337 lines
12 KiB
JavaScript
337 lines
12 KiB
JavaScript
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/**
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* This file is licensed under the GPLv3 license (c) Aleksi 'Allexit' Talarmo
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* See COPYING-GPL and README.md for more information.
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*/
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var JavaScriptX;
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(function (JavaScriptX) {
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class JSX {
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constructor() {
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this.environmentVariables = {
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"system": "~/.system/"
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};
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}
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create(terminal, stdio, args) {
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this.terminal = terminal;
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this.stdio = stdio;
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this.filesystem = new FileSystem();
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this.currentFolder = this.filesystem.rootFolder;
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let system = new Folder(".system", true);
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this.filesystem.rootFolder.addFile(system);
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system.addFile(new BinaryFile("echo", new JSXCommands.Echo()));
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system.addFile(new BinaryFile("ls", new JSXCommands.List(this)));
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system.addFile(new BinaryFile("cd", new JSXCommands.ChangeDirectory(this)));
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system.addFile(new BinaryFile("mkdir", new JSXCommands.MakeDirectory(this)));
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system.addFile(new BinaryFile("woman", new JSXCommands.Woman(this)));
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system.addFile(new BinaryFile("cat", new JSXCommands.Caternate(this)));
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system.addFile(new BinaryFile("touch", new JSXCommands.Touch(this)));
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system.addFile(new BinaryFile("jedi", new JSXCommands.JEdi(this)));
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this.filesystem.rootFolder.addFile(new TextFile("textfile.txt", "Hello, world!"));
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stdio.println("Welcome to ");
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stdio.print("JSX", "red");
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stdio.print(" version ");
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stdio.print("0.4.0 beta", "green");
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stdio.print(" (K) All rites reversed");
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stdio.println("\nTo get started: call a ");
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stdio.print("woman", "blue");
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stdio.print(" for help.");
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stdio.refresh();
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this.takeCommand();
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}
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/**
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* Inherited from Program-interface. Not to be manually called.
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*/
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enable() {
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this.takeCommand();
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}
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/**
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* Inherited from Program-interface. Not to be manually called.
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*/
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disable() {
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}
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/**
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* Inherited from Program-interface. Not to be manually called.
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*/
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onClose() {
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return true;
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}
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/**
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* Utility function. Writes a line such as 'Anonymous@localhost: ~/' and then reads line.
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* The result of the readline is used to call commands and such.
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*/
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takeCommand() {
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let name = window.location.hostname || "localhost";
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this.stdio.println(`\nAnonymous@${name}`, "yellow");
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this.stdio.print(":");
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let path = this.currentFolder.getPath();
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this.stdio.print(path, "green");
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this.stdio.readline({
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callback: (result) => {
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let split = result.split(" ");
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let command = split[0];
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let args = split.slice(1, split.length);
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for (let v in this.environmentVariables) {
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if (command == v) {
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command = this.environmentVariables[v];
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break;
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}
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let file = this.findPath(this.environmentVariables[v]);
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if (file instanceof Folder) {
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for (let i = 0; i < file.files.length; i++) {
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let f = file.files[i];
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if (command == f.name) {
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command = f.getPath();
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break;
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}
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}
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}
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}
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for (let i = 0; i < args.length; i++) {
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let regexp = /\${[\w]*}/g;
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let arg = args[i];
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let result;
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while ((result = regexp.exec(arg)) != null) {
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let match = result[0];
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let v = match.substr(2, match.length - 3);
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let toReplace = null;
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for (let env in this.environmentVariables) {
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if (env == v) {
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toReplace = this.environmentVariables[env];
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break;
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}
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}
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if (toReplace != null) {
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args[i] = arg.replace(new RegExp("\\" + match, "g"), toReplace);
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}
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}
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}
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let file = this.findPath(command);
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if (file && (command.startsWith("./")
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|| command.startsWith("~/")
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|| command.startsWith("../"))) {
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if (file instanceof BinaryFile) {
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file.run(this.terminal, args);
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return;
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}
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else {
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this.stdio.println(`${file.name} is not executable`);
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}
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}
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else {
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if (command.startsWith(".")) {
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this.stdio.println(`File not found`);
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}
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else {
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this.stdio.println(`Command not found`);
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}
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}
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this.takeCommand();
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},
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prefix: " > ",
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printAfterDone: true,
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style: "red"
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});
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this.stdio.refresh();
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}
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/**
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* Returns the file at the specified path.
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* Example usage: findPath("~/somefolder/hello/");
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*/
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findPath(path) {
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let originalPath = path.slice();
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let pathPieces = path.split("/");
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let relativeFolder = this.currentFolder;
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let fileFound = null;
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for (let i = 0; i < pathPieces.length; i++) {
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let p = pathPieces[i];
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if (p == "") {
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if (relativeFolder == null) {
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fileFound = null;
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break;
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}
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if (i == pathPieces.length - 1 && relativeFolder instanceof Folder) {
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fileFound = relativeFolder;
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break;
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}
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fileFound = null;
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break;
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}
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else if (p == "..") {
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if (i == 0) {
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if (this.currentFolder.parentFolder == null) {
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fileFound = null;
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break;
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}
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relativeFolder = this.currentFolder.parentFolder;
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}
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else if (relativeFolder == null) {
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fileFound = null;
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break;
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}
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else if (relativeFolder.parentFolder == null) {
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fileFound = null;
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break;
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}
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else {
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relativeFolder = relativeFolder.parentFolder;
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}
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if (i == pathPieces.length - 1) {
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fileFound = relativeFolder;
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break;
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}
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}
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else if (p == ".") {
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if (i == 0) {
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relativeFolder = this.currentFolder;
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}
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if (i == pathPieces.length - 1) {
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fileFound = relativeFolder;
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break;
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}
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continue;
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}
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else if (p == "~" && i == 0) {
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relativeFolder = this.filesystem.rootFolder;
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if (i == pathPieces.length - 1) {
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fileFound = relativeFolder;
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break;
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}
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continue;
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}
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else if (i == pathPieces.length - 1) {
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if (relativeFolder == null) {
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fileFound = null;
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break;
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}
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let idx = relativeFolder.files.map((f) => { return f.name; })
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.indexOf(p);
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let found = relativeFolder.files[idx];
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if (idx == -1) {
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break;
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}
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else {
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fileFound = found;
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}
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}
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else {
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if (relativeFolder == null) {
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fileFound = null;
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break;
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}
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let idx = relativeFolder.files.map((f) => { return f.name; })
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.indexOf(p);
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let found = relativeFolder.files[idx];
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if (idx == -1) {
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break;
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}
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else if (found instanceof Folder) {
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relativeFolder = found;
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}
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else {
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break;
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}
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}
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}
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return fileFound;
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}
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}
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JavaScriptX.JSX = JSX;
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class FileSystem {
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constructor() {
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this.rootFolder = new Folder("~");
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}
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}
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class File {
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constructor(name, hidden = false) {
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this.created = new Date().getTime();
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this.name = name;
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this.hidden = hidden;
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}
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/**
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* Returns the string path of the file.
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* Example: If the file is in root folder (~) and inside a 'somefolder'-folder, it would return "~/somefolder/<filename>"
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*/
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getPath() {
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let path = "";
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let curr = this;
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while (curr != null) {
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if (curr instanceof Folder || path != "") {
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path = "/" + path;
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}
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path = curr.name + path;
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curr = curr.parentFolder;
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}
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return path;
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}
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}
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/**
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* File that contains other files.
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*/
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class Folder extends File {
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constructor(name, hidden = false) {
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super(name, hidden);
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this.files = [];
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}
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/**
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* Add file to this folder.
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*/
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addFile(file) {
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this.files.push(file);
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file.parentFolder = this;
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}
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}
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JavaScriptX.Folder = Folder;
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/**
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* File that contains JavaScript program which can be run
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*/
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class BinaryFile extends File {
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constructor(name, program, hidden = false) {
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super(name, hidden);
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this.program = program;
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}
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/**
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* Launch the program specified in this file.
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*/
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run(terminal, args) {
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terminal.launchProgram(this.program, args);
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}
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}
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JavaScriptX.BinaryFile = BinaryFile;
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/**
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* File that contains text
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*/
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class TextFile extends File {
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constructor(name, content = "", hidden = false) {
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super(name, hidden);
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this.content = content;
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}
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readContent() {
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return this.content.slice();
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}
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setContent(content) {
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this.content = content;
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}
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}
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JavaScriptX.TextFile = TextFile;
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/**
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* Formats the given string to a certain length and alignment.
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* Example: formatToLength("hello", 10, "right") -> ".....hello" (where dots represent spaces)
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*/
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function formatToLength(text, length, alignment = "left") {
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if (alignment == "left") {
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text += " ".repeat(length);
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return text.substr(0, text.length - (text.length - length));
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}
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else if (alignment == "right") {
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text = " ".repeat(length) + text;
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return text.substr(-length);
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}
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else if (alignment == "center") {
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let left = Math.max(0, Math.floor(length / 2 - text.length / 2));
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let right = Math.max(0, Math.ceil(length / 2 - text.length / 2));
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return " ".repeat(left) + text + " ".repeat(right);
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}
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return null;
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}
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JavaScriptX.formatToLength = formatToLength;
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})(JavaScriptX || (JavaScriptX = {}));
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