Factor out backslash parse helper

src/parser2.ts

@@ -217,10 +217,31 @@ class Parser {
 
         case "backslash": {
           this.advance();
+          this.parseBackslashEscape(wip, "bare");
+          break;
+        }
+
+        case "quote":
+          throw new Error(`Unhandled case: ${type} (${chars})`);
+        case "ERROR":
+          throw new Error(chars);
+        default:
+          throw new Error(`Unhandled case: ${type satisfies never} (${chars})`);
+      }
+
+      this.advance();
+    }
+  }
+
+  parseBackslashEscape(wip: WipScript, wordType: "bare" | "quote") {
     const [type, chars, pos] = this.next;
     switch (type) {
       case "newline":
+        if (wordType == "bare") {
           wip.finishWord();
+        } else {
+          // ignore newline
+        }
         break;
 
       case "whitespace":
@@ -249,24 +270,9 @@ class Parser {
         );
       case "ERROR":
         throw new Error(chars);
-            default:
-              throw new Error(
-                `Unhandled case: ${type satisfies never} (${chars})`
-              );
-          }
-          break;
-        }
-
-        case "quote":
-          throw new Error(`Unhandled case: ${type} (${chars})`);
-        case "ERROR":
-          throw new Error(chars);
       default:
         throw new Error(`Unhandled case: ${type satisfies never} (${chars})`);
     }
-
-      this.advance();
-    }
   }
 
   parseBrace(): string {