basic: added ENTER elapsed time

src/common/basic/compiler.ts

@@ -10,7 +10,7 @@ export interface BASICOptions {
     optionalLabels : boolean;			// can omit line numbers and use labels?
     optionalWhitespace : boolean;       // can "crunch" keywords? also, eat extra ":" delims
     multipleStmtsPerLine : boolean;     // multiple statements separated by ":"
-    varNaming : 'A'|'A1'|'AA'|'*';      // only allow A0-9 for numerics, single letter for arrays/strings
+    varNaming : 'A'|'A1'|'A1$'|'AA'|'*';      // only allow A0-9 for numerics, single letter for arrays/strings
     squareBrackets : boolean;           // "[" and "]" interchangable with "(" and ")"?
     tickComments : boolean;             // support 'comments?
     hexOctalConsts : boolean;           // support &H and &O integer constants?
@@ -198,6 +198,13 @@ export interface INPUT_Statement extends Statement {
     command: "INPUT";
     prompt: Expr;
     args: IndOp[];
+    timeout?: Expr;
+    elapsed?: IndOp;
+}
+
+export interface ENTER_Statement extends INPUT_Statement {
+    timeout: Expr;
+    elapsed: IndOp;
 }
 
 export interface DATA_Statement extends Statement {
@@ -852,6 +859,10 @@ export class BASICParser {
                 if (lexpr.args != null && !/^[A-Z]?[$]?$/i.test(lexpr.name))
                     this.dialectErrorNoSupport(`array names other than a single letter`);
                 break;
+            case 'A1$':
+                if (!/^[A-Z][0-9]?[$]?$/i.test(lexpr.name))
+                    this.dialectErrorNoSupport(`variable names other than a letter followed by an optional digit`);
+                break;
             case 'AA':
                 if (lexpr.args == null && !/^[A-Z][A-Z0-9]?[$]?$/i.test(lexpr.name))
                     this.dialectErrorNoSupport(`variable names other than a letter followed by an optional letter or digit`);
@@ -1057,11 +1068,11 @@ export class BASICParser {
     }
     /* for HP BASIC only */
     stmt__ENTER() : INPUT_Statement {
-        var secs = this.parseExpr();
+        var timeout = this.parseExpr();
         this.expectToken(',');
-        var result = this.parseLexpr(); // TODO: this has to go somewheres
+        var elapsed = this.parseLexpr(); // TODO: this has to go somewheres
         this.expectToken(',');
-        return this.stmt__INPUT();
+        return { command:'INPUT', prompt:null, args:this.parseLexprList(), timeout:timeout, elapsed:elapsed };
     }
     // TODO: DATA statement doesn't read unquoted strings
     stmt__DATA() : DATA_Statement {
@@ -1406,7 +1417,7 @@ export const HP_TIMESHARED_BASIC : BASICOptions = {
     optionalLabels : false,
     optionalWhitespace : false,
     multipleStmtsPerLine : true,
-    varNaming : "A1",
+    varNaming : "A1$",
     staticArrays : true,
     sharedArrayNamespace : false,
     defaultArrayBase : 1,
@@ -1874,6 +1885,7 @@ const BUILTIN_DEFS : BuiltinFunctionDef[] = [
     ['OCT$', ['number'], 'string' ],
     ['PI', [], 'number'],
     ['POS', ['number'], 'number' ], // arg ignored
+    ['POS', ['string','string'], 'number' ], // HP POS
     ['LEFT$', ['string', 'number'], 'string' ],
     ['RND', [], 'number' ],
     ['RND', ['number'], 'number' ],

src/common/basic/fuzz.ts

@@ -1,6 +1,6 @@
 
 import { BASICParser, DIALECTS, BASICOptions, CompileError } from "./compiler";
-import { BASICRuntime } from "./runtime";
+import { BASICRuntime, InputResponse } from "./runtime";
 import { EmuHalt } from "../emu";
 
 process.on('unhandledRejection', (reason, promise) => {
@@ -20,12 +20,12 @@ export function fuzz(buf) {
         runtime.print = (s) => {
             if (s == null) throw new Error("PRINT null string");
         }
-        runtime.input = function(prompt: string, nargs: number) : Promise<string[]> {
+        runtime.input = function(prompt: string, nargs: number) : Promise<InputResponse> {
-            var p = new Promise<string[]>( (resolve, reject) => {
+            var p = new Promise<InputResponse>( (resolve, reject) => {
                 var arr = [];
                 for (var i=0; i<Math.random()*10; i++)
                     arr.push(i+"");
-                resolve(arr);
+                resolve({vals:arr, line:arr.join(' ')});
             });
             return p;
         }

src/common/basic/run.ts

@@ -69,9 +69,10 @@ runtime.print = (s:string) => {
 runtime.input = async (prompt:string) => {
     return new Promise( (resolve, reject) => {
         function answered(answer) {
-            var vals = answer.toUpperCase().split(',');
+            var line = answer.toUpperCase();
+            var vals = line.split(',');
             //console.log(">>>",vals);
-            resolve(vals);
+            resolve({line:line, vals:vals});
         }
         prompt += ' ?';
         if (inputlines.length) {

src/common/basic/runtime.ts

@@ -16,6 +16,12 @@ function isUnOp(arg: basic.Expr): arg is basic.UnOp {
     return (arg as any).op != null && (arg as any).expr != null;
 }
 
+export interface InputResponse {
+    line: string;
+    vals: string[];
+    elapsed?: number;
+}
+
 // expr2js() options
 class ExprOptions {
     isconst?: boolean;      // only allow constant operations
@@ -408,8 +414,8 @@ export class BASICRuntime {
     }
 
     // override this
-    async input(prompt: string, nargs: number) : Promise<string[]> {
+    async input(prompt: string, nargs: number) : Promise<InputResponse> {
-        return [];
+        return {line:"", vals:[]};
     }
 
     // override this
@@ -730,22 +736,24 @@ export class BASICRuntime {
     }
 
     do__INPUT(stmt : basic.INPUT_Statement) {
-        var prompt = this.expr2js(stmt.prompt);
+        var prompt = stmt.prompt != null ? this.expr2js(stmt.prompt) : '""';
+        var elapsed = stmt.elapsed != null ? this.assign2js(stmt.elapsed) : "let ___";
         var setvals = '';
         stmt.args.forEach((arg, index) => {
             var lexpr = this.assign2js(arg);
             setvals += `
-            var value = this.convert(${JSON.stringify(arg.name)}, vals[${index}]);
+            var value = this.convert(${JSON.stringify(arg.name)}, response.vals[${index}]);
             valid &= this.isValid(value);
             ${lexpr} = value;
             `
         });
         return `this.preInput();
-                this.input(${prompt}, ${stmt.args.length}).then((vals) => {
+                this.input(${prompt}, ${stmt.args.length}).then((response) => {
                     let valid = 1;
                     ${setvals}
                     this.postInput(valid);
                     this.column = 0; // assume linefeed
+                    ${elapsed} = response.elapsed;
                 })`;
     }
 
@@ -1165,7 +1173,10 @@ export class BASICRuntime {
         return Math.PI;
     }
     // TODO: POS(haystack, needle, start)
-    POS(arg : number) : number { // arg ignored
+    POS(arg1, arg2) { // arg ignored
+        if (typeof arg1 == 'string' && typeof arg2 == 'string')
+            return arg1.indexOf(arg2) >= 0 + 1;
+        else
             return this.column + 1;
     }
     RIGHT$(arg : string, count : number) : string {

src/common/teletype.ts

@@ -1,4 +1,6 @@
 
+import { InputResponse } from "./basic/runtime";
+
 export class TeleType {
     page: HTMLElement;
     fixed: boolean;
@@ -166,11 +168,12 @@ export class TeleTypeWithKeyboard extends TeleType {
     keephandler : boolean = true;
     uppercaseOnly : boolean = false;
     splitInput : boolean = false;
-    resolveInput : (inp) => void;
+    resolveInput : (InputResponse) => void;
 
     focused : boolean = true;
     scrolling : number = 0;
     waitingfor : string;
+    lastInputRequestTime : number;
 
     constructor(page: HTMLElement, fixed: boolean, input: HTMLInputElement) {
         super(page, fixed);
@@ -214,6 +217,7 @@ export class TeleTypeWithKeyboard extends TeleType {
             $(this.input).addClass('transcript-input-char')
         else
             $(this.input).removeClass('transcript-input-char')
+        this.lastInputRequestTime = Date.now();
     }
     hideinput() {
         this.showPrintHead(true);
@@ -238,12 +242,14 @@ export class TeleTypeWithKeyboard extends TeleType {
     }
     sendinput(s: string) {
         if (this.resolveInput) {
+            var elapsed = Date.now() - this.lastInputRequestTime;
             if (this.uppercaseOnly) s = s.toUpperCase(); // TODO: always uppercase?
             this.addtext(s, 4);
             this.flushline();
             this.clearinput();
             this.hideinput(); // keep from losing input handlers
-            this.resolveInput(this.splitInput ? s.split(',') : s);
+            var vals = this.splitInput ? s.split(',') : null;
+            this.resolveInput({line:s, vals:vals, elapsed:elapsed/1000});
             if (!this.keephandler) this.resolveInput = null;
         }
     }

src/ide/views.ts

@@ -262,7 +262,6 @@ export class SourceEditor implements ProjectView {
   }
 
   clearErrors() {
-    this.refreshDebugState(false); // TODO: why?
     this.dirtylisting = true;
     // clear line widgets
     this.editor.clearGutter("gutter-info");

src/platform/zmachine.ts

@@ -3,6 +3,7 @@ import { Platform, BasePlatform, BaseDebugPlatform, Preset, EmuState, inspectSym
 import { PLATFORMS, EmuHalt } from "../common/emu";
 import { loadScript } from "../ide/ui";
 import { TeleType, TeleTypeWithKeyboard } from "../common/teletype";
+import { InputResponse } from "../common/basic/runtime";
 
 const ZMACHINE_PRESETS = [
     { id: 'hello.inf', name: 'Hello World' },
@@ -71,7 +72,8 @@ class GlkImpl {
             3: new TeleType(null, true), // fake window for resizing
         };
         this.input = input;
-        this.mainwnd.resolveInput = (s:string) => {
+        this.mainwnd.resolveInput = (resp:InputResponse) => {
+            var s = resp.line;
             if (this.vm.read_data.buffer) {
                 for (var i = 0; i < s.length; i++) {
                     this.vm.read_data.buffer[i] = s.charCodeAt(i) & 0xff;