diff env/lib/python3.9/site-packages/bleach/_vendor/html5lib/_trie/_base.py @ 0:4f3585e2f14b draft default tip

"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/env/lib/python3.9/site-packages/bleach/_vendor/html5lib/_trie/_base.py	Mon Mar 22 18:12:50 2021 +0000
@@ -0,0 +1,40 @@
+from __future__ import absolute_import, division, unicode_literals
+
+try:
+    from collections.abc import Mapping
+except ImportError:  # Python 2.7
+    from collections import Mapping
+
+
+class Trie(Mapping):
+    """Abstract base class for tries"""
+
+    def keys(self, prefix=None):
+        # pylint:disable=arguments-differ
+        keys = super(Trie, self).keys()
+
+        if prefix is None:
+            return set(keys)
+
+        return {x for x in keys if x.startswith(prefix)}
+
+    def has_keys_with_prefix(self, prefix):
+        for key in self.keys():
+            if key.startswith(prefix):
+                return True
+
+        return False
+
+    def longest_prefix(self, prefix):
+        if prefix in self:
+            return prefix
+
+        for i in range(1, len(prefix) + 1):
+            if prefix[:-i] in self:
+                return prefix[:-i]
+
+        raise KeyError(prefix)
+
+    def longest_prefix_item(self, prefix):
+        lprefix = self.longest_prefix(prefix)
+        return (lprefix, self[lprefix])