var contexts = {}; module.exports = contexts;
var copyFromOriginal = function copyFromOriginal(original, destination, propertiesToCopy) {
if (!original) { return; } for (var i = 0; i < propertiesToCopy.length; i++) { if (original.hasOwnProperty(propertiesToCopy[i])) { destination[propertiesToCopy[i]] = original[propertiesToCopy[i]]; } }
};
/*
parse is used whilst parsing */
var parseCopyProperties = [
// options 'paths', // option - unmodified - paths to search for imports on 'relativeUrls', // option - whether to adjust URL's to be relative 'rootpath', // option - rootpath to append to URL's 'strictImports', // option - 'insecure', // option - whether to allow imports from insecure ssl hosts 'dumpLineNumbers', // option - whether to dump line numbers 'compress', // option - whether to compress 'syncImport', // option - whether to import synchronously 'chunkInput', // option - whether to chunk input. more performant but causes parse issues. 'mime', // browser only - mime type for sheet import 'useFileCache', // browser only - whether to use the per file session cache // context 'processImports', // option & context - whether to process imports. if false then imports will not be imported. // Used by the import manager to stop multiple import visitors being created. 'pluginManager' // Used as the plugin manager for the session
];
contexts.Parse = function(options) {
copyFromOriginal(options, this, parseCopyProperties); if (typeof this.paths === "string") { this.paths = [this.paths]; }
};
var evalCopyProperties = [
'paths', // additional include paths 'compress', // whether to compress 'ieCompat', // whether to enforce IE compatibility (IE8 data-uri) 'strictMath', // whether math has to be within parenthesis 'strictUnits', // whether units need to evaluate correctly 'sourceMap', // whether to output a source map 'importMultiple', // whether we are currently importing multiple copies 'urlArgs', // whether to add args into url tokens 'javascriptEnabled',// option - whether JavaScript is enabled. if undefined, defaults to true 'pluginManager', // Used as the plugin manager for the session 'importantScope' // used to bubble up !important statements ];
contexts.Eval = function(options, frames) {
copyFromOriginal(options, this, evalCopyProperties); if (typeof this.paths === "string") { this.paths = [this.paths]; } this.frames = frames || []; this.importantScope = this.importantScope || [];
};
contexts.Eval.prototype.inParenthesis = function () {
if (!this.parensStack) { this.parensStack = []; } this.parensStack.push(true);
};
contexts.Eval.prototype.outOfParenthesis = function () {
this.parensStack.pop();
};
contexts.Eval.prototype.isMathOn = function () {
return this.strictMath ? (this.parensStack && this.parensStack.length) : true;
};
contexts.Eval.prototype.isPathRelative = function (path) {
return !/^(?:[a-z-]+:|\/|#)/i.test(path);
};
contexts.Eval.prototype.normalizePath = function( path ) {
var segments = path.split("/").reverse(), segment; path = []; while (segments.length !== 0 ) { segment = segments.pop(); switch( segment ) { case ".": break; case "..": if ((path.length === 0) || (path[path.length - 1] === "..")) { path.push( segment ); } else { path.pop(); } break; default: path.push( segment ); break; } } return path.join("/");
};
//todo - do the same for the toCSS ?