Update CucumberExpression.java

Oops, didn't saw I commited to main, so revert the commit

Author: jkronegg

java/src/main/java/io/cucumber/cucumberexpressions/CucumberExpression.java

@@ -24,27 +24,7 @@
 
 @API(status = API.Status.STABLE)
 public final class CucumberExpression implements Expression {
-    /**
-     * List of characters to be escaped.
-     * The last char is '}' with index 125, so we need only 126 characters.
-     */
-    private static final boolean[] CHAR_TO_ESCAPE = new boolean[126];
-    static {
-        CHAR_TO_ESCAPE['^'] = true;
-        CHAR_TO_ESCAPE['$'] = true;
-        CHAR_TO_ESCAPE['['] = true;
-        CHAR_TO_ESCAPE[']'] = true;
-        CHAR_TO_ESCAPE['('] = true;
-        CHAR_TO_ESCAPE[')'] = true;
-        CHAR_TO_ESCAPE['{'] = true;
-        CHAR_TO_ESCAPE['}'] = true;
-        CHAR_TO_ESCAPE['.'] = true;
-        CHAR_TO_ESCAPE['|'] = true;
-        CHAR_TO_ESCAPE['?'] = true;
-        CHAR_TO_ESCAPE['*'] = true;
-        CHAR_TO_ESCAPE['+'] = true;
-        CHAR_TO_ESCAPE['\\'] = true;
-    }
+    private static final Pattern ESCAPE_PATTERN = Pattern.compile("[\\\\^\\[({$.|?*+})\\]]");
     private final List<ParameterType<?>> parameterTypes = new ArrayList<>();
     private final String source;
     private final TreeRegexp treeRegexp;
@@ -81,19 +61,10 @@ private String rewriteToRegex(Node node) {
     }
 
     private static String escapeRegex(String text) {
-        int length = text.length();
-        StringBuilder sb = new StringBuilder(length * 2); // prevent resizes
-        int maxChar = CHAR_TO_ESCAPE.length;
-        for (int i = 0; i < length; i++) {
-            char currentChar = text.charAt(i);
-            if (currentChar < maxChar && CHAR_TO_ESCAPE[currentChar]) {
-                sb.append('\\');
-            }
-            sb.append(currentChar);
-        }
-        return sb.toString();
+        return ESCAPE_PATTERN.matcher(text).replaceAll("\\\\$0");
     }
 
+    
     private String rewriteOptional(Node node) {
         assertNoParameters(node, astNode -> createParameterIsNotAllowedInOptional(astNode, source));
         assertNoOptionals(node, astNode -> createOptionalIsNotAllowedInOptional(astNode, source));