1 files changed, 32 insertions, 0 deletions
diff --git a/alot/completion/stringlist.py b/alot/completion/stringlist.py
new file mode 100644
index 00000000..9d7fa3d3
--- /dev/null
+++ b/alot/completion/stringlist.py
@@ -0,0 +1,32 @@
+# Copyright (C) 2011-2019  Patrick Totzke <patricktotzke@gmail.com>
+# This file is released under the GNU GPL, version 3 or a later revision.
+# For further details see the COPYING file
+import re
+
+from .completer import Completer
+
+
+class StringlistCompleter(Completer):
+    """Completer for a fixed list of strings."""
+
+    def __init__(self, resultlist, ignorecase=True, match_anywhere=False):
+        """
+        :param resultlist: strings used for completion
+        :type resultlist: list of str
+        :param liberal: match case insensitive and not prefix-only
+        :type liberal: bool
+        """
+        self.resultlist = resultlist
+        self.flags = re.IGNORECASE if ignorecase else 0
+        self.match_anywhere = match_anywhere
+
+    def complete(self, original, pos):
+        pref = original[:pos]
+
+        re_prefix = '.*' if self.match_anywhere else ''
+
+        def match(s, m):
+            r = '{}{}.*'.format(re_prefix, re.escape(m))
+            return re.match(r, s, flags=self.flags) is not None
+
+        return [(a, len(a)) for a in self.resultlist if match(a, pref)]