Remove command line support. Depend on CDN for polyfills
This commit is contained in:
Joshua Bell
parent
fa1695d752
commit
a8f92fad0a
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@ -1,3 +0,0 @@
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[submodule "polyfill"]
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path = polyfill
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url = https://github.com/inexorabletash/polyfill.git
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@ -3,8 +3,6 @@ jsbasic - Applesoft BASIC in JavaScript
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This is hosted for playing with at http://inexorabletash.github.io/jsbasic/
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Use `git clone --recursive` to get [polyfill](http://github.com/inexorabletash/polyfill) for older browsers.
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Notes & Known Issues
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--------------------
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* The BASIC program is compiled to JavaScript before execution. Syntax errors are therefore detected at compile-time rather than at run-time as on a traditional interpreter. For example, the following program would run without errors on an Apple since the erroneous second statement is never reached. `10 END : CHR$(PRINT)`
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@ -23,8 +21,3 @@ Notes & Known Issues
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* `CHR$()` values > 255 do interesting things
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* `HSCRN(x, y)` allows probing the hi-res screen
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* hexadecimal literals e.g. `$C010` can be used as numbers
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You can run your basic programs from the command line (with only basic text input and output, and no graphics or DOS commands):
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* Clone the repository locally
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* On Windows, run from a command prompt via: `cscript.exe cbasic.js your_program.txt`
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* On Mac/Linux, install Mozilla Rhino, run from the command prompt via: `java -jar PATH_TO/js.jar cbasic.js your_program.txt`
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3
basic.js
3
basic.js
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@ -28,9 +28,6 @@
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// // driver will also be called after input is unblocked
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// // driver may want to yield via setTimeout() after N steps
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// ES6 polyfill:
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if (!String.prototype.repeat) { String.prototype.repeat = function(n){return Array(n+1).join(this); }; }
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this.basic = (function() {
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var basic = {
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143
cbasic.js
143
cbasic.js
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@ -1,143 +0,0 @@
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// Console:
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// For Mozilla Rhino: rhino cbasic.js your_basic_program.txt
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// For Windows CScript: cscript.exe cbasic.js your_basic_program.txt
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if(!Object.keys){Object.keys=function(o){if(o!==Object(o))throw new TypeError();var ret=[],p;for(p in o)if(Object.prototype.hasOwnProperty.call(o,p))ret.push(p);return ret;};}
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if(!Array.prototype.forEach){Array.prototype.forEach=function(fun){if(this===void 0||this===null){throw new TypeError();}var t=Object(this);var len=t.length>>>0;if(typeof fun!=="function"){throw new TypeError();}var thisp=arguments[1],i;for(i=0;i<len;i++){if(i in t){fun.call(thisp,t[i],i,t);}}};}
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if(!Array.prototype.map){Array.prototype.map=function(fun){if(this===void 0||this===null){throw new TypeError();}var t=Object(this);var len=t.length>>>0;if(typeof fun!=="function"){throw new TypeError();}var res=[];res.length=len;var thisp=arguments[1],i;for(i=0;i<len;i++){if(i in t){res[i]=fun.call(thisp,t[i],i,t);}}return res;};}
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if(!Array.prototype.reduce){Array.prototype.reduce=function(fun){if(this===void 0||this===null){throw new TypeError();}var t=Object(this);var len=t.length>>>0;if(typeof fun!=="function"){throw new TypeError();}if(len===0&&arguments.length===1){throw new TypeError();}var k=0;var accumulator;if(arguments.length>=2){accumulator=arguments[1];}else{do{if(k in t){accumulator=t[k++];break;}if(++k>=len){throw new TypeError();}}while(true);}while(k<len){if(k in t){accumulator=fun.call(undefined,accumulator,t[k],k,t);}k++;}return accumulator;};}
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var arguments, args = arguments;
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var host = (function() {
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if (typeof WScript === 'object') {
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// Microsoft Windows Scripting engine
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args = (function() {
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var a = [];
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for (var i = 0; i < WScript.Arguments.length; ++i) {
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a.push(WScript.Arguments(i));
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}
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return a;
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}());
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return {
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name: "cscript.exe",
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fetch: function(filename) {
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var file = new ActiveXObject("Scripting.FileSystemObject").OpenTextFile(new ActiveXObject("WScript.Shell").CurrentDirectory + "\\" + filename),
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data = file.ReadAll();
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file.Close();
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return data;
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},
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console: {
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gets: function() { return WScript.StdIn.ReadLine(); },
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getc: function() { return WScript.StdIn.ReadLine().substring(0, 1); },
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puts: function(s) { WScript.StdOut.Write(s); },
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putc: function(c) { WScript.StdOut.Write(c); },
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errs: function(s) { WScript.StdErr.Write(s); }
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},
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quit: function(s) { WScript.Quit(s); }
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};
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}
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if (typeof java === 'object') {
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// Mozilla Rhino
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return {
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name: "rhino",
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fetch: function(filename) {
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var r = new java.io.BufferedReader(new java.io.FileReader(new java.io.File(filename))),
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sb = new java.lang.StringBuilder(), s;
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do {
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s = r.readLine();
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if (s !== null) {
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sb.append(s).append('\n');
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}
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} while (s !== null);
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return String(sb);
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},
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console: (function() {
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var stdin = new java.io.BufferedReader(new java.io.InputStreamReader(java.lang.System['in']));
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return {
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gets: function() { return String(stdin.readLine()); },
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getc: function() { return String(stdin.readLine()).substring(0, 1); },
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puts: function(s) { java.lang.System.out.print(s); },
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putc: function(c) { java.lang.System.out.print(c); },
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errs: function(s) { java.lang.System.err.print(s); }
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};
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}()),
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quit: function(s) { quit(s); }
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};
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}
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throw 'Unknown script host';
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}());
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if (args.length !== 1) {
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host.console.errs("Usage: " + host + " cbasic.js program_name\n");
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host.quit(1);
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}
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var filename = args[0];
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eval(host.fetch("basic.js"));
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// Compile
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var program = (function() {
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host.console.puts('Compiling...\n');
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try {
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var source = host.fetch(filename);
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return basic.compile(source);
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} catch (pe) {
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if (pe instanceof basic.ParseError) {
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host.console.errs(pe.message + ' (source line: ' + pe.line + ', column: ' + pe.column + ')\n');
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host.quit(1);
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} else {
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throw pe;
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}
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}
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}());
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// Run
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(function() {
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host.console.puts('Running...\n');
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program.init({
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tty: {
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getCursorPosition: function() { return { x: 0, y: 0 }; },
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setCursorPosition: function() { },
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getScreenSize: function() { return { width: 80, height: 24 }; },
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writeChar: function(ch) { host.console.putc(ch.replace(/\r/g, '\n')); },
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writeString: function(string) { host.console.puts(string.replace(/\r/g, '\n')); },
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readChar: function(callback) {
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callback(host.console.getc());
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},
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readLine: function(callback, prompt) {
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host.console.puts(prompt);
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callback(host.console.gets().replace(/[\r\n]*/, ''));
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}
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}
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});
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var state;
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try {
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do {
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state = program.step();
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} while (state !== basic.STATE_STOPPED);
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} catch (rte) {
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if (rte instanceof basic.RuntimeError) {
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host.console.errs(rte.message + '\n');
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host.console.quit(1);
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} else {
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throw rte;
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}
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}
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}());
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@ -9,8 +9,8 @@
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<link rel="stylesheet" href="styles.css">
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<link rel="stylesheet" href="display.css">
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<script src="polyfill/polyfill.min.js"></script>
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<script src="polyfill/keyboard.js"></script>
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<script src="https://cdn.rawgit.com/inexorabletash/polyfill/v0.1.16/polyfill.min.js"></script>
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<script src="https://cdn.rawgit.com/inexorabletash/polyfill/v0.1.16/keyboard.js"></script>
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<!-- CodeMirror syntax highlighting - this is optional -->
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<script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.12.0/codemirror.min.js"></script>
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1
polyfill
1
polyfill
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@ -1 +0,0 @@
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Subproject commit 51e0b2372803abd1c72f740d9fa15ee398b9a5a2
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@ -603,7 +603,7 @@ function which implements the logic for walking over the array.<p>
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</ol>
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</section>
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<script src="polyfill/polyfill.min.js"></script>
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<script src="https://cdn.rawgit.com/inexorabletash/polyfill/v0.1.16/polyfill.min.js"></script>
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<script>
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(function buildTOC(el) {
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var html = [];
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@ -8,8 +8,8 @@
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document.write('<link rel="stylesheet" href="' + baseURL + 'display.css">');
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function load(url) { document.write('<script src="' + baseURL + url + '"></script>'); }
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load('polyfill/polyfill.js');
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load('polyfill/keyboard.js');
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load('https://cdn.rawgit.com/inexorabletash/polyfill/v0.1.16/polyfill.min.js');
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load('https://cdn.rawgit.com/inexorabletash/polyfill/v0.1.16/keyboard.js');
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load('tty.js');
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load('lores.js');
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load('hires.js');
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