From 030b13588c9a45eb4edc06db9c48177f3e88abbb Mon Sep 17 00:00:00 2001
From: "sergey.vasiliev" <sergey.vasiliev@jetbrains.com>
Date: Mon, 23 Nov 2009 17:40:37 +0300
Subject: [PATCH] virtual file namespace pattern

---
 .../src/com/intellij/patterns/VirtualFilePattern.java  | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/platform/lang-api/src/com/intellij/patterns/VirtualFilePattern.java b/platform/lang-api/src/com/intellij/patterns/VirtualFilePattern.java
index 5494c73ef9..a417c914bf 100644
--- a/platform/lang-api/src/com/intellij/patterns/VirtualFilePattern.java
+++ b/platform/lang-api/src/com/intellij/patterns/VirtualFilePattern.java
@@ -65,6 +65,24 @@ public class VirtualFilePattern extends TreeElementPattern<VirtualFile, VirtualF
       }
     });
   }
+  public VirtualFilePattern xmlWithRootTagNamespace(final String... namespace) {
+    StringPattern namespacePattern = StandardPatterns.string().oneOf(namespace);
+    return xmlWithRootTagNamespace(namespacePattern);
+  }
+
+  public VirtualFilePattern xmlWithRootTagNamespace(final ElementPattern<String> namespacePattern) {
+    return with(new PatternCondition<VirtualFile>("xmlWithRootTagNamespace") {
+      public boolean accepts(@NotNull final VirtualFile virtualFile, final ProcessingContext context) {
+        try {
+          String rootTagNamespace = NanoXmlUtil.parseHeaderWithException(virtualFile).getRootTagNamespace();
+          return rootTagNamespace != null && namespacePattern.getCondition().accepts(rootTagNamespace, context);
+        }
+        catch (IOException e) {
+          return false;
+        }
+      }
+    });
+  }
 
   protected VirtualFile getParent(@NotNull final VirtualFile t) {
     return t.getParent();
-- 
2.11.4.GIT