jshint loopfunc:true */
- rules = ruleset.rules[i].eval(env).filter(function(r) {
- if ((r instanceof tree.Rule) && r.variable) {
- // do not pollute the scope if the variable is
- // already there. consider returning false here
- // but we need a way to "return" variable from mixins
- return !(ruleset.variable(r.name));
- }
- return true;
- });
- ruleset.rules.splice.apply(ruleset.rules, [i, 1].concat(rules));
- i += rules.length-1;
- ruleset.resetCache();
- }
- }
-
- // Evaluate everything else
- for (i = 0; i < ruleset.rules.length; i++) {
- rule = ruleset.rules[i];
-
- if (! (rule instanceof tree.mixin.Definition)) {
- ruleset.rules[i] = rule.eval ? rule.eval(env) : rule;
- }
- }
-
- // Pop the stack
- env.frames.shift();
- env.selectors.shift();
-
- if (env.mediaBlocks) {
- for (i = mediaBlockCount; i < env.mediaBlocks.length; i++) {
- env.mediaBlocks[i].bubbleSelectors(selectors);
- }
- }
-
- return ruleset;
- },
- evalImports: function(env) {
- var i, rules;
- for (i = 0; i < this.rules.length; i++) {
- if (this.rules[i] instanceof tree.Import) {
- rules = this.rules[i].eval(env);
- if (typeof rules.length === "number") {
- this.rules.splice.apply(this.rules, [i, 1].concat(rules));
- i+= rules.length-1;
- } else {
- this.rules.splice(i, 1, rules);
- }
- this.resetCache();
- }
- }
- },
- makeImportant: function() {
- return new tree.Ruleset(this.selectors, this.rules.map(function (r) {
- if (r.makeImportant) {
- return r.makeImportant();
- } else {
- return r;
- }
- }), this.strictImports);
- },
- matchArgs: function (args) {
- return !args || args.length === 0;
- },
- matchCondition: function (args, env) {
- var lastSelector = this.selectors[this.selectors.length-1];
- if (lastSelector.condition &&
- !lastSelector.condition.eval(
- new(tree.evalEnv)(env,
- env.frames))) {
- return false;
- }
- return true;
- },
- resetCache: function () {
- this._rulesets = null;
- this._variables = null;
- this._lookups = {};
- },
- variables: function () {
- if (this._variables) { return this._variables; }
- else {
- return this._variables = this.rules.reduce(function (hash, r) {
- if (r instanceof tree.Rule && r.variable === true) {
- hash[r.name] = r;
- }
- return hash;
- }, {});
- }
- },
- variable: function (name) {
- return this.variables()[name];
- },
- rulesets: function () {
- return this.rules.filter(function (r) {
- return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition);
- });
- },
- find: function (selector, self) {
- self = self || this;
- var rules = [], match,
- key = selector.toCSS();
-
- if (key in this._lookups) { return this._lookups[key]; }
-
- this.rulesets().forEach(function (rule) {
- if (rule !== self) {
- for (var j = 0; j < rule.selectors.length; j++) {
- if (match = selector.match(rule.selectors[j])) {
- if (selector.elements.length > match) {
- Array.prototype.push.apply(rules, rule.find(
- new(tree.Selector)(selector.elements.slice(match)), self));
- } else {
- rules.push(rule);
- }
- break;
- }
- }
- }
- });
- return this._lookups[key] = rules;
- },
- genCSS: function (env, output) {
- var i, j,
- ruleNodes = [],
- rulesetNodes = [],
- debugInfo, // Line number debugging
- rule,
- firstRuleset = true,
- path;
-
- env.tabLevel = (env.tabLevel || 0);
-
- if (!this.root) {
- env.tabLevel++;
- }
-
- var tabRuleStr = env.compress ? '' : Array(env.tabLevel + 1).join(" "),
- tabSetStr = env.compress ? '' : Array(env.tabLevel).join(" ");
-
- for (i = 0; i < this.rules.length; i++) {
- rule = this.rules[i];
- if (rule.rules || (rule instanceof tree.Media) || rule instanceof tree.Directive || (this.root && rule instanceof tree.Comment)) {
- rulesetNodes.push(rule);
- } else {
- ruleNodes.push(rule);
- }
- }
-
- // If this is the root node, we don't render
- // a selector, or {}.
- if (!this.root) {
- debugInfo = tree.debugInfo(env, this, tabSetStr);
-
- if (debugInfo) {
- output.add(debugInfo);
- output.add(tabSetStr);
- }
-
- for(i = 0; i < this.paths.length; i++) {
- path = this.paths[i];
- env.firstSelector = true;
- for(j = 0; j < path.length; j++) {
- path[j].genCSS(env, output);
- env.firstSelector = false;
- }
- if (i + 1 < this.paths.length) {
- output.add(env.compress ? ',' : (',\n' + tabSetStr));
- }
- }
-
- output.add((env.compress ? '{' : ' {\n') + tabRuleStr);
- }
-
- // Compile rules and rulesets
- for (i = 0; i < ruleNodes.length; i++) {
- rule = ruleNodes[i];
-
- // @page{ directive ends up with root elements inside it, a mix of rules and rulesets
- // In this instance we do not know whether it is the last property
- if (i + 1 === ruleNodes.length && (!this.root || rulesetNodes.length === 0 || this.firstRoot)) {
- env.lastRule = true;
- }
-
- if (rule.genCSS) {
- rule.genCSS(env, output);
- } else if (rule.value) {
- output.add(rule.value.toString());
- }
-
- if (!env.lastRule) {
- output.add(env.compress ? '' : ('\n' + tabRuleStr));
- } else {
- env.lastRule = false;
- }
- }
-
- if (!this.root) {
- output.add((env.compress ? '}' : '\n' + tabSetStr + '}'));
- env.tabLevel--;
- }
-
- for (i = 0; i < rulesetNodes.length; i++) {
- if (ruleNodes.length && firstRuleset) {
- output.add((env.compress ? "" : "\n") + (this.root ? tabRuleStr : tabSetStr));
- }
- if (!firstRuleset) {
- output.add((env.compress ? "" : "\n") + (this.root ? tabRuleStr : tabSetStr));
- }
- firstRuleset = false;
- rulesetNodes[i].genCSS(env, output);
- }
-
- if (!output.isEmpty() && !env.compress && this.firstRoot) {
- output.add('\n');
- }
- },
-
- toCSS: tree.toCSS,
-
- markReferenced: function () {
- for (var s = 0; s < this.selectors.length; s++) {
- this.selectors[s].markReferenced();
- }
- },
-
- joinSelectors: function (paths, context, selectors) {
- for (var s = 0; s < selectors.length; s++) {
- this.joinSelector(paths, context, selectors[s]);
- }
- },
-
- joinSelector: function (paths, context, selector) {
-
- var i, j, k,
- hasParentSelector, newSelectors, el, sel, parentSel,
- newSelectorPath, afterParentJoin, newJoinedSelector,
- newJoinedSelectorEmpty, lastSelector, currentElements,
- selectorsMultiplied;
-
- for (i = 0; i < selector.elements.length; i++) {
- el = selector.elements[i];
- if (el.value === '&') {
- hasParentSelector = true;
- }
- }
-
- if (!hasParentSelector) {
- if (context.length > 0) {
- for (i = 0; i < context.length; i++) {
- paths.push(context[i].concat(selector));
- }
- }
- else {
- paths.push([selector]);
- }
- return;
- }
-
- // The paths are [[Selector]]
- // The first list is a list of comma seperated selectors
- // The inner list is a list of inheritance seperated selectors
- // e.g.
- // .a, .b {
- // .c {
- // }
- // }
- // == [[.a] [.c]] [[.b] [.c]]
- //
-
- // the elements from the current selector so far
- currentElements = [];
- // the current list of new selectors to add to the path.
- // We will build it up. We initiate it with one empty selector as we "multiply" the new selectors
- // by the parents
- newSelectors = [[]];
-
- for (i = 0; i < selector.elements.length; i++) {
- el = selector.elements[i];
- // non parent reference elements just get added
- if (el.value !== "&") {
- currentElements.push(el);
- } else {
- // the new list of selectors to add
- selectorsMultiplied = [];
-
- // merge the current list of non parent selector elements
- // on to the current list of selectors to add
- if (currentElements.length > 0) {
- this.mergeElementsOnToSelectors(currentElements, newSelectors);
- }
-
- // loop through our current selectors
- for (j = 0; j < newSelectors.length; j++) {
- sel = newSelectors[j];
- // if we don't have any parent paths, the & might be in a mixin so that it can be used
- // whether there are parents or not
- if (context.length === 0) {
- // the combinator used on el should now be applied to the next element instead so that
- // it is not lost
- if (sel.length > 0) {
- sel[0].elements = sel[0].elements.slice(0);
- sel[0].elements.push(new(tree.Element)(el.combinator, '', 0, el.index, el.currentFileInfo));
- }
- selectorsMultiplied.push(sel);
- }
- else {
- // and the parent selectors
- for (k = 0; k < context.length; k++) {
- parentSel = context[k];
- // We need to put the current selectors
- // then join the last selector's elements on to the parents selectors
-
- // our new selector path
- newSelectorPath = [];
- // selectors from the parent after the join
- afterParentJoin = [];
- newJoinedSelectorEmpty = true;
-
- //construct the joined selector - if & is the first thing this will be empty,
- // if not newJoinedSelector will be the last set of elements in the selector
- if (sel.length > 0) {
- newSelectorPath = sel.slice(0);
- lastSelector = newSelectorPath.pop();
- newJoinedSelector = selector.createDerived(lastSelector.elements.slice(0));
- newJoinedSelectorEmpty = false;
- }
- else {
- newJoinedSelector = selector.createDerived([]);
- }
-
- //put together the parent selectors after the join
- if (parentSel.length > 1) {
- afterParentJoin = afterParentJoin.concat(parentSel.slice(1));
- }
-
- if (parentSel.length > 0) {
- newJoinedSelectorEmpty = false;
-
- // join the elements so far with the first part of the parent
- newJoinedSelector.elements.push(new(tree.Element)(el.combinator, parentSel[0].elements[0].value, el.index, el.currentFileInfo));
- newJoinedSelector.elements = newJoinedSelector.elements.concat(parentSel[0].elements.slice(1));
- }
-
- if (!newJoinedSelectorEmpty) {
- // now add the joined selector
- newSelectorPath.push(newJoinedSelector);
- }
-
- // and the rest of the parent
- newSelectorPath = newSelectorPath.concat(afterParentJoin);
-
- // add that to our new set of selectors
- selectorsMultiplied.push(newSelectorPath);
- }
- }
- }
-
- // our new selectors has been multiplied, so reset the state
- newSelectors = selectorsMultiplied;
- currentElements = [];
- }
- }
-
- // if we have any elements left over (e.g. .a& .b == .b)
- // add them on to all the current selectors
- if (currentElements.length > 0) {
- this.mergeElementsOnToSelectors(currentElements, newSelectors);
- }
-
- for (i = 0; i < newSelectors.length; i++) {
- if (newSelectors[i].length > 0) {
- paths.push(newSelectors[i]);
- }
- }
- },
-
- mergeElementsOnToSelectors: function(elements, selectors) {
- var i, sel;
-
- if (selectors.length === 0) {
- selectors.push([ new(tree.Selector)(elements) ]);
- return;
- }
-
- for (i = 0; i < selectors.length; i++) {
- sel = selectors[i];
-
- // if the previous thing in sel is a parent this needs to join on to it
- if (sel.length > 0) {
- sel[sel.length - 1] = sel[sel.length - 1].createDerived(sel[sel.length - 1].elements.concat(elements));
- }
- else {
- sel.push(new(tree.Selector)(elements));
- }
- }
- }
-};
-})(require('../tree'));
-
-(function (tree) {
-
-tree.Selector = function (elements, extendList, condition, index, currentFileInfo, isReferenced) {
- this.elements = elements;
- this.extendList = extendList || [];
- this.condition = condition;
- this.currentFileInfo = currentFileInfo || {};
- this.isReferenced = isReferenced;
- if (!condition) {
- this.evaldCondition = true;
- }
-};
-tree.Selector.prototype = {
- type: "Selector",
- accept: function (visitor) {
- this.elements = visitor.visit(this.elements);
- this.extendList = visitor.visit(this.extendList);
- this.condition = visitor.visit(this.condition);
- },
- createDerived: function(elements, extendList, evaldCondition) {
- /*jshint eqnull:true */
- evaldCondition = evaldCondition != null ? evaldCondition : this.evaldCondition;
- var newSelector = new(tree.Selector)(elements, extendList || this.extendList, this.condition, this.index, this.currentFileInfo, this.isReferenced);
- newSelector.evaldCondition = evaldCondition;
- return newSelector;
- },
- match: function (other) {
- var elements = this.elements,
- len = elements.length,
- oelements, olen, max, i;
-
- oelements = other.elements.slice(
- (other.elements.length && other.elements[0].value === "&") ? 1 : 0);
- olen = oelements.length;
- max = Math.min(len, olen);
-
- if (olen === 0 || len < olen) {
- return 0;
- } else {
- for (i = 0; i < max; i++) {
- if (elements[i].value !== oelements[i].value) {
- return 0;
- }
- }
- }
- return max; // return number of matched selectors
- },
- eval: function (env) {
- var evaldCondition = this.condition && this.condition.eval(env);
-
- return this.createDerived(this.elements.map(function (e) {
- return e.eval(env);
- }), this.extendList.map(function(extend) {
- return extend.eval(env);
- }), evaldCondition);
- },
- genCSS: function (env, output) {
- var i, element;
- if ((!env || !env.firstSelector) && this.elements[0].combinator.value === "") {
- output.add(' ', this.currentFileInfo, this.index);
- }
- if (!this._css) {
- //TODO caching? speed comparison?
- for(i = 0; i < this.elements.length; i++) {
- element = this.elements[i];
- element.genCSS(env, output);
- }
- }
- },
- toCSS: tree.toCSS,
- markReferenced: function () {
- this.isReferenced = true;
- },
- getIsReferenced: function() {
- return !this.currentFileInfo.reference || this.isReferenced;
- },
- getIsOutput: function() {
- return this.evaldCondition;
- }
-};
-
-})(require('../tree'));
-
-(function (tree) {
-
-tree.UnicodeDescriptor = function (value) {
- this.value = value;
-};
-tree.UnicodeDescriptor.prototype = {
- type: "UnicodeDescriptor",
- genCSS: function (env, output) {
- output.add(this.value);
- },
- toCSS: tree.toCSS,
- eval: function () { return this; }
-};
-
-})(require('../tree'));
-
-(function (tree) {
-
-tree.URL = function (val, currentFileInfo) {
- this.value = val;
- this.currentFileInfo = currentFileInfo;
-};
-tree.URL.prototype = {
- type: "Url",
- accept: function (visitor) {
- this.value = visitor.visit(this.value);
- },
- genCSS: function (env, output) {
- output.add("url(");
- this.value.genCSS(env, output);
- output.add(")");
- },
- toCSS: tree.toCSS,
- eval: function (ctx) {
- var val = this.value.eval(ctx), rootpath;
-
- // Add the base path if the URL is relative
- rootpath = this.currentFileInfo && this.currentFileInfo.rootpath;
- if (rootpath && typeof val.value === "string" && ctx.isPathRelative(val.value)) {
- if (!val.quote) {
- rootpath = rootpath.replace(/[\(\)'"\s]/g, function(match) { return "\\"+match; });
- }
- val.value = rootpath + val.value;
- }
-
- val.value = ctx.normalizePath(val.value);
-
- return new(tree.URL)(val, null);
- }
-};
-
-})(require('../tree'));
-
-(function (tree) {
-
-tree.Value = function (value) {
- this.value = value;
-};
-tree.Value.prototype = {
- type: "Value",
- accept: function (visitor) {
- this.value = visitor.visit(this.value);
- },
- eval: function (env) {
- if (this.value.length === 1) {
- return this.value[0].eval(env);
- } else {
- return new(tree.Value)(this.value.map(function (v) {
- return v.eval(env);
- }));
- }
- },
- genCSS: function (env, output) {
- var i;
- for(i = 0; i < this.value.length; i++) {
- this.value[i].genCSS(env, output);
- if (i+1 < this.value.length) {
- output.add((env && env.compress) ? ',' : ', ');
- }
- }
- },
- toCSS: tree.toCSS
-};
-
-})(require('../tree'));
-
-(function (tree) {
-
-tree.Variable = function (name, index, currentFileInfo) {
- this.name = name;
- this.index = index;
- this.currentFileInfo = currentFileInfo;
-};
-tree.Variable.prototype = {
- type: "Variable",
- eval: function (env) {
- var variable, v, name = this.name;
-
- if (name.indexOf('@@') === 0) {
- name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value;
- }
-
- if (this.evaluating) {
- throw { type: 'Name',
- message: "Recursive variable definition for " + name,
- filename: this.currentFileInfo.file,
- index: this.index };
- }
-
- this.evaluating = true;
-
- if (variable = tree.find(env.frames, function (frame) {
- if (v = frame.variable(name)) {
- return v.value.eval(env);
- }
- })) {
- this.evaluating = false;
- return variable;
- }
- else {
- throw { type: 'Name',
- message: "variable " + name + " is undefined",
- filename: this.currentFileInfo.filename,
- index: this.index };
- }
- }
-};
-
-})(require('../tree'));
-
-(function (tree) {
-
- var parseCopyProperties = [
- 'paths', // option - unmodified - paths to search for imports on
- 'optimization', // option - optimization level (for the chunker)
- 'files', // list of files that have been imported, used for import-once
- 'contents', // browser-only, contents of all the files
- 'relativeUrls', // option - whether to adjust URL's to be relative
- 'rootpath', // option - rootpath to append to URL's
- 'strictImports', // option -
- 'insecure', // option - whether to allow imports from insecure ssl hosts
- 'dumpLineNumbers', // option - whether to dump line numbers
- 'compress', // option - whether to compress
- 'processImports', // option - whether to process imports. if false then imports will not be imported
- 'syncImport', // option - whether to import synchronously
- 'javascriptEnabled',// option - whether JavaScript is enabled. if undefined, defaults to true
- 'mime', // browser only - mime type for sheet import
- 'useFileCache', // browser only - whether to use the per file session cache
- 'currentFileInfo' // information about the current file - for error reporting and importing and making urls relative etc.
- ];
-
- //currentFileInfo = {
- // 'relativeUrls' - option - whether to adjust URL's to be relative
- // 'filename' - full resolved filename of current file
- // 'rootpath' - path to append to normal URLs for this node
- // 'currentDirectory' - path to the current file, absolute
- // 'rootFilename' - filename of the base file
- // 'entryPath' - absolute path to the entry file
- // 'reference' - whether the file should not be output and only output parts that are referenced
-
- tree.parseEnv = function(options) {
- copyFromOriginal(options, this, parseCopyProperties);
-
- if (!this.contents) { this.contents = {}; }
- if (!this.files) { this.files = {}; }
-
- if (!this.currentFileInfo) {
- var filename = (options && options.filename) || "input";
- var entryPath = filename.replace(/[^\/\\]*$/, "");
- if (options) {
- options.filename = null;
- }
- this.currentFileInfo = {
- filename: filename,
- relativeUrls: this.relativeUrls,
- rootpath: (options && options.rootpath) || "",
- currentDirectory: entryPath,
- entryPath: entryPath,
- rootFilename: filename
- };
- }
- };
-
- var evalCopyProperties = [
- 'silent', // whether to swallow errors and warnings
- 'verbose', // whether to log more activity
- 'compress', // whether to compress
- 'yuicompress', // whether to compress with the outside tool yui compressor
- 'ieCompat', // whether to enforce IE compatibility (IE8 data-uri)
- 'strictMath', // whether math has to be within parenthesis
- 'strictUnits', // whether units need to evaluate correctly
- 'cleancss', // whether to compress with clean-css
- 'sourceMap', // whether to output a source map
- 'importMultiple'// whether we are currently importing multiple copies
- ];
-
- tree.evalEnv = function(options, frames) {
- copyFromOriginal(options, this, evalCopyProperties);
-
- this.frames = frames || [];
- };
-
- tree.evalEnv.prototype.inParenthesis = function () {
- if (!this.parensStack) {
- this.parensStack = [];
- }
- this.parensStack.push(true);
- };
-
- tree.evalEnv.prototype.outOfParenthesis = function () {
- this.parensStack.pop();
- };
-
- tree.evalEnv.prototype.isMathOn = function () {
- return this.strictMath ? (this.parensStack && this.parensStack.length) : true;
- };
-
- tree.evalEnv.prototype.isPathRelative = function (path) {
- return !/^(?:[a-z-]+:|\/)/.test(path);
- };
-
- tree.evalEnv.prototype.normalizePath = function( path ) {
- var
- segments = path.split("/").reverse(),
- segment;
-
- path = [];
- while (segments.length !== 0 ) {
- segment = segments.pop();
- switch( segment ) {
- case ".":
- break;
- case "..":
- if ((path.length === 0) || (path[path.length - 1] === "..")) {
- path.push( segment );
- } else {
- path.pop();
- }
- break;
- default:
- path.push( segment );
- break;
- }
- }
-
- return path.join("/");
- };
-
- //todo - do the same for the toCSS env
- //tree.toCSSEnv = function (options) {
- //};
-
- var copyFromOriginal = function(original, destination, propertiesToCopy) {
- if (!original) { return; }
-
- for(var i = 0; i < propertiesToCopy.length; i++) {
- if (original.hasOwnProperty(propertiesToCopy[i])) {
- destination[propertiesToCopy[i]] = original[propertiesToCopy[i]];
- }
- }
- };
-
-})(require('./tree'));
-
-(function (tree) {
-
- tree.visitor = function(implementation) {
- this._implementation = implementation;
- };
-
- tree.visitor.prototype = {
- visit: function(node) {
-
- if (node instanceof Array) {
- return this.visitArray(node);
- }
-
- if (!node || !node.type) {
- return node;
- }
-
- var funcName = "visit" + node.type,
- func = this._implementation[funcName],
- visitArgs, newNode;
- if (func) {
- visitArgs = {visitDeeper: true};
- newNode = func.call(this._implementation, node, visitArgs);
- if (this._implementation.isReplacing) {
- node = newNode;
- }
- }
- if ((!visitArgs || visitArgs.visitDeeper) && node && node.accept) {
- node.accept(this);
- }
- funcName = funcName + "Out";
- if (this._implementation[funcName]) {
- this._implementation[funcName](node);
- }
- return node;
- },
- visitArray: function(nodes) {
- var i, newNodes = [];
- for(i = 0; i < nodes.length; i++) {
- var evald = this.visit(nodes[i]);
- if (evald instanceof Array) {
- evald = this.flatten(evald);
- newNodes = newNodes.concat(evald);
- } else {
- newNodes.push(evald);
- }
- }
- if (this._implementation.isReplacing) {
- return newNodes;
- }
- return nodes;
- },
- doAccept: function (node) {
- node.accept(this);
- },
- flatten: function(arr, master) {
- return arr.reduce(this.flattenReduce.bind(this), master || []);
- },
- flattenReduce: function(sum, element) {
- if (element instanceof Array) {
- sum = this.flatten(element, sum);
- } else {
- sum.push(element);
- }
- return sum;
- }
- };
-
-})(require('./tree'));
-(function (tree) {
- tree.importVisitor = function(importer, finish, evalEnv) {
- this._visitor = new tree.visitor(this);
- this._importer = importer;
- this._finish = finish;
- this.env = evalEnv || new tree.evalEnv();
- this.importCount = 0;
- };
-
- tree.importVisitor.prototype = {
- isReplacing: true,
- run: function (root) {
- var error;
- try {
- // process the contents
- this._visitor.visit(root);
- }
- catch(e) {
- error = e;
- }
-
- this.isFinished = true;
-
- if (this.importCount === 0) {
- this._finish(error);
- }
- },
- visitImport: function (importNode, visitArgs) {
- var importVisitor = this,
- evaldImportNode,
- inlineCSS = importNode.options.inline;
-
- if (!importNode.css || inlineCSS) {
-
- try {
- evaldImportNode = importNode.evalForImport(this.env);
- } catch(e){
- if (!e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; }
- // attempt to eval properly and treat as css
- importNode.css = true;
- // if that fails, this error will be thrown
- importNode.error = e;
- }
-
- if (evaldImportNode && (!evaldImportNode.css || inlineCSS)) {
- importNode = evaldImportNode;
- this.importCount++;
- var env = new tree.evalEnv(this.env, this.env.frames.slice(0));
-
- if (importNode.options.multiple) {
- env.importMultiple = true;
- }
-
- this._importer.push(importNode.getPath(), importNode.currentFileInfo, importNode.options, function (e, root, imported, fullPath) {
- if (e && !e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; }
-
- if (imported && !env.importMultiple) { importNode.skip = imported; }
-
- var subFinish = function(e) {
- importVisitor.importCount--;
-
- if (importVisitor.importCount === 0 && importVisitor.isFinished) {
- importVisitor._finish(e);
- }
- };
-
- if (root) {
- importNode.root = root;
- importNode.importedFilename = fullPath;
- if (!inlineCSS && !importNode.skip) {
- new(tree.importVisitor)(importVisitor._importer, subFinish, env)
- .run(root);
- return;
- }
- }
-
- subFinish();
- });
- }
- }
- visitArgs.visitDeeper = false;
- return importNode;
- },
- visitRule: function (ruleNode, visitArgs) {
- visitArgs.visitDeeper = false;
- return ruleNode;
- },
- visitDirective: function (directiveNode, visitArgs) {
- this.env.frames.unshift(directiveNode);
- return directiveNode;
- },
- visitDirectiveOut: function (directiveNode) {
- this.env.frames.shift();
- },
- visitMixinDefinition: function (mixinDefinitionNode, visitArgs) {
- this.env.frames.unshift(mixinDefinitionNode);
- return mixinDefinitionNode;
- },
- visitMixinDefinitionOut: function (mixinDefinitionNode) {
- this.env.frames.shift();
- },
- visitRuleset: function (rulesetNode, visitArgs) {
- this.env.frames.unshift(rulesetNode);
- return rulesetNode;
- },
- visitRulesetOut: function (rulesetNode) {
- this.env.frames.shift();
- },
- visitMedia: function (mediaNode, visitArgs) {
- this.env.frames.unshift(mediaNode.ruleset);
- return mediaNode;
- },
- visitMediaOut: function (mediaNode) {
- this.env.frames.shift();
- }
- };
-
-})(require('./tree'));
-(function (tree) {
- tree.joinSelectorVisitor = function() {
- this.contexts = [[]];
- this._visitor = new tree.visitor(this);
- };
-
- tree.joinSelectorVisitor.prototype = {
- run: function (root) {
- return this._visitor.visit(root);
- },
- visitRule: function (ruleNode, visitArgs) {
- visitArgs.visitDeeper = false;
- },
- visitMixinDefinition: function (mixinDefinitionNode, visitArgs) {
- visitArgs.visitDeeper = false;
- },
-
- visitRuleset: function (rulesetNode, visitArgs) {
- var context = this.contexts[this.contexts.length - 1];
- var paths = [];
- this.contexts.push(paths);
-
- if (! rulesetNode.root) {
- rulesetNode.selectors = rulesetNode.selectors.filter(function(selector) { return selector.getIsOutput(); });
- if (rulesetNode.selectors.length === 0) {
- rulesetNode.rules.length = 0;
- }
- rulesetNode.joinSelectors(paths, context, rulesetNode.selectors);
- rulesetNode.paths = paths;
- }
- },
- visitRulesetOut: function (rulesetNode) {
- this.contexts.length = this.contexts.length - 1;
- },
- visitMedia: function (mediaNode, visitArgs) {
- var context = this.contexts[this.contexts.length - 1];
- mediaNode.rules[0].root = (context.length === 0 || context[0].multiMedia);
- }
- };
-
-})(require('./tree'));
-(function (tree) {
- tree.toCSSVisitor = function(env) {
- this._visitor = new tree.visitor(this);
- this._env = env;
- };
-
- tree.toCSSVisitor.prototype = {
- isReplacing: true,
- run: function (root) {
- return this._visitor.visit(root);
- },
-
- visitRule: function (ruleNode, visitArgs) {
- if (ruleNode.variable) {
- return [];
- }
- return ruleNode;
- },
-
- visitMixinDefinition: function (mixinNode, visitArgs) {
- return [];
- },
-
- visitExtend: function (extendNode, visitArgs) {
- return [];
- },
-
- visitComment: function (commentNode, visitArgs) {
- if (commentNode.isSilent(this._env)) {
- return [];
- }
- return commentNode;
- },
-
- visitMedia: function(mediaNode, visitArgs) {
- mediaNode.accept(this._visitor);
- visitArgs.visitDeeper = false;
-
- if (!mediaNode.rules.length) {
- return [];
- }
- return mediaNode;
- },
-
- visitDirective: function(directiveNode, visitArgs) {
- if (directiveNode.currentFileInfo.reference && !directiveNode.isReferenced) {
- return [];
- }
- if (directiveNode.name === "@charset") {
- // Only output the debug info together with subsequent @charset definitions
- // a comment (or @media statement) before the actual @charset directive would
- // be considered illegal css as it has to be on the first line
- if (this.charset) {
- if (directiveNode.debugInfo) {
- var comment = new tree.Comment("/* " + directiveNode.toCSS(this._env).replace(/\n/g, "")+" */\n");
- comment.debugInfo = directiveNode.debugInfo;
- return this._visitor.visit(comment);
- }
- return [];
- }
- this.charset = true;
- }
- return directiveNode;
- },
-
- checkPropertiesInRoot: function(rules) {
- var ruleNode;
- for(var i = 0; i < rules.length; i++) {
- ruleNode = rules[i];
- if (ruleNode instanceof tree.Rule && !ruleNode.variable) {
- throw { message: "properties must be inside selector blocks, they cannot be in the root.",
- index: ruleNode.index, filename: ruleNode.currentFileInfo ? ruleNode.currentFileInfo.filename : null};
- }
- }
- },
-
- visitRuleset: function (rulesetNode, visitArgs) {
- var rule, rulesets = [];
- if (rulesetNode.firstRoot) {
- this.checkPropertiesInRoot(rulesetNode.rules);
- }
- if (! rulesetNode.root) {
-
- rulesetNode.paths = rulesetNode.paths
- .filter(function(p) {
- var i;
- if (p[0].elements[0].combinator.value === ' ') {
- p[0].elements[0].combinator = new(tree.Combinator)('');
- }
- for(i = 0; i < p.length; i++) {
- if (p[i].getIsReferenced() && p[i].getIsOutput()) {
- return true;
- }
- return false;
- }
- });
-
- // Compile rules and rulesets
- for (var i = 0; i < rulesetNode.rules.length; i++) {
- rule = rulesetNode.rules[i];
-
- if (rule.rules) {
- // visit because we are moving them out from being a child
- rulesets.push(this._visitor.visit(rule));
- rulesetNode.rules.splice(i, 1);
- i--;
- continue;
- }
- }
- // accept the visitor to remove rules and refactor itself
- // then we can decide now whether we want it or not
- if (rulesetNode.rules.length > 0) {
- rulesetNode.accept(this._visitor);
- }
- visitArgs.visitDeeper = false;
-
- this._mergeRules(rulesetNode.rules);
- this._removeDuplicateRules(rulesetNode.rules);
-
- // now decide whether we keep the ruleset
- if (rulesetNode.rules.length > 0 && rulesetNode.paths.length > 0) {
- rulesets.splice(0, 0, rulesetNode);
- }
- } else {
- rulesetNode.accept(this._visitor);
- visitArgs.visitDeeper = false;
- if (rulesetNode.firstRoot || rulesetNode.rules.length > 0) {
- rulesets.splice(0, 0, rulesetNode);
- }
- }
- if (rulesets.length === 1) {
- return rulesets[0];
- }
- return rulesets;
- },
-
- _removeDuplicateRules: function(rules) {
- // remove duplicates
- var ruleCache = {},
- ruleList, rule, i;
- for(i = rules.length - 1; i >= 0 ; i--) {
- rule = rules[i];
- if (rule instanceof tree.Rule) {
- if (!ruleCache[rule.name]) {
- ruleCache[rule.name] = rule;
- } else {
- ruleList = ruleCache[rule.name];
- if (ruleList instanceof tree.Rule) {
- ruleList = ruleCache[rule.name] = [ruleCache[rule.name].toCSS(this._env)];
- }
- var ruleCSS = rule.toCSS(this._env);
- if (ruleList.indexOf(ruleCSS) !== -1) {
- rules.splice(i, 1);
- } else {
- ruleList.push(ruleCSS);
- }
- }
- }
- }
- },
-
- _mergeRules: function (rules) {
- var groups = {},
- parts,
- rule,
- key;
-
- for (var i = 0; i < rules.length; i++) {
- rule = rules[i];
-
- if ((rule instanceof tree.Rule) && rule.merge) {
- key = [rule.name,
- rule.important ? "!" : ""].join(",");
-
- if (!groups[key]) {
- parts = groups[key] = [];
- } else {
- rules.splice(i--, 1);
- }
-
- parts.push(rule);
- }
- }
-
- Object.keys(groups).map(function (k) {
- parts = groups[k];
-
- if (parts.length > 1) {
- rule = parts[0];
-
- rule.value = new (tree.Value)(parts.map(function (p) {
- return p.value;
- }));
- }
- });
- }
- };
-
-})(require('./tree'));
-(function (tree) {
- /*jshint loopfunc:true */
-
- tree.extendFinderVisitor = function() {
- this._visitor = new tree.visitor(this);
- this.contexts = [];
- this.allExtendsStack = [[]];
- };
-
- tree.extendFinderVisitor.prototype = {
- run: function (root) {
- root = this._visitor.visit(root);
- root.allExtends = this.allExtendsStack[0];
- return root;
- },
- visitRule: function (ruleNode, visitArgs) {
- visitArgs.visitDeeper = false;
- },
- visitMixinDefinition: function (mixinDefinitionNode, visitArgs) {
- visitArgs.visitDeeper = false;
- },
- visitRuleset: function (rulesetNode, visitArgs) {
-
- if (rulesetNode.root) {
- return;
- }
-
- var i, j, extend, allSelectorsExtendList = [], extendList;
-
- // get &:extend(.a); rules which apply to all selectors in this ruleset
- for(i = 0; i < rulesetNode.rules.length; i++) {
- if (rulesetNode.rules[i] instanceof tree.Extend) {
- allSelectorsExtendList.push(rulesetNode.rules[i]);
- rulesetNode.extendOnEveryPath = true;
- }
- }
-
- // now find every selector and apply the extends that apply to all extends
- // and the ones which apply to an individual extend
- for(i = 0; i < rulesetNode.paths.length; i++) {
- var selectorPath = rulesetNode.paths[i],
- selector = selectorPath[selectorPath.length-1];
- extendList = selector.extendList.slice(0).concat(allSelectorsExtendList).map(function(allSelectorsExtend) {
- return allSelectorsExtend.clone();
- });
- for(j = 0; j < extendList.length; j++) {
- this.foundExtends = true;
- extend = extendList[j];
- extend.findSelfSelectors(selectorPath);
- extend.ruleset = rulesetNode;
- if (j === 0) { extend.firstExtendOnThisSelectorPath = true; }
- this.allExtendsStack[this.allExtendsStack.length-1].push(extend);
- }
- }
-
- this.contexts.push(rulesetNode.selectors);
- },
- visitRulesetOut: function (rulesetNode) {
- if (!rulesetNode.root) {
- this.contexts.length = this.contexts.length - 1;
- }
- },
- visitMedia: function (mediaNode, visitArgs) {
- mediaNode.allExtends = [];
- this.allExtendsStack.push(mediaNode.allExtends);
- },
- visitMediaOut: function (mediaNode) {
- this.allExtendsStack.length = this.allExtendsStack.length - 1;
- },
- visitDirective: function (directiveNode, visitArgs) {
- directiveNode.allExtends = [];
- this.allExtendsStack.push(directiveNode.allExtends);
- },
- visitDirectiveOut: function (directiveNode) {
- this.allExtendsStack.length = this.allExtendsStack.length - 1;
- }
- };
-
- tree.processExtendsVisitor = function() {
- this._visitor = new tree.visitor(this);
- };
-
- tree.processExtendsVisitor.prototype = {
- run: function(root) {
- var extendFinder = new tree.extendFinderVisitor();
- extendFinder.run(root);
- if (!extendFinder.foundExtends) { return root; }
- root.allExtends = root.allExtends.concat(this.doExtendChaining(root.allExtends, root.allExtends));
- this.allExtendsStack = [root.allExtends];
- return this._visitor.visit(root);
- },
- doExtendChaining: function (extendsList, extendsListTarget, iterationCount) {
- //
- // chaining is different from normal extension.. if we extend an extend then we are not just copying, altering and pasting
- // the selector we would do normally, but we are also adding an extend with the same target selector
- // this means this new extend can then go and alter other extends
- //
- // this method deals with all the chaining work - without it, extend is flat and doesn't work on other extend selectors
- // this is also the most expensive.. and a match on one selector can cause an extension of a selector we had already processed if
- // we look at each selector at a time, as is done in visitRuleset
-
- var extendIndex, targetExtendIndex, matches, extendsToAdd = [], newSelector, extendVisitor = this, selectorPath, extend, targetExtend, newExtend;
-
- iterationCount = iterationCount || 0;
-
- //loop through comparing every extend with every target extend.
- // a target extend is the one on the ruleset we are looking at copy/edit/pasting in place
- // e.g. .a:extend(.b) {} and .b:extend(.c) {} then the first extend extends the second one
- // and the second is the target.
- // the seperation into two lists allows us to process a subset of chains with a bigger set, as is the
- // case when processing media queries
- for(extendIndex = 0; extendIndex < extendsList.length; extendIndex++){
- for(targetExtendIndex = 0; targetExtendIndex < extendsListTarget.length; targetExtendIndex++){
-
- extend = extendsList[extendIndex];
- targetExtend = extendsListTarget[targetExtendIndex];
-
- // look for circular references
- if (this.inInheritanceChain(targetExtend, extend)) { continue; }
-
- // find a match in the target extends self selector (the bit before :extend)
- selectorPath = [targetExtend.selfSelectors[0]];
- matches = extendVisitor.findMatch(extend, selectorPath);
-
- if (matches.length) {
-
- // we found a match, so for each self selector..
- extend.selfSelectors.forEach(function(selfSelector) {
-
- // process the extend as usual
- newSelector = extendVisitor.extendSelector(matches, selectorPath, selfSelector);
-
- // but now we create a new extend from it
- newExtend = new(tree.Extend)(targetExtend.selector, targetExtend.option, 0);
- newExtend.selfSelectors = newSelector;
-
- // add the extend onto the list of extends for that selector
- newSelector[newSelector.length-1].extendList = [newExtend];
-
- // record that we need to add it.
- extendsToAdd.push(newExtend);
- newExtend.ruleset = targetExtend.ruleset;
-
- //remember its parents for circular references
- newExtend.parents = [targetExtend, extend];
-
- // only process the selector once.. if we have :extend(.a,.b) then multiple
- // extends will look at the same selector path, so when extending
- // we know that any others will be duplicates in terms of what is added to the css
- if (targetExtend.firstExtendOnThisSelectorPath) {
- newExtend.firstExtendOnThisSelectorPath = true;
- targetExtend.ruleset.paths.push(newSelector);
- }
- });
- }
- }
- }
-
- if (extendsToAdd.length) {
- // try to detect circular references to stop a stack overflow.
- // may no longer be needed.
- this.extendChainCount++;
- if (iterationCount > 100) {
- var selectorOne = "{unable to calculate}";
- var selectorTwo = "{unable to calculate}";
- try
- {
- selectorOne = extendsToAdd[0].selfSelectors[0].toCSS();
- selectorTwo = extendsToAdd[0].selector.toCSS();
- }
- catch(e) {}
- throw {message: "extend circular reference detected. One of the circular extends is currently:"+selectorOne+":extend(" + selectorTwo+")"};
- }
-
- // now process the new extends on the existing rules so that we can handle a extending b extending c ectending d extending e...
- return extendsToAdd.concat(extendVisitor.doExtendChaining(extendsToAdd, extendsListTarget, iterationCount+1));
- } else {
- return extendsToAdd;
- }
- },
- inInheritanceChain: function (possibleParent, possibleChild) {
- if (possibleParent === possibleChild) {
- return true;
- }
- if (possibleChild.parents) {
- if (this.inInheritanceChain(possibleParent, possibleChild.parents[0])) {
- return true;
- }
- if (this.inInheritanceChain(possibleParent, possibleChild.parents[1])) {
- return true;
- }
- }
- return false;
- },
- visitRule: function (ruleNode, visitArgs) {
- visitArgs.visitDeeper = false;
- },
- visitMixinDefinition: function (mixinDefinitionNode, visitArgs) {
- visitArgs.visitDeeper = false;
- },
- visitSelector: function (selectorNode, visitArgs) {
- visitArgs.visitDeeper = false;
- },
- visitRuleset: function (rulesetNode, visitArgs) {
- if (rulesetNode.root) {
- return;
- }
- var matches, pathIndex, extendIndex, allExtends = this.allExtendsStack[this.allExtendsStack.length-1], selectorsToAdd = [], extendVisitor = this, selectorPath;
-
- // look at each selector path in the ruleset, find any extend matches and then copy, find and replace
-
- for(extendIndex = 0; extendIndex < allExtends.length; extendIndex++) {
- for(pathIndex = 0; pathIndex < rulesetNode.paths.length; pathIndex++) {
-
- selectorPath = rulesetNode.paths[pathIndex];
-
- // extending extends happens initially, before the main pass
- if (rulesetNode.extendOnEveryPath || selectorPath[selectorPath.length-1].extendList.length) { continue; }
-
- matches = this.findMatch(allExtends[extendIndex], selectorPath);
-
- if (matches.length) {
-
- allExtends[extendIndex].selfSelectors.forEach(function(selfSelector) {
- selectorsToAdd.push(extendVisitor.extendSelector(matches, selectorPath, selfSelector));
- });
- }
- }
- }
- rulesetNode.paths = rulesetNode.paths.concat(selectorsToAdd);
- },
- findMatch: function (extend, haystackSelectorPath) {
- //
- // look through the haystack selector path to try and find the needle - extend.selector
- // returns an array of selector matches that can then be replaced
- //
- var haystackSelectorIndex, hackstackSelector, hackstackElementIndex, haystackElement,
- targetCombinator, i,
- extendVisitor = this,
- needleElements = extend.selector.elements,
- potentialMatches = [], potentialMatch, matches = [];
-
- // loop through the haystack elements
- for(haystackSelectorIndex = 0; haystackSelectorIndex < haystackSelectorPath.length; haystackSelectorIndex++) {
- hackstackSelector = haystackSelectorPath[haystackSelectorIndex];
-
- for(hackstackElementIndex = 0; hackstackElementIndex < hackstackSelector.elements.length; hackstackElementIndex++) {
-
- haystackElement = hackstackSelector.elements[hackstackElementIndex];
-
- // if we allow elements before our match we can add a potential match every time. otherwise only at the first element.
- if (extend.allowBefore || (haystackSelectorIndex === 0 && hackstackElementIndex === 0)) {
- potentialMatches.push({pathIndex: haystackSelectorIndex, index: hackstackElementIndex, matched: 0, initialCombinator: haystackElement.combinator});
- }
-
- for(i = 0; i < potentialMatches.length; i++) {
- potentialMatch = potentialMatches[i];
-
- // selectors add " " onto the first element. When we use & it joins the selectors together, but if we don't
- // then each selector in haystackSelectorPath has a space before it added in the toCSS phase. so we need to work out
- // what the resulting combinator will be
- targetCombinator = haystackElement.combinator.value;
- if (targetCombinator === '' && hackstackElementIndex === 0) {
- targetCombinator = ' ';
- }
-
- // if we don't match, null our match to indicate failure
- if (!extendVisitor.isElementValuesEqual(needleElements[potentialMatch.matched].value, haystackElement.value) ||
- (potentialMatch.matched > 0 && needleElements[potentialMatch.matched].combinator.value !== targetCombinator)) {
- potentialMatch = null;
- } else {
- potentialMatch.matched++;
- }
-
- // if we are still valid and have finished, test whether we have elements after and whether these are allowed
- if (potentialMatch) {
- potentialMatch.finished = potentialMatch.matched === needleElements.length;
- if (potentialMatch.finished &&
- (!extend.allowAfter && (hackstackElementIndex+1 < hackstackSelector.elements.length || haystackSelectorIndex+1 < haystackSelectorPath.length))) {
- potentialMatch = null;
- }
- }
- // if null we remove, if not, we are still valid, so either push as a valid match or continue
- if (potentialMatch) {
- if (potentialMatch.finished) {
- potentialMatch.length = needleElements.length;
- potentialMatch.endPathIndex = haystackSelectorIndex;
- potentialMatch.endPathElementIndex = hackstackElementIndex + 1; // index after end of match
- potentialMatches.length = 0; // we don't allow matches to overlap, so start matching again
- matches.push(potentialMatch);
- }
- } else {
- potentialMatches.splice(i, 1);
- i--;
- }
- }
- }
- }
- return matches;
- },
- isElementValuesEqual: function(elementValue1, elementValue2) {
- if (typeof elementValue1 === "string" || typeof elementValue2 === "string") {
- return elementValue1 === elementValue2;
- }
- if (elementValue1 instanceof tree.Attribute) {
- if (elementValue1.op !== elementValue2.op || elementValue1.key !== elementValue2.key) {
- return false;
- }
- if (!elementValue1.value || !elementValue2.value) {
- if (elementValue1.value || elementValue2.value) {
- return false;
- }
- return true;
- }
- elementValue1 = elementValue1.value.value || elementValue1.value;
- elementValue2 = elementValue2.value.value || elementValue2.value;
- return elementValue1 === elementValue2;
- }
- elementValue1 = elementValue1.value;
- elementValue2 = elementValue2.value;
- if (elementValue1 instanceof tree.Selector) {
- if (!(elementValue2 instanceof tree.Selector) || elementValue1.elements.length !== elementValue2.elements.length) {
- return false;
- }
- for(var i = 0; i <elementValue1.elements.length; i++) {
- if (elementValue1.elements[i].combinator.value !== elementValue2.elements[i].combinator.value) {
- if (i !== 0 || (elementValue1.elements[i].combinator.value || ' ') !== (elementValue2.elements[i].combinator.value || ' ')) {
- return false;
- }
- }
- if (!this.isElementValuesEqual(elementValue1.elements[i].value, elementValue2.elements[i].value)) {
- return false;
- }
- }
- return true;
- }
- return false;
- },
- extendSelector:function (matches, selectorPath, replacementSelector) {
-
- //for a set of matches, replace each match with the replacement selector
-
- var currentSelectorPathIndex = 0,
- currentSelectorPathElementIndex = 0,
- path = [],
- matchIndex,
- selector,
- firstElement,
- match,
- newElements;
-
- for (matchIndex = 0; matchIndex < matches.length; matchIndex++) {
- match = matches[matchIndex];
- selector = selectorPath[match.pathIndex];
- firstElement = new tree.Element(
- match.initialCombinator,
- replacementSelector.elements[0].value,
- replacementSelector.elements[0].index,
- replacementSelector.elements[0].currentFileInfo
- );
-
- if (match.pathIndex > currentSelectorPathIndex && currentSelectorPathElementIndex > 0) {
- path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex));
- currentSelectorPathElementIndex = 0;
- currentSelectorPathIndex++;
- }
-
- newElements = selector.elements
- .slice(currentSelectorPathElementIndex, match.index)
- .concat([firstElement])
- .concat(replacementSelector.elements.slice(1));
-
- if (currentSelectorPathIndex === match.pathIndex && matchIndex > 0) {
- path[path.length - 1].elements =
- path[path.length - 1].elements.concat(newElements);
- } else {
- path = path.concat(selectorPath.slice(currentSelectorPathIndex, match.pathIndex));
-
- path.push(new tree.Selector(
- newElements
- ));
- }
- currentSelectorPathIndex = match.endPathIndex;
- currentSelectorPathElementIndex = match.endPathElementIndex;
- if (currentSelectorPathElementIndex >= selectorPath[currentSelectorPathIndex].elements.length) {
- currentSelectorPathElementIndex = 0;
- currentSelectorPathIndex++;
- }
- }
-
- if (currentSelectorPathIndex < selectorPath.length && currentSelectorPathElementIndex > 0) {
- path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex));
- currentSelectorPathIndex++;
- }
-
- path = path.concat(selectorPath.slice(currentSelectorPathIndex, selectorPath.length));
-
- return path;
- },
- visitRulesetOut: function (rulesetNode) {
- },
- visitMedia: function (mediaNode, visitArgs) {
- var newAllExtends = mediaNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]);
- newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, mediaNode.allExtends));
- this.allExtendsStack.push(newAllExtends);
- },
- visitMediaOut: function (mediaNode) {
- this.allExtendsStack.length = this.allExtendsStack.length - 1;
- },
- visitDirective: function (directiveNode, visitArgs) {
- var newAllExtends = directiveNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]);
- newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, directiveNode.allExtends));
- this.allExtendsStack.push(newAllExtends);
- },
- visitDirectiveOut: function (directiveNode) {
- this.allExtendsStack.length = this.allExtendsStack.length - 1;
- }
- };
-
-})(require('./tree'));
-
-(function (tree) {
-
- tree.sourceMapOutput = function (options) {
- this._css = [];
- this._rootNode = options.rootNode;
- this._writeSourceMap = options.writeSourceMap;
- this._contentsMap = options.contentsMap;
- this._sourceMapFilename = options.sourceMapFilename;
- this._outputFilename = options.outputFilename;
- this._sourceMapURL = options.sourceMapURL;
- this._sourceMapBasepath = options.sourceMapBasepath;
- this._sourceMapRootpath = options.sourceMapRootpath;
- this._outputSourceFiles = options.outputSourceFiles;
- this._sourceMapGeneratorConstructor = options.sourceMapGenerator || require("source-map").SourceMapGenerator;
-
- if (this._sourceMapRootpath && this._sourceMapRootpath.charAt(this._sourceMapRootpath.length-1) !== '/') {
- this._sourceMapRootpath += '/';
- }
-
- this._lineNumber = 0;
- this._column = 0;
- };
-
- tree.sourceMapOutput.prototype.normalizeFilename = function(filename) {
- if (this._sourceMapBasepath && filename.indexOf(this._sourceMapBasepath) === 0) {
- filename = filename.substring(this._sourceMapBasepath.length);
- if (filename.charAt(0) === '\\' || filename.charAt(0) === '/') {
- filename = filename.substring(1);
- }
- }
- return (this._sourceMapRootpath || "") + filename.replace(/\\/g, '/');
- };
-
- tree.sourceMapOutput.prototype.add = function(chunk, fileInfo, index, mapLines) {
-
- //ignore adding empty strings
- if (!chunk) {
- return;
- }
-
- var lines,
- sourceLines,
- columns,
- sourceColumns,
- i;
-
- if (fileInfo) {
- var inputSource = this._contentsMap[fileInfo.filename].substring(0, index);
- sourceLines = inputSource.split("\n");
- sourceColumns = sourceLines[sourceLines.length-1];
- }
-
- lines = chunk.split("\n");
- columns = lines[lines.length-1];
-
- if (fileInfo) {
- if (!mapLines) {
- this._sourceMapGenerator.addMapping({ generated: { line: this._lineNumber + 1, column: this._column},
- original: { line: sourceLines.length, column: sourceColumns.length},
- source: this.normalizeFilename(fileInfo.filename)});
- } else {
- for(i = 0; i < lines.length; i++) {
- this._sourceMapGenerator.addMapping({ generated: { line: this._lineNumber + i + 1, column: i === 0 ? this._column : 0},
- original: { line: sourceLines.length + i, column: i === 0 ? sourceColumns.length : 0},
- source: this.normalizeFilename(fileInfo.filename)});
- }
- }
- }
-
- if (lines.length === 1) {
- this._column += columns.length;
- } else {
- this._lineNumber += lines.length - 1;
- this._column = columns.length;
- }
-
- this._css.push(chunk);
- };
-
- tree.sourceMapOutput.prototype.isEmpty = function() {
- return this._css.length === 0;
- };
-
- tree.sourceMapOutput.prototype.toCSS = function(env) {
- this._sourceMapGenerator = new this._sourceMapGeneratorConstructor({ file: this._outputFilename, sourceRoot: null });
-
- if (this._outputSourceFiles) {
- for(var filename in this._contentsMap) {
- this._sourceMapGenerator.setSourceContent(this.normalizeFilename(filename), this._contentsMap[filename]);
- }
- }
-
- this._rootNode.genCSS(env, this);
-
- if (this._css.length > 0) {
- var sourceMapURL,
- sourceMapContent = JSON.stringify(this._sourceMapGenerator.toJSON());
-
- if (this._sourceMapURL) {
- sourceMapURL = this._sourceMapURL;
- } else if (this._sourceMapFilename) {
- sourceMapURL = this.normalizeFilename(this._sourceMapFilename);
- }
-
- if (this._writeSourceMap) {
- this._writeSourceMap(sourceMapContent);
- } else {
- sourceMapURL = "data:application/json," + encodeURIComponent(sourceMapContent);
- }
-
- if (sourceMapURL) {
- this._css.push("/*# sourceMappingURL=" + sourceMapURL + " */");
- }
- }
-
- return this._css.join('');
- };
-
-})(require('./tree'));
-
-//
-// browser.js - client-side engine
-//
-/*global less, window, document, XMLHttpRequest, location */
-
-var isFileProtocol = /^(file|chrome(-extension)?|resource|qrc|app):/.test(location.protocol);
-
-less.env = less.env || (location.hostname == '127.0.0.1' ||
- location.hostname == '0.0.0.0' ||
- location.hostname == 'localhost' ||
- (location.port &&
- location.port.length > 0) ||
- isFileProtocol ? 'development'
- : 'production');
-
-var logLevel = {
- info: 2,
- errors: 1,
- none: 0
-};
-
-// The amount of logging in the javascript console.
-// 2 - Information and errors
-// 1 - Errors
-// 0 - None
-// Defaults to 2
-less.logLevel = typeof(less.logLevel) != 'undefined' ? less.logLevel : logLevel.info;
-
-// Load styles asynchronously (default: false)
-//
-// This is set to `false` by default, so that the body
-// doesn't start loading before the stylesheets are parsed.
-// Setting this to `true` can result in flickering.
-//
-less.async = less.async || false;
-less.fileAsync = less.fileAsync || false;
-
-// Interval between watch polls
-less.poll = less.poll || (isFileProtocol ? 1000 : 1500);
-
-//Setup user functions
-if (less.functions) {
- for(var func in less.functions) {
- less.tree.functions[func] = less.functions[func];
- }
-}
-
-var dumpLineNumbers = /!dumpLineNumbers:(comments|mediaquery|all)/.exec(location.hash);
-if (dumpLineNumbers) {
- less.dumpLineNumbers = dumpLineNumbers[1];
-}
-
-var typePattern = /^text\/(x-)?less$/;
-var cache = null;
-var fileCache = {};
-var varsPre = "";
-
-function log(str, level) {
- if (less.env == 'development' && typeof(console) !== 'undefined' && less.logLevel >= level) {
- console.log('less: ' + str);
- }
-}
-
-function extractId(href) {
- return href.replace(/^[a-z-]+:\/+?[^\/]+/, '' ) // Remove protocol & domain
- .replace(/^\//, '' ) // Remove root /
- .replace(/\.[a-zA-Z]+$/, '' ) // Remove simple extension
- .replace(/[^\.\w-]+/g, '-') // Replace illegal characters
- .replace(/\./g, ':'); // Replace dots with colons(for valid id)
-}
-
-function errorConsole(e, rootHref) {
- var template = '{line} {content}';
- var filename = e.filename || rootHref;
- var errors = [];
- var content = (e.type || "Syntax") + "Error: " + (e.message || 'There is an error in your .less file') +
- " in " + filename + " ";
-
- var errorline = function (e, i, classname) {
- if (e.extract[i] !== undefined) {
- errors.push(template.replace(/\{line\}/, (parseInt(e.line, 10) || 0) + (i - 1))
- .replace(/\{class\}/, classname)
- .replace(/\{content\}/, e.extract[i]));
- }
- };
-
- if (e.extract) {
- errorline(e, 0, '');
- errorline(e, 1, 'line');
- errorline(e, 2, '');
- content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':\n' +
- errors.join('\n');
- } else if (e.stack) {
- content += e.stack;
- }
- log(content, logLevel.errors);
-}
-
-function createCSS(styles, sheet, lastModified) {
- // Strip the query-string
- var href = sheet.href || '';
-
- // If there is no title set, use the filename, minus the extension
- var id = 'less:' + (sheet.title || extractId(href));
-
- // If this has already been inserted into the DOM, we may need to replace it
- var oldCss = document.getElementById(id);
- var keepOldCss = false;
-
- // Create a new stylesheet node for insertion or (if necessary) replacement
- var css = document.createElement('style');
- css.setAttribute('type', 'text/css');
- if (sheet.media) {
- css.setAttribute('media', sheet.media);
- }
- css.id = id;
-
- if (css.styleSheet) { // IE
- try {
- css.styleSheet.cssText = styles;
- } catch (e) {
- throw new(Error)("Couldn't reassign styleSheet.cssText.");
- }
- } else {
- css.appendChild(document.createTextNode(styles));
-
- // If new contents match contents of oldCss, don't replace oldCss
- keepOldCss = (oldCss !== null && oldCss.childNodes.length > 0 && css.childNodes.length > 0 &&
- oldCss.firstChild.nodeValue === css.firstChild.nodeValue);
- }
-
- var head = document.getElementsByTagName('head')[0];
-
- // If there is no oldCss, just append; otherwise, only append if we need
- // to replace oldCss with an updated stylesheet
- if (oldCss === null || keepOldCss === false) {
- var nextEl = sheet && sheet.nextSibling || null;
- if (nextEl) {
- nextEl.parentNode.insertBefore(css, nextEl);
- } else {
- head.appendChild(css);
- }
- }
- if (oldCss && keepOldCss === false) {
- oldCss.parentNode.removeChild(oldCss);
- }
-
- // Don't update the local store if the file wasn't modified
- if (lastModified && cache) {
- log('saving ' + href + ' to cache.', logLevel.info);
- try {
- cache.setItem(href, styles);
- cache.setItem(href + ':timestamp', lastModified);
- } catch(e) {
- //TODO - could do with adding more robust error handling
- log('failed to save', logLevel.errors);
- }
- }
-}
-
-function errorHTML(e, rootHref) {
- var id = 'less-error-message:' + extractId(rootHref || "");
- var template = '<li><label>{line}</label><pre class="{class}">{content}</pre></li>';
- var elem = document.createElement('div'), timer, content, errors = [];
- var filename = e.filename || rootHref;
- var filenameNoPath = filename.match(/([^\/]+(\?.*)?)$/)[1];
-
- elem.id = id;
- elem.className = "less-error-message";
-
- content = '<h3>' + (e.type || "Syntax") + "Error: " + (e.message || 'There is an error in your .less file') +
- '</h3>' + '<p>in <a href="' + filename + '">' + filenameNoPath + "</a> ";
-
- var errorline = function (e, i, classname) {
- if (e.extract[i] !== undefined) {
- errors.push(template.replace(/\{line\}/, (parseInt(e.line, 10) || 0) + (i - 1))
- .replace(/\{class\}/, classname)
- .replace(/\{content\}/, e.extract[i]));
- }
- };
-
- if (e.extract) {
- errorline(e, 0, '');
- errorline(e, 1, 'line');
- errorline(e, 2, '');
- content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':</p>' +
- '<ul>' + errors.join('') + '</ul>';
- } else if (e.stack) {
- content += '<br/>' + e.stack.split('\n').slice(1).join('<br/>');
- }
- elem.innerHTML = content;
-
- // CSS for error messages
- createCSS([
- '.less-error-message ul, .less-error-message li {',
- 'list-style-type: none;',
- 'margin-right: 15px;',
- 'padding: 4px 0;',
- 'margin: 0;',
- '}',
- '.less-error-message label {',
- 'font-size: 12px;',
- 'margin-right: 15px;',
- 'padding: 4px 0;',
- 'color: #cc7777;',
- '}',
- '.less-error-message pre {',
- 'color: #dd6666;',
- 'padding: 4px 0;',
- 'margin: 0;',
- 'display: inline-block;',
- '}',
- '.less-error-message pre.line {',
- 'color: #ff0000;',
- '}',
- '.less-error-message h3 {',
- 'font-size: 20px;',
- 'font-weight: bold;',
- 'padding: 15px 0 5px 0;',
- 'margin: 0;',
- '}',
- '.less-error-message a {',
- 'color: #10a',
- '}',
- '.less-error-message .error {',
- 'color: red;',
- 'font-weight: bold;',
- 'padding-bottom: 2px;',
- 'border-bottom: 1px dashed red;',
- '}'
- ].join('\n'), { title: 'error-message' });
-
- elem.style.cssText = [
- "font-family: Arial, sans-serif",
- "border: 1px solid #e00",
- "background-color: #eee",
- "border-radius: 5px",
- "-webkit-border-radius: 5px",
- "-moz-border-radius: 5px",
- "color: #e00",
- "padding: 15px",
- "margin-bottom: 15px"
- ].join(';');
-
- if (less.env == 'development') {
- timer = setInterval(function () {
- if (document.body) {
- if (document.getElementById(id)) {
- document.body.replaceChild(elem, document.getElementById(id));
- } else {
- document.body.insertBefore(elem, document.body.firstChild);
- }
- clearInterval(timer);
- }
- }, 10);
- }
-}
-
-function error(e, rootHref) {
- if (!less.errorReporting || less.errorReporting === "html") {
- errorHTML(e, rootHref);
- } else if (less.errorReporting === "console") {
- errorConsole(e, rootHref);
- } else if (typeof less.errorReporting === 'function') {
- less.errorReporting("add", e, rootHref);
- }
-}
-
-function removeErrorHTML(path) {
- var node = document.getElementById('less-error-message:' + extractId(path));
- if (node) {
- node.parentNode.removeChild(node);
- }
-}
-
-function removeErrorConsole(path) {
- //no action
-}
-
-function removeError(path) {
- if (!less.errorReporting || less.errorReporting === "html") {
- removeErrorHTML(path);
- } else if (less.errorReporting === "console") {
- removeErrorConsole(path);
- } else if (typeof less.errorReporting === 'function') {
- less.errorReporting("remove", path);
- }
-}
-
-function loadStyles(newVars) {
- var styles = document.getElementsByTagName('style'),
- style;
- for (var i = 0; i < styles.length; i++) {
- style = styles[i];
- if (style.type.match(typePattern)) {
- var env = new less.tree.parseEnv(less),
- lessText = style.innerHTML || '';
- env.filename = document.location.href.replace(/#.*$/, '');
-
- if (newVars || varsPre) {
- env.useFileCache = true;
-
- lessText = varsPre + lessText;
-
- if (newVars) {
- lessText += "\n" + newVars;
- }
- }
-
- /*jshint loopfunc:true */
- // use closure to store current value of i
- var callback = (function(style) {
- return function (e, cssAST) {
- if (e) {
- return error(e, "inline");
- }
- var css = cssAST.toCSS(less);
- style.type = 'text/css';
- if (style.styleSheet) {
- style.styleSheet.cssText = css;
- } else {
- style.innerHTML = css;
- }
- };
- })(style);
- new(less.Parser)(env).parse(lessText, callback);
- }
- }
-}
-
-function extractUrlParts(url, baseUrl) {
- // urlParts[1] = protocol&hostname || /
- // urlParts[2] = / if path relative to host base
- // urlParts[3] = directories
- // urlParts[4] = filename
- // urlParts[5] = parameters
-
- var urlPartsRegex = /^((?:[a-z-]+:)?\/+?(?:[^\/\?#]*\/)|([\/\\]))?((?:[^\/\\\?#]*[\/\\])*)([^\/\\\?#]*)([#\?].*)?$/i,
- urlParts = url.match(urlPartsRegex),
- returner = {}, directories = [], i, baseUrlParts;
-
- if (!urlParts) {
- throw new Error("Could not parse sheet href - '"+url+"'");
- }
-
- // Stylesheets in IE don't always return the full path
- if (!urlParts[1] || urlParts[2]) {
- baseUrlParts = baseUrl.match(urlPartsRegex);
- if (!baseUrlParts) {
- throw new Error("Could not parse page url - '"+baseUrl+"'");
- }
- urlParts[1] = urlParts[1] || baseUrlParts[1] || "";
- if (!urlParts[2]) {
- urlParts[3] = baseUrlParts[3] + urlParts[3];
- }
- }
-
- if (urlParts[3]) {
- directories = urlParts[3].replace(/\\/g, "/").split("/");
-
- // extract out . before .. so .. doesn't absorb a non-directory
- for(i = 0; i < directories.length; i++) {
- if (directories[i] === ".") {
- directories.splice(i, 1);
- i -= 1;
- }
- }
-
- for(i = 0; i < directories.length; i++) {
- if (directories[i] === ".." && i > 0) {
- directories.splice(i-1, 2);
- i -= 2;
- }
- }
- }
-
- returner.hostPart = urlParts[1];
- returner.directories = directories;
- returner.path = urlParts[1] + directories.join("/");
- returner.fileUrl = returner.path + (urlParts[4] || "");
- returner.url = returner.fileUrl + (urlParts[5] || "");
- return returner;
-}
-
-function pathDiff(url, baseUrl) {
- // diff between two paths to create a relative path
-
- var urlParts = extractUrlParts(url),
- baseUrlParts = extractUrlParts(baseUrl),
- i, max, urlDirectories, baseUrlDirectories, diff = "";
- if (urlParts.hostPart !== baseUrlParts.hostPart) {
- return "";
- }
- max = Math.max(baseUrlParts.directories.length, urlParts.directories.length);
- for(i = 0; i < max; i++) {
- if (baseUrlParts.directories[i] !== urlParts.directories[i]) { break; }
- }
- baseUrlDirectories = baseUrlParts.directories.slice(i);
- urlDirectories = urlParts.directories.slice(i);
- for(i = 0; i < baseUrlDirectories.length-1; i++) {
- diff += "../";
- }
- for(i = 0; i < urlDirectories.length-1; i++) {
- diff += urlDirectories[i] + "/";
- }
- return diff;
-}
-
-function getXMLHttpRequest() {
- if (window.XMLHttpRequest) {
- return new XMLHttpRequest();
- } else {
- try {
- /*global ActiveXObject */
- return new ActiveXObject("MSXML2.XMLHTTP.3.0");
- } catch (e) {
- log("browser doesn't support AJAX.", logLevel.errors);
- return null;
- }
- }
-}
-
-function doXHR(url, type, callback, errback) {
- var xhr = getXMLHttpRequest();
- var async = isFileProtocol ? less.fileAsync : less.async;
-
- if (typeof(xhr.overrideMimeType) === 'function') {
- xhr.overrideMimeType('text/css');
- }
- log("XHR: Getting '" + url + "'", logLevel.info);
- xhr.open('GET', url, async);
- xhr.setRequestHeader('Accept', type || 'text/x-less, text/css; q=0.9, */*; q=0.5');
- xhr.send(null);
-
- function handleResponse(xhr, callback, errback) {
- if (xhr.status >= 200 && xhr.status < 300) {
- callback(xhr.responseText,
- xhr.getResponseHeader("Last-Modified"));
- } else if (typeof(errback) === 'function') {
- errback(xhr.status, url);
- }
- }
-
- if (isFileProtocol && !less.fileAsync) {
- if (xhr.status === 0 || (xhr.status >= 200 && xhr.status < 300)) {
- callback(xhr.responseText);
- } else {
- errback(xhr.status, url);
- }
- } else if (async) {
- xhr.onreadystatechange = function () {
- if (xhr.readyState == 4) {
- handleResponse(xhr, callback, errback);
- }
- };
- } else {
- handleResponse(xhr, callback, errback);
- }
-}
-
-function loadFile(originalHref, currentFileInfo, callback, env, newVars) {
-
- if (currentFileInfo && currentFileInfo.currentDirectory && !/^([a-z-]+:)?\//.test(originalHref)) {
- originalHref = currentFileInfo.currentDirectory + originalHref;
- }
-
- // sheet may be set to the stylesheet for the initial load or a collection of properties including
- // some env variables for imports
- var hrefParts = extractUrlParts(originalHref, window.location.href);
- var href = hrefParts.url;
- var newFileInfo = {
- currentDirectory: hrefParts.path,
- filename: href
- };
-
- if (currentFileInfo) {
- newFileInfo.entryPath = currentFileInfo.entryPath;
- newFileInfo.rootpath = currentFileInfo.rootpath;
- newFileInfo.rootFilename = currentFileInfo.rootFilename;
- newFileInfo.relativeUrls = currentFileInfo.relativeUrls;
- } else {
- newFileInfo.entryPath = hrefParts.path;
- newFileInfo.rootpath = less.rootpath || hrefParts.path;
- newFileInfo.rootFilename = href;
- newFileInfo.relativeUrls = env.relativeUrls;
- }
-
- if (newFileInfo.relativeUrls) {
- if (env.rootpath) {
- newFileInfo.rootpath = extractUrlParts(env.rootpath + pathDiff(hrefParts.path, newFileInfo.entryPath)).path;
- } else {
- newFileInfo.rootpath = hrefParts.path;
- }
- }
-
- if (env.useFileCache && fileCache[href]) {
- try {
- var lessText = fileCache[href];
- if (newVars) {
- lessText += "\n" + newVars;
- }
- callback(null, lessText, href, newFileInfo, { lastModified: new Date() });
- } catch (e) {
- callback(e, null, href);
- }
- return;
- }
-
- doXHR(href, env.mime, function (data, lastModified) {
- data = varsPre + data;
-
- // per file cache
- fileCache[href] = data;
-
- // Use remote copy (re-parse)
- try {
- callback(null, data, href, newFileInfo, { lastModified: lastModified });
- } catch (e) {
- callback(e, null, href);
- }
- }, function (status, url) {
- callback({ type: 'File', message: "'" + url + "' wasn't found (" + status + ")" }, null, href);
- });
-}
-
-function loadStyleSheet(sheet, callback, reload, remaining, newVars) {
-
- var env = new less.tree.parseEnv(less);
- env.mime = sheet.type;
-
- if (newVars || varsPre) {
- env.useFileCache = true;
- }
-
- loadFile(sheet.href, null, function(e, data, path, newFileInfo, webInfo) {
-
- if (webInfo) {
- webInfo.remaining = remaining;
-
- var css = cache && cache.getItem(path),
- timestamp = cache && cache.getItem(path + ':timestamp');
-
- if (!reload && timestamp && webInfo.lastModified &&
- (new(Date)(webInfo.lastModified).valueOf() ===
- new(Date)(timestamp).valueOf())) {
- // Use local copy
- createCSS(css, sheet);
- webInfo.local = true;
- callback(null, null, data, sheet, webInfo, path);
- return;
- }
- }
-
- //TODO add tests around how this behaves when reloading
- removeError(path);
-
- if (data) {
- env.currentFileInfo = newFileInfo;
- new(less.Parser)(env).parse(data, function (e, root) {
- if (e) { return callback(e, null, null, sheet); }
- try {
- callback(e, root, data, sheet, webInfo, path);
- } catch (e) {
- callback(e, null, null, sheet);
- }
- });
- } else {
- callback(e, null, null, sheet, webInfo, path);
- }
- }, env, newVars);
-}
-
-function loadStyleSheets(callback, reload, newVars) {
- for (var i = 0; i < less.sheets.length; i++) {
- loadStyleSheet(less.sheets[i], callback, reload, less.sheets.length - (i + 1), newVars);
- }
-}
-
-function initRunningMode(){
- if (less.env === 'development') {
- less.optimization = 0;
- less.watchTimer = setInterval(function () {
- if (less.watchMode) {
- loadStyleSheets(function (e, root, _, sheet, env) {
- if (e) {
- error(e, sheet.href);
- } else if (root) {
- createCSS(root.toCSS(less), sheet, env.lastModified);
- }
- });
- }
- }, less.poll);
- } else {
- less.optimization = 3;
- }
-}
-
-function serializeVars(vars) {
- var s = "";
-
- for (var name in vars) {
- s += ((name.slice(0,1) === '@')? '' : '@') + name +': '+
- ((vars[name].slice(-1) === ';')? vars[name] : vars[name] +';');
- }
-
- return s;
-}
-
-
-//
-// Watch mode
-//
-less.watch = function () {
- if (!less.watchMode ){
- less.env = 'development';
- initRunningMode();
- }
- return this.watchMode = true;
-};
-
-less.unwatch = function () {clearInterval(less.watchTimer); return this.watchMode = false; };
-
-if (/!watch/.test(location.hash)) {
- less.watch();
-}
-
-if (less.env != 'development') {
- try {
- cache = (typeof(window.localStorage) === 'undefined') ? null : window.localStorage;
- } catch (_) {}
-}
-
-//
-// Get all <link> tags with the 'rel' attribute set to "stylesheet/less"
-//
-var links = document.getElementsByTagName('link');
-
-less.sheets = [];
-
-for (var i = 0; i < links.length; i++) {
- if (links[i].rel === 'stylesheet/less' || (links[i].rel.match(/stylesheet/) &&
- (links[i].type.match(typePattern)))) {
- less.sheets.push(links[i]);
- }
-}
-
-//
-// With this function, it's possible to alter variables and re-render
-// CSS without reloading less-files
-//
-less.modifyVars = function(record) {
- less.refresh(false, serializeVars(record));
-};
-
-less.refresh = function (reload, newVars) {
- var startTime, endTime;
- startTime = endTime = new Date();
-
- loadStyleSheets(function (e, root, _, sheet, env) {
- if (e) {
- return error(e, sheet.href);
- }
- if (env.local) {
- log("loading " + sheet.href + " from cache.", logLevel.info);
- } else {
- log("parsed " + sheet.href + " successfully.", logLevel.info);
- createCSS(root.toCSS(less), sheet, env.lastModified);
- }
- log("css for " + sheet.href + " generated in " + (new Date() - endTime) + 'ms', logLevel.info);
- if (env.remaining === 0) {
- log("css generated in " + (new Date() - startTime) + 'ms', logLevel.info);
- }
- endTime = new Date();
- }, reload, newVars);
-
- loadStyles(newVars);
-};
-
-if (less.globalVars) {
- varsPre = serializeVars(less.globalVars) + "\n";
-}
-
-less.refreshStyles = loadStyles;
-
-less.Parser.fileLoader = loadFile;
-
-less.refresh(less.env === 'development');
-
-// amd.js
-//
-// Define Less as an AMD module.
-if (typeof define === "function" && define.amd) {
- define(function () { return less; } );
-}
-
-})(window);
\ No newline at end of file
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