implement a sed style correction method

plugins/correction.py

@@ -0,0 +1,41 @@
+from util import hook
+import re
+
+db_ready=False
+
+# from seen.py
+def db_init(db):
+    "check to see that our db has the the correction table and return a connection."
+    db.execute("create table if not exists correct_user(name, quote, chan, "
+                 "primary key(name, chan))")
+    db.commit()
+    db_ready = True
+
+@hook.singlethread
+@hook.event('PRIVMSG')
+def message_sieve(paraml, input=None, db=None, bot=None):
+    if not db_ready:
+        db_init(db)
+    if not re.findall('^s/.*/.*/$', input.msg.lower()):
+        db.execute("insert or replace into correct_user(name, quote, chan)"
+            "values(?,?,?)", (input.nick.lower(), input.msg, input.chan.lower()))
+        db.commit()
+
+@hook.regex(r'^(s|S)/.*/.*/$')
+def correction(inp, say=None, input=None, notice=None, db=None):
+    if not db_ready:
+        db_init(db)
+
+    last_message = db.execute("select name, quote from correct_user where name"
+                           " like ? and chan = ?", (input.nick.lower(), input.chan.lower())).fetchone()
+
+    if last_message:
+        splitinput = input.msg.split("/")
+        find = splitinput[1]
+        replace = splitinput[2]
+        if find in last_message[1]:
+            say("%s meant to say: %s" % (input.nick, last_message[1].replace(find, replace)))
+        else:
+            notice("%s can't be found in your last message" % find)
+    else:
+        notice("I haven't seen you say anything here yet")