kopia lustrzana https://github.com/c9/core
6914 wiersze
239 KiB
JavaScript
6914 wiersze
239 KiB
JavaScript
/*!
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* LESS - Leaner CSS v1.5.0
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* http://lesscss.org
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*
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* Copyright (c) 2009-2013, Alexis Sellier <self@cloudhead.net>
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* Licensed under the Apache v2 License.
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*
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* @licence
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*/
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(function (window, undefined) {//
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// Stub out `require` in the browser
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//
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function require(arg) {
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return window.less[arg.split('/')[1]];
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};
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if (typeof(window.less) === 'undefined' || typeof(window.less.nodeType) !== 'undefined') { window.less = {}; }
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less = window.less;
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tree = window.less.tree = {};
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less.mode = 'browser';
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var less, tree;
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// Node.js does not have a header file added which defines less
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if (less === undefined) {
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less = exports;
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tree = require('./tree');
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less.mode = 'node';
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}
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//
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// less.js - parser
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//
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// A relatively straight-forward predictive parser.
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// There is no tokenization/lexing stage, the input is parsed
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// in one sweep.
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//
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// To make the parser fast enough to run in the browser, several
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// optimization had to be made:
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//
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// - Matching and slicing on a huge input is often cause of slowdowns.
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// The solution is to chunkify the input into smaller strings.
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// The chunks are stored in the `chunks` var,
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// `j` holds the current chunk index, and `current` holds
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// the index of the current chunk in relation to `input`.
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// This gives us an almost 4x speed-up.
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//
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// - In many cases, we don't need to match individual tokens;
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// for example, if a value doesn't hold any variables, operations
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// or dynamic references, the parser can effectively 'skip' it,
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// treating it as a literal.
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// An example would be '1px solid #000' - which evaluates to itself,
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// we don't need to know what the individual components are.
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// The drawback, of course is that you don't get the benefits of
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// syntax-checking on the CSS. This gives us a 50% speed-up in the parser,
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// and a smaller speed-up in the code-gen.
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//
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//
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// Token matching is done with the `$` function, which either takes
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// a terminal string or regexp, or a non-terminal function to call.
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// It also takes care of moving all the indices forwards.
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//
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//
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less.Parser = function Parser(env) {
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var input, // LeSS input string
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i, // current index in `input`
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j, // current chunk
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temp, // temporarily holds a chunk's state, for backtracking
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memo, // temporarily holds `i`, when backtracking
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furthest, // furthest index the parser has gone to
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chunks, // chunkified input
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current, // index of current chunk, in `input`
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parser,
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rootFilename = env && env.filename;
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// Top parser on an import tree must be sure there is one "env"
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// which will then be passed around by reference.
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if (!(env instanceof tree.parseEnv)) {
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env = new tree.parseEnv(env);
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}
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var imports = this.imports = {
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paths: env.paths || [], // Search paths, when importing
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queue: [], // Files which haven't been imported yet
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files: env.files, // Holds the imported parse trees
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contents: env.contents, // Holds the imported file contents
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mime: env.mime, // MIME type of .less files
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error: null, // Error in parsing/evaluating an import
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push: function (path, currentFileInfo, importOptions, callback) {
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var parserImports = this;
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this.queue.push(path);
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var fileParsedFunc = function (e, root, fullPath) {
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parserImports.queue.splice(parserImports.queue.indexOf(path), 1); // Remove the path from the queue
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var importedPreviously = fullPath in parserImports.files || fullPath === rootFilename;
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parserImports.files[fullPath] = root; // Store the root
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if (e && !parserImports.error) { parserImports.error = e; }
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callback(e, root, importedPreviously, fullPath);
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};
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if (less.Parser.importer) {
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less.Parser.importer(path, currentFileInfo, fileParsedFunc, env);
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} else {
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less.Parser.fileLoader(path, currentFileInfo, function(e, contents, fullPath, newFileInfo) {
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if (e) {fileParsedFunc(e); return;}
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var newEnv = new tree.parseEnv(env);
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newEnv.currentFileInfo = newFileInfo;
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newEnv.processImports = false;
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newEnv.contents[fullPath] = contents;
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if (currentFileInfo.reference || importOptions.reference) {
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newFileInfo.reference = true;
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}
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if (importOptions.inline) {
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fileParsedFunc(null, contents, fullPath);
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} else {
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new(less.Parser)(newEnv).parse(contents, function (e, root) {
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fileParsedFunc(e, root, fullPath);
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});
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}
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}, env);
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}
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}
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};
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function save() { temp = chunks[j], memo = i, current = i; }
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function restore() { chunks[j] = temp, i = memo, current = i; }
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function sync() {
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if (i > current) {
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chunks[j] = chunks[j].slice(i - current);
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current = i;
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}
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}
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function isWhitespace(c) {
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// Could change to \s?
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var code = c.charCodeAt(0);
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return code === 32 || code === 10 || code === 9;
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}
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//
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// Parse from a token, regexp or string, and move forward if match
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//
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function $(tok) {
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var match, length;
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//
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// Non-terminal
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//
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if (tok instanceof Function) {
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return tok.call(parser.parsers);
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//
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// Terminal
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//
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// Either match a single character in the input,
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// or match a regexp in the current chunk (chunk[j]).
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//
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} else if (typeof(tok) === 'string') {
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match = input.charAt(i) === tok ? tok : null;
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length = 1;
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sync ();
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} else {
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sync ();
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if (match = tok.exec(chunks[j])) {
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length = match[0].length;
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} else {
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return null;
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}
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}
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// The match is confirmed, add the match length to `i`,
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// and consume any extra white-space characters (' ' || '\n')
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// which come after that. The reason for this is that LeSS's
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// grammar is mostly white-space insensitive.
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//
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if (match) {
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skipWhitespace(length);
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if (typeof(match) === 'string') {
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return match;
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} else {
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return match.length === 1 ? match[0] : match;
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}
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}
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}
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function skipWhitespace(length) {
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var oldi = i, oldj = j,
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endIndex = i + chunks[j].length,
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mem = i += length;
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while (i < endIndex) {
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if (! isWhitespace(input.charAt(i))) { break; }
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i++;
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}
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chunks[j] = chunks[j].slice(length + (i - mem));
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current = i;
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if (chunks[j].length === 0 && j < chunks.length - 1) { j++; }
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return oldi !== i || oldj !== j;
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}
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function expect(arg, msg) {
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var result = $(arg);
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if (! result) {
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error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'"
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: "unexpected token"));
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} else {
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return result;
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}
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}
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function error(msg, type) {
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var e = new Error(msg);
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e.index = i;
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e.type = type || 'Syntax';
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throw e;
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}
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// Same as $(), but don't change the state of the parser,
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// just return the match.
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function peek(tok) {
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if (typeof(tok) === 'string') {
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return input.charAt(i) === tok;
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} else {
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return tok.test(chunks[j]);
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}
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}
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function getInput(e, env) {
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if (e.filename && env.currentFileInfo.filename && (e.filename !== env.currentFileInfo.filename)) {
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return parser.imports.contents[e.filename];
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} else {
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return input;
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}
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}
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function getLocation(index, inputStream) {
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var n = index + 1,
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line = null,
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column = -1;
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while (--n >= 0 && inputStream.charAt(n) !== '\n') {
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column++;
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}
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if (typeof index === 'number') {
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line = (inputStream.slice(0, index).match(/\n/g) || "").length;
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}
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return {
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line: line,
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column: column
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};
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}
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function getDebugInfo(index, inputStream, env) {
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var filename = env.currentFileInfo.filename;
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if (less.mode !== 'browser' && less.mode !== 'rhino') {
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filename = require('path').resolve(filename);
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}
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return {
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lineNumber: getLocation(index, inputStream).line + 1,
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fileName: filename
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};
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}
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function LessError(e, env) {
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var input = getInput(e, env),
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loc = getLocation(e.index, input),
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line = loc.line,
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col = loc.column,
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callLine = e.call && getLocation(e.call, input).line,
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lines = input.split('\n');
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this.type = e.type || 'Syntax';
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this.message = e.message;
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this.filename = e.filename || env.currentFileInfo.filename;
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this.index = e.index;
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this.line = typeof(line) === 'number' ? line + 1 : null;
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this.callLine = callLine + 1;
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this.callExtract = lines[callLine];
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this.stack = e.stack;
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this.column = col;
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this.extract = [
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lines[line - 1],
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lines[line],
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lines[line + 1]
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];
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}
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LessError.prototype = new Error();
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LessError.prototype.constructor = LessError;
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this.env = env = env || {};
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// The optimization level dictates the thoroughness of the parser,
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// the lower the number, the less nodes it will create in the tree.
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// This could matter for debugging, or if you want to access
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// the individual nodes in the tree.
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this.optimization = ('optimization' in this.env) ? this.env.optimization : 1;
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//
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// The Parser
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//
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return parser = {
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imports: imports,
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//
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// Parse an input string into an abstract syntax tree,
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// call `callback` when done.
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//
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parse: function (str, callback) {
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var root, line, lines, error = null;
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i = j = current = furthest = 0;
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input = str.replace(/\r\n/g, '\n');
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// Remove potential UTF Byte Order Mark
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input = input.replace(/^\uFEFF/, '');
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parser.imports.contents[env.currentFileInfo.filename] = input;
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// Split the input into chunks.
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chunks = (function (chunks) {
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var j = 0,
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skip = /(?:@\{[\w-]+\}|[^"'`\{\}\/\(\)\\])+/g,
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comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g,
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string = /"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'|`((?:[^`]|\\.)*)`/g,
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level = 0,
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match,
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chunk = chunks[0],
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inParam;
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for (var i = 0, c, cc; i < input.length;) {
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skip.lastIndex = i;
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if (match = skip.exec(input)) {
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if (match.index === i) {
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i += match[0].length;
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chunk.push(match[0]);
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}
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}
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c = input.charAt(i);
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comment.lastIndex = string.lastIndex = i;
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if (match = string.exec(input)) {
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if (match.index === i) {
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i += match[0].length;
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chunk.push(match[0]);
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continue;
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}
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}
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if (!inParam && c === '/') {
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cc = input.charAt(i + 1);
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if (cc === '/' || cc === '*') {
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if (match = comment.exec(input)) {
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if (match.index === i) {
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i += match[0].length;
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chunk.push(match[0]);
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continue;
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}
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}
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}
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}
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switch (c) {
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case '{':
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if (!inParam) {
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level++;
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chunk.push(c);
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break;
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}
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/* falls through */
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case '}':
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if (!inParam) {
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level--;
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chunk.push(c);
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chunks[++j] = chunk = [];
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break;
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}
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/* falls through */
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case '(':
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if (!inParam) {
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inParam = true;
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chunk.push(c);
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break;
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}
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/* falls through */
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case ')':
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if (inParam) {
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inParam = false;
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chunk.push(c);
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break;
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}
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/* falls through */
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default:
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chunk.push(c);
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}
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i++;
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}
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if (level !== 0) {
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error = new(LessError)({
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index: i-1,
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type: 'Parse',
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message: (level > 0) ? "missing closing `}`" : "missing opening `{`",
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filename: env.currentFileInfo.filename
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}, env);
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}
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return chunks.map(function (c) { return c.join(''); });
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})([[]]);
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if (error) {
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return callback(new(LessError)(error, env));
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}
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// Start with the primary rule.
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// The whole syntax tree is held under a Ruleset node,
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// with the `root` property set to true, so no `{}` are
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// output. The callback is called when the input is parsed.
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try {
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root = new(tree.Ruleset)([], $(this.parsers.primary));
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root.root = true;
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root.firstRoot = true;
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} catch (e) {
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return callback(new(LessError)(e, env));
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}
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root.toCSS = (function (evaluate) {
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return function (options, variables) {
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options = options || {};
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var evaldRoot,
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css,
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evalEnv = new tree.evalEnv(options);
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//
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// Allows setting variables with a hash, so:
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//
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// `{ color: new(tree.Color)('#f01') }` will become:
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//
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// new(tree.Rule)('@color',
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// new(tree.Value)([
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// new(tree.Expression)([
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// new(tree.Color)('#f01')
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// ])
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// ])
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// )
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//
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if (typeof(variables) === 'object' && !Array.isArray(variables)) {
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variables = Object.keys(variables).map(function (k) {
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var value = variables[k];
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if (! (value instanceof tree.Value)) {
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if (! (value instanceof tree.Expression)) {
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value = new(tree.Expression)([value]);
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}
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value = new(tree.Value)([value]);
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}
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return new(tree.Rule)('@' + k, value, false, null, 0);
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});
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evalEnv.frames = [new(tree.Ruleset)(null, variables)];
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}
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try {
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evaldRoot = evaluate.call(this, evalEnv);
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new(tree.joinSelectorVisitor)()
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.run(evaldRoot);
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new(tree.processExtendsVisitor)()
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.run(evaldRoot);
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new(tree.toCSSVisitor)({compress: Boolean(options.compress)})
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.run(evaldRoot);
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if (options.sourceMap) {
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evaldRoot = new tree.sourceMapOutput(
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{
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writeSourceMap: options.writeSourceMap,
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rootNode: evaldRoot,
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contentsMap: parser.imports.contents,
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sourceMapFilename: options.sourceMapFilename,
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outputFilename: options.sourceMapOutputFilename,
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sourceMapBasepath: options.sourceMapBasepath,
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sourceMapRootpath: options.sourceMapRootpath,
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outputSourceFiles: options.outputSourceFiles,
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sourceMapGenerator: options.sourceMapGenerator
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});
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}
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css = evaldRoot.toCSS({
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compress: Boolean(options.compress),
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dumpLineNumbers: env.dumpLineNumbers,
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strictUnits: Boolean(options.strictUnits)});
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} catch (e) {
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throw new(LessError)(e, env);
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}
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if (options.cleancss && less.mode === 'node') {
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return require('clean-css').process(css);
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} else if (options.compress) {
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return css.replace(/(^(\s)+)|((\s)+$)/g, "");
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} else {
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return css;
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}
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};
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})(root.eval);
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|
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// If `i` is smaller than the `input.length - 1`,
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// it means the parser wasn't able to parse the whole
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// string, so we've got a parsing error.
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//
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// We try to extract a \n delimited string,
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// showing the line where the parse error occured.
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|
// We split it up into two parts (the part which parsed,
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// and the part which didn't), so we can color them differently.
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if (i < input.length - 1) {
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i = furthest;
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var loc = getLocation(i, input);
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lines = input.split('\n');
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line = loc.line + 1;
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error = {
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type: "Parse",
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message: "Unrecognised input",
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index: i,
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filename: env.currentFileInfo.filename,
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line: line,
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column: loc.column,
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extract: [
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lines[line - 2],
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lines[line - 1],
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lines[line]
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]
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};
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}
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|
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var finish = function (e) {
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e = error || e || parser.imports.error;
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|
|
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 > rule.selectors[j].elements.length) {
|
|
Array.prototype.push.apply(rules, rule.find(
|
|
new(tree.Selector)(selector.elements.slice(1)), 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 false;
|
|
} else {
|
|
for (i = 0; i < max; i++) {
|
|
if (elements[i].value !== oelements[i].value) {
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
return true;
|
|
},
|
|
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._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 sourceMapFilename,
|
|
sourceMapContent = JSON.stringify(this._sourceMapGenerator.toJSON());
|
|
|
|
if (this._sourceMapFilename) {
|
|
sourceMapFilename = this.normalizeFilename(this._sourceMapFilename);
|
|
}
|
|
|
|
if (this._writeSourceMap) {
|
|
this._writeSourceMap(sourceMapContent);
|
|
} else {
|
|
sourceMapFilename = "data:application/json," + encodeURIComponent(sourceMapContent);
|
|
}
|
|
|
|
if (sourceMapFilename) {
|
|
this._css.push("/*# sourceMappingURL=" + sourceMapFilename + " */");
|
|
}
|
|
}
|
|
|
|
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.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 = {};
|
|
|
|
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(/#.*$/, '');
|
|
if (newVars) {
|
|
env.useFileCache = true;
|
|
lessText += "\n" + newVars;
|
|
}
|
|
|
|
/*jshint loopfunc:true */
|
|
// use closure to store current value of i
|
|
var callback = (function(style) {
|
|
return function (e, cssAST) {
|
|
if (e) {
|
|
return error(e, "inline");
|
|
}
|
|
var css = cssAST.toCSS(less);
|
|
style.type = 'text/css';
|
|
if (style.styleSheet) {
|
|
style.styleSheet.cssText = css;
|
|
} else {
|
|
style.innerHTML = css;
|
|
}
|
|
};
|
|
})(style);
|
|
new(less.Parser)(env).parse(lessText, callback);
|
|
}
|
|
}
|
|
}
|
|
|
|
function extractUrlParts(url, baseUrl) {
|
|
// urlParts[1] = protocol&hostname || /
|
|
// urlParts[2] = / if path relative to host base
|
|
// urlParts[3] = directories
|
|
// urlParts[4] = filename
|
|
// urlParts[5] = parameters
|
|
|
|
var urlPartsRegex = /^((?:[a-z-]+:)?\/+?(?:[^\/\?#]*\/)|([\/\\]))?((?:[^\/\\\?#]*[\/\\])*)([^\/\\\?#]*)([#\?].*)?$/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) {
|
|
// 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) {
|
|
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;
|
|
}
|
|
}
|
|
|
|
//
|
|
// 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) {
|
|
var newVars = "";
|
|
for (var name in record) {
|
|
newVars += ((name.slice(0,1) === '@')? '' : '@') + name +': '+
|
|
((record[name].slice(-1) === ';')? record[name] : record[name] +';');
|
|
}
|
|
less.refresh(false, newVars);
|
|
};
|
|
|
|
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);
|
|
};
|
|
|
|
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); |