From e7caf265c114214d598ad15c0e63391ed2b3eec6 Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Sat, 21 Feb 2015 10:47:31 +0530
Subject: [PATCH] Add a has_matches() method for convenience

---
 src/css_selectors/select.py | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/css_selectors/select.py b/src/css_selectors/select.py
index 40ceba8edb..e51a7cb875 100644
--- a/src/css_selectors/select.py
+++ b/src/css_selectors/select.py
@@ -141,6 +141,7 @@ class Select(object):
         else:
             self.ignore_inappropriate_pseudo_classes = frozenset()
 
+    # External API {{{
     def invalidate_caches(self):
         'Invalidate all caches. You must call this before using this object if you have made changes to the HTML tree'
         self._element_map = None
@@ -165,6 +166,13 @@ class Select(object):
                     yield item
                     seen.add(item)
 
+    def has_matches(self, selector):
+        'Return True iff selector matches at least one item in the tree'
+        for elem in self(selector):
+            return True
+        return False
+    # }}}
+
     def iterparsedselector(self, parsed_selector):
         type_name = type(parsed_selector).__name__
         try: