Fix catastropic backtracking

colinodell · colinodell · commit be0e90e27f16 · 2024-07-22T14:01:36.000-04:00
diff --git a/src/Extension/Attributes/Util/AttributesHelper.php b/src/Extension/Attributes/Util/AttributesHelper.php
@@ -23,7 +23,7 @@
  */
 final class AttributesHelper
 {
-    private const SINGLE_ATTRIBUTE = '\s*([.]-?[_a-z]\S*|[#]\S+|' . RegexHelper::PARTIAL_ATTRIBUTENAME . RegexHelper::PARTIAL_ATTRIBUTEVALUESPEC . '?)\s*';
+    private const SINGLE_ATTRIBUTE = '\s*([.]-?[_a-z][^\s}]*|[#][^\s}]+|' . RegexHelper::PARTIAL_ATTRIBUTENAME . RegexHelper::PARTIAL_ATTRIBUTEVALUESPEC . '?)\s*';
     private const ATTRIBUTE_LIST   = '/^{:?(' . self::SINGLE_ATTRIBUTE . ')+}/i';
 
     /**

Original file line number	Diff line number	Diff line change
`@@ -23,7 +23,7 @@`
`23`	`23`	`*/`
`24`	`24`	`final class AttributesHelper`
`25`	`25`	`{`
`26`		`- private const SINGLE_ATTRIBUTE = '\s([.]-?[_a-z]\S\|[#]\S+\|' . RegexHelper::PARTIAL_ATTRIBUTENAME . RegexHelper::PARTIAL_ATTRIBUTEVALUESPEC . '?)\s*';`
	`26`	`+ private const SINGLE_ATTRIBUTE = '\s([.]-?[_a-z][^\s}]\|[#][^\s}]+\|' . RegexHelper::PARTIAL_ATTRIBUTENAME . RegexHelper::PARTIAL_ATTRIBUTEVALUESPEC . '?)\s*';`
`27`	`27`	`private const ATTRIBUTE_LIST = '/^{:?(' . self::SINGLE_ATTRIBUTE . ')+}/i';`
`28`	`28`
`29`	`29`	`/**`