Add format module: wrap arguments and result

Author: ggreg

swf/format.py

@@ -0,0 +1,27 @@
+import constants
+
+
+def wrap(message, max_length):
+    if not message:
+        return message
+
+    if len(message) > max_length:
+        return message[:max_length]
+
+    return message
+
+
+def reason(message):
+    return wrap(message, constants.MAX_REASON_LENGTH)
+
+
+def details(message):
+    return wrap(message, constants.MAX_DETAILS_LENGTH)
+
+
+def input(message):
+    return wrap(message, constants.MAX_INPUT_LENGTH)
+
+
+def result(message):
+    return wrap(message, constants.MAX_RESULT_LENGTH)