htmlunit/RegExpJsToJavaConverter: Char ranges following [] or [^] are broken

Author: duonglaiquang

src/main/java/org/htmlunit/javascript/regexp/RegExpJsToJavaConverter.java

@@ -242,6 +242,7 @@ else if (']' == next) {
                     // [^]
                     tape_.move(-3);
                     tape_.replace(3, "(?s:.)");
+                    insideCharClass_ = false;
                 }
                 else {
                     tape_.move(-1);
@@ -251,6 +252,7 @@ else if (']' == next) {
                 // []
                 tape_.move(-2);
                 tape_.replace(2, "(?!)");
+                insideCharClass_ = false;
             }
             else {
                 tape_.move(-1);

src/test/java/org/htmlunit/javascript/regexp/RegExpJsToJavaConverterTest.java

@@ -191,9 +191,10 @@ public void charClass() {
     public void charClassOpenInside() {
         final RegExpJsToJavaConverter regExpJsToJavaConverter = new RegExpJsToJavaConverter();
 
-        final String in = "[af[g]";
-        final String out = regExpJsToJavaConverter.convert(in);
-        assertEquals("[af\\[g]", out);
+        assertEquals("[af\\[g]", regExpJsToJavaConverter.convert("[af[g]"));
+        assertEquals("(?!)[a][b]", regExpJsToJavaConverter.convert("[][a][b]"));
+        assertEquals("[a](?s:.)[b]", regExpJsToJavaConverter.convert("[a][^][b]"));
+        assertEquals("[a\\[b]c]", regExpJsToJavaConverter.convert("[a[b]c]"));
     }
 
     /**