New module man that prints man pages on IRC

modules/man.py

@@ -0,0 +1,46 @@
+# coding=utf-8
+
+import subprocess
+import re
+
+nemubotversion = 3.3
+
+def load(context):
+    from hooks import Hook
+    add_hook("cmd_hook", Hook(cmd_man, "man"))
+
+def help_tiny ():
+    """Line inserted in the response to the command !help"""
+    return "Read man on IRC"
+
+def help_full ():
+    return "!man [0-9] /what/: gives informations about /what/."
+
+RGXP_s = re.compile(b'\x1b\\[[0-9]+m')
+
+def cmd_man(msg):
+    args = ["man"]
+    num = None
+    if len(msg.cmds) == 2:
+        args.append(msg.cmds[1])
+    elif len(msg.cmds) >= 3:
+        try:
+            num = int(msg.cmds[1])
+            args.append("%d" % num)
+            args.append(msg.cmds[2])
+        except ValueError:
+            args.append(msg.cmds[1])
+
+    res = Response(msg.sender, channel=msg.channel)
+    with subprocess.Popen(args, stdout=subprocess.PIPE, stderr=subprocess.PIPE) as proc:
+        for line in proc.stdout.read().split(b"\n"):
+            (line, n) = RGXP_s.subn(b'', line)
+            res.append_message(line.decode())
+
+    if len(res.messages) <= 0:
+        if num is not None:
+            res.append_message("Il n'y a pas d'entrée %s dans la section %d du manuel." % (msg.cmds[1], num))
+        else:
+            res.append_message("Il n'y a pas de page de manuel pour %s." % msg.cmds[1])
+
+    return res