In Chapter 12, don't allow # in identifiers

marijnh · marijnh · commit beeb608b21b3 · 2018-07-03T12:35:01.000+02:00
Since we'll use it for comments in the exercises
diff --git a/12_language.md b/12_language.md
@@ -159,7 +159,7 @@ function parseExpression(program) {
     expr = {type: "value", value: match[1]};
   } else if (match = /^\d+\b/.exec(program)) {
     expr = {type: "value", value: Number(match[0])};
-  } else if (match = /^[^\s(),"]+/.exec(program)) {
+  } else if (match = /^[^\s(),#"]+/.exec(program)) {
     expr = {type: "word", name: match[0]};
   } else {
     throw new SyntaxError("Unexpected syntax: " + program);
