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222 lines
7.8 KiB
Python
222 lines
7.8 KiB
Python
#!/usr/bin/env python
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###
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# Copyright (c) 2002, Jeremiah Fincher
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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#
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# * Redistributions of source code must retain the above copyright notice,
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# this list of conditions, and the following disclaimer.
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# * Redistributions in binary form must reproduce the above copyright notice,
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# this list of conditions, and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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# * Neither the name of the author of this software nor the name of
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# contributors to this software may be used to endorse or promote products
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# derived from this software without specific prior written consent.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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###
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"""
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Allows 'aliases' for other commands.
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"""
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from baseplugin import *
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import re
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import sets
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import conf
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import debug
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import utils
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import privmsgs
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import callbacks
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def configure(onStart, afterConnect, advanced):
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# This will be called by setup.py to configure this module. onStart and
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# afterConnect are both lists. Append to onStart the commands you would
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# like to be run when the bot is started; append to afterConnect the
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# commands you would like to be run when the bot has finished connecting.
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from questions import expect, anything, something, yn
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onStart.append('load Alias')
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example = utils.wrapLines("""
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<jemfinch> @list Alias
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<supybot> jemfinch: advogato, alias, debplanet, devshed, freeze, gnome, googlebsd, googlelinux, googlemac, k5, kde, kt, lambda, linuxmag, lj, lwn, nyttech, osnews, pypi, python, slashdot, unalias, unfreeze
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<jemfinch> (just pay attention to the freeze/unfreeze and alias/unalias)
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<jemfinch> @alias rot26 "rot13 [rot13 $1]"
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<supybot> jemfinch: The operation succeeded.
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<jemfinch> @rot26 jemfinch
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<supybot> jemfinch: jemfinch
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<jemfinch> @unalias rot26
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<supybot> jemfinch: The operation succeeded.
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<jemfinch> @rot26 jemfinch
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<jemfinch> (look, Ma! No rot26!)
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<Cerlyn> ooohh
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<jemfinch> @alias rot26 "rot13 [rot13 $1]"
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<supybot> jemfinch: The operation succeeded.
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<jemfinch> @freeze rot26
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<supybot> jemfinch: The operation succeeded.
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<jemfinch> (now's your queue :))
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<Cerlyn> @unalias rot26
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<supybot> Cerlyn: Error: That alias is frozen.
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<Cerlyn> @unalias rot26nothere
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<supybot> Cerlyn: Error: There is no such alias.
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<Cerlyn> @unfreeze rot26
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<supybot> Cerlyn: Error: You don't have the "admin" capability.
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<jemfinch> @unfreeze rot26
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<supybot> jemfinch: The operation succeeded.
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<jemfinch> (now try to remove it :))
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<Cerlyn> @unalias rot26
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<supybot> Cerlyn: The operation succeeded.
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<jemfinch> @rot26 blah blah blah
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<jemfinch> @help slashdot
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<supybot> jemfinch: slashdot <an alias, None arguments> (for more help use the morehelp command)
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<jemfinch> hehe...I should fix that.
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<jemfinch> @morehelp slashdot
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""")
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class RecursiveAlias(Exception):
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pass
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def findAliasCommand(s, alias):
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r = re.compile(r'(^|\[)\s*%s' % re.escape(s))
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return bool(r.search(alias))
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dollarRe = re.compile(r'\$(\d+)')
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def findBiggestDollar(alias):
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dollars = dollarRe.findall(alias)
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dollars = map(int, dollars)
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dollars.sort()
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if dollars:
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return dollars[-1]
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else:
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return None
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def makeNewAlias(name, alias):
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if findAliasCommand(name, alias):
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raise RecursiveAlias
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doChannel = '$channel' in alias
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biggestDollar = findBiggestDollar(alias)
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doDollars = bool(biggestDollar)
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if biggestDollar is not None:
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biggestDollar = int(biggestDollar)
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def f(self, irc, msg, args):
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alias_ = alias
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if doChannel:
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channel = privmsgs.getChannel(msg, args)
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alias_ = alias.replace('$channel', channel)
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if doDollars:
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args = privmsgs.getArgs(args, needed=biggestDollar)
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if biggestDollar == 1:
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args = (args,)
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def replace(m):
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idx = int(m.group(1))
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return args[idx-1]
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alias_ = dollarRe.sub(replace, alias_)
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self.Proxy(irc, msg, callbacks.tokenize(alias_))
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f.__doc__ ='<an alias, %s arguments>\n\nAlias for %r'%(biggestDollar,alias)
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#f = new.function(f.func_code, f.func_globals, name)
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return f
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class Alias(callbacks.Privmsg):
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def __init__(self):
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callbacks.Privmsg.__init__(self)
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self.frozen = sets.Set()
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def freeze(self, irc, msg, args):
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"""<alias>
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'Freezes' an alias so that no one else can change it.
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"""
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name = privmsgs.getArgs(args)
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name = callbacks.canonicalName(name)
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if hasattr(self, name) and self.isCommand(name):
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self.frozen.add(name)
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irc.reply(msg, conf.replySuccess)
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else:
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irc.error(msg, 'There is no such alias.')
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freeze = privmsgs.checkCapability(freeze, 'admin')
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def unfreeze(self, irc, msg, args):
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"""<alias>
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'Unfreezes' an alias so that people can define new aliases over it.
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"""
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name = privmsgs.getArgs(args)
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name = callbacks.canonicalName(name)
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if hasattr(self, name) and self.isCommand(name):
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self.frozen.discard(name)
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irc.reply(msg, conf.replySuccess)
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else:
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irc.error(msg, 'There is no such alias.')
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unfreeze = privmsgs.checkCapability(unfreeze, 'admin')
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def alias(self, irc, msg, args):
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"""<name> <alias commands>
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Defines an alias <name> for the commands <commands>. The <commands>
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should be in the standard [command argument [nestedcommand argument]]
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format. Underscores can be used to represent arguments to the alias
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itself; for instance ...
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"""
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(name, alias) = privmsgs.getArgs(args, needed=2)
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realName = callbacks.canonicalName(name)
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if name != realName:
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irc.error(msg, 'That name isn\'t valid. Try %r instead.' %\
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realName)
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return
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else:
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name = realName
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cb = irc.findCallback(name)
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if cb is not None and cb != self:
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irc.error(msg, 'A command with that name already exists.')
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return
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if name in self.frozen:
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irc.error(msg, 'That alias is frozen.')
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return
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try:
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f = makeNewAlias(name, alias)
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except RecursiveAlias:
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irc.error(msg, 'You can\'t define a recursive alias.')
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return
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setattr(self.__class__, name, f)
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irc.reply(msg, conf.replySuccess)
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def unalias(self, irc, msg, args):
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"""<name>
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Removes the given alias, if unfrozen.
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"""
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name = privmsgs.getArgs(args)
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name = callbacks.canonicalName(name)
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if hasattr(self, name) and self.isCommand(name):
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if name not in self.frozen:
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delattr(self.__class__, name)
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irc.reply(msg, conf.replySuccess)
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else:
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irc.error(msg, 'That alias is frozen.')
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else:
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irc.error(msg, 'There is no such alias.')
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Class = Alias
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# vim:set shiftwidth=4 tabstop=8 expandtab textwidth=78:
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