Implement assign and set commands, improve output format

src/vm/output.ts

@@ -5,19 +5,31 @@ import fs from "node:fs";
 import {tempFile} from "../util/fs.js";
 
 export const getSubjectDisplay = (sub: StrRVal): string => {
+    let annotated = '\n┌───────────────\n'
     if ( sub.term === 'string' ) {
         const lines = sub.value.split('\n')
         const padLength = `${lines.length}`.length  // heh
-        return lines
-            .map((line, idx) => idx.toString().padStart(padLength, ' ') + ' ⎸' + line)
+        annotated += lines
+            .map((line, idx) => '│ ' + idx.toString().padStart(padLength, ' ') + ' │' + line)
             .join('\n')
     }
 
     if ( sub.term === 'int' ) {
-        return String(sub.term)
+        annotated += `│ ${sub.value}`
     }
 
-    return JSON.stringify(sub.value, null, '\t')  // fixme
+    if ( sub.term === 'destructured' ) {
+        const padLength = `${sub.value.length}`.length
+        annotated += sub.value
+            .map((el, idx) => '│ ' + idx.toString().padStart(padLength, ' ') + ' │'
+                + el.value.split('\n').map((line, lineIdx) => lineIdx ? (`│ ${''.padStart(padLength, ' ')} │${line}`) : line).join('\n'))
+            .join('\n│ ' + ''.padStart(padLength, ' ') + ' ┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈\n')
+    }
+
+    annotated += '\n├───────────────'
+    annotated += `\n│ :: ${sub.term}`
+    annotated += '\n└───────────────'
+    return annotated
 }
 
 export type Display = {
@@ -27,7 +39,7 @@ export type Display = {
 
 export class ConsoleDisplay implements Display {
     showSubject(sub: StrRVal) {
-        console.log(`\n---------------\n${getSubjectDisplay(sub)}\n---------------\n`)
+        console.log(getSubjectDisplay(sub))
     }
 
     showRaw(str: string) {