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Converted to use commands.
This commit is contained in:
Jeremy Fincher
parent
4c31e63ff8
commit
c563596405
102
plugins/Math.py
102
plugins/Math.py
@ -45,68 +45,53 @@ import string
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from itertools import imap
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import supybot.utils as utils
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import supybot.privmsgs as privmsgs
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from supybot.commands import wrap
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import supybot.callbacks as callbacks
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import convertcore
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baseArg = ('int', 'base', lambda i: i <= 36)
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class Math(callbacks.Privmsg):
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###
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# So this is how the 'calc' command works:
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# First, we make a nice little safe environment for evaluation; basically,
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# the names in the 'math' and 'cmath' modules. Then, we remove the ability
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# of a random user to get ints evaluated: this means we have to turn all
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# int literals (even octal numbers and hexadecimal numbers) into floats.
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# Then we delete all square brackets, underscores, and whitespace, so no
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# one can do list comprehensions or call __...__ functions.
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###
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def base(self, irc, msg, args):
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def base(self, irc, msg, args, frm, to, number):
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"""<fromBase> [<toBase>] <number>
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Converts from base <fromBase> to base <toBase>. If <toBase> is left
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out, it converts to decimal.
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"""
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(frm, to, number) = privmsgs.getArgs(args, required=2, optional=1)
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if number == '':
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number = to
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to = '10'
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try:
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frm = int(frm)
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to = int(to)
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if not ((2 <= frm <= 36) and (2 <= to <= 36)):
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raise ValueError
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except ValueError:
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irc.error('Bases must be an integer between 2 and 36.')
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return
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if not number:
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number = str(to)
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to = 10
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try:
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irc.reply(self._convertBaseToBase(number, to, frm))
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except ValueError:
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irc.error('Invalid <number> for base %s: %s' % (frm, number))
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base = wrap(base, [('int', 'base', lambda i: 2 <= i <= 36),
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('int?', 10, 'base', lambda i: 2 <= i <= 36),
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'?something'])
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def _convertDecimalToBase(self, number, base):
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"""
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Convert a decimal number to another base; returns a string.
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"""
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negative = False
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if number < 0:
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negative = True
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number = -number
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valStr = ''
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if number == 0:
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return '0'
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elif number < 0:
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negative = True
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number = -number
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else:
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negative = False
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digits = []
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while number != 0:
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digit = number % base
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if digit >= 10:
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digit = string.uppercase[digit - 10]
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else:
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digit = str(digit)
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valStr = digit + valStr
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digits.append(digit)
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number = number // base
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if negative:
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return '-%s' % valStr
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else:
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return valStr
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digits.reverse()
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return '-'*negative + ''.join(digits)
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def _convertBaseToBase(self, number, toBase, fromBase):
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"""
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@ -167,7 +152,16 @@ class Math(callbacks.Privmsg):
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else:
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return '%s%s' % (realS, imagS)
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def calc(self, irc, msg, args):
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###
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# So this is how the 'calc' command works:
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# First, we make a nice little safe environment for evaluation; basically,
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# the names in the 'math' and 'cmath' modules. Then, we remove the ability
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# of a random user to get ints evaluated: this means we have to turn all
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# int literals (even octal numbers and hexadecimal numbers) into floats.
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# Then we delete all square brackets, underscores, and whitespace, so no
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# one can do list comprehensions or call __...__ functions.
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###
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def calc(self, irc, msg, args, text):
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"""<math expression>
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Returns the value of the evaluated <math expression>. The syntax is
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@ -176,7 +170,6 @@ class Math(callbacks.Privmsg):
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crash to the bot with something like 10**10**10**10. One consequence
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is that large values such as 10**24 might not be exact.
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"""
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text = privmsgs.getArgs(args)
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if text != text.translate(string.ascii, '_[]'):
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irc.error('There\'s really no reason why you should have '
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'underscores or brackets in your mathematical '
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@ -216,15 +209,15 @@ class Math(callbacks.Privmsg):
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irc.error('%s is not a defined function.' % str(e).split()[1])
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except Exception, e:
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irc.error(str(e))
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calc = wrap(calc, ['text'])
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def icalc(self, irc, msg, args):
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def icalc(self, irc, msg, args, text):
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"""<math expression>
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This is the same as the calc command except that it allows integer
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math, and can thus cause the bot to suck up CPU. Hence it requires
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the 'trusted' capability to use.
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"""
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text = privmsgs.getArgs(args)
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if text != text.translate(string.ascii, '_[]'):
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irc.error('There\'s really no reason why you should have '
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'underscores or brackets in your mathematical '
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@ -249,7 +242,7 @@ class Math(callbacks.Privmsg):
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irc.error('%s is not a defined function.' % str(e).split()[1])
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except Exception, e:
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irc.error(utils.exnToString(e))
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icalc = privmsgs.checkCapability(icalc, 'trusted')
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icalc = wrap(icalc, [('checkCapability', 'trusted'), 'text'])
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_rpnEnv = {
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'dup': lambda s: s.extend([s.pop()]*2),
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@ -302,38 +295,22 @@ class Math(callbacks.Privmsg):
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s = ', '.join(imap(self._complexToString, imap(complex, stack)))
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irc.reply('Stack: [%s]' % s)
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def convert(self, irc, msg, args):
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def convert(self, irc, msg, args, number, unit1, to, unit2):
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"""[<number>] <unit> to <other unit>
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Converts from <unit> to <other unit>. If number isn't given, it
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defaults to 1. For unit information, see 'units' command.
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"""
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# see if the first arg is a number of some sort
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if args:
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try:
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num = float(args[0])
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args.pop(0)
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except ValueError:
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num = 1.0
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else:
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raise callbacks.ArgumentError
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try:
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the_rest = ' '.join(args)
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(unit1, unit2) = the_rest.split(' to ')
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except ValueError:
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raise callbacks.ArgumentError
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try:
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newNum = convertcore.convert(num, unit1, unit2)
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newNum = convertcore.convert(number, unit1, unit2)
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newNum = self._floatToString(newNum)
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irc.reply('%s' % newNum)
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irc.reply(str(newNum))
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except convertcore.UnitDataError, ude:
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irc.error(str(ude))
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convert = wrap(convert, [('float?', 1.0), 'something',
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('literal?', '', 'to'), 'something'])
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def units(self, irc, msg, args):
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def units(self, irc, msg, args, type):
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""" [<type>]
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With no arguments, returns a list of measurement types, which can be
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@ -341,11 +318,8 @@ class Math(callbacks.Privmsg):
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the units of that type.
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"""
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if len(args) == 0:
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type = None
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else:
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type = ' '.join(args)
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irc.reply(convertcore.units(type))
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units = wrap(units, [('?something', None)])
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Class = Math
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@ -78,15 +78,15 @@ class MathTestCase(PluginTestCase, PluginDocumentation):
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self.assertResponse('base 10 36 [base 36 csalnwea]', 'CSALNWEA')
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self.assertResponse('base 5 4 [base 4 5 212231]', '212231')
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self.assertRegexp('base 37 1', 'between 2 and 36')
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self.assertRegexp('base 1 1', 'between 2 and 36')
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self.assertRegexp('base 12 1 1', 'between 2 and 36')
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self.assertRegexp('base 1 12 1', 'between 2 and 36')
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self.assertRegexp('base 1.0 12 1', 'between 2 and 36')
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self.assertRegexp('base A 1', 'between 2 and 36')
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self.assertError('base 37 1')
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self.assertError('base 1 1')
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self.assertError('base 12 1 1')
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self.assertError('base 1 12 1')
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self.assertError('base 1.0 12 1')
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self.assertError('base A 1')
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self.assertRegexp('base 4 4', 'Invalid <number>')
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self.assertRegexp('base 10 12 A', 'Invalid <number>')
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self.assertError('base 4 4')
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self.assertError('base 10 12 A')
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print
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print "If we have not fixed a bug with Math.base, the following ",
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@ -163,10 +163,8 @@ class MathTestCase(PluginTestCase, PluginDocumentation):
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self.assertError('convert 1 m to kpa')
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def testConvertSingularPlural(self):
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self.assertResponse('convert [calc 2*pi] rads to degrees',
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'360')
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self.assertResponse('convert 1 carat to grams',
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'0.2')
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self.assertResponse('convert [calc 2*pi] rads to degrees', '360')
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self.assertResponse('convert 1 carat to grams', '0.2')
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self.assertResponse('convert 10 lbs to oz', '160')
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self.assertResponse('convert mA to amps', '0.001')
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