regex: remove find_patterns (unused and broken)

1 files changed, 0 insertions, 42 deletions

diff --git a/regex/__init__.py b/regex/__init__.py
index bf96587..14de8a9 100644
--- a/regex/__init__.py
+++ b/regex/__init__.py
@@ -150,48 +150,6 @@ def get_patterns(code):
 
     yield from patterns_with_literals(tree)
 
-def find_pattern(tree, pattern):
-    def find_pattern_aux(node, pattern, varname=None):
-        nodes = []
-        if pattern.label == node.label:
-            nodes = [node]
-
-            if node.label in ('id', 'arg'):
-                if not pattern:
-                    while node:
-                        node = node[0]
-                    if varname is None:
-                        varname = node.label
-                        return [node]
-                    elif node.label == varname:
-                        return [node]
-                    else:
-                        return []
-
-            # subpatterns found so far among node’s children
-            index = 0
-            for subtree in node.subtrees():
-                if index >= len(pattern):
-                    break
-                new_nodes = find_pattern_aux(subtree, pattern[index], varname)
-                if new_nodes:
-                    nodes += new_nodes
-                    index += 1
-            if index < len(pattern):
-                nodes = []
-
-        else:
-            for child in node:
-                nodes = find_pattern_aux(child, pattern, varname)
-                if nodes:
-                    break
-        return nodes
-
-    for variable in get_variables(tree):
-        result = find_pattern_aux(tree, pattern, variable)
-        if result:
-            yield result
-
 def get_attributes(programs):
     # extract attributes from training data
     patterns = collections.defaultdict(list)