Skip to content

Instantly share code, notes, and snippets.

@frostney

frostney/less-1.3.0.js

Created March 14, 2012 22:28
Show Gist options
  • Save frostney/2040046 to your computer and use it in GitHub Desktop.
Save frostney/2040046 to your computer and use it in GitHub Desktop.
Download ZIP
Less 1.3.0 with being always set to production mode
Raw
less-1.3.0.js
//
// LESS - Leaner CSS v1.3.0
// http://lesscss.org
//
// Copyright (c) 2009-2011, Alexis Sellier
// Licensed under the Apache 2.0 License.
//
(function (window, undefined) {
//
// Stub out `require` in the browser
//
function require(arg) {
return window.less[arg.split('/')[1]];
};
// amd.js
//
// Define Less as an AMD module.
if (typeof define === "function" && define.amd) {
define("less", [], function () { return less; } );
}
// ecma-5.js
//
// -- kriskowal Kris Kowal Copyright (C) 2009-2010 MIT License
// -- tlrobinson Tom Robinson
// dantman Daniel Friesen
//
// Array
//
if (!Array.isArray) {
Array.isArray = function(obj) {
return Object.prototype.toString.call(obj) === "[object Array]" ||
(obj instanceof Array);
};
}
if (!Array.prototype.forEach) {
Array.prototype.forEach = function(block, thisObject) {
var len = this.length >>> 0;
for (var i = 0; i < len; i++) {
if (i in this) {
block.call(thisObject, this[i], i, this);
}
}
};
}
if (!Array.prototype.map) {
Array.prototype.map = function(fun /*, thisp*/) {
var len = this.length >>> 0;
var res = new Array(len);
var thisp = arguments[1];
for (var i = 0; i < len; i++) {
if (i in this) {
res[i] = fun.call(thisp, this[i], i, this);
}
}
return res;
};
}
if (!Array.prototype.filter) {
Array.prototype.filter = function (block /*, thisp */) {
var values = [];
var thisp = arguments[1];
for (var i = 0; i < this.length; i++) {
if (block.call(thisp, this[i])) {
values.push(this[i]);
}
}
return values;
};
}
if (!Array.prototype.reduce) {
Array.prototype.reduce = function(fun /*, initial*/) {
var len = this.length >>> 0;
var i = 0;
// no value to return if no initial value and an empty array
if (len === 0 && arguments.length === 1) throw new TypeError();
if (arguments.length >= 2) {
var rv = arguments[1];
} else {
do {
if (i in this) {
rv = this[i++];
break;
}
// if array contains no values, no initial value to return
if (++i >= len) throw new TypeError();
} while (true);
}
for (; i < len; i++) {
if (i in this) {
rv = fun.call(null, rv, this[i], i, this);
}
}
return rv;
};
}
if (!Array.prototype.indexOf) {
Array.prototype.indexOf = function (value /*, fromIndex */ ) {
var length = this.length;
var i = arguments[1] || 0;
if (!length) return -1;
if (i >= length) return -1;
if (i < 0) i += length;
for (; i < length; i++) {
if (!Object.prototype.hasOwnProperty.call(this, i)) { continue }
if (value === this[i]) return i;
}
return -1;
};
}
//
// Object
//
if (!Object.keys) {
Object.keys = function (object) {
var keys = [];
for (var name in object) {
if (Object.prototype.hasOwnProperty.call(object, name)) {
keys.push(name);
}
}
return keys;
};
}
//
// String
//
if (!String.prototype.trim) {
String.prototype.trim = function () {
return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, '');
};
}
var less, tree;
if (typeof environment === "object" && ({}).toString.call(environment) === "[object Environment]") {
// Rhino
// Details on how to detect Rhino: https://github.com/ringo/ringojs/issues/88
if (typeof(window) === 'undefined') { less = {} }
else { less = window.less = {} }
tree = less.tree = {};
less.mode = 'rhino';
} else if (typeof(window) === 'undefined') {
// Node.js
less = exports,
tree = require('./tree');
less.mode = 'node';
} else {
// Browser
if (typeof(window.less) === 'undefined') { window.less = {} }
less = window.less,
tree = window.less.tree = {};
less.mode = 'browser';
}
//
// less.js - parser
//
// A relatively straight-forward predictive parser.
// There is no tokenization/lexing stage, the input is parsed
// in one sweep.
//
// To make the parser fast enough to run in the browser, several
// optimization had to be made:
//
// - Matching and slicing on a huge input is often cause of slowdowns.
// The solution is to chunkify the input into smaller strings.
// The chunks are stored in the `chunks` var,
// `j` holds the current chunk index, and `current` holds
// the index of the current chunk in relation to `input`.
// This gives us an almost 4x speed-up.
//
// - In many cases, we don't need to match individual tokens;
// for example, if a value doesn't hold any variables, operations
// or dynamic references, the parser can effectively 'skip' it,
// treating it as a literal.
// An example would be '1px solid #000' - which evaluates to itself,
// we don't need to know what the individual components are.
// The drawback, of course is that you don't get the benefits of
// syntax-checking on the CSS. This gives us a 50% speed-up in the parser,
// and a smaller speed-up in the code-gen.
//
//
// Token matching is done with the `$` function, which either takes
// a terminal string or regexp, or a non-terminal function to call.
// It also takes care of moving all the indices forwards.
//
//
less.Parser = function Parser(env) {
var input, // LeSS input string
i, // current index in `input`
j, // current chunk
temp, // temporarily holds a chunk's state, for backtracking
memo, // temporarily holds `i`, when backtracking
furthest, // furthest index the parser has gone to
chunks, // chunkified input
current, // index of current chunk, in `input`
parser;
var that = this;
// This function is called after all files
// have been imported through `@import`.
var finish = function () {};
var imports = this.imports = {
paths: env && env.paths || [], // Search paths, when importing
queue: [], // Files which haven't been imported yet
files: {}, // Holds the imported parse trees
contents: {}, // Holds the imported file contents
mime: env && env.mime, // MIME type of .less files
error: null, // Error in parsing/evaluating an import
push: function (path, callback) {
var that = this;
this.queue.push(path);
//
// Import a file asynchronously
//
less.Parser.importer(path, this.paths, function (e, root, contents) {
that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue
that.files[path] = root; // Store the root
that.contents[path] = contents;
if (e && !that.error) { that.error = e }
callback(e, root);
if (that.queue.length === 0) { finish() } // Call `finish` if we're done importing
}, env);
}
};
function save() { temp = chunks[j], memo = i, current = i }
function restore() { chunks[j] = temp, i = memo, current = i }
function sync() {
if (i > current) {
chunks[j] = chunks[j].slice(i - current);
current = i;
}
}
//
// Parse from a token, regexp or string, and move forward if match
//
function $(tok) {
var match, args, length, c, index, endIndex, k, mem;
//
// Non-terminal
//
if (tok instanceof Function) {
return tok.call(parser.parsers);
//
// Terminal
//
// Either match a single character in the input,
// or match a regexp in the current chunk (chunk[j]).
//
} else if (typeof(tok) === 'string') {
match = input.charAt(i) === tok ? tok : null;
length = 1;
sync ();
} else {
sync ();
if (match = tok.exec(chunks[j])) {
length = match[0].length;
} else {
return null;
}
}
// The match is confirmed, add the match length to `i`,
// and consume any extra white-space characters (' ' || '\n')
// which come after that. The reason for this is that LeSS's
// grammar is mostly white-space insensitive.
//
if (match) {
mem = i += length;
endIndex = i + chunks[j].length - length;
while (i < endIndex) {
c = input.charCodeAt(i);
if (! (c === 32 || c === 10 || c === 9)) { break }
i++;
}
chunks[j] = chunks[j].slice(length + (i - mem));
current = i;
if (chunks[j].length === 0 && j < chunks.length - 1) { j++ }
if(typeof(match) === 'string') {
return match;
} else {
return match.length === 1 ? match[0] : match;
}
}
}
function expect(arg, msg) {
var result = $(arg);
if (! result) {
error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'"
: "unexpected token"));
} else {
return result;
}
}
function error(msg, type) {
throw { index: i, type: type || 'Syntax', message: msg };
}
// Same as $(), but don't change the state of the parser,
// just return the match.
function peek(tok) {
if (typeof(tok) === 'string') {
return input.charAt(i) === tok;
} else {
if (tok.test(chunks[j])) {
return true;
} else {
return false;
}
}
}
function basename(pathname) {
if (less.mode === 'node') {
return require('path').basename(pathname);
} else {
return pathname.match(/[^\/]+$/)[0];
}
}
function getInput(e, env) {
if (e.filename && env.filename && (e.filename !== env.filename)) {
return parser.imports.contents[basename(e.filename)];
} else {
return input;
}
}
function getLocation(index, input) {
for (var n = index, column = -1;
n >= 0 && input.charAt(n) !== '\n';
n--) { column++ }
return { line: typeof(index) === 'number' ? (input.slice(0, index).match(/\n/g) || "").length : null,
column: column };
}
function LessError(e, env) {
var input = getInput(e, env),
loc = getLocation(e.index, input),
line = loc.line,
col = loc.column,
lines = input.split('\n');
this.type = e.type || 'Syntax';
this.message = e.message;
this.filename = e.filename || env.filename;
this.index = e.index;
this.line = typeof(line) === 'number' ? line + 1 : null;
this.callLine = e.call && (getLocation(e.call, input).line + 1);
this.callExtract = lines[getLocation(e.call, input).line];
this.stack = e.stack;
this.column = col;
this.extract = [
lines[line - 1],
lines[line],
lines[line + 1]
];
}
this.env = env = env || {};
// The optimization level dictates the thoroughness of the parser,
// the lower the number, the less nodes it will create in the tree.
// This could matter for debugging, or if you want to access
// the individual nodes in the tree.
this.optimization = ('optimization' in this.env) ? this.env.optimization : 1;
this.env.filename = this.env.filename || null;
//
// The Parser
//
return parser = {
imports: imports,
//
// Parse an input string into an abstract syntax tree,
// call `callback` when done.
//
parse: function (str, callback) {
var root, start, end, zone, line, lines, buff = [], c, error = null;
i = j = current = furthest = 0;
input = str.replace(/\r\n/g, '\n');
// Split the input into chunks.
chunks = (function (chunks) {
var j = 0,
skip = /[^"'`\{\}\/\(\)\\]+/g,
comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g,
string = /"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'|`((?:[^`\\\r\n]|\\.)*)`/g,
level = 0,
match,
chunk = chunks[0],
inParam;
for (var i = 0, c, cc; i < input.length; i++) {
skip.lastIndex = i;
if (match = skip.exec(input)) {
if (match.index === i) {
i += match[0].length;
chunk.push(match[0]);
}
}
c = input.charAt(i);
comment.lastIndex = string.lastIndex = i;
if (match = string.exec(input)) {
if (match.index === i) {
i += match[0].length;
chunk.push(match[0]);
c = input.charAt(i);
}
}
if (!inParam && c === '/') {
cc = input.charAt(i + 1);
if (cc === '/' || cc === '*') {
if (match = comment.exec(input)) {
if (match.index === i) {
i += match[0].length;
chunk.push(match[0]);
c = input.charAt(i);
}
}
}
}
switch (c) {
case '{': if (! inParam) { level ++; chunk.push(c); break }
case '}': if (! inParam) { level --; chunk.push(c); chunks[++j] = chunk = []; break }
case '(': if (! inParam) { inParam = true; chunk.push(c); break }
case ')': if ( inParam) { inParam = false; chunk.push(c); break }
default: chunk.push(c);
}
}
if (level > 0) {
error = new(LessError)({
index: i,
type: 'Parse',
message: "missing closing `}`",
filename: env.filename
}, env);
}
return chunks.map(function (c) { return c.join('') });;
})([[]]);
if (error) {
return callback(error);
}
// Start with the primary rule.
// The whole syntax tree is held under a Ruleset node,
// with the `root` property set to true, so no `{}` are
// output. The callback is called when the input is parsed.
try {
root = new(tree.Ruleset)([], $(this.parsers.primary));
root.root = true;
} catch (e) {
return callback(new(LessError)(e, env));
}
root.toCSS = (function (evaluate) {
var line, lines, column;
return function (options, variables) {
var frames = [], importError;
options = options || {};
//
// Allows setting variables with a hash, so:
//
// `{ color: new(tree.Color)('#f01') }` will become:
//
// new(tree.Rule)('@color',
// new(tree.Value)([
// new(tree.Expression)([
// new(tree.Color)('#f01')
// ])
// ])
// )
//
if (typeof(variables) === 'object' && !Array.isArray(variables)) {
variables = Object.keys(variables).map(function (k) {
var value = variables[k];
if (! (value instanceof tree.Value)) {
if (! (value instanceof tree.Expression)) {
value = new(tree.Expression)([value]);
}
value = new(tree.Value)([value]);
}
return new(tree.Rule)('@' + k, value, false, 0);
});
frames = [new(tree.Ruleset)(null, variables)];
}
try {
var css = evaluate.call(this, { frames: frames })
.toCSS([], { compress: options.compress || false });
} catch (e) {
throw new(LessError)(e, env);
}
if ((importError = parser.imports.error)) { // Check if there was an error during importing
if (importError instanceof LessError) throw importError;
else throw new(LessError)(importError, env);
}
if (options.yuicompress && less.mode === 'node') {
return require('./cssmin').compressor.cssmin(css);
} else if (options.compress) {
return css.replace(/(\s)+/g, "$1");
} else {
return css;
}
};
})(root.eval);
// If `i` is smaller than the `input.length - 1`,
// it means the parser wasn't able to parse the whole
// string, so we've got a parsing error.
//
// We try to extract a \n delimited string,
// showing the line where the parse error occured.
// We split it up into two parts (the part which parsed,
// and the part which didn't), so we can color them differently.
if (i < input.length - 1) {
i = furthest;
lines = input.split('\n');
line = (input.slice(0, i).match(/\n/g) || "").length + 1;
for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ }
error = {
type: "Parse",
message: "Syntax Error on line " + line,
index: i,
filename: env.filename,
line: line,
column: column,
extract: [
lines[line - 2],
lines[line - 1],
lines[line]
]
};
}
if (this.imports.queue.length > 0) {
finish = function () { callback(error, root) };
} else {
callback(error, root);
}
},
//
// Here in, the parsing rules/functions
//
// The basic structure of the syntax tree generated is as follows:
//
// Ruleset -> Rule -> Value -> Expression -> Entity
//
// Here's some LESS code:
//
// .class {
// color: #fff;
// border: 1px solid #000;
// width: @w + 4px;
// > .child {...}
// }
//
// And here's what the parse tree might look like:
//
// Ruleset (Selector '.class', [
// Rule ("color", Value ([Expression [Color #fff]]))
// Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]]))
// Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]]))
// Ruleset (Selector [Element '>', '.child'], [...])
// ])
//
// In general, most rules will try to parse a token with the `$()` 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.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);
} else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) {
return new(tree.Comment)(comment);
}
},
//
// 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;
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);
}
},
//
// A catch-all word, such as:
//
// black border-collapse
//
keyword: function () {
var k;
if (k = $(/^[_A-Za-z-][_A-Za-z0-9-]*/)) {
if (tree.colors.hasOwnProperty(k)) {
// detect named color
return new(tree.Color)(tree.colors[k].slice(1));
} else {
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, args, index = i;
if (! (name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(chunks[j]))) return;
name = name[1].toLowerCase();
if (name === 'url') { return null }
else { i += name.length }
if (name === 'alpha') { return $(this.alpha) }
$('('); // Parse the '(' and consume whitespace.
args = $(this.entities.arguments);
if (! $(')')) return;
if (name) { return new(tree.Call)(name, args, index, env.filename) }
},
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);
},
// 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) ||
$(this.entities.dataURI) || $(/^[-\w%@$\/.&=:;#+?~]+/) || "";
expect(')');
return new(tree.URL)((value.value || value.data || value instanceof tree.Variable)
? value : new(tree.Anonymous)(value), imports.paths);
},
dataURI: function () {
var obj;
if ($(/^data:/)) {
obj = {};
obj.mime = $(/^[^\/]+\/[^,;)]+/) || '';
obj.charset = $(/^;\s*charset=[^,;)]+/) || '';
obj.base64 = $(/^;\s*base64/) || '';
obj.data = $(/^,\s*[^)]+/);
if (obj.data) { return obj }
}
},
//
// 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.filename);
}
},
//
// 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);
if ((c > 57 || c < 45) || c === 47) return;
if (value = $(/^(-?\d*\.?\d+)(px|%|em|rem|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn)?/)) {
return new(tree.Dimension)(value[1], value[2]);
}
},
//
// 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 }
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] }
},
//
// A font size/line-height shorthand
//
// small/12px
//
// We need to peek first, or we'll match on keywords and dimensions
//
shorthand: function () {
var a, b;
if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return;
if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) {
return new(tree.Shorthand)(a, b);
}
},
//
// 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 }
while (e = $(/^[#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/)) {
elements.push(new(tree.Element)(c, e, i));
c = $('>');
}
$('(') && (args = $(this.entities.arguments)) && $(')');
if ($(this.important)) {
important = true;
}
if (elements.length > 0 && ($(';') || peek('}'))) {
return new(tree.mixin.Call)(elements, args || [], index, env.filename, important);
}
},
//
// 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, param, value, 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];
do {
if (input.charAt(i) === '.' && $(/^\.{3}/)) {
variadic = true;
break;
} else if (param = $(this.entities.variable) || $(this.entities.literal)
|| $(this.entities.keyword)) {
// Variable
if (param instanceof tree.Variable) {
if ($(':')) {
value = expect(this.expression, 'expected expression');
params.push({ name: param.name, value: value });
} else if ($(/^\.{3}/)) {
params.push({ name: param.name, variadic: true });
variadic = true;
break;
} else {
params.push({ name: param.name });
}
} else {
params.push({ value: param });
}
} else {
break;
}
} while ($(','))
expect(')');
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, t, c, v;
c = $(this.combinator);
e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/) ||
$('*') || $(this.attribute) || $(/^\([^)@]+\)/);
if (! e) {
$('(') && (v = $(this.entities.variable)) && $(')') && (e = new(tree.Paren)(v));
}
if (e) { return new(tree.Element)(c, e, i) }
if (c.value && c.value.charAt(0) === '&') {
return new(tree.Element)(c, null, i);
}
},
//
// Combinators combine elements together, in a Selector.
//
// Because our parser isn't white-space sensitive, special care
// has to be taken, when parsing the descendant combinator, ` `,
// as it's an empty space. We have to check the previous character
// in the input, to see if it's a ` ` character. More info on how
// we deal with this in *combinator.js*.
//
combinator: function () {
var match, c = input.charAt(i);
if (c === '>' || c === '+' || c === '~') {
i++;
while (input.charAt(i) === ' ') { i++ }
return new(tree.Combinator)(c);
} else if (c === '&') {
match = '&';
i++;
if(input.charAt(i) === ' ') {
match = '& ';
}
while (input.charAt(i) === ' ') { i++ }
return new(tree.Combinator)(match);
} else if (input.charAt(i - 1) === ' ') {
return new(tree.Combinator)(" ");
} else {
return new(tree.Combinator)(null);
}
},
//
// A CSS Selector
//
// .class > div + h1
// li a:hover
//
// Selectors are made out of one or more Elements, see above.
//
selector: function () {
var sel, e, elements = [], c, match;
if ($('(')) {
sel = $(this.entity);
expect(')');
return new(tree.Selector)([new(tree.Element)('', sel, i)]);
}
while (e = $(this.element)) {
c = input.charAt(i);
elements.push(e)
if (c === '{' || c === '}' || c === ';' || c === ',') { break }
}
if (elements.length > 0) { return new(tree.Selector)(elements) }
},
tag: function () {
return $(/^[a-zA-Z][a-zA-Z-]*[0-9]?/) || $('*');
},
attribute: function () {
var attr = '', key, val, op;
if (! $('[')) return;
if (key = $(/^[a-zA-Z-]+/) || $(this.entities.quoted)) {
if ((op = $(/^[|~*$^]?=/)) &&
(val = $(this.entities.quoted) || $(/^[\w-]+/))) {
attr = [key, op, val.toCSS ? val.toCSS() : val].join('');
} else { attr = key }
}
if (! $(']')) return;
if (attr) { return "[" + attr + "]" }
},
//
// The `block` rule is used by `ruleset` and `mixin.definition`.
// It's a wrapper around the `primary` rule, with added `{}`.
//
block: function () {
var content;
if ($('{') && (content = $(this.primary)) && $('}')) {
return content;
}
},
//
// div, .class, body > p {...}
//
ruleset: function () {
var selectors = [], s, rules, match;
save();
while (s = $(this.selector)) {
selectors.push(s);
$(this.comment);
if (! $(',')) { break }
$(this.comment);
}
if (selectors.length > 0 && (rules = $(this.block))) {
return new(tree.Ruleset)(selectors, rules, env.strictImports);
} else {
// Backtrack
furthest = i;
restore();
}
},
rule: function () {
var name, value, c = input.charAt(i), important, match;
save();
if (c === '.' || c === '#' || c === '&') { return }
if (name = $(this.variable) || $(this.property)) {
if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) {
i += match[0].length - 1;
value = new(tree.Anonymous)(match[1]);
} else if (name === "font") {
value = $(this.font);
} else {
value = $(this.value);
}
important = $(this.important);
if (value && $(this.end)) {
return new(tree.Rule)(name, value, important, memo);
} else {
furthest = i;
restore();
}
}
},
//
// An @import directive
//
// @import "lib";
//
// Depending on our environemnt, importing is done differently:
// In the browser, it's an XHR request, in Node, it would be a
// file-system operation. The function used for importing is
// stored in `import`, which we pass to the Import constructor.
//
"import": function () {
var path, features, index = i;
if ($(/^@import\s+/) &&
(path = $(this.entities.quoted) || $(this.entities.url))) {
features = $(this.mediaFeatures);
if ($(';')) {
return new(tree.Import)(path, imports, features, index);
}
}
},
mediaFeature: function () {
var e, p, nodes = [];
do {
if (e = $(this.entities.keyword)) {
nodes.push(e);
} else if ($('(')) {
p = $(this.property);
e = $(this.entity);
if ($(')')) {
if (p && e) {
nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, i, 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 (! $(',')) { break }
}
} while (e);
return features.length > 0 ? features : null;
},
media: function () {
var features, rules;
if ($(/^@media/)) {
features = $(this.mediaFeatures);
if (rules = $(this.block)) {
return new(tree.Media)(rules, features);
}
}
},
//
// A CSS Directive
//
// @charset "utf-8";
//
directive: function () {
var name, value, rules, types, e, nodes;
if (input.charAt(i) !== '@') return;
if (value = $(this['import']) || $(this.media)) {
return value;
} else if (name = $(/^@page|@keyframes/) || $(/^@(?:-webkit-|-moz-|-o-|-ms-)[a-z0-9-]+/)) {
types = ($(/^[^{]+/) || '').trim();
if (rules = $(this.block)) {
return new(tree.Directive)(name + " " + types, rules);
}
} else if (name = $(/^@[-a-z]+/)) {
if (name === '@font-face') {
if (rules = $(this.block)) {
return new(tree.Directive)(name, rules);
}
} else if ((value = $(this.entity)) && $(';')) {
return new(tree.Directive)(name, value);
}
}
},
font: function () {
var value = [], expression = [], weight, shorthand, font, e;
while (e = $(this.shorthand) || $(this.entity)) {
expression.push(e);
}
value.push(new(tree.Expression)(expression));
if ($(',')) {
while (e = $(this.expression)) {
value.push(e);
if (! $(',')) { break }
}
}
return new(tree.Value)(value);
},
//
// 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 = [], important;
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 $(/^! *important/);
}
},
sub: function () {
var e;
if ($('(') && (e = $(this.expression)) && $(')')) {
return e;
}
},
multiplication: function () {
var m, a, op, operation;
if (m = $(this.operand)) {
while (!peek(/^\/\*/) && (op = ($('/') || $('*'))) && (a = $(this.operand))) {
operation = new(tree.Operation)(op, [operation || m, a]);
}
return operation || m;
}
},
addition: function () {
var m, a, op, operation;
if (m = $(this.multiplication)) {
while ((op = $(/^[-+]\s+/) || (input.charAt(i - 1) != ' ' && ($('+') || $('-')))) &&
(a = $(this.multiplication))) {
operation = new(tree.Operation)(op, [operation || m, a]);
}
return operation || m;
}
},
conditions: function () {
var a, b, index = i, condition;
if (a = $(this.condition)) {
while ($(',') && (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);
return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o])
: o;
},
//
// Expressions either represent mathematical operations,
// or white-space delimited Entities.
//
// 1px solid black
// @var * 2
//
expression: function () {
var e, delim, entities = [], d;
while (e = $(this.addition) || $(this.entity)) {
entities.push(e);
}
if (entities.length > 0) {
return new(tree.Expression)(entities);
}
},
property: function () {
var name;
if (name = $(/^(\*?-?[-a-z_0-9]+)\s*:/)) {
return name[1];
}
}
}
};
};
if (less.mode === 'browser' || less.mode === 'rhino') {
//
// Used by `@import` directives
//
less.Parser.importer = function (path, paths, callback, env) {
if (!/^([a-z]+:)?\//.test(path) && paths.length > 0) {
path = paths[0] + path;
}
// We pass `true` as 3rd argument, to force the reload of the import.
// This is so we can get the syntax tree as opposed to just the CSS output,
// as we need this to evaluate the current stylesheet.
loadStyleSheet({ href: path, title: path, type: env.mime }, function (e) {
if (e && typeof(env.errback) === "function") {
env.errback.call(null, path, paths, callback, env);
} else {
callback.apply(null, arguments);
}
}, true);
};
}
(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 number(c) }),
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) {
h = (number(h) % 360) / 360;
s = number(s); l = number(l); a = 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);
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;
}
},
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), '%');
},
alpha: function (color) {
return new(tree.Dimension)(color.toHSL().a);
},
saturate: function (color, amount) {
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) {
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));
},
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++) {
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);
},
round: function (n) {
return this._math('round', n);
},
ceil: function (n) {
return this._math('ceil', n);
},
floor: function (n) {
return this._math('floor', n);
},
_math: function (fn, n) {
if (n instanceof tree.Dimension) {
return new(tree.Dimension)(Math[fn](number(n)), n.unit);
} else if (typeof(n) === 'number') {
return Math[fn](n);
} else {
throw { type: "Argument", message: "argument must be a number" };
}
},
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) {
return new(tree.Color)(n.value.slice(1));
} 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 (n instanceof tree.Dimension) && n.unit === 'px' ? tree.True : tree.False;
},
ispercentage: function (n) {
return (n instanceof tree.Dimension) && n.unit === '%' ? tree.True : tree.False;
},
isem: function (n) {
return (n instanceof tree.Dimension) && n.unit === 'em' ? tree.True : tree.False;
},
_isa: function (n, Type) {
return (n instanceof Type) ? tree.True : tree.False;
}
};
function hsla(hsla) {
return tree.functions.hsla(hsla.h, hsla.s, hsla.l, hsla.a);
}
function number(n) {
if (n instanceof tree.Dimension) {
return parseFloat(n.unit == '%' ? 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));
}
})(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.Alpha = function (val) {
this.value = val;
};
tree.Alpha.prototype = {
toCSS: function () {
return "alpha(opacity=" +
(this.value.toCSS ? this.value.toCSS() : this.value) + ")";
},
eval: function (env) {
if (this.value.eval) { this.value = this.value.eval(env) }
return this;
}
};
})(require('../tree'));
(function (tree) {
tree.Anonymous = function (string) {
this.value = string.value || string;
};
tree.Anonymous.prototype = {
toCSS: function () {
return this.value;
},
eval: function () { return this }
};
})(require('../tree'));
(function (tree) {
tree.Assignment = function (key, val) {
this.key = key;
this.value = val;
};
tree.Assignment.prototype = {
toCSS: function () {
return this.key + '=' + (this.value.toCSS ? this.value.toCSS() : this.value);
},
eval: function (env) {
if (this.value.eval) { this.value = this.value.eval(env) }
return this;
}
};
})(require('../tree'));(function (tree) {
//
// A function call node.
//
tree.Call = function (name, args, index, filename) {
this.name = name;
this.args = args;
this.index = index;
this.filename = filename;
};
tree.Call.prototype = {
//
// When evaluating a function call,
// we either find the function in `tree.functions` [1],
// in which case we call it, passing the evaluated arguments,
// or 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) });
if (this.name in tree.functions) { // 1.
try {
return tree.functions[this.name].apply(tree.functions, args);
} catch (e) {
throw { type: e.type || "Runtime",
message: "error evaluating function `" + this.name + "`" +
(e.message ? ': ' + e.message : ''),
index: this.index, filename: this.filename };
}
} else { // 2.
return new(tree.Anonymous)(this.name +
"(" + args.map(function (a) { return a.toCSS() }).join(', ') + ")");
}
},
toCSS: function (env) {
return this.eval(env).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;
};
tree.Color.prototype = {
eval: function () { return this },
//
// 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.
//
toCSS: function () {
if (this.alpha < 1.0) {
return "rgba(" + this.rgb.map(function (c) {
return Math.round(c);
}).concat(this.alpha).join(', ') + ")";
} else {
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('');
}
},
//
// 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 (op, other) {
var result = [];
if (! (other instanceof tree.Color)) {
other = other.toColor();
}
for (var c = 0; c < 3; c++) {
result[c] = tree.operate(op, this.rgb[c], other.rgb[c]);
}
return new(tree.Color)(result, this.alpha + other.alpha);
},
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 };
},
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('');
}
};
})(require('../tree'));
(function (tree) {
tree.Comment = function (value, silent) {
this.value = value;
this.silent = !!silent;
};
tree.Comment.prototype = {
toCSS: function (env) {
return env.compress ? '' : this.value;
},
eval: function () { return this }
};
})(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.eval = function (env) {
var a = this.lvalue.eval(env),
b = this.rvalue.eval(env);
var i = this.index, result;
var 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 === '=<';
case 0: return 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 || null;
};
tree.Dimension.prototype = {
eval: function () { return this },
toColor: function () {
return new(tree.Color)([this.value, this.value, this.value]);
},
toCSS: function () {
var css = this.value + this.unit;
return css;
},
// In an operation between two Dimensions,
// we default to the first Dimension's unit,
// so `1px + 2em` will yield `3px`.
// In the future, we could implement some unit
// conversions such that `100cm + 10mm` would yield
// `101cm`.
operate: function (op, other) {
return new(tree.Dimension)
(tree.operate(op, this.value, other.value),
this.unit || other.unit);
},
// TODO: Perform unit conversion before comparing
compare: function (other) {
if (other instanceof tree.Dimension) {
if (other.value > this.value) {
return -1;
} else if (other.value < this.value) {
return 1;
} else {
return 0;
}
} else {
return -1;
}
}
};
})(require('../tree'));
(function (tree) {
tree.Directive = function (name, value, features) {
this.name = name;
if (Array.isArray(value)) {
this.ruleset = new(tree.Ruleset)([], value);
this.ruleset.allowImports = true;
} else {
this.value = value;
}
};
tree.Directive.prototype = {
toCSS: function (ctx, env) {
if (this.ruleset) {
this.ruleset.root = true;
return this.name + (env.compress ? '{' : ' {\n ') +
this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') +
(env.compress ? '}': '\n}\n');
} else {
return this.name + ' ' + this.value.toCSS() + ';\n';
}
},
eval: function (env) {
env.frames.unshift(this);
this.ruleset = this.ruleset && this.ruleset.eval(env);
env.frames.shift();
return this;
},
variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) },
find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) },
rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) }
};
})(require('../tree'));
(function (tree) {
tree.Element = function (combinator, value, index) {
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;
};
tree.Element.prototype.eval = function (env) {
return new(tree.Element)(this.combinator,
this.value.eval ? this.value.eval(env) : this.value,
this.index);
};
tree.Element.prototype.toCSS = function (env) {
return this.combinator.toCSS(env || {}) + (this.value.toCSS ? this.value.toCSS(env) : this.value);
};
tree.Combinator = function (value) {
if (value === ' ') {
this.value = ' ';
} else if (value === '& ') {
this.value = '& ';
} else {
this.value = value ? value.trim() : "";
}
};
tree.Combinator.prototype.toCSS = function (env) {
return {
'' : '',
' ' : ' ',
'&' : '',
'& ' : ' ',
':' : ' :',
'+' : env.compress ? '+' : ' + ',
'~' : env.compress ? '~' : ' ~ ',
'>' : env.compress ? '>' : ' > '
}[this.value];
};
})(require('../tree'));
(function (tree) {
tree.Expression = function (value) { this.value = value };
tree.Expression.prototype = {
eval: function (env) {
if (this.value.length > 1) {
return new(tree.Expression)(this.value.map(function (e) {
return e.eval(env);
}));
} else if (this.value.length === 1) {
return this.value[0].eval(env);
} else {
return this;
}
},
toCSS: function (env) {
return this.value.map(function (e) {
return e.toCSS ? e.toCSS(env) : '';
}).join(' ');
}
};
})(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, imports, features, index) {
var that = this;
this.index = index;
this._path = path;
this.features = features && new(tree.Value)(features);
// The '.less' extension is optional
if (path instanceof tree.Quoted) {
this.path = /\.(le?|c)ss(\?.*)?$/.test(path.value) ? path.value : path.value + '.less';
} else {
this.path = path.value.value || path.value;
}
this.css = /css(\?.*)?$/.test(this.path);
// Only pre-compile .less files
if (! this.css) {
imports.push(this.path, function (e, root) {
if (e) { e.index = index }
that.root = root || new(tree.Ruleset)([], []);
});
}
};
//
// 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 = {
toCSS: function (env) {
var features = this.features ? ' ' + this.features.toCSS(env) : '';
if (this.css) {
return "@import " + this._path.toCSS() + features + ';\n';
} else {
return "";
}
},
eval: function (env) {
var ruleset, features = this.features && this.features.eval(env);
if (this.css) {
return this;
} else {
ruleset = new(tree.Ruleset)([], this.root.rules.slice(0));
for (var i = 0; i < ruleset.rules.length; i++) {
if (ruleset.rules[i] instanceof tree.Import) {
Array.prototype
.splice
.apply(ruleset.rules,
[i, 1].concat(ruleset.rules[i].eval(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 = {
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: `" + expression + "`" ,
index: this.index };
}
for (var k in env.frames[0].variables()) {
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 = {
eval: function () { return this },
toCSS: function () { return this.value },
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) {
var el = new(tree.Element)('&', null, 0),
selectors = [new(tree.Selector)([el])];
this.features = new(tree.Value)(features);
this.ruleset = new(tree.Ruleset)(selectors, value);
this.ruleset.allowImports = true;
};
tree.Media.prototype = {
toCSS: function (ctx, env) {
var features = this.features.toCSS(env);
this.ruleset.root = (ctx.length === 0 || ctx[0].multiMedia);
return '@media ' + features + (env.compress ? '{' : ' {\n ') +
this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') +
(env.compress ? '}': '\n}\n');
},
eval: function (env) {
if (!env.mediaBlocks) {
env.mediaBlocks = [];
env.mediaPath = [];
}
var blockIndex = env.mediaBlocks.length;
env.mediaPath.push(this);
env.mediaBlocks.push(this);
var media = new(tree.Media)([], []);
media.features = this.features.eval(env);
env.frames.unshift(this.ruleset);
media.ruleset = this.ruleset.eval(env);
env.frames.shift();
env.mediaBlocks[blockIndex] = media;
env.mediaPath.pop();
return env.mediaPath.length === 0 ? media.evalTop(env) :
media.evalNested(env)
},
variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) },
find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) },
rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) },
evalTop: function (env) {
var result = this;
// Render all dependent Media blocks.
if (env.mediaBlocks.length > 1) {
var el = new(tree.Element)('&', null, 0);
var selectors = [new(tree.Selector)([el])];
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;
}
}
};
})(require('../tree'));
(function (tree) {
tree.mixin = {};
tree.mixin.Call = function (elements, args, index, filename, important) {
this.selector = new(tree.Selector)(elements);
this.arguments = args;
this.index = index;
this.filename = filename;
this.important = important;
};
tree.mixin.Call.prototype = {
eval: function (env) {
var mixins, args, rules = [], match = false;
for (var i = 0; i < env.frames.length; i++) {
if ((mixins = env.frames[i].find(this.selector)).length > 0) {
args = this.arguments && this.arguments.map(function (a) { return a.eval(env) });
for (var m = 0; m < mixins.length; m++) {
if (mixins[m].match(args, env)) {
try {
Array.prototype.push.apply(
rules, mixins[m].eval(env, this.arguments, this.important).rules);
match = true;
} catch (e) {
throw { message: e.message, index: this.index, filename: this.filename, stack: e.stack };
}
}
}
if (match) {
return rules;
} else {
throw { type: 'Runtime',
message: 'No matching definition was found for `' +
this.selector.toCSS().trim() + '(' +
this.arguments.map(function (a) {
return a.toCSS();
}).join(', ') + ")`",
index: this.index, filename: this.filename };
}
}
}
throw { type: 'Name',
message: this.selector.toCSS().trim() + " is undefined",
index: this.index, filename: this.filename };
}
};
tree.mixin.Definition = function (name, params, rules, condition, variadic) {
this.name = name;
this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])];
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 = {
toCSS: function () { return "" },
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, args) {
var frame = new(tree.Ruleset)(null, []), varargs;
for (var i = 0, val, name; i < this.params.length; i++) {
if (name = this.params[i].name) {
if (this.params[i].variadic && args) {
varargs = [];
for (var j = i; j < args.length; j++) {
varargs.push(args[j].eval(env));
}
frame.rules.unshift(new(tree.Rule)(name, new(tree.Expression)(varargs).eval(env)));
} else if (val = (args && args[i]) || this.params[i].value) {
frame.rules.unshift(new(tree.Rule)(name, val.eval(env)));
} else {
throw { type: 'Runtime', message: "wrong number of arguments for " + this.name +
' (' + args.length + ' for ' + this.arity + ')' };
}
}
}
return frame;
},
eval: function (env, args, important) {
var frame = this.evalParams(env, args), context, _arguments = [], rules, start;
for (var i = 0; i < Math.max(this.params.length, args && args.length); i++) {
_arguments.push(args[i] || this.params[i].value);
}
frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env)));
rules = important ?
this.rules.map(function (r) {
return new(tree.Rule)(r.name, r.value, '!important', r.index);
}) : this.rules.slice(0);
return new(tree.Ruleset)(null, rules).eval({
frames: [this, frame].concat(this.frames, env.frames)
});
},
match: function (args, env) {
var argsLength = (args && args.length) || 0, len, frame;
if (! this.variadic) {
if (argsLength < this.required) { return false }
if (argsLength > this.params.length) { return false }
if ((this.required > 0) && (argsLength > this.params.length)) { return false }
}
if (this.condition && !this.condition.eval({
frames: [this.evalParams(env, args)].concat(env.frames)
})) { return false }
len = Math.min(argsLength, this.arity);
for (var i = 0; i < len; i++) {
if (!this.params[i].name) {
if (args[i].eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) {
return false;
}
}
}
return true;
}
};
})(require('../tree'));
(function (tree) {
tree.Operation = function (op, operands) {
this.op = op.trim();
this.operands = operands;
};
tree.Operation.prototype.eval = function (env) {
var a = this.operands[0].eval(env),
b = this.operands[1].eval(env),
temp;
if (a instanceof tree.Dimension && b instanceof tree.Color) {
if (this.op === '*' || this.op === '+') {
temp = b, b = a, a = temp;
} else {
throw { name: "OperationError",
message: "Can't substract or divide a color from a number" };
}
}
return a.operate(this.op, b);
};
tree.operate = function (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 = {
toCSS: function (env) {
return '(' + this.value.toCSS(env) + ')';
},
eval: function (env) {
return new(tree.Paren)(this.value.eval(env));
}
};
})(require('../tree'));
(function (tree) {
tree.Quoted = function (str, content, escaped, i) {
this.escaped = escaped;
this.value = content || '';
this.quote = str.charAt(0);
this.index = i;
};
tree.Quoted.prototype = {
toCSS: function () {
if (this.escaped) {
return this.value;
} else {
return this.quote + this.value + this.quote;
}
},
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).eval(env);
return ('value' in v) ? v.value : v.toCSS();
});
return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index);
}
};
})(require('../tree'));
(function (tree) {
tree.Rule = function (name, value, important, index, inline) {
this.name = name;
this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]);
this.important = important ? ' ' + important.trim() : '';
this.index = index;
this.inline = inline || false;
if (name.charAt(0) === '@') {
this.variable = true;
} else { this.variable = false }
};
tree.Rule.prototype.toCSS = function (env) {
if (this.variable) { return "" }
else {
return this.name + (env.compress ? ':' : ': ') +
this.value.toCSS(env) +
this.important + (this.inline ? "" : ";");
}
};
tree.Rule.prototype.eval = function (context) {
return new(tree.Rule)(this.name,
this.value.eval(context),
this.important,
this.index, this.inline);
};
tree.Shorthand = function (a, b) {
this.a = a;
this.b = b;
};
tree.Shorthand.prototype = {
toCSS: function (env) {
return this.a.toCSS(env) + "/" + this.b.toCSS(env);
},
eval: function () { return this }
};
})(require('../tree'));
(function (tree) {
tree.Ruleset = function (selectors, rules, strictImports) {
this.selectors = selectors;
this.rules = rules;
this._lookups = {};
this.strictImports = strictImports;
};
tree.Ruleset.prototype = {
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);
ruleset.root = this.root;
ruleset.allowImports = this.allowImports;
// push the current ruleset to the frames stack
env.frames.unshift(ruleset);
// Evaluate imports
if (ruleset.root || ruleset.allowImports || !ruleset.strictImports) {
for (var i = 0; i < ruleset.rules.length; i++) {
if (ruleset.rules[i] instanceof tree.Import) {
Array.prototype.splice
.apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env)));
}
}
}
// Store the frames around mixin definitions,
// so they can be evaluated like closures when the time comes.
for (var i = 0; i < ruleset.rules.length; i++) {
if (ruleset.rules[i] instanceof tree.mixin.Definition) {
ruleset.rules[i].frames = env.frames.slice(0);
}
}
// Evaluate mixin calls.
for (var i = 0; i < ruleset.rules.length; i++) {
if (ruleset.rules[i] instanceof tree.mixin.Call) {
Array.prototype.splice
.apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env)));
}
}
// Evaluate everything else
for (var i = 0, rule; 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();
return ruleset;
},
match: function (args) {
return !args || args.length === 0;
},
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 () {
if (this._rulesets) { return this._rulesets }
else {
return this._rulesets = this.rules.filter(function (r) {
return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition);
});
}
},
find: function (selector, self) {
self = self || this;
var rules = [], rule, 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;
},
//
// Entry point for code generation
//
// `context` holds an array of arrays.
//
toCSS: function (context, env) {
var css = [], // The CSS output
rules = [], // node.Rule instances
rulesets = [], // node.Ruleset instances
paths = [], // Current selectors
selector, // The fully rendered selector
rule;
if (! this.root) {
if (context.length === 0) {
paths = this.selectors.map(function (s) { return [s] });
} else {
this.joinSelectors(paths, context, this.selectors);
}
}
// Compile rules and rulesets
for (var i = 0; i < this.rules.length; i++) {
rule = this.rules[i];
if (rule.rules || (rule instanceof tree.Directive) || (rule instanceof tree.Media)) {
rulesets.push(rule.toCSS(paths, env));
} else if (rule instanceof tree.Comment) {
if (!rule.silent) {
if (this.root) {
rulesets.push(rule.toCSS(env));
} else {
rules.push(rule.toCSS(env));
}
}
} else {
if (rule.toCSS && !rule.variable) {
rules.push(rule.toCSS(env));
} else if (rule.value && !rule.variable) {
rules.push(rule.value.toString());
}
}
}
rulesets = rulesets.join('');
// If this is the root node, we don't render
// a selector, or {}.
// Otherwise, only output if this ruleset has rules.
if (this.root) {
css.push(rules.join(env.compress ? '' : '\n'));
} else {
if (rules.length > 0) {
selector = paths.map(function (p) {
return p.map(function (s) {
return s.toCSS(env);
}).join('').trim();
}).join( env.compress ? ',' : ',\n');
css.push(selector,
(env.compress ? '{' : ' {\n ') +
rules.join(env.compress ? '' : '\n ') +
(env.compress ? '}' : '\n}\n'));
}
}
css.push(rulesets);
return css.join('') + (env.compress ? '\n' : '');
},
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 before = [], after = [], beforeElements = [],
afterElements = [], hasParentSelector = false, el;
for (var i = 0; i < selector.elements.length; i++) {
el = selector.elements[i];
if (el.combinator.value.charAt(0) === '&') {
hasParentSelector = true;
}
if (hasParentSelector) afterElements.push(el);
else beforeElements.push(el);
}
if (! hasParentSelector) {
afterElements = beforeElements;
beforeElements = [];
}
if (beforeElements.length > 0) {
before.push(new(tree.Selector)(beforeElements));
}
if (afterElements.length > 0) {
after.push(new(tree.Selector)(afterElements));
}
for (var c = 0; c < context.length; c++) {
paths.push(before.concat(context[c]).concat(after));
}
}
};
})(require('../tree'));
(function (tree) {
tree.Selector = function (elements) {
this.elements = elements;
if (this.elements[0].combinator.value === "") {
this.elements[0].combinator.value = ' ';
}
};
tree.Selector.prototype.match = function (other) {
var len = this.elements.length,
olen = other.elements.length,
max = Math.min(len, olen);
if (len < olen) {
return false;
} else {
for (var i = 0; i < max; i++) {
if (this.elements[i].value !== other.elements[i].value) {
return false;
}
}
}
return true;
};
tree.Selector.prototype.eval = function (env) {
return new(tree.Selector)(this.elements.map(function (e) {
return e.eval(env);
}));
};
tree.Selector.prototype.toCSS = function (env) {
if (this._css) { return this._css }
return this._css = this.elements.map(function (e) {
if (typeof(e) === 'string') {
return ' ' + e.trim();
} else {
return e.toCSS(env);
}
}).join('');
};
})(require('../tree'));
(function (tree) {
tree.URL = function (val, paths) {
if (val.data) {
this.attrs = val;
} else {
// Add the base path if the URL is relative and we are in the browser
if (typeof(window) !== 'undefined' && !/^(?:https?:\/\/|file:\/\/|data:|\/)/.test(val.value) && paths.length > 0) {
val.value = paths[0] + (val.value.charAt(0) === '/' ? val.value.slice(1) : val.value);
}
this.value = val;
this.paths = paths;
}
};
tree.URL.prototype = {
toCSS: function () {
return "url(" + (this.attrs ? 'data:' + this.attrs.mime + this.attrs.charset + this.attrs.base64 + this.attrs.data
: this.value.toCSS()) + ")";
},
eval: function (ctx) {
return this.attrs ? this : new(tree.URL)(this.value.eval(ctx), this.paths);
}
};
})(require('../tree'));
(function (tree) {
tree.Value = function (value) {
this.value = value;
this.is = 'value';
};
tree.Value.prototype = {
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);
}));
}
},
toCSS: function (env) {
return this.value.map(function (e) {
return e.toCSS(env);
}).join(env.compress ? ',' : ', ');
}
};
})(require('../tree'));
(function (tree) {
tree.Variable = function (name, index, file) { this.name = name, this.index = index, this.file = file };
tree.Variable.prototype = {
eval: function (env) {
var variable, v, name = this.name;
if (name.indexOf('@@') == 0) {
name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value;
}
if (variable = tree.find(env.frames, function (frame) {
if (v = frame.variable(name)) {
return v.value.eval(env);
}
})) { return variable }
else {
throw { type: 'Name',
message: "variable " + name + " is undefined",
filename: this.file,
index: this.index };
}
}
};
})(require('../tree'));
(function (tree) {
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);
}
};
})(require('./tree'));
//
// browser.js - client-side engine
//
var isFileProtocol = (location.protocol === 'file:' ||
location.protocol === 'chrome:' ||
location.protocol === 'chrome-extension:' ||
location.protocol === 'resource:');
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');
// Stoney "Fix": Set to production
less.env = 'production';
// 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 = false;
// Interval between watch polls
less.poll = less.poll || (isFileProtocol ? 1000 : 1500);
//
// Watch mode
//
less.watch = function () { return this.watchMode = true };
less.unwatch = function () { return this.watchMode = false };
if (less.env === 'development') {
less.optimization = 0;
if (/!watch/.test(location.hash)) {
less.watch();
}
less.watchTimer = setInterval(function () {
if (less.watchMode) {
loadStyleSheets(function (e, root, _, sheet, env) {
if (root) {
createCSS(root.toCSS(), sheet, env.lastModified);
}
});
}
}, less.poll);
} else {
less.optimization = 3;
}
var cache;
try {
cache = (typeof(window.localStorage) === 'undefined') ? null : window.localStorage;
} catch (_) {
cache = null;
}
//
// Get all <link> tags with the 'rel' attribute set to "stylesheet/less"
//
var links = document.getElementsByTagName('link');
var typePattern = /^text\/(x-)?less$/;
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]);
}
}
less.refresh = function (reload) {
var startTime, endTime;
startTime = endTime = new(Date);
loadStyleSheets(function (e, root, _, sheet, env) {
if (env.local) {
log("loading " + sheet.href + " from cache.");
} else {
log("parsed " + sheet.href + " successfully.");
createCSS(root.toCSS(), sheet, env.lastModified);
}
log("css for " + sheet.href + " generated in " + (new(Date) - endTime) + 'ms');
(env.remaining === 0) && log("css generated in " + (new(Date) - startTime) + 'ms');
endTime = new(Date);
}, reload);
loadStyles();
};
less.refreshStyles = loadStyles;
less.refresh(less.env === 'development');
function loadStyles() {
var styles = document.getElementsByTagName('style');
for (var i = 0; i < styles.length; i++) {
if (styles[i].type.match(typePattern)) {
new(less.Parser)().parse(styles[i].innerHTML || '', function (e, tree) {
var css = tree.toCSS();
var style = styles[i];
style.type = 'text/css';
if (style.styleSheet) {
style.styleSheet.cssText = css;
} else {
style.innerHTML = css;
}
});
}
}
}
function loadStyleSheets(callback, reload) {
for (var i = 0; i < less.sheets.length; i++) {
loadStyleSheet(less.sheets[i], callback, reload, less.sheets.length - (i + 1));
}
}
function loadStyleSheet(sheet, callback, reload, remaining) {
var url = window.location.href.replace(/[#?].*$/, '');
var href = sheet.href.replace(/\?.*$/, '');
var css = cache && cache.getItem(href);
var timestamp = cache && cache.getItem(href + ':timestamp');
var styles = { css: css, timestamp: timestamp };
// Stylesheets in IE don't always return the full path
if (! /^(https?|file):/.test(href)) {
if (href.charAt(0) == "/") {
href = window.location.protocol + "//" + window.location.host + href;
} else {
href = url.slice(0, url.lastIndexOf('/') + 1) + href;
}
}
var filename = href.match(/([^\/]+)$/)[1];
xhr(sheet.href, sheet.type, function (data, lastModified) {
if (!reload && styles && lastModified &&
(new(Date)(lastModified).valueOf() ===
new(Date)(styles.timestamp).valueOf())) {
// Use local copy
createCSS(styles.css, sheet);
callback(null, null, data, sheet, { local: true, remaining: remaining });
} else {
// Use remote copy (re-parse)
try {
new(less.Parser)({
optimization: less.optimization,
paths: [href.replace(/[\w\.-]+$/, '')],
mime: sheet.type,
filename: filename
}).parse(data, function (e, root) {
if (e) { return error(e, href) }
try {
callback(e, root, data, sheet, { local: false, lastModified: lastModified, remaining: remaining });
removeNode(document.getElementById('less-error-message:' + extractId(href)));
} catch (e) {
error(e, href);
}
});
} catch (e) {
error(e, href);
}
}
}, function (status, url) {
throw new(Error)("Couldn't load " + url + " (" + status + ")");
});
}
function extractId(href) {
return href.replace(/^[a-z]+:\/\/?[^\/]+/, '' ) // Remove protocol & domain
.replace(/^\//, '' ) // Remove root /
.replace(/\?.*$/, '' ) // Remove query
.replace(/\.[^\.\/]+$/, '' ) // Remove file extension
.replace(/[^\.\w-]+/g, '-') // Replace illegal characters
.replace(/\./g, ':'); // Replace dots with colons(for valid id)
}
function createCSS(styles, sheet, lastModified) {
var css;
// Strip the query-string
var href = sheet.href ? sheet.href.replace(/\?.*$/, '') : '';
// If there is no title set, use the filename, minus the extension
var id = 'less:' + (sheet.title || extractId(href));
// If the stylesheet doesn't exist, create a new node
if ((css = document.getElementById(id)) === null) {
css = document.createElement('style');
css.type = 'text/css';
css.media = sheet.media || 'screen';
css.id = id;
document.getElementsByTagName('head')[0].appendChild(css);
}
if (css.styleSheet) { // IE
try {
css.styleSheet.cssText = styles;
} catch (e) {
throw new(Error)("Couldn't reassign styleSheet.cssText.");
}
} else {
(function (node) {
if (css.childNodes.length > 0) {
if (css.firstChild.nodeValue !== node.nodeValue) {
css.replaceChild(node, css.firstChild);
}
} else {
css.appendChild(node);
}
})(document.createTextNode(styles));
}
// Don't update the local store if the file wasn't modified
if (lastModified && cache) {
log('saving ' + href + ' to cache.');
cache.setItem(href, styles);
cache.setItem(href + ':timestamp', lastModified);
}
}
function xhr(url, type, callback, errback) {
var xhr = getXMLHttpRequest();
var async = isFileProtocol ? false : less.async;
if (typeof(xhr.overrideMimeType) === 'function') {
xhr.overrideMimeType('text/css');
}
xhr.open('GET', url, async);
xhr.setRequestHeader('Accept', type || 'text/x-less, text/css; q=0.9, */*; q=0.5');
xhr.send(null);
if (isFileProtocol) {
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 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);
}
}
}
function getXMLHttpRequest() {
if (window.XMLHttpRequest) {
return new(XMLHttpRequest);
} else {
try {
return new(ActiveXObject)("MSXML2.XMLHTTP.3.0");
} catch (e) {
log("browser doesn't support AJAX.");
return null;
}
}
}
function removeNode(node) {
return node && node.parentNode.removeChild(node);
}
function log(str) {
if (less.env == 'development' && typeof(console) !== "undefined") { console.log('less: ' + str) }
}
function error(e, href) {
var id = 'less-error-message:' + extractId(href);
var template = '<li><label>{line}</label><pre class="{class}">{content}</pre></li>';
var elem = document.createElement('div'), timer, content, error = [];
var filename = e.filename || href;
elem.id = id;
elem.className = "less-error-message";
content = '<h3>' + (e.message || 'There is an error in your .less file') +
'</h3>' + '<p>in <a href="' + filename + '">' + filename + "</a> ";
var errorline = function (e, i, classname) {
if (e.extract[i]) {
error.push(template.replace(/\{line\}/, parseInt(e.line) + (i - 1))
.replace(/\{class\}/, classname)
.replace(/\{content\}/, e.extract[i]));
}
};
if (e.stack) {
content += '<br/>' + e.stack.split('\n').slice(1).join('<br/>');
} else if (e.extract) {
errorline(e, 0, '');
errorline(e, 1, 'line');
errorline(e, 2, '');
content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':</p>' +
'<ul>' + error.join('') + '</ul>';
}
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);
}
}
})(window);
Raw
less-1.3.0.min.js
/*
LESS - Leaner CSS v1.3.0
http://lesscss.org
Copyright (c) 2009-2011, Alexis Sellier
Licensed under the Apache 2.0 License.
*/
(function(a,b){function c(b){return a.less[b.split("/")[1]]}function l(){var a=document.getElementsByTagName("style");for(var b=0;b<a.length;b++)a[b].type.match(j)&&(new d.Parser).parse(a[b].innerHTML||"",function(c,d){var e=d.toCSS(),f=a[b];f.type="text/css",f.styleSheet?f.styleSheet.cssText=e:f.innerHTML=e})}function m(a,b){for(var c=0;c<d.sheets.length;c++)n(d.sheets[c],a,b,d.sheets.length-(c+1))}function n(b,c,e,f){var h=a.location.href.replace(/[#?].*$/,""),i=b.href.replace(/\?.*$/,""),j=g&&g.getItem(i),k=g&&g.getItem(i+":timestamp"),l={css:j,timestamp:k};/^(https?|file):/.test(i)||(i.charAt(0)=="/"?i=a.location.protocol+"//"+a.location.host+i:i=h.slice(0,h.lastIndexOf("/")+1)+i);var m=i.match(/([^\/]+)$/)[1];q(b.href,b.type,function(a,g){if(!e&&l&&g&&(new Date(g)).valueOf()===(new Date(l.timestamp)).valueOf())p(l.css,b),c(null,null,a,b,{local:!0,remaining:f});else try{(new d.Parser({optimization:d.optimization,paths:[i.replace(/[\w\.-]+$/,"")],mime:b.type,filename:m})).parse(a,function(d,e){if(d)return u(d,i);try{c(d,e,a,b,{local:!1,lastModified:g,remaining:f}),s(document.getElementById("less-error-message:"+o(i)))}catch(d){u(d,i)}})}catch(h){u(h,i)}},function(a,b){throw new Error("Couldn't load "+b+" ("+a+")")})}function o(a){return a.replace(/^[a-z]+:\/\/?[^\/]+/,"").replace(/^\//,"").replace(/\?.*$/,"").replace(/\.[^\.\/]+$/,"").replace(/[^\.\w-]+/g,"-").replace(/\./g,":")}function p(a,b,c){var d,e=b.href?b.href.replace(/\?.*$/,""):"",f="less:"+(b.title||o(e));(d=document.getElementById(f))===null&&(d=document.createElement("style"),d.type="text/css",d.media=b.media||"screen",d.id=f,document.getElementsByTagName("head")[0].appendChild(d));if(d.styleSheet)try{d.styleSheet.cssText=a}catch(h){throw new Error("Couldn't reassign styleSheet.cssText.")}else(function(a){d.childNodes.length>0?d.firstChild.nodeValue!==a.nodeValue&&d.replaceChild(a,d.firstChild):d.appendChild(a)})(document.createTextNode(a));c&&g&&(t("saving "+e+" to cache."),g.setItem(e,a),g.setItem(e+":timestamp",c))}function q(a,b,c,e){function i(b,c,d){b.status>=200&&b.status<300?c(b.responseText,b.getResponseHeader("Last-Modified")):typeof d=="function"&&d(b.status,a)}var g=r(),h=f?!1:d.async;typeof g.overrideMimeType=="function"&&g.overrideMimeType("text/css"),g.open("GET",a,h),g.setRequestHeader("Accept",b||"text/x-less, text/css; q=0.9, */*; q=0.5"),g.send(null),f?g.status===0||g.status>=200&&g.status<300?c(g.responseText):e(g.status,a):h?g.onreadystatechange=function(){g.readyState==4&&i(g,c,e)}:i(g,c,e)}function r(){if(a.XMLHttpRequest)return new XMLHttpRequest;try{return new ActiveXObject("MSXML2.XMLHTTP.3.0")}catch(b){return t("browser doesn't support AJAX."),null}}function s(a){return a&&a.parentNode.removeChild(a)}function t(a){d.env=="development"&&typeof console!="undefined"&&console.log("less: "+a)}function u(a,b){var c="less-error-message:"+o(b),e='<li><label>{line}</label><pre class="{class}">{content}</pre></li>',f=document.createElement("div"),g,h,i=[],j=a.filename||b;f.id=c,f.className="less-error-message",h="<h3>"+(a.message||"There is an error in your .less file")+"</h3>"+'<p>in <a href="'+j+'">'+j+"</a> ";var k=function(a,b,c){a.extract[b]&&i.push(e.replace(/\{line\}/,parseInt(a.line)+(b-1)).replace(/\{class\}/,c).replace(/\{content\}/,a.extract[b]))};a.stack?h+="<br/>"+a.stack.split("\n").slice(1).join("<br/>"):a.extract&&(k(a,0,""),k(a,1,"line"),k(a,2,""),h+="on line "+a.line+", column "+(a.column+1)+":</p>"+"<ul>"+i.join("")+"</ul>"),f.innerHTML=h,p([".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"}),f.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(";"),d.env=="development"&&(g=setInterval(function(){document.body&&(document.getElementById(c)?document.body.replaceChild(f,document.getElementById(c)):document.body.insertBefore(f,document.body.firstChild),clearInterval(g))},10))}typeof define=="function"&&define.amd&&define("less",[],function(){return d}),Array.isArray||(Array.isArray=function(a){return Object.prototype.toString.call(a)==="[object Array]"||a instanceof Array}),Array.prototype.forEach||(Array.prototype.forEach=function(a,b){var c=this.length>>>0;for(var d=0;d<c;d++)d in this&&a.call(b,this[d],d,this)}),Array.prototype.map||(Array.prototype.map=function(a){var b=this.length>>>0,c=new Array(b),d=arguments[1];for(var e=0;e<b;e++)e in this&&(c[e]=a.call(d,this[e],e,this));return c}),Array.prototype.filter||(Array.prototype.filter=function(a){var b=[],c=arguments[1];for(var d=0;d<this.length;d++)a.call(c,this[d])&&b.push(this[d]);return b}),Array.prototype.reduce||(Array.prototype.reduce=function(a){var b=this.length>>>0,c=0;if(b===0&&arguments.length===1)throw new TypeError;if(arguments.length>=2)var d=arguments[1];else do{if(c in this){d=this[c++];break}if(++c>=b)throw new TypeError}while(!0);for(;c<b;c++)c in this&&(d=a.call(null,d,this[c],c,this));return d}),Array.prototype.indexOf||(Array.prototype.indexOf=function(a){var b=this.length,c=arguments[1]||0;if(!b)return-1;if(c>=b)return-1;c<0&&(c+=b);for(;c<b;c++){if(!Object.prototype.hasOwnProperty.call(this,c))continue;if(a===this[c])return c}return-1}),Object.keys||(Object.keys=function(a){var b=[];for(var c in a)Object.prototype.hasOwnProperty.call(a,c)&&b.push(c);return b}),String.prototype.trim||(String.prototype.trim=function(){return String(this).replace(/^\s\s*/,"").replace(/\s\s*$/,"")});var d,e;typeof environment=="object"&&{}.toString.call(environment)==="[object Environment]"?(typeof a=="undefined"?d={}:d=a.less={},e=d.tree={},d.mode="rhino"):typeof a=="undefined"?(d=exports,e=c("./tree"),d.mode="node"):(typeof a.less=="undefined"&&(a.less={}),d=a.less,e=a.less.tree={},d.mode="browser"),d.Parser=function(b){function r(){i=l[h],j=g,m=g}function s(){l[h]=i,g=j,m=g}function t(){g>m&&(l[h]=l[h].slice(g-m),m=g)}function u(a){var b,c,d,e,i,j,k,o;if(a instanceof Function)return a.call(n.parsers);if(typeof a=="string")b=f.charAt(g)===a?a:null,d=1,t();else{t();if(!(b=a.exec(l[h])))return null;d=b[0].length}if(b){o=g+=d,j=g+l[h].length-d;while(g<j){e=f.charCodeAt(g);if(e!==32&&e!==10&&e!==9)break;g++}return l[h]=l[h].slice(d+(g-o)),m=g,l[h].length===0&&h<l.length-1&&h++,typeof b=="string"?b:b.length===1?b[0]:b}}function v(a,b){var c=u(a);if(!!c)return c;w(b||(typeof a=="string"?"expected '"+a+"' got '"+f.charAt(g)+"'":"unexpected token"))}function w(a,b){throw{index:g,type:b||"Syntax",message:a}}function x(a){return typeof a=="string"?f.charAt(g)===a:a.test(l[h])?!0:!1}function y(a){return d.mode==="node"?c("path").basename(a):a.match(/[^\/]+$/)[0]}function z(a,b){return a.filename&&b.filename&&a.filename!==b.filename?n.imports.contents[y(a.filename)]:f}function A(a,b){for(var c=a,d=-1;c>=0&&b.charAt(c)!=="\n";c--)d++;return{line:typeof a=="number"?(b.slice(0,a).match(/\n/g)||"").length:null,column:d}}function B(a,b){var c=z(a,b),d=A(a.index,c),e=d.line,f=d.column,g=c.split("\n");this.type=a.type||"Syntax",this.message=a.message,this.filename=a.filename||b.filename,this.index=a.index,this.line=typeof e=="number"?e+1:null,this.callLine=a.call&&A(a.call,c).line+1,this.callExtract=g[A(a.call,c).line],this.stack=a.stack,this.column=f,this.extract=[g[e-1],g[e],g[e+1]]}var f,g,h,i,j,k,l,m,n,o=this,p=function(){},q=this.imports={paths:b&&b.paths||[],queue:[],files:{},contents:{},mime:b&&b.mime,error:null,push:function(a,c){var e=this;this.queue.push(a),d.Parser.importer(a,this.paths,function(b,d,f){e.queue.splice(e.queue.indexOf(a),1),e.files[a]=d,e.contents[a]=f,b&&!e.error&&(e.error=b),c(b,d),e.queue.length===0&&p()},b)}};return this.env=b=b||{},this.optimization="optimization"in this.env?this.env.optimization:1,this.env.filename=this.env.filename||null,n={imports:q,parse:function(a,i){var j,o,q,r,s,t,v=[],w,x=null;g=h=m=k=0,f=a.replace(/\r\n/g,"\n"),l=function(a){var c=0,d=/[^"'`\{\}\/\(\)\\]+/g,e=/\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g,g=/"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'|`((?:[^`\\\r\n]|\\.)*)`/g,h=0,i,j=a[0],k;for(var l=0,m,n;l<f.length;l++){d.lastIndex=l,(i=d.exec(f))&&i.index===l&&(l+=i[0].length,j.push(i[0])),m=f.charAt(l),e.lastIndex=g.lastIndex=l,(i=g.exec(f))&&i.index===l&&(l+=i[0].length,j.push(i[0]),m=f.charAt(l)),!k&&m==="/"&&(n=f.charAt(l+1),(n==="/"||n==="*")&&(i=e.exec(f))&&i.index===l&&(l+=i[0].length,j.push(i[0]),m=f.charAt(l)));switch(m){case"{":if(!k){h++,j.push(m);break};case"}":if(!k){h--,j.push(m),a[++c]=j=[];break};case"(":if(!k){k=!0,j.push(m);break};case")":if(k){k=!1,j.push(m);break};default:j.push(m)}}return h>0&&(x=new B({index:l,type:"Parse",message:"missing closing `}`",filename:b.filename},b)),a.map(function(a){return a.join("")})}([[]]);if(x)return i(x);try{j=new e.Ruleset([],u(this.parsers.primary)),j.root=!0}catch(y){return i(new B(y,b))}j.toCSS=function(a){var f,g,h;return function(f,g){var h=[],i;f=f||{},typeof g=="object"&&!Array.isArray(g)&&(g=Object.keys(g).map(function(a){var b=g[a];return b instanceof e.Value||(b instanceof e.Expression||(b=new e.Expression([b])),b=new e.Value([b])),new e.Rule("@"+a,b,!1,0)}),h=[new e.Ruleset(null,g)]);try{var j=a.call(this,{frames:h}).toCSS([],{compress:f.compress||!1})}catch(k){throw new B(k,b)}if(i=n.imports.error)throw i instanceof B?i:new B(i,b);return f.yuicompress&&d.mode==="node"?c("./cssmin").compressor.cssmin(j):f.compress?j.replace(/(\s)+/g,"$1"):j}}(j.eval);if(g<f.length-1){g=k,t=f.split("\n"),s=(f.slice(0,g).match(/\n/g)||"").length+1;for(var z=g,A=-1;z>=0&&f.charAt(z)!=="\n";z--)A++;x={type:"Parse",message:"Syntax Error on line "+s,index:g,filename:b.filename,line:s,column:A,extract:[t[s-2],t[s-1],t[s]]}}this.imports.queue.length>0?p=function(){i(x,j)}:i(x,j)},parsers:{primary:function(){var a,b=[];while((a=u(this.mixin.definition)||u(this.rule)||u(this.ruleset)||u(this.mixin.call)||u(this.comment)||u(this.directive))||u(/^[\s\n]+/))a&&b.push(a);return b},comment:function(){var a;if(f.charAt(g)!=="/")return;if(f.charAt(g+1)==="/")return new e.Comment(u(/^\/\/.*/),!0);if(a=u(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/))return new e.Comment(a)},entities:{quoted:function(){var a,b=g,c;f.charAt(b)==="~"&&(b++,c=!0);if(f.charAt(b)!=='"'&&f.charAt(b)!=="'")return;c&&u("~");if(a=u(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/))return new e.Quoted(a[0],a[1]||a[2],c)},keyword:function(){var a;if(a=u(/^[_A-Za-z-][_A-Za-z0-9-]*/))return e.colors.hasOwnProperty(a)?new e.Color(e.colors[a].slice(1)):new e.Keyword(a)},call:function(){var a,c,d=g;if(!(a=/^([\w-]+|%|progid:[\w\.]+)\(/.exec(l[h])))return;a=a[1].toLowerCase();if(a==="url")return null;g+=a.length;if(a==="alpha")return u(this.alpha);u("("),c=u(this.entities.arguments);if(!u(")"))return;if(a)return new e.Call(a,c,d,b.filename)},arguments:function(){var a=[],b;while(b=u(this.entities.assignment)||u(this.expression)){a.push(b);if(!u(","))break}return a},literal:function(){return u(this.entities.dimension)||u(this.entities.color)||u(this.entities.quoted)},assignment:function(){var a,b;if((a=u(/^\w+(?=\s?=)/i))&&u("=")&&(b=u(this.entity)))return new e.Assignment(a,b)},url:function(){var a;if(f.charAt(g)!=="u"||!u(/^url\(/))return;return a=u(this.entities.quoted)||u(this.entities.variable)||u(this.entities.dataURI)||u(/^[-\w%@$\/.&=:;#+?~]+/)||"",v(")"),new e.URL(a.value||a.data||a instanceof e.Variable?a:new e.Anonymous(a),q.paths)},dataURI:function(){var a;if(u(/^data:/)){a={},a.mime=u(/^[^\/]+\/[^,;)]+/)||"",a.charset=u(/^;\s*charset=[^,;)]+/)||"",a.base64=u(/^;\s*base64/)||"",a.data=u(/^,\s*[^)]+/);if(a.data)return a}},variable:function(){var a,c=g;if(f.charAt(g)==="@"&&(a=u(/^@@?[\w-]+/)))return new e.Variable(a,c,b.filename)},color:function(){var a;if(f.charAt(g)==="#"&&(a=u(/^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})/)))return new e.Color(a[1])},dimension:function(){var a,b=f.charCodeAt(g);if(b>57||b<45||b===47)return;if(a=u(/^(-?\d*\.?\d+)(px|%|em|rem|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn)?/))return new e.Dimension(a[1],a[2])},javascript:function(){var a,b=g,c;f.charAt(b)==="~"&&(b++,c=!0);if(f.charAt(b)!=="`")return;c&&u("~");if(a=u(/^`([^`]*)`/))return new e.JavaScript(a[1],g,c)}},variable:function(){var a;if(f.charAt(g)==="@"&&(a=u(/^(@[\w-]+)\s*:/)))return a[1]},shorthand:function(){var a,b;if(!x(/^[@\w.%-]+\/[@\w.-]+/))return;if((a=u(this.entity))&&u("/")&&(b=u(this.entity)))return new e.Shorthand(a,b)},mixin:{call:function(){var a=[],c,d,h,i=g,j=f.charAt(g),k=!1;if(j!=="."&&j!=="#")return;while(c=u(/^[#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/))a.push(new e.Element(d,c,g)),d=u(">");u("(")&&(h=u(this.entities.arguments))&&u(")"),u(this.important)&&(k=!0);if(a.length>0&&(u(";")||x("}")))return new e.mixin.Call(a,h||[],i,b.filename,k)},definition:function(){var a,b=[],c,d,h,i,j,k=!1;if(f.charAt(g)!=="."&&f.charAt(g)!=="#"||x(/^[^{]*(;|})/))return;r();if(c=u(/^([#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+)\s*\(/)){a=c[1];do{if(f.charAt(g)==="."&&u(/^\.{3}/)){k=!0;break}if(!(h=u(this.entities.variable)||u(this.entities.literal)||u(this.entities.keyword)))break;if(h instanceof e.Variable)if(u(":"))i=v(this.expression,"expected expression"),b.push({name:h.name,value:i});else{if(u(/^\.{3}/)){b.push({name:h.name,variadic:!0}),k=!0;break}b.push({name:h.name})}else b.push({value:h})}while(u(","));v(")"),u(/^when/)&&(j=v(this.conditions,"expected condition")),d=u(this.block);if(d)return new e.mixin.Definition(a,b,d,j,k);s()}}},entity:function(){return u(this.entities.literal)||u(this.entities.variable)||u(this.entities.url)||u(this.entities.call)||u(this.entities.keyword)||u(this.entities.javascript)||u(this.comment)},end:function(){return u(";")||x("}")},alpha:function(){var a;if(!u(/^\(opacity=/i))return;if(a=u(/^\d+/)||u(this.entities.variable))return v(")"),new e.Alpha(a)},element:function(){var a,b,c,d;c=u(this.combinator),a=u(/^(?:\d+\.\d+|\d+)%/)||u(/^(?:[.#]?|:*)(?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/)||u("*")||u(this.attribute)||u(/^\([^)@]+\)/),a||u("(")&&(d=u(this.entities.variable))&&u(")")&&(a=new e.Paren(d));if(a)return new e.Element(c,a,g);if(c.value&&c.value.charAt(0)==="&")return new e.Element(c,null,g)},combinator:function(){var a,b=f.charAt(g);if(b===">"||b==="+"||b==="~"){g++;while(f.charAt(g)===" ")g++;return new e.Combinator(b)}if(b==="&"){a="&",g++,f.charAt(g)===" "&&(a="& ");while(f.charAt(g)===" ")g++;return new e.Combinator(a)}return f.charAt(g-1)===" "?new e.Combinator(" "):new e.Combinator(null)},selector:function(){var a,b,c=[],d,h;if(u("("))return a=u(this.entity),v(")"),new e.Selector([new e.Element("",a,g)]);while(b=u(this.element)){d=f.charAt(g),c.push(b);if(d==="{"||d==="}"||d===";"||d===",")break}if(c.length>0)return new e.Selector(c)},tag:function(){return u(/^[a-zA-Z][a-zA-Z-]*[0-9]?/)||u("*")},attribute:function(){var a="",b,c,d;if(!u("["))return;if(b=u(/^[a-zA-Z-]+/)||u(this.entities.quoted))(d=u(/^[|~*$^]?=/))&&(c=u(this.entities.quoted)||u(/^[\w-]+/))?a=[b,d,c.toCSS?c.toCSS():c].join(""):a=b;if(!u("]"))return;if(a)return"["+a+"]"},block:function(){var a;if(u("{")&&(a=u(this.primary))&&u("}"))return a},ruleset:function(){var a=[],c,d,f;r();while(c=u(this.selector)){a.push(c),u(this.comment);if(!u(","))break;u(this.comment)}if(a.length>0&&(d=u(this.block)))return new e.Ruleset(a,d,b.strictImports);k=g,s()},rule:function(){var a,b,c=f.charAt(g),d,i;r();if(c==="."||c==="#"||c==="&")return;if(a=u(this.variable)||u(this.property)){a.charAt(0)!="@"&&(i=/^([^@+\/'"*`(;{}-]*);/.exec(l[h]))?(g+=i[0].length-1,b=new e.Anonymous(i[1])):a==="font"?b=u(this.font):b=u(this.value),d=u(this.important);if(b&&u(this.end))return new e.Rule(a,b,d,j);k=g,s()}},"import":function(){var a,b,c=g;if(u(/^@import\s+/)&&(a=u(this.entities.quoted)||u(this.entities.url))){b=u(this.mediaFeatures);if(u(";"))return new e.Import(a,q,b,c)}},mediaFeature:function(){var a,b,c=[];do if(a=u(this.entities.keyword))c.push(a);else if(u("(")){b=u(this.property),a=u(this.entity);if(!u(")"))return null;if(b&&a)c.push(new e.Paren(new e.Rule(b,a,null,g,!0)));else{if(!a)return null;c.push(new e.Paren(a))}}while(a);if(c.length>0)return new e.Expression(c)},mediaFeatures:function(){var a,b=[];do if(a=u(this.mediaFeature)){b.push(a);if(!u(","))break}else if(a=u(this.entities.variable)){b.push(a);if(!u(","))break}while(a);return b.length>0?b:null},media:function(){var a,b;if(u(/^@media/)){a=u(this.mediaFeatures);if(b=u(this.block))return new e.Media(b,a)}},directive:function(){var a,b,c,d,h,i;if(f.charAt(g)!=="@")return;if(b=u(this["import"])||u(this.media))return b;if(a=u(/^@page|@keyframes/)||u(/^@(?:-webkit-|-moz-|-o-|-ms-)[a-z0-9-]+/)){d=(u(/^[^{]+/)||"").trim();if(c=u(this.block))return new e.Directive(a+" "+d,c)}else if(a=u(/^@[-a-z]+/))if(a==="@font-face"){if(c=u(this.block))return new e.Directive(a,c)}else if((b=u(this.entity))&&u(";"))return new e.Directive(a,b)},font:function(){var a=[],b=[],c,d,f,g;while(g=u(this.shorthand)||u(this.entity))b.push(g);a.push(new e.Expression(b));if(u(","))while(g=u(this.expression)){a.push(g);if(!u(","))break}return new e.Value(a)},value:function(){var a,b=[],c;while(a=u(this.expression)){b.push(a);if(!u(","))break}if(b.length>0)return new e.Value(b)},important:function(){if(f.charAt(g)==="!")return u(/^! *important/)},sub:function(){var a;if(u("(")&&(a=u(this.expression))&&u(")"))return a},multiplication:function(){var a,b,c,d;if(a=u(this.operand)){while(!x(/^\/\*/)&&(c=u("/")||u("*"))&&(b=u(this.operand)))d=new e.Operation(c,[d||a,b]);return d||a}},addition:function(){var a,b,c,d;if(a=u(this.multiplication)){while((c=u(/^[-+]\s+/)||f.charAt(g-1)!=" "&&(u("+")||u("-")))&&(b=u(this.multiplication)))d=new e.Operation(c,[d||a,b]);return d||a}},conditions:function(){var a,b,c=g,d;if(a=u(this.condition)){while(u(",")&&(b=u(this.condition)))d=new e.Condition("or",d||a,b,c);return d||a}},condition:function(){var a,b,c,d,f=g,h=!1;u(/^not/)&&(h=!0),v("(");if(a=u(this.addition)||u(this.entities.keyword)||u(this.entities.quoted))return(d=u(/^(?:>=|=<|[<=>])/))?(b=u(this.addition)||u(this.entities.keyword)||u(this.entities.quoted))?c=new e.Condition(d,a,b,f,h):w("expected expression"):c=new e.Condition("=",a,new e.Keyword("true"),f,h),v(")"),u(/^and/)?new e.Condition("and",c,u(this.condition)):c},operand:function(){var a,b=f.charAt(g+1);f.charAt(g)==="-"&&(b==="@"||b==="(")&&(a=u("-"));var c=u(this.sub)||u(this.entities.dimension)||u(this.entities.color)||u(this.entities.variable)||u(this.entities.call);return a?new e.Operation("*",[new e.Dimension(-1),c]):c},expression:function(){var a,b,c=[],d;while(a=u(this.addition)||u(this.entity))c.push(a);if(c.length>0)return new e.Expression(c)},property:function(){var a;if(a=u(/^(\*?-?[-a-z_0-9]+)\s*:/))return a[1]}}}};if(d.mode==="browser"||d.mode==="rhino")d.Parser.importer=function(a,b,c,d){!/^([a-z]+:)?\//.test(a)&&b.length>0&&(a=b[0]+a),n({href:a,title:a,type:d.mime},function(e){e&&typeof d.errback=="function"?d.errback.call(null,a,b,c,d):c.apply(null,arguments)},!0)};(function(a){function b(b){return a.functions.hsla(b.h,b.s,b.l,b.a)}function c(b){if(b instanceof a.Dimension)return parseFloat(b.unit=="%"?b.value/100:b.value);if(typeof b=="number")return b;throw{error:"RuntimeError",message:"color functions take numbers as parameters"}}function d(a){return Math.min(1,Math.max(0,a))}a.functions={rgb:function(a,b,c){return this.rgba(a,b,c,1)},rgba:function(b,d,e,f){var g=[b,d,e].map(function(a){return c(a)}),f=c(f);return new a.Color(g,f)},hsl:function(a,b,c){return this.hsla(a,b,c,1)},hsla:function(a,b,d,e){function h(a){return a=a<0?a+1:a>1?a-1:a,a*6<1?g+(f-g)*a*6:a*2<1?f:a*3<2?g+(f-g)*(2/3-a)*6:g}a=c(a)%360/360,b=c(b),d=c(d),e=c(e);var f=d<=.5?d*(b+1):d+b-d*b,g=d*2-f;return this.rgba(h(a+1/3)*255,h(a)*255,h(a-1/3)*255,e)},hue:function(b){return new a.Dimension(Math.round(b.toHSL().h))},saturation:function(b){return new a.Dimension(Math.round(b.toHSL().s*100),"%")},lightness:function(b){return new a.Dimension(Math.round(b.toHSL().l*100),"%")},alpha:function(b){return new a.Dimension(b.toHSL().a)},saturate:function(a,c){var e=a.toHSL();return e.s+=c.value/100,e.s=d(e.s),b(e)},desaturate:function(a,c){var e=a.toHSL();return e.s-=c.value/100,e.s=d(e.s),b(e)},lighten:function(a,c){var e=a.toHSL();return e.l+=c.value/100,e.l=d(e.l),b(e)},darken:function(a,c){var e=a.toHSL();return e.l-=c.value/100,e.l=d(e.l),b(e)},fadein:function(a,c){var e=a.toHSL();return e.a+=c.value/100,e.a=d(e.a),b(e)},fadeout:function(a,c){var e=a.toHSL();return e.a-=c.value/100,e.a=d(e.a),b(e)},fade:function(a,c){var e=a.toHSL();return e.a=c.value/100,e.a=d(e.a),b(e)},spin:function(a,c){var d=a.toHSL(),e=(d.h+c.value)%360;return d.h=e<0?360+e:e,b(d)},mix:function(b,c,d){var e=d.value/100,f=e*2-1,g=b.toHSL().a-c.toHSL().a,h=((f*g==-1?f:(f+g)/(1+f*g))+1)/2,i=1-h,j=[b.rgb[0]*h+c.rgb[0]*i,b.rgb[1]*h+c.rgb[1]*i,b.rgb[2]*h+c.rgb[2]*i],k=b.alpha*e+c.alpha*(1-e);return new a.Color(j,k)},greyscale:function(b){return this.desaturate(b,new a.Dimension(100))},e:function(b){return new a.Anonymous(b instanceof a.JavaScript?b.evaluated:b)},escape:function(b){return new a.Anonymous(encodeURI(b.value).replace(/=/g,"%3D").replace(/:/g,"%3A").replace(/#/g,"%23").replace(/;/g,"%3B").replace(/\(/g,"%28").replace(/\)/g,"%29"))},"%":function(b){var c=Array.prototype.slice.call(arguments,1),d=b.value;for(var e=0;e<c.length;e++)d=d.replace(/%[sda]/i,function(a){var b=a.match(/s/i)?c[e].value:c[e].toCSS();return a.match(/[A-Z]$/)?encodeURIComponent(b):b});return d=d.replace(/%%/g,"%"),new a.Quoted('"'+d+'"',d)},round:function(a){return this._math("round",a)},ceil:function(a){return this._math("ceil",a)},floor:function(a){return this._math("floor",a)},_math:function(b,d){if(d instanceof a.Dimension)return new a.Dimension(Math[b](c(d)),d.unit);if(typeof d=="number")return Math[b](d);throw{type:"Argument",message:"argument must be a number"}},argb:function(b){return new a.Anonymous(b.toARGB())},percentage:function(b){return new a.Dimension(b.value*100,"%")},color:function(b){if(b instanceof a.Quoted)return new a.Color(b.value.slice(1));throw{type:"Argument",message:"argument must be a string"}},iscolor:function(b){return this._isa(b,a.Color)},isnumber:function(b){return this._isa(b,a.Dimension)},isstring:function(b){return this._isa(b,a.Quoted)},iskeyword:function(b){return this._isa(b,a.Keyword)},isurl:function(b){return this._isa(b,a.URL)},ispixel:function(b){return b instanceof a.Dimension&&b.unit==="px"?a.True:a.False},ispercentage:function(b){return b instanceof a.Dimension&&b.unit==="%"?a.True:a.False},isem:function(b){return b instanceof a.Dimension&&b.unit==="em"?a.True:a.False},_isa:function(b,c){return b instanceof c?a.True:a.False}}})(c("./tree")),function(a){a.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"}}(c("./tree")),function(a){a.Alpha=function(a){this.value=a},a.Alpha.prototype={toCSS:function(){return"alpha(opacity="+(this.value.toCSS?this.value.toCSS():this.value)+")"},eval:function(a){return this.value.eval&&(this.value=this.value.eval(a)),this}}}(c("../tree")),function(a){a.Anonymous=function(a){this.value=a.value||a},a.Anonymous.prototype={toCSS:function(){return this.value},eval:function(){return this}}}(c("../tree")),function(a){a.Assignment=function(a,b){this.key=a,this.value=b},a.Assignment.prototype={toCSS:function(){return this.key+"="+(this.value.toCSS?this.value.toCSS():this.value)},eval:function(a){return this.value.eval&&(this.value=this.value.eval(a)),this}}}(c("../tree")),function(a){a.Call=function(a,b,c,d){this.name=a,this.args=b,this.index=c,this.filename=d},a.Call.prototype={eval:function(b){var c=this.args.map(function(a){return a.eval(b)});if(!(this.name in a.functions))return new a.Anonymous(this.name+"("+c.map(function(a){return a.toCSS()}).join(", ")+")");try{return a.functions[this.name].apply(a.functions,c)}catch(d){throw{type:d.type||"Runtime",message:"error evaluating function `"+this.name+"`"+(d.message?": "+d.message:""),index:this.index,filename:this.filename}}},toCSS:function(a){return this.eval(a).toCSS()}}}(c("../tree")),function(a){a.Color=function(a,b){Array.isArray(a)?this.rgb=a:a.length==6?this.rgb=a.match(/.{2}/g).map(function(a){return parseInt(a,16)}):this.rgb=a.split("").map(function(a){return parseInt(a+a,16)}),this.alpha=typeof b=="number"?b:1},a.Color.prototype={eval:function(){return this},toCSS:function(){return this.alpha<1?"rgba("+this.rgb.map(function(a){return Math.round(a)}).concat(this.alpha).join(", ")+")":"#"+this.rgb.map(function(a){return a=Math.round(a),a=(a>255?255:a<0?0:a).toString(16),a.length===1?"0"+a:a}).join("")},operate:function(b,c){var d=[];c instanceof a.Color||(c=c.toColor());for(var e=0;e<3;e++)d[e]=a.operate(b,this.rgb[e],c.rgb[e]);return new a.Color(d,this.alpha+c.alpha)},toHSL:function(){var a=this.rgb[0]/255,b=this.rgb[1]/255,c=this.rgb[2]/255,d=this.alpha,e=Math.max(a,b,c),f=Math.min(a,b,c),g,h,i=(e+f)/2,j=e-f;if(e===f)g=h=0;else{h=i>.5?j/(2-e-f):j/(e+f);switch(e){case a:g=(b-c)/j+(b<c?6:0);break;case b:g=(c-a)/j+2;break;case c:g=(a-b)/j+4}g/=6}return{h:g*360,s:h,l:i,a:d}},toARGB:function(){var a=[Math.round(this.alpha*255)].concat(this.rgb);return"#"+a.map(function(a){return a=Math.round(a),a=(a>255?255:a<0?0:a).toString(16),a.length===1?"0"+a:a}).join("")}}}(c("../tree")),function(a){a.Comment=function(a,b){this.value=a,this.silent=!!b},a.Comment.prototype={toCSS:function(a){return a.compress?"":this.value},eval:function(){return this}}}(c("../tree")),function(a){a.Condition=function(a,b,c,d,e){this.op=a.trim(),this.lvalue=b,this.rvalue=c,this.index=d,this.negate=e},a.Condition.prototype.eval=function(a){var b=this.lvalue.eval(a),c=this.rvalue.eval(a),d=this.index,e,e=function(a){switch(a){case"and":return b&&c;case"or":return b||c;default:if(b.compare)e=b.compare(c);else{if(!c.compare)throw{type:"Type",message:"Unable to perform comparison",index:d};e=c.compare(b)}switch(e){case-1:return a==="<"||a==="=<";case 0:return a==="="||a===">="||a==="=<";case 1:return a===">"||a===">="}}}(this.op);return this.negate?!e:e}}(c("../tree")),function(a){a.Dimension=function(a,b){this.value=parseFloat(a),this.unit=b||null},a.Dimension.prototype={eval:function(){return this},toColor:function(){return new a.Color([this.value,this.value,this.value])},toCSS:function(){var a=this.value+this.unit;return a},operate:function(b,c){return new a.Dimension(a.operate(b,this.value,c.value),this.unit||c.unit)},compare:function(b){return b instanceof a.Dimension?b.value>this.value?-1:b.value<this.value?1:0:-1}}}(c("../tree")),function(a){a.Directive=function(b,c,d){this.name=b,Array.isArray(c)?(this.ruleset=new a.Ruleset([],c),this.ruleset.allowImports=!0):this.value=c},a.Directive.prototype={toCSS:function(a,b){return this.ruleset?(this.ruleset.root=!0,this.name+(b.compress?"{":" {\n ")+this.ruleset.toCSS(a,b).trim().replace(/\n/g,"\n ")+(b.compress?"}":"\n}\n")):this.name+" "+this.value.toCSS()+";\n"},eval:function(a){return a.frames.unshift(this),this.ruleset=this.ruleset&&this.ruleset.eval(a),a.frames.shift(),this},variable:function(b){return a.Ruleset.prototype.variable.call(this.ruleset,b)},find:function(){return a.Ruleset.prototype.find.apply(this.ruleset,arguments)},rulesets:function(){return a.Ruleset.prototype.rulesets.apply(this.ruleset)}}}(c("../tree")),function(a){a.Element=function(b,c,d){this.combinator=b instanceof a.Combinator?b:new a.Combinator(b),typeof c=="string"?this.value=c.trim():c?this.value=c:this.value="",this.index=d},a.Element.prototype.eval=function(b){return new a.Element(this.combinator,this.value.eval?this.value.eval(b):this.value,this.index)},a.Element.prototype.toCSS=function(a){return this.combinator.toCSS(a||{})+(this.value.toCSS?this.value.toCSS(a):this.value)},a.Combinator=function(a){a===" "?this.value=" ":a==="& "?this.value="& ":this.value=a?a.trim():""},a.Combinator.prototype.toCSS=function(a){return{"":""," ":" ","&":"","& ":" ",":":" :","+":a.compress?"+":" + ","~":a.compress?"~":" ~ ",">":a.compress?">":" > "}[this.value]}}(c("../tree")),function(a){a.Expression=function(a){this.value=a},a.Expression.prototype={eval:function(b){return this.value.length>1?new a.Expression(this.value.map(function(a){return a.eval(b)})):this.value.length===1?this.value[0].eval(b):this},toCSS:function(a){return this.value.map(function(b){return b.toCSS?b.toCSS(a):""}).join(" ")}}}(c("../tree")),function(a){a.Import=function(b,c,d,e){var f=this;this.index=e,this._path=b,this.features=d&&new a.Value(d),b instanceof a.Quoted?this.path=/\.(le?|c)ss(\?.*)?$/.test(b.value)?b.value:b.value+".less":this.path=b.value.value||b.value,this.css=/css(\?.*)?$/.test(this.path),this.css||c.push(this.path,function(b,c){b&&(b.index=e),f.root=c||new a.Ruleset([],[])})},a.Import.prototype={toCSS:function(a){var b=this.features?" "+this.features.toCSS(a):"";return this.css?"@import "+this._path.toCSS()+b+";\n":""},eval:function(b){var c,d=this.features&&this.features.eval(b);if(this.css)return this;c=new a.Ruleset([],this.root.rules.slice(0));for(var e=0;e<c.rules.length;e++)c.rules[e]instanceof a.Import&&Array.prototype.splice.apply
(c.rules,[e,1].concat(c.rules[e].eval(b)));return this.features?new a.Media(c.rules,this.features.value):c.rules}}}(c("../tree")),function(a){a.JavaScript=function(a,b,c){this.escaped=c,this.expression=a,this.index=b},a.JavaScript.prototype={eval:function(b){var c,d=this,e={},f=this.expression.replace(/@\{([\w-]+)\}/g,function(c,e){return a.jsify((new a.Variable("@"+e,d.index)).eval(b))});try{f=new Function("return ("+f+")")}catch(g){throw{message:"JavaScript evaluation error: `"+f+"`",index:this.index}}for(var h in b.frames[0].variables())e[h.slice(1)]={value:b.frames[0].variables()[h].value,toJS:function(){return this.value.eval(b).toCSS()}};try{c=f.call(e)}catch(g){throw{message:"JavaScript evaluation error: '"+g.name+": "+g.message+"'",index:this.index}}return typeof c=="string"?new a.Quoted('"'+c+'"',c,this.escaped,this.index):Array.isArray(c)?new a.Anonymous(c.join(", ")):new a.Anonymous(c)}}}(c("../tree")),function(a){a.Keyword=function(a){this.value=a},a.Keyword.prototype={eval:function(){return this},toCSS:function(){return this.value},compare:function(b){return b instanceof a.Keyword?b.value===this.value?0:1:-1}},a.True=new a.Keyword("true"),a.False=new a.Keyword("false")}(c("../tree")),function(a){a.Media=function(b,c){var d=new a.Element("&",null,0),e=[new a.Selector([d])];this.features=new a.Value(c),this.ruleset=new a.Ruleset(e,b),this.ruleset.allowImports=!0},a.Media.prototype={toCSS:function(a,b){var c=this.features.toCSS(b);return this.ruleset.root=a.length===0||a[0].multiMedia,"@media "+c+(b.compress?"{":" {\n ")+this.ruleset.toCSS(a,b).trim().replace(/\n/g,"\n ")+(b.compress?"}":"\n}\n")},eval:function(b){b.mediaBlocks||(b.mediaBlocks=[],b.mediaPath=[]);var c=b.mediaBlocks.length;b.mediaPath.push(this),b.mediaBlocks.push(this);var d=new a.Media([],[]);return d.features=this.features.eval(b),b.frames.unshift(this.ruleset),d.ruleset=this.ruleset.eval(b),b.frames.shift(),b.mediaBlocks[c]=d,b.mediaPath.pop(),b.mediaPath.length===0?d.evalTop(b):d.evalNested(b)},variable:function(b){return a.Ruleset.prototype.variable.call(this.ruleset,b)},find:function(){return a.Ruleset.prototype.find.apply(this.ruleset,arguments)},rulesets:function(){return a.Ruleset.prototype.rulesets.apply(this.ruleset)},evalTop:function(b){var c=this;if(b.mediaBlocks.length>1){var d=new a.Element("&",null,0),e=[new a.Selector([d])];c=new a.Ruleset(e,b.mediaBlocks),c.multiMedia=!0}return delete b.mediaBlocks,delete b.mediaPath,c},evalNested:function(b){var c,d,e=b.mediaPath.concat([this]);for(c=0;c<e.length;c++)d=e[c].features instanceof a.Value?e[c].features.value:e[c].features,e[c]=Array.isArray(d)?d:[d];return this.features=new a.Value(this.permute(e).map(function(b){b=b.map(function(b){return b.toCSS?b:new a.Anonymous(b)});for(c=b.length-1;c>0;c--)b.splice(c,0,new a.Anonymous("and"));return new a.Expression(b)})),new a.Ruleset([],[])},permute:function(a){if(a.length===0)return[];if(a.length===1)return a[0];var b=[],c=this.permute(a.slice(1));for(var d=0;d<c.length;d++)for(var e=0;e<a[0].length;e++)b.push([a[0][e]].concat(c[d]));return b}}}(c("../tree")),function(a){a.mixin={},a.mixin.Call=function(b,c,d,e,f){this.selector=new a.Selector(b),this.arguments=c,this.index=d,this.filename=e,this.important=f},a.mixin.Call.prototype={eval:function(a){var b,c,d=[],e=!1;for(var f=0;f<a.frames.length;f++)if((b=a.frames[f].find(this.selector)).length>0){c=this.arguments&&this.arguments.map(function(b){return b.eval(a)});for(var g=0;g<b.length;g++)if(b[g].match(c,a))try{Array.prototype.push.apply(d,b[g].eval(a,this.arguments,this.important).rules),e=!0}catch(h){throw{message:h.message,index:this.index,filename:this.filename,stack:h.stack}}if(e)return d;throw{type:"Runtime",message:"No matching definition was found for `"+this.selector.toCSS().trim()+"("+this.arguments.map(function(a){return a.toCSS()}).join(", ")+")`",index:this.index,filename:this.filename}}throw{type:"Name",message:this.selector.toCSS().trim()+" is undefined",index:this.index,filename:this.filename}}},a.mixin.Definition=function(b,c,d,e,f){this.name=b,this.selectors=[new a.Selector([new a.Element(null,b)])],this.params=c,this.condition=e,this.variadic=f,this.arity=c.length,this.rules=d,this._lookups={},this.required=c.reduce(function(a,b){return!b.name||b.name&&!b.value?a+1:a},0),this.parent=a.Ruleset.prototype,this.frames=[]},a.mixin.Definition.prototype={toCSS:function(){return""},variable:function(a){return this.parent.variable.call(this,a)},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(b,c){var d=new a.Ruleset(null,[]),e;for(var f=0,g,h;f<this.params.length;f++)if(h=this.params[f].name)if(this.params[f].variadic&&c){e=[];for(var i=f;i<c.length;i++)e.push(c[i].eval(b));d.rules.unshift(new a.Rule(h,(new a.Expression(e)).eval(b)))}else{if(!(g=c&&c[f]||this.params[f].value))throw{type:"Runtime",message:"wrong number of arguments for "+this.name+" ("+c.length+" for "+this.arity+")"};d.rules.unshift(new a.Rule(h,g.eval(b)))}return d},eval:function(b,c,d){var e=this.evalParams(b,c),f,g=[],h,i;for(var j=0;j<Math.max(this.params.length,c&&c.length);j++)g.push(c[j]||this.params[j].value);return e.rules.unshift(new a.Rule("@arguments",(new a.Expression(g)).eval(b))),h=d?this.rules.map(function(b){return new a.Rule(b.name,b.value,"!important",b.index)}):this.rules.slice(0),(new a.Ruleset(null,h)).eval({frames:[this,e].concat(this.frames,b.frames)})},match:function(a,b){var c=a&&a.length||0,d,e;if(!this.variadic){if(c<this.required)return!1;if(c>this.params.length)return!1;if(this.required>0&&c>this.params.length)return!1}if(this.condition&&!this.condition.eval({frames:[this.evalParams(b,a)].concat(b.frames)}))return!1;d=Math.min(c,this.arity);for(var f=0;f<d;f++)if(!this.params[f].name&&a[f].eval(b).toCSS()!=this.params[f].value.eval(b).toCSS())return!1;return!0}}}(c("../tree")),function(a){a.Operation=function(a,b){this.op=a.trim(),this.operands=b},a.Operation.prototype.eval=function(b){var c=this.operands[0].eval(b),d=this.operands[1].eval(b),e;if(c instanceof a.Dimension&&d instanceof a.Color){if(this.op!=="*"&&this.op!=="+")throw{name:"OperationError",message:"Can't substract or divide a color from a number"};e=d,d=c,c=e}return c.operate(this.op,d)},a.operate=function(a,b,c){switch(a){case"+":return b+c;case"-":return b-c;case"*":return b*c;case"/":return b/c}}}(c("../tree")),function(a){a.Paren=function(a){this.value=a},a.Paren.prototype={toCSS:function(a){return"("+this.value.toCSS(a)+")"},eval:function(b){return new a.Paren(this.value.eval(b))}}}(c("../tree")),function(a){a.Quoted=function(a,b,c,d){this.escaped=c,this.value=b||"",this.quote=a.charAt(0),this.index=d},a.Quoted.prototype={toCSS:function(){return this.escaped?this.value:this.quote+this.value+this.quote},eval:function(b){var c=this,d=this.value.replace(/`([^`]+)`/g,function(d,e){return(new a.JavaScript(e,c.index,!0)).eval(b).value}).replace(/@\{([\w-]+)\}/g,function(d,e){var f=(new a.Variable("@"+e,c.index)).eval(b);return"value"in f?f.value:f.toCSS()});return new a.Quoted(this.quote+d+this.quote,d,this.escaped,this.index)}}}(c("../tree")),function(a){a.Rule=function(b,c,d,e,f){this.name=b,this.value=c instanceof a.Value?c:new a.Value([c]),this.important=d?" "+d.trim():"",this.index=e,this.inline=f||!1,b.charAt(0)==="@"?this.variable=!0:this.variable=!1},a.Rule.prototype.toCSS=function(a){return this.variable?"":this.name+(a.compress?":":": ")+this.value.toCSS(a)+this.important+(this.inline?"":";")},a.Rule.prototype.eval=function(b){return new a.Rule(this.name,this.value.eval(b),this.important,this.index,this.inline)},a.Shorthand=function(a,b){this.a=a,this.b=b},a.Shorthand.prototype={toCSS:function(a){return this.a.toCSS(a)+"/"+this.b.toCSS(a)},eval:function(){return this}}}(c("../tree")),function(a){a.Ruleset=function(a,b,c){this.selectors=a,this.rules=b,this._lookups={},this.strictImports=c},a.Ruleset.prototype={eval:function(b){var c=this.selectors&&this.selectors.map(function(a){return a.eval(b)}),d=new a.Ruleset(c,this.rules.slice(0),this.strictImports);d.root=this.root,d.allowImports=this.allowImports,b.frames.unshift(d);if(d.root||d.allowImports||!d.strictImports)for(var e=0;e<d.rules.length;e++)d.rules[e]instanceof a.Import&&Array.prototype.splice.apply(d.rules,[e,1].concat(d.rules[e].eval(b)));for(var e=0;e<d.rules.length;e++)d.rules[e]instanceof a.mixin.Definition&&(d.rules[e].frames=b.frames.slice(0));for(var e=0;e<d.rules.length;e++)d.rules[e]instanceof a.mixin.Call&&Array.prototype.splice.apply(d.rules,[e,1].concat(d.rules[e].eval(b)));for(var e=0,f;e<d.rules.length;e++)f=d.rules[e],f instanceof a.mixin.Definition||(d.rules[e]=f.eval?f.eval(b):f);return b.frames.shift(),d},match:function(a){return!a||a.length===0},variables:function(){return this._variables?this._variables:this._variables=this.rules.reduce(function(b,c){return c instanceof a.Rule&&c.variable===!0&&(b[c.name]=c),b},{})},variable:function(a){return this.variables()[a]},rulesets:function(){return this._rulesets?this._rulesets:this._rulesets=this.rules.filter(function(b){return b instanceof a.Ruleset||b instanceof a.mixin.Definition})},find:function(b,c){c=c||this;var d=[],e,f,g=b.toCSS();return g in this._lookups?this._lookups[g]:(this.rulesets().forEach(function(e){if(e!==c)for(var g=0;g<e.selectors.length;g++)if(f=b.match(e.selectors[g])){b.elements.length>e.selectors[g].elements.length?Array.prototype.push.apply(d,e.find(new a.Selector(b.elements.slice(1)),c)):d.push(e);break}}),this._lookups[g]=d)},toCSS:function(b,c){var d=[],e=[],f=[],g=[],h,i;this.root||(b.length===0?g=this.selectors.map(function(a){return[a]}):this.joinSelectors(g,b,this.selectors));for(var j=0;j<this.rules.length;j++)i=this.rules[j],i.rules||i instanceof a.Directive||i instanceof a.Media?f.push(i.toCSS(g,c)):i instanceof a.Comment?i.silent||(this.root?f.push(i.toCSS(c)):e.push(i.toCSS(c))):i.toCSS&&!i.variable?e.push(i.toCSS(c)):i.value&&!i.variable&&e.push(i.value.toString());return f=f.join(""),this.root?d.push(e.join(c.compress?"":"\n")):e.length>0&&(h=g.map(function(a){return a.map(function(a){return a.toCSS(c)}).join("").trim()}).join(c.compress?",":",\n"),d.push(h,(c.compress?"{":" {\n ")+e.join(c.compress?"":"\n ")+(c.compress?"}":"\n}\n"))),d.push(f),d.join("")+(c.compress?"\n":"")},joinSelectors:function(a,b,c){for(var d=0;d<c.length;d++)this.joinSelector(a,b,c[d])},joinSelector:function(b,c,d){var e=[],f=[],g=[],h=[],i=!1,j;for(var k=0;k<d.elements.length;k++)j=d.elements[k],j.combinator.value.charAt(0)==="&"&&(i=!0),i?h.push(j):g.push(j);i||(h=g,g=[]),g.length>0&&e.push(new a.Selector(g)),h.length>0&&f.push(new a.Selector(h));for(var l=0;l<c.length;l++)b.push(e.concat(c[l]).concat(f))}}}(c("../tree")),function(a){a.Selector=function(a){this.elements=a,this.elements[0].combinator.value===""&&(this.elements[0].combinator.value=" ")},a.Selector.prototype.match=function(a){var b=this.elements.length,c=a.elements.length,d=Math.min(b,c);if(b<c)return!1;for(var e=0;e<d;e++)if(this.elements[e].value!==a.elements[e].value)return!1;return!0},a.Selector.prototype.eval=function(b){return new a.Selector(this.elements.map(function(a){return a.eval(b)}))},a.Selector.prototype.toCSS=function(a){return this._css?this._css:this._css=this.elements.map(function(b){return typeof b=="string"?" "+b.trim():b.toCSS(a)}).join("")}}(c("../tree")),function(b){b.URL=function(b,c){b.data?this.attrs=b:(typeof a!="undefined"&&!/^(?:https?:\/\/|file:\/\/|data:|\/)/.test(b.value)&&c.length>0&&(b.value=c[0]+(b.value.charAt(0)==="/"?b.value.slice(1):b.value)),this.value=b,this.paths=c)},b.URL.prototype={toCSS:function(){return"url("+(this.attrs?"data:"+this.attrs.mime+this.attrs.charset+this.attrs.base64+this.attrs.data:this.value.toCSS())+")"},eval:function(a){return this.attrs?this:new b.URL(this.value.eval(a),this.paths)}}}(c("../tree")),function(a){a.Value=function(a){this.value=a,this.is="value"},a.Value.prototype={eval:function(b){return this.value.length===1?this.value[0].eval(b):new a.Value(this.value.map(function(a){return a.eval(b)}))},toCSS:function(a){return this.value.map(function(b){return b.toCSS(a)}).join(a.compress?",":", ")}}}(c("../tree")),function(a){a.Variable=function(a,b,c){this.name=a,this.index=b,this.file=c},a.Variable.prototype={eval:function(b){var c,d,e=this.name;e.indexOf("@@")==0&&(e="@"+(new a.Variable(e.slice(1))).eval(b).value);if(c=a.find(b.frames,function(a){if(d=a.variable(e))return d.value.eval(b)}))return c;throw{type:"Name",message:"variable "+e+" is undefined",filename:this.file,index:this.index}}}}(c("../tree")),function(a){a.find=function(a,b){for(var c=0,d;c<a.length;c++)if(d=b.call(a,a[c]))return d;return null},a.jsify=function(a){return Array.isArray(a.value)&&a.value.length>1?"["+a.value.map(function(a){return a.toCSS(!1)}).join(", ")+"]":a.toCSS(!1)}}(c("./tree"));var f=location.protocol==="file:"||location.protocol==="chrome:"||location.protocol==="chrome-extension:"||location.protocol==="resource:";d.env=d.env||(location.hostname=="127.0.0.1"||location.hostname=="0.0.0.0"||location.hostname=="localhost"||location.port.length>0||f?"development":"production"),d.env="production",d.async=!1,d.poll=d.poll||(f?1e3:1500),d.watch=function(){return this.watchMode=!0},d.unwatch=function(){return this.watchMode=!1},d.env==="development"?(d.optimization=0,/!watch/.test(location.hash)&&d.watch(),d.watchTimer=setInterval(function(){d.watchMode&&m(function(a,b,c,d,e){b&&p(b.toCSS(),d,e.lastModified)})},d.poll)):d.optimization=3;var g;try{g=typeof a.localStorage=="undefined"?null:a.localStorage}catch(h){g=null}var i=document.getElementsByTagName("link"),j=/^text\/(x-)?less$/;d.sheets=[];for(var k=0;k<i.length;k++)(i[k].rel==="stylesheet/less"||i[k].rel.match(/stylesheet/)&&i[k].type.match(j))&&d.sheets.push(i[k]);d.refresh=function(a){var b,c;b=c=new Date,m(function(a,d,e,f,g){g.local?t("loading "+f.href+" from cache."):(t("parsed "+f.href+" successfully."),p(d.toCSS(),f,g.lastModified)),t("css for "+f.href+" generated in "+(new Date-c)+"ms"),g.remaining===0&&t("css generated in "+(new Date-b)+"ms"),c=new Date},a),l()},d.refreshStyles=l,d.refresh(d.env==="development")})(window);
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment