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mirror of https://github.com/Jermolene/TiddlyWiki5 synced 2024-11-17 15:24:50 +00:00
TiddlyWiki5/tiddlywiki5/BootLoader.js
2012-01-14 17:23:43 +00:00

67 lines
1.9 KiB
JavaScript

(function() {
/*jslint node: true */
/*global modules: false */
"use strict";
/*
Given the absolute path of a srcModule, and a relative reference to a dstModule, return the fully resolved module name
*/
function resolveModuleName(srcModule,dstModule) {
var src = srcModule.split("/"),
dst = dstModule.split("/"),
c;
// If the destination starts with ./ or ../ then it's a relative reference to an ordinary module
if(dstModule.substr(0,2) === "./" || dstModule.substr(0,3) === "../" ) {
// Remove the filename part of the src path
src.splice(src.length-1,1);
// Process the destination path bit by bit
while(dst.length > 0) {
c = dst.shift();
switch(c) {
case ".": // Ignore dots
break;
case "..": // Slice off the last src directory for a double dot
src.splice(src.length-1,1);
break;
default: // Copy everything else across
src.push(c);
break;
}
}
return src.join("/");
// If the destination starts with "/" then it's an absolute path
} else if(dstModule.substr(0,1) === "/") {
return dst.join("/");
} else {
// If there was no / or ./ or ../ then it's a built in module and the name doesn't need resolving
return dstModule;
}
}
/*
Execute the module named 'modName'. The name can optionally be relative to the module named 'modRoot'
*/
function executeModule(modName,modRoot) {
var name = modRoot ? resolveModuleName(modRoot,modName) : modName,
require = function(modRequire) {
return executeModule(modRequire,name);
},
exports = {},
module = modules[name];
if(!module) {
throw new Error("Cannot find module named '" + modName + "' required by module '" + modRoot + "', resolved to " + name);
}
if(module.exports) {
return module.exports;
} else {
module.exports = {};
module.module(require,module.exports,module);
return module.exports;
}
}
// Execute the main module
var app = new (executeModule("js/App.js").App)();
})();