fix(livescript) fix potential catastrophic backtracking

joshgoebel · joshgoebel · commit 0a1e9b0b920b · 2020-11-14T21:43:42.000-05:00
diff --git a/src/languages/livescript.js b/src/languages/livescript.js
@@ -115,7 +115,7 @@ export default function(hljs) {
         {
           // regex can't start with space to parse x / 2 / 3 as two divisions
           // regex can't start with *, and it supports an "illegal" in the main mode
-          begin: /\/(?![ *])(\\\/|.)*?\/[gim]*(?=\W)/
+          begin: /\/(?![ *])(\\.|[^\\\n])*?\/[gim]*(?=\W)/
         }
       ]
     },

Original file line number	Diff line number	Diff line change
`@@ -115,7 +115,7 @@ export default function(hljs) {`
`115`	`115`	`{`
`116`	`116`	`// regex can't start with space to parse x / 2 / 3 as two divisions`
`117`	`117`	`// regex can't start with *, and it supports an "illegal" in the main mode`
`118`		`- begin: /\/(?![ ])(\\\/\|.)?\/[gim]*(?=\W)/`
	`118`	`+ begin: /\/(?![ ])(\\.\|[^\\\n])?\/[gim]*(?=\W)/`
`119`	`119`	`}`
`120`	`120`	`]`
`121`	`121`	`},`