RegExp: completion for horizontal and vertical whitespace escape sequences

RegExpSupport/src/org/intellij/lang/regexp/DefaultRegExpPropertiesProvider.java

@@ -89,8 +89,12 @@ public final class DefaultRegExpPropertiesProvider {
   private final String[][] myCharacterClasses = {
     {"d", "digit: [0-9]"},
     {"D", "nondigit: [^0-9]"},
+    {"h", "horizontal whitespace character: [ \\t\\xA0\\u1680\\u180e\\u2000-\\u200a\\u202f\\u205f\\u3000]"},
+    {"H", "non-horizontal whitespace character: [^\\h]"},
     {"s", "whitespace [ \\t\\n\\x0B\\f\\r]"},
     {"S", "non-whitespace [^\\s]"},
+    {"v", "vertical whitespace character: [\\n\\x0B\\f\\r\\x85\\u2028\\u2029]"},
+    {"V", "non-vertical whitespace character: [^\\v]"},
     {"w", "word character [a-zA-Z_0-9]"},
     {"W", "nonword character [^\\w]"},
     {"b", "word boundary"},

RegExpSupport/test/test/RegExpCompletionTest.java

@@ -58,7 +58,7 @@ public class RegExpCompletionTest extends CodeInsightFixtureTestCase {
 
     private void doBackSlashVariantsTest() throws Throwable {
         java.util.List<String> nameList = new ArrayList<String>(Arrays.asList("d", "D", "s", "S", "w", "W", "b", "B", "A", "G", "Z", "z", "Q", "E",
-                "t", "n", "r", "f", "a", "e"));
+                "t", "n", "r", "f", "a", "e", "h", "H", "v", "V"));
         for (String[] stringArray : DefaultRegExpPropertiesProvider.getInstance().getAllKnownProperties()) {
             nameList.add("p{" + stringArray[0] + "}");
         }