Support quoted words

src/parser2.ts

@@ -178,6 +178,19 @@ class Parser {
           break;
         }
 
+        case "quote": {
+          if (wip.startOfWord()) {
+            wip.addWordPiece({ text: "" }, pos);
+            this.advance();
+            this.parseQuoteWord(wip);
+            this.expect("quote");
+            wip.freezeWord("Extra characters after quoted word");
+          } else {
+            wip.addWordPiece({ bare: chars }, pos);
+          }
+          break;
+        }
+
         case "[": {
           this.advance();
           const script = this.parseScript();
@@ -225,8 +238,55 @@ class Parser {
           break;
         }
 
+        default:
+          throw new ParseError(
+            `Unhandled case: ${type satisfies never} (${chars})`,
+            pos
+          );
+      }
+
+      this.advance();
+    }
+  }
+
+  parseQuoteWord(wip: WipScript) {
+    while (true) {
+      const [type, chars, pos] = this.next;
+      switch (type) {
+        case "text":
+        case "{":
+        case "}":
+        case "]":
+        case "whitespace":
+        case "newline":
+        case "semicolon":
+        case "comment":
+          wip.addWordPiece({ text: chars }, pos);
+          break;
+
+        case "[": {
+          this.advance();
+          const script = this.parseScript();
+          wip.addWordPiece({ script }, pos);
+          this.expect("]");
+          break;
+        }
+
+        case "EOF":
+          throw new ParseError(
+            "Reached end of input while parsing a quoted word",
+            pos
+          );
+
+        case "backslash": {
+          this.advance();
+          this.parseBackslashEscape(wip, "quote");
+          break;
+        }
+
         case "quote":
-          throw new Error(`Unhandled case: ${type} (${chars})`);
+          return;
+
         default:
           throw new ParseError(
             `Unhandled case: ${type satisfies never} (${chars})`,