[cat] New module performing cat like action

modules/cat.py

@@ -0,0 +1,55 @@
+"""Concatenate commands"""
+
+# PYTHON STUFFS #######################################################
+
+from nemubot import context
+from nemubot.exception import IMException
+from nemubot.hooks import hook
+from nemubot.message import Command, DirectAsk, Text
+
+from more import Response
+
+
+# MODULE CORE #########################################################
+
+def cat(msg, *terms):
+    res = Response(channel=msg.to_response, server=msg.server)
+    for term in terms:
+        m = context.subparse(msg, term)
+        if isinstance(m, Command) or isinstance(m, DirectAsk):
+            for r in context.subtreat(m):
+                if isinstance(r, Response):
+                    for t in range(len(r.messages)):
+                        res.append_message(r.messages[t],
+                                           title=r.rawtitle if not isinstance(r.rawtitle, list) else r.rawtitle[t])
+
+                elif isinstance(r, Text):
+                    res.append_message(r.message)
+
+                elif isinstance(r, str):
+                    res.append_message(r)
+
+        else:
+            res.append_message(term)
+
+    return res
+
+
+# MODULE INTERFACE ####################################################
+
+@hook.command("cat",
+              help="Concatenate responses of commands given as argument",
+              help_usage={"!SUBCMD [!SUBCMD [...]]": "Concatenate response of subcommands"},
+              keywords={
+                  "merge": "Merge messages into the same",
+              })
+def cmd_cat(msg):
+    if len(msg.args) < 1:
+        raise IMException("No subcommand to concatenate")
+
+    r = cat(msg, *msg.args)
+
+    if "merge" in msg.kwargs and len(r.messages) > 1:
+        r.messages = [ r.messages ]
+
+    return r