Limnoria/plugins/Topic.py

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2003-03-12 07:26:59 +01:00
#!/usr/bin/env python
###
# Copyright (c) 2002, Jeremiah Fincher
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# * Redistributions of source code must retain the above copyright notice,
# this list of conditions, and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright notice,
# this list of conditions, and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# * Neither the name of the author of this software nor the name of
# contributors to this software may be used to endorse or promote products
# derived from this software without specific prior written consent.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
###
"""
Provides commands for manipulating channel topics.
"""
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__revision__ = "$Id$"
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__author__ = 'Jeremy Fincher (jemfinch) <jemfinch@users.sf.net>'
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import supybot.plugins as plugins
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import re
import random
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import supybot.conf as conf
import supybot.utils as utils
import supybot.ircdb as ircdb
import supybot.ircmsgs as ircmsgs
import supybot.plugins as plugins
import supybot.ircutils as ircutils
import supybot.privmsgs as privmsgs
import supybot.registry as registry
import supybot.callbacks as callbacks
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conf.registerPlugin('Topic')
conf.registerChannelValue(conf.supybot.plugins.Topic, 'separator',
registry.StringSurroundedBySpaces(' || ', """Determines what separator is
used between individually added topics in the channel topic."""))
class TopicFormat(registry.String):
"Value must include $topic, otherwise the actual topic would be left out."
def setValue(self, v):
if '$topic' in v or '${topic}' in v:
registry.String.setValue(self, v)
else:
self.error()
conf.registerChannelValue(conf.supybot.plugins.Topic, 'format',
TopicFormat('$topic ($nick)', """Determines what format is used to add
topics in the topic. All the standard substitutes apply, in addiction to
"$topic" for the topic itself."""))
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class Topic(callbacks.Privmsg):
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def __init__(self):
callbacks.Privmsg.__init__(self)
self.lastTopics = ircutils.IrcDict()
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def _splitTopic(self, topic, channel):
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separator = self.registryValue('separator', channel)
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return filter(None, topic.split(separator))
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def _joinTopic(self, channel, topics):
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separator = self.registryValue('separator', channel)
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return separator.join(topics)
def _formatTopic(self, irc, msg, channel, topic):
formatter = self.registryValue('format', channel)
env = {'topic': topic}
return plugins.standardSubstitute(irc, msg, formatter, env)
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def _sendTopic(self, irc, channel, topics):
topics = [s for s in topics if s and not s.isspace()]
self.lastTopics[channel] = topics
newTopic = self._joinTopic(channel, topics)
irc.queueMsg(ircmsgs.topic(channel, newTopic))
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def add(self, irc, msg, args, channel):
"""[<channel>] <topic>
Adds <topic> to the topics for <channel>. <channel> is only necessary
if the message isn't sent in the channel itself.
"""
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topic = privmsgs.getArgs(args)
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separator = self.registryValue('separator', channel)
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if separator in topic:
s = 'You can\'t have %s in your topic' % separator
irc.error(s)
return
currentTopic = irc.state.getTopic(channel)
formattedTopic = self._formatTopic(irc, msg, channel, topic)
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# Empties are removed by _sendTopic.
self._sendTopic(irc, channel, [currentTopic, formattedTopic])
add = privmsgs.channel(add)
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def shuffle(self, irc, msg, args, channel):
"""[<channel>]
Shuffles the topics in <channel>. <channel> is only necessary if the
message isn't sent in the channel itself.
"""
newtopic = irc.state.getTopic(channel)
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topics = self._splitTopic(irc.state.getTopic(channel), channel)
if len(topics) == 0 or len(topics) == 1:
irc.error('I can\'t shuffle 1 or fewer topics.')
return
elif len(topics) == 2:
topics.reverse()
else:
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original = topics[:]
while topics == original:
random.shuffle(topics)
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self._sendTopic(irc, channel, topics)
shuffle = privmsgs.channel(shuffle)
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def reorder(self, irc, msg, args, channel):
"""[<channel>] <number> [<number> ...]
Reorders the topics from <channel> in the order of the specified
<number> arguments. <number> is a one-based index into the topics.
<channel> is only necessary if the message isn't sent in the channel
itself.
"""
topics = self._splitTopic(irc.state.getTopic(channel), channel)
num = len(topics)
if num == 0 or num == 1:
irc.error('I cannot reorder 1 or fewer topics.')
return
if len(args) != num:
irc.error('All topic numbers must be specified.')
return
order = privmsgs.getArgs(args, required=num)
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if topics:
for i,p in enumerate(order):
try:
p = int(p)
if p > 0:
order[i] = p - 1
elif p == 0:
irc.error('0 is not a valid topic number.')
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return
else:
order[i] = num + p
except ValueError:
irc.error('The positions must be valid integers.')
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return
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if sorted(order) != range(num):
irc.error('Duplicate topic numbers cannot be specified.')
return
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try:
newtopics = [topics[i] for i in order]
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self._sendTopic(irc, channel, newtopics)
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except IndexError:
irc.error('An invalid topic number was specified.')
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else:
irc.error('There are no topics to reorder.')
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reorder = privmsgs.channel(reorder)
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def list(self, irc, msg, args, channel):
"""[<channel>] <number>
Returns a list of the topics in <channel>, prefixed by their indexes.
Mostly useful for topic reordering. <channel> is only necessary if the
message isn't sent in the channel itself.
"""
topics = self._splitTopic(irc.state.getTopic(channel), channel)
L = []
for (i, t) in enumerate(topics):
L.append('%s: %s' % (i+1, utils.ellipsisify(t, 30)))
s = utils.commaAndify(L)
irc.reply(s)
list = privmsgs.channel(list)
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def get(self, irc, msg, args, channel):
"""[<channel>] <number>
Returns topic number <number> from <channel>. <number> is a one-based
index into the topics. <channel> is only necessary if the message
isn't sent in the channel itself.
"""
number = privmsgs.getArgs(args)
try:
number = int(number)
if number > 0:
number -= 1
elif number == 0:
irc.error('That\'s not a valid topic number.')
return
except ValueError:
irc.error('The argument must be a valid integer.')
return
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topics = self._splitTopic(irc.state.getTopic(channel), channel)
if topics:
try:
irc.reply(topics[number])
except IndexError:
irc.error('That\'s not a valid topic.')
else:
irc.error('There are no topics to get.')
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get = privmsgs.channel(get)
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def change(self, irc, msg, args, channel):
"""[<channel>] <number> <regexp>
Changes the topic number <number> on <channel> according to the regular
expression <regexp>. <number> is the one-based index into the topics;
<regexp> is a regular expression of the form
s/regexp/replacement/flags. <channel> is only necessary if the message
isn't sent in the channel itself.
"""
(number, regexp) = privmsgs.getArgs(args, required=2)
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try:
number = int(number)
if number > 0:
number -= 1
elif number == 0:
irc.error('That\'s not a valid topic number.')
return
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except ValueError:
irc.error('The <number> argument must be a number.')
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return
try:
replacer = utils.perlReToReplacer(regexp)
except ValueError, e:
irc.error('The regexp wasn\'t valid: %s' % e.args[0])
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return
except re.error, e:
irc.error(utils.exnToString(e))
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return
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topics = self._splitTopic(irc.state.getTopic(channel), channel)
if not topics:
irc.error('There are no topics to change.')
return
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topic = topics.pop(number)
newTopic = replacer(topic)
if number < 0:
number = len(topics)+1+number
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topics.insert(number, newTopic)
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self._sendTopic(irc, channel, topics)
change = privmsgs.channel(change)
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def remove(self, irc, msg, args, channel):
"""[<channel>] <number>
Removes topic <number> from the topic for <channel> Topics are
numbered starting from 1; you can also use negative indexes to refer
to topics starting the from the end of the topic. <channel> is only
necessary if the message isn't sent in the channel itself.
"""
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try:
number = int(privmsgs.getArgs(args))
if number > 0:
number -= 1
elif number == 0:
irc.error('That\'s not a valid topic number.')
return
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except ValueError:
irc.error('The argument must be a number.')
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return
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topics = self._splitTopic(irc.state.getTopic(channel), channel)
try:
topic = topics.pop(number)
except IndexError:
irc.error('That\'s not a valid topic number.')
return
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self._sendTopic(irc, channel, topics)
remove = privmsgs.channel(remove)
def lock(self, irc, msg, args, channel):
"""[<channel>]
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Locks the topic (sets the mode +t) in <channel>. <channel> is only
necessary if the message isn't sent in the channel itself.
"""
if irc.nick in irc.state.channels[channel].ops:
irc.queueMsg(ircmsgs.mode(channel, '+t'))
else:
irc.error('How can I unlock the topic, I\'m not opped!')
lock = privmsgs.channel(lock)
def unlock(self, irc, msg, args, channel):
"""[<channel>]
Locks the topic (sets the mode +t) in <channel>. <channel> is only
necessary if the message isn't sent in the channel itself.
"""
if irc.nick in irc.state.channels[channel].ops:
irc.queueMsg(ircmsgs.mode(channel, '-t'))
else:
irc.error('How can I unlock the topic, I\'m not opped!')
unlock = privmsgs.channel(unlock)
def restore(self, irc, msg, args, channel):
"""[<channel>]
Restores the topic to the last topic set by the bot. <channel> is only
necessary if the message isn't sent in the channel itself.
"""
try:
topics = self.lastTopics[channel]
except KeyError:
irc.error('I haven\'t yet set the topic in %s.' % channel)
return
self._sendTopic(irc, channel, topics)
restore = privmsgs.channel(restore)
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Class = Topic
# vim:set shiftwidth=4 tabstop=8 expandtab textwidth=78: