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/*
SystemJS CommonJS Format
*/
(function() {
// CJS Module Format
// require('...') || exports[''] = ... || exports.asd = ... || module.exports = ...
var cjsExportsRegEx = /(?:^\uFEFF?|[^$_a-zA-Z\xA0-\uFFFF.])(exports\s*(\[['"]|\.)|module(\.exports|\['exports'\]|\["exports"\])\s*(\[['"]|[=,\.]))/;
// RegEx adjusted from https://github.com/jbrantly/yabble/blob/master/lib/yabble.js#L339
var cjsRequireRegEx = /(?:^\uFEFF?|[^$_a-zA-Z\xA0-\uFFFF."'])require\s*\(\s*("[^"\\]*(?:\\.[^"\\]*)*"|'[^'\\]*(?:\\.[^'\\]*)*')\s*\)/g;
var commentRegEx = /(^|[^\\])(\/\*([\s\S]*?)\*\/|([^:]|^)\/\/(.*)$)/mg;
var stringRegEx = /("[^"\\\n\r]*(\\.[^"\\\n\r]*)*"|'[^'\\\n\r]*(\\.[^'\\\n\r]*)*')/g;
// used to support leading #!/usr/bin/env in scripts as supported in Node
var hashBangRegEx = /^\#\!.*/;
function getCJSDeps(source) {
cjsRequireRegEx.lastIndex = commentRegEx.lastIndex = stringRegEx.lastIndex = 0;
var deps = [];
var match;
// track string and comment locations for unminified source
var stringLocations = [], commentLocations = [];
function inLocation(locations, match) {
for (var i = 0; i < locations.length; i++)
if (locations[i][0] < match.index && locations[i][1] > match.index)
return true;
return false;
}
if (source.length / source.split('\n').length < 200) {
while (match = stringRegEx.exec(source))
stringLocations.push([match.index, match.index + match[0].length]);
// TODO: track template literals here before comments
while (match = commentRegEx.exec(source)) {
// only track comments not starting in strings
if (!inLocation(stringLocations, match))
commentLocations.push([match.index + match[1].length, match.index + match[0].length - 1]);
}
}
while (match = cjsRequireRegEx.exec(source)) {
// ensure we're not within a string or comment location
if (!inLocation(stringLocations, match) && !inLocation(commentLocations, match)) {
var dep = match[1].substr(1, match[1].length - 2);
// skip cases like require('" + file + "')
if (dep.match(/"|'/))
continue;
// trailing slash requires are removed as they don't map mains in SystemJS
if (dep[dep.length - 1] == '/')
dep = dep.substr(0, dep.length - 1);
deps.push(dep);
}
}
return deps;
}
hook('instantiate', function(instantiate) {
return function(load) {
var loader = this;
if (!load.metadata.format) {
cjsExportsRegEx.lastIndex = 0;
cjsRequireRegEx.lastIndex = 0;
if (cjsRequireRegEx.exec(load.source) || cjsExportsRegEx.exec(load.source))
load.metadata.format = 'cjs';
}
if (load.metadata.format == 'cjs') {
var metaDeps = load.metadata.deps;
var deps = load.metadata.cjsRequireDetection === false ? [] : getCJSDeps(load.source);
for (var g in load.metadata.globals)
if (load.metadata.globals[g])
deps.push(load.metadata.globals[g]);
var entry = createEntry();
load.metadata.entry = entry;
entry.deps = deps;
entry.executingRequire = true;
entry.execute = function(_require, exports, module) {
function require(name) {
if (name[name.length - 1] == '/')
name = name.substr(0, name.length - 1);
return _require.apply(this, arguments);
}
require.resolve = function(name) {
return loader.get('@@cjs-helpers').requireResolve(name, module.id);
};
// support module.paths ish
module.paths = [];
module.require = _require;
// ensure meta deps execute first
if (!load.metadata.cjsDeferDepsExecute)
for (var i = 0; i < metaDeps.length; i++)
require(metaDeps[i]);
var pathVars = loader.get('@@cjs-helpers').getPathVars(module.id);
var __cjsWrapper = {
exports: exports,
args: [require, exports, module, pathVars.filename, pathVars.dirname, __global, __global]
};
var cjsWrapper = "(function(require, exports, module, __filename, __dirname, global, GLOBAL";
// add metadata.globals to the wrapper arguments
if (load.metadata.globals)
for (var g in load.metadata.globals) {
__cjsWrapper.args.push(require(load.metadata.globals[g]));
cjsWrapper += ", " + g;
}
// disable AMD detection
var define = __global.define;
__global.define = undefined;
__global.__cjsWrapper = __cjsWrapper;
load.source = cjsWrapper + ") {" + load.source.replace(hashBangRegEx, '') + "\n}).apply(__cjsWrapper.exports, __cjsWrapper.args);";
__exec.call(loader, load);
__global.__cjsWrapper = undefined;
__global.define = define;
};
}
return instantiate.call(loader, load);
};
});
})();
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