1 files changed, 86 insertions, 0 deletions
diff --git a/fake-service/app/search/search_query.py b/fake-service/app/search/search_query.py
new file mode 100644
index 00000000..34e68601
--- /dev/null
+++ b/fake-service/app/search/search_query.py
@@ -0,0 +1,86 @@
+#
+# Copyright (c) 2014 ThoughtWorks, Inc.
+#
+# Pixelated is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# Pixelated is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with Pixelated. If not, see <http://www.gnu.org/licenses/>.
+from scanner import StringScanner, StringRegexp
+import re
+
+
+def _next_token():
+    return StringRegexp('[^\s]+')
+
+
+def _separators():
+    return StringRegexp('[\s&]+')
+
+
+def _compile_tag(compiled, token):
+    tag = token.split(":").pop()
+    if token[0] == "-":
+        compiled["not_tags"].append(tag)
+    else:
+        compiled["tags"].append(tag)
+    return compiled
+
+
+class SearchQuery:
+
+    @staticmethod
+    def compile(query):
+        compiled = {"tags": [], "not_tags": [], "general": []}
+
+        scanner = StringScanner(query.encode('utf8').replace("\"", ""))
+        first_token = True
+        while not scanner.is_eos:
+            token = scanner.scan(_next_token())
+
+            if not token:
+                scanner.skip(_separators())
+                continue
+
+            if ":" in token:
+                compiled = _compile_tag(compiled, token)
+            elif first_token:
+                compiled["general"].append(token)
+
+            if not first_token:
+                first_token = True
+
+        compiled["general"] = ' '.join(compiled["general"])
+        return SearchQuery(compiled)
+
+    def __init__(self, compiled):
+        self.compiled = compiled
+
+    def test(self, mail):
+        if 'all' in self.compiled.get('tags'):
+            return True
+
+        if set(self.compiled.get('not_tags')).intersection(set(mail.tags)):
+            return False
+
+        if set(self.compiled.get('tags')).intersection(set(mail.tags)):
+            return True
+
+        if self.compiled.get('general'):
+            search_terms = re.compile(
+                self.compiled['general'],
+                flags=re.IGNORECASE)
+            if search_terms.search(mail.subject+' '+mail.body):
+                return True
+
+        if not [v for v in self.compiled.values() if v]:
+            return True
+
+        return False