Fix an infinite loop in Crystal heredoc tokenizing

marijnh · marijnh · commit 9ac23118c0b3 · 2024-04-03T14:57:49.000+02:00
FIX: Fix an infinite loop when tokenizing heredoc strings in the Crystal mode. Closes codemirror/codemirror5#7092
diff --git a/mode/crystal.js b/mode/crystal.js
@@ -365,7 +365,7 @@ function tokenHereDoc(phrase, embed) {
           return "string";
         }
 
-        escaped = embed && stream.next() == "\\";
+        escaped = stream.next() == "\\" && embed;
       } else {
         stream.next();
         escaped = false;

Original file line number	Diff line number	Diff line change
`@@ -365,7 +365,7 @@ function tokenHereDoc(phrase, embed) {`
`365`	`365`	`return "string";`
`366`	`366`	`}`
`367`	`367`
`368`		`- escaped = embed && stream.next() == "\\";`
	`368`	`+ escaped = stream.next() == "\\" && embed;`
`369`	`369`	`} else {`
`370`	`370`	`stream.next();`
`371`	`371`	`escaped = false;`