[ruby mode] Require dash or tilde at start of heredoc strings

Closes codemirror#5871
cone56 · Jan 6, 2020 · 4edca5f · 4edca5f
1 parent ee37c14
commit 4edca5f
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/mode/ruby/ruby.js b/mode/ruby/ruby.js
@@ -63,7 +63,7 @@ CodeMirror.defineMode("ruby", function(config) {
     } else if (ch == "#") {
       stream.skipToEnd();
       return "comment";
-    } else if (ch == "<" && (m = stream.match(/^<(-)?[\`\"\']?([a-zA-Z_?]\w*)[\`\"\']?(?:;|$)/))) {
+    } else if (ch == "<" && (m = stream.match(/^<([-~])[\`\"\']?([a-zA-Z_?]\w*)[\`\"\']?(?:;|$)/))) {
       return chain(readHereDoc(m[2], m[1]), stream, state);
     } else if (ch == "0") {
       if (stream.eat("x")) stream.eatWhile(/[\da-fA-F]/);