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https://github.com/inexorabletash/jsbasic.git
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Move cscript/rhino console support to separate file
This commit is contained in:
Joshua Bell
parent
66de8344ff
commit
fe3dddb32b
@ -24,8 +24,9 @@ Notes & Known Issues
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* Commands that operate on the program itself (`LIST`, `RUN`, `DEL`, etc.) are not implemented.
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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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* On Windows, download basic.js and run from a command prompt via: `cscript.exe basic.js your_basic_program.txt`
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* On Mac/Linux, install Mozilla Rhino, download basic.js and run from the command prompt via: `java -jar PATH_TO/js.jar basic.js your_program.txt`
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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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To Do
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-----
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139
basic.js
139
basic.js
@ -43,17 +43,10 @@
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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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// Functions from polyfill.js, via jsmin, for running via console
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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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// 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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var basic = (function() {
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this.basic = (function() {
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var basic = {
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STATE_STOPPED: 0,
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@ -2364,134 +2357,4 @@ var basic = (function() {
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} ());
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// TODO: Unit tests for compile errors
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// Console:
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// For rhino: rhino basic.js your_basic_program.txt
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// For CScript: CScript basic.js your_basic_program.txt
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// TODO: DOS implementation
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if (typeof window === 'undefined') {
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(function() {
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var console, program, state, filename, source;
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if (typeof WScript === 'object') {
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// Microsoft Windows Scripting engine
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if (WScript.Arguments.length !== 1) {
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WScript.StdOut.WriteLine("Usage: cscript basic.js program_name");
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WScript.Quit(-1);
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}
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filename = WScript.Arguments(0);
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source = (function() {
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var code = '',
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fso = new ActiveXObject("Scripting.FileSystemObject"),
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stream = fso.OpenTextFile(filename);
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while (!stream.AtEndOfStream) {
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code += stream.ReadLine() + '\n';
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}
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stream.Close();
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return code;
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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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quit: function(s) { WScript.Quit(s); }
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};
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} else if (typeof java === 'object') {
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// Mozilla Rhino
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if (arguments.length !== 1) {
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java.lang.System.err.println("Usage: rhino basic.js program_name");
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quit(1);
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}
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filename = arguments[0];
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source = (function() {
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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(),
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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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(function() {
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var stdin = new java.io.BufferedReader(new java.io.InputStreamReader(java.lang.System['in']));
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console = {
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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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quit: function(s) { quit(s); }
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};
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} ());
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} else {
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throw 'Unknown script host';
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}
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// Compile
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console.puts('Compiling...\n');
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try {
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program = basic.compile(source);
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} catch (pe) {
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if (pe instanceof basic.ParseError) {
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console.errs(pe.message + ' (source line: ' + pe.line + ', column: ' + pe.column + ')\n');
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console.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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// Run
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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) { console.putc(ch.replace(/\r/g, '\n')); },
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writeString: function(string) { console.puts(string.replace(/\r/g, '\n')); },
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readChar: function(callback) {
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callback(console.getc());
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},
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readLine: function(callback, prompt) {
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console.puts(prompt);
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callback(console.gets().replace(/[\r\n]*/, ''));
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}
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}
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});
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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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console.errs(rte.message + '\n');
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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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}
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144
cbasic.js
Normal file
144
cbasic.js
Normal file
@ -0,0 +1,144 @@
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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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function load(_s) { eval(host.fetch(_s)); }
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load("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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