mirror of
https://github.com/Mikaela/Limnoria.git
synced 2024-11-23 19:19:32 +01:00
New Markov implementation. It's still broken, but I gotta run, so I'll fix it later.
This commit is contained in:
Jeremy Fincher
parent
f44f5410f3
commit
d81ca6fa08
@ -40,82 +40,159 @@ __revision__ = "$Id$"
|
||||
|
||||
import supybot.plugins as plugins
|
||||
|
||||
import Queue
|
||||
import anydbm
|
||||
import random
|
||||
import os.path
|
||||
import threading
|
||||
|
||||
import supybot.ircmsgs as ircmsgs
|
||||
import supybot.ircutils as ircutils
|
||||
import supybot.privmsgs as privmsgs
|
||||
import supybot.callbacks as callbacks
|
||||
|
||||
try:
|
||||
import sqlite
|
||||
except ImportError:
|
||||
raise callbacks.Error, 'You need to have PySQLite installed to use this ' \
|
||||
'plugin. Download it at <http://pysqlite.sf.net/>'
|
||||
class MarkovDBInterface(object):
|
||||
def close(self):
|
||||
pass
|
||||
|
||||
def addPair(self, channel, first, second, follower,
|
||||
isFirst=False, isLast=False):
|
||||
pass
|
||||
|
||||
class Markov(plugins.ChannelDBHandler, callbacks.Privmsg):
|
||||
threaded = True
|
||||
def getFirstPair(self, channel):
|
||||
pass
|
||||
|
||||
def getPair(self, channel, first, second):
|
||||
# Returns (follower, last) tuple.
|
||||
pass
|
||||
|
||||
class SqliteMarkovDB(object):
|
||||
def addPair(self, channel, first, second, follower,
|
||||
isFirst=False, isLast=False):
|
||||
pass
|
||||
|
||||
def getFirstPair(self, channel):
|
||||
pass
|
||||
|
||||
def getFollower(self, channel, first, second):
|
||||
# Returns (follower, last) tuple.
|
||||
pass
|
||||
|
||||
|
||||
class DbmMarkovDB(object):
|
||||
def __init__(self):
|
||||
plugins.ChannelDBHandler.__init__(self)
|
||||
callbacks.Privmsg.__init__(self)
|
||||
self.dbs = ircutils.IrcDict()
|
||||
|
||||
def close(self):
|
||||
for db in self.dbs.values():
|
||||
db.close()
|
||||
|
||||
def makeDb(self, filename):
|
||||
if os.path.exists(filename):
|
||||
return sqlite.connect(filename)
|
||||
db = sqlite.connect(filename)
|
||||
cursor = db.cursor()
|
||||
cursor.execute("""CREATE TABLE pairs (
|
||||
id INTEGER PRIMARY KEY,
|
||||
first TEXT,
|
||||
second TEXT,
|
||||
is_first BOOLEAN,
|
||||
UNIQUE (first, second) ON CONFLICT IGNORE
|
||||
)""")
|
||||
cursor.execute("""CREATE TABLE follows (
|
||||
id INTEGER PRIMARY KEY,
|
||||
pair_id INTEGER,
|
||||
word TEXT
|
||||
)""")
|
||||
cursor.execute("""CREATE INDEX follows_pair_id ON follows (pair_id)""")
|
||||
db.commit()
|
||||
return db
|
||||
def _getDb(self, channel):
|
||||
if channel not in self.dbs:
|
||||
# Stupid anydbm seems to append .db to the end of this.
|
||||
self.dbs[channel] = anydbm.open('%s-DbmMarkovDB' % channel, 'c')
|
||||
self.dbs[channel]['lasts'] = ''
|
||||
self.dbs[channel]['firsts'] = ''
|
||||
return self.dbs[channel]
|
||||
|
||||
def _addFirst(self, db, combined):
|
||||
db['firsts'] = db['firsts'] + (combined + '\n')
|
||||
|
||||
def _addLast(self, db, second, follower):
|
||||
combined = self._combine(second, follower)
|
||||
db['lasts'] = db['lasts'] + (combined + '\n')
|
||||
|
||||
def addPair(self, channel, first, second, follower,
|
||||
isFirst=False, isLast=False):
|
||||
db = self._getDb(channel)
|
||||
combined = self._combine(first, second)
|
||||
if isFirst:
|
||||
self._addFirst(db, combined)
|
||||
elif isLast:
|
||||
self._addLast(db, second, follower)
|
||||
else:
|
||||
if db.has_key(combined): # EW!
|
||||
db[combined] = db[combined] + (' ' + follower)
|
||||
else:
|
||||
db[combined] = follower
|
||||
#db.flush()
|
||||
|
||||
def getFirstPair(self, channel):
|
||||
db = self._getDb(channel)
|
||||
firsts = db['firsts'].splitlines()
|
||||
if firsts:
|
||||
firsts.pop() # Empty line.
|
||||
if firsts:
|
||||
return random.choice(firsts).split()
|
||||
else:
|
||||
raise KeyError, 'No firsts for %s.' % channel
|
||||
else:
|
||||
raise KeyError, 'No firsts for %s.' % channel
|
||||
|
||||
def _combine(self, first, second):
|
||||
return '%s %s' % (first, second)
|
||||
|
||||
def getFollower(self, channel, first, second):
|
||||
db = self._getDb(channel)
|
||||
followers = db[self._combine(first, second)]
|
||||
follower = random.choice(followers.split())
|
||||
if self._combine(second, follower) in db['lasts']:
|
||||
last = True
|
||||
else:
|
||||
last = False
|
||||
return (follower, last)
|
||||
|
||||
def MarkovDB():
|
||||
return DbmMarkovDB()
|
||||
|
||||
class MarkovWorkQueue(threading.Thread):
|
||||
def __init__(self, *args, **kwargs):
|
||||
threading.Thread.__init__(self)
|
||||
self.db = MarkovDB(*args, **kwargs)
|
||||
self.q = Queue.Queue()
|
||||
self.killed = False
|
||||
self.start()
|
||||
|
||||
def die(self):
|
||||
self.killed = True
|
||||
|
||||
def enqueue(self, f):
|
||||
self.q.put(f)
|
||||
|
||||
def run(self):
|
||||
while not self.killed:
|
||||
f = self.q.get()
|
||||
f(self.db)
|
||||
self.db.close()
|
||||
|
||||
class Markov(callbacks.Privmsg):
|
||||
def __init__(self):
|
||||
self.q = MarkovWorkQueue()
|
||||
callbacks.Privmsg.__init__(self)
|
||||
|
||||
def die(self):
|
||||
self.q.die()
|
||||
|
||||
def tokenize(self, s):
|
||||
# XXX: Should this be smarter?
|
||||
return s.split()
|
||||
|
||||
def doPrivmsg(self, irc, msg):
|
||||
if not ircutils.isChannel(msg.args[0]):
|
||||
return
|
||||
channel = msg.args[0]
|
||||
db = self.getDb(channel)
|
||||
cursor = db.cursor()
|
||||
if ircmsgs.isAction(msg):
|
||||
words = ircmsgs.unAction(msg).split()
|
||||
else:
|
||||
words = msg.args[1].split()
|
||||
isFirst = True
|
||||
for (first, second, follower) in window(words, 3):
|
||||
if isFirst:
|
||||
cursor.execute("""INSERT OR REPLACE
|
||||
INTO pairs VALUES (NULL, %s, %s, 1)""",
|
||||
first, second)
|
||||
isFirst = False
|
||||
else:
|
||||
cursor.execute("INSERT INTO pairs VALUES (NULL, %s, %s, 0)",
|
||||
first, second)
|
||||
cursor.execute("""SELECT id FROM pairs
|
||||
WHERE first=%s AND second=%s""", first, second)
|
||||
id = int(cursor.fetchone()[0])
|
||||
cursor.execute("""INSERT INTO follows VALUES (NULL, %s, %s)""",
|
||||
id, follower)
|
||||
if not isFirst: # i.e., if the loop iterated at all.
|
||||
cursor.execute("""INSERT INTO pairs VALUES (NULL, %s, %s, 0)""",
|
||||
second, follower)
|
||||
cursor.execute("""SELECT id FROM pairs
|
||||
WHERE first=%s AND second=%s""", second,follower)
|
||||
id = int(cursor.fetchone()[0])
|
||||
cursor.execute("INSERT INTO follows VALUES (NULL, %s, NULL)", id)
|
||||
db.commit()
|
||||
|
||||
_maxMarkovLength = 80
|
||||
_minMarkovLength = 7
|
||||
if ircutils.isChannel(channel):
|
||||
words = self.tokenize(msg.args[1])
|
||||
if len(words) >= 3:
|
||||
def doPrivmsg(db):
|
||||
db.addPair(channel, words[0], words[1], words[2],
|
||||
isFirst=True)
|
||||
db.addPair(channel, words[-3], words[-2], words[-1],
|
||||
isLast=True)
|
||||
del words[0] # Remove first.
|
||||
del words[-1] # Remove last.
|
||||
for (first, second, follower) in window(words, 3):
|
||||
db.addPair(channel, first, second, follower)
|
||||
self.q.enqueue(doPrivmsg)
|
||||
|
||||
def markov(self, irc, msg, args):
|
||||
"""[<channel>]
|
||||
|
||||
@ -123,99 +200,19 @@ class Markov(plugins.ChannelDBHandler, callbacks.Privmsg):
|
||||
data kept on <channel> (which is only necessary if not sent in the
|
||||
channel itself).
|
||||
"""
|
||||
argsCopy = args[:]
|
||||
channel = privmsgs.getChannel(msg, args)
|
||||
db = self.getDb(channel)
|
||||
cursor = db.cursor()
|
||||
words = []
|
||||
cursor.execute("""SELECT id, first, second FROM pairs
|
||||
WHERE is_first=1
|
||||
ORDER BY random()
|
||||
LIMIT 1""")
|
||||
if cursor.rowcount == 0:
|
||||
irc.error('I have no records for that channel.')
|
||||
return
|
||||
(id, first, second) = cursor.fetchone()
|
||||
id = int(id)
|
||||
words.append(first)
|
||||
words.append(second)
|
||||
sql = """SELECT follows.word FROM pairs, follows
|
||||
WHERE pairs.first=%s AND
|
||||
pairs.second=%s AND
|
||||
pairs.id=follows.pair_id
|
||||
ORDER BY random()
|
||||
LIMIT 1"""
|
||||
while len(words) < self._maxMarkovLength:
|
||||
cursor.execute(sql, words[-2], words[-1])
|
||||
results = cursor.fetchone()
|
||||
if not results:
|
||||
break
|
||||
word = results[0]
|
||||
if word is None:
|
||||
break
|
||||
words.append(word)
|
||||
if len(words) < self._minMarkovLength:
|
||||
self.markov(irc, msg, argsCopy)
|
||||
else:
|
||||
def markov(db):
|
||||
try:
|
||||
words = list(db.getFirstPair(channel))
|
||||
except KeyError:
|
||||
irc.error('I don\'t have any first pairs for %s.' % channel)
|
||||
return
|
||||
last = False
|
||||
while not last:
|
||||
(follower,last) = db.getFollower(channel, words[-2], words[-1])
|
||||
words.append(follower)
|
||||
irc.reply(' '.join(words))
|
||||
|
||||
def pairs(self, irc, msg, args):
|
||||
"""[<channel>]
|
||||
|
||||
Returns the number of Markov's chain links in the database for
|
||||
<channel>.
|
||||
"""
|
||||
channel = privmsgs.getChannel(msg, args)
|
||||
db = self.getDb(channel)
|
||||
cursor = db.cursor()
|
||||
cursor.execute("""SELECT COUNT(*) FROM pairs""")
|
||||
n = int(cursor.fetchone()[0])
|
||||
s = 'There are %s pairs in my Markov database for %s' % (n, channel)
|
||||
irc.reply(s)
|
||||
|
||||
def firsts(self, irc, msg, args):
|
||||
"""[<channel>]
|
||||
|
||||
Returns the number of Markov's first links in the database for
|
||||
<channel>.
|
||||
"""
|
||||
channel = privmsgs.getChannel(msg, args)
|
||||
db = self.getDb(channel)
|
||||
cursor = db.cursor()
|
||||
cursor.execute("""SELECT COUNT(*) FROM pairs WHERE is_first=1""")
|
||||
n = int(cursor.fetchone()[0])
|
||||
s = 'There are %s first pairs in my Markov database for %s'%(n,channel)
|
||||
irc.reply(s)
|
||||
|
||||
def follows(self, irc, msg, args):
|
||||
"""[<channel>]
|
||||
|
||||
Returns the number of Markov's third links in the database for
|
||||
<channel>.
|
||||
"""
|
||||
channel = privmsgs.getChannel(msg, args)
|
||||
db = self.getDb(channel)
|
||||
cursor = db.cursor()
|
||||
cursor.execute("""SELECT COUNT(*) FROM follows""")
|
||||
n = int(cursor.fetchone()[0])
|
||||
s = 'There are %s follows in my Markov database for %s' % (n, channel)
|
||||
irc.reply(s)
|
||||
|
||||
def lasts(self, irc, msg, args):
|
||||
"""[<channel>]
|
||||
|
||||
Returns the number of Markov's last links in the database for
|
||||
<channel>.
|
||||
"""
|
||||
channel = privmsgs.getChannel(msg, args)
|
||||
db = self.getDb(channel)
|
||||
cursor = db.cursor()
|
||||
cursor.execute("""SELECT COUNT(*) FROM follows WHERE word ISNULL""")
|
||||
n = int(cursor.fetchone()[0])
|
||||
s = 'There are %s lasts in my Markov database for %s' % (n, channel)
|
||||
irc.reply(s)
|
||||
self.q.enqueue(markov)
|
||||
|
||||
|
||||
Class = Markov
|
||||
|
||||
# vim:set shiftwidth=4 tabstop=8 expandtab textwidth=78:
|
||||
|
||||
Loading…
Reference in New Issue
Block a user