1 files changed, 40 insertions, 0 deletions
diff --git a/paste/deploy/converters.py b/paste/deploy/converters.py
new file mode 100644
index 0000000..c9d87de
--- /dev/null
+++ b/paste/deploy/converters.py
@@ -0,0 +1,40 @@
+# (c) 2005 Ian Bicking and contributors; written for Paste (http://pythonpaste.org)
+# Licensed under the MIT license: http://www.opensource.org/licenses/mit-license.php
+from paste.deploy.compat import basestring
+
+
+truthy = frozenset(['true', 'yes', 'on', 'y', 't', '1'])
+falsy = frozenset(['false', 'no', 'off', 'n', 'f', '0'])
+
+
+def asbool(obj):
+    if isinstance(obj, basestring):
+        obj = obj.strip().lower()
+        if obj in truthy:
+            return True
+        elif obj in falsy:
+            return False
+        else:
+            raise ValueError("String is not true/false: %r" % obj)
+    return bool(obj)
+
+
+def asint(obj):
+    try:
+        return int(obj)
+    except (TypeError, ValueError):
+        raise ValueError("Bad integer value: %r" % obj)
+
+
+def aslist(obj, sep=None, strip=True):
+    if isinstance(obj, basestring):
+        lst = obj.split(sep)
+        if strip:
+            lst = [v.strip() for v in lst]
+        return lst
+    elif isinstance(obj, (list, tuple)):
+        return obj
+    elif obj is None:
+        return []
+    else:
+        return [obj]