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GitHub Repository: AllenDowney/ModSimPy
 Path: blob/master/book/localdef.py
Views: 531
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import plasTeX.Base as Base

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def idgen():

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    """ Generate a unique ID """

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    i = 1

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    while 1:

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        yield 'a%.10d' % i

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        i += 1

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idgen = idgen()

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class Eqn(Base.Command):

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    args = 'self'

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class Anchor(Base.Command):

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    args = 'label:str'

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    def invoke(self, tex):

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        Base.Command.invoke(self, tex)

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        self.ownerDocument.context.label(self.attributes['label'], self)

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class exercise(Base.Environment):

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    counter = 'exercise'

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class index(Base.Command):

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    args = 'termstring'

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    def setEntry(self, s, seetype=0):

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    #    TYPE_NORMAL = 0

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    #    TYPE_SEE = 1

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    #    TYPE_SEEALSO = 2

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        if type(s) != type(''):

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            s = s.textContent

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        if s.count('!'):

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            priterm, secterm = s.split('!')

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            if priterm.count('@'):

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                prisort, primary = priterm.split('@')

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            else:

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                prisort, primary = None, priterm

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            if secterm.count('@'):

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                secsort, secondary = secterm.split('@')

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            else:

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                secsort, secondary = None, secterm

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        elif s.count('@'):

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            prisort, primary = s.split('@')

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            secsort, secondary = None, None

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        else:

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            prisort, primary = None, s

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            secsort, secondary = None, None

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#        if secondary:

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#            self.ownerDocument.userdata.setdefault('index', []).append(\

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#                Base.IndexEntry([primary, secondary], self, [prisort, secsort], None, type=seetype))

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#        else:

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#            self.ownerDocument.userdata.setdefault('index', []).append(\

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#                Base.IndexEntry([primary], self, [prisort], None, type=seetype))

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        return prisort, primary, secsort, secondary

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    def invoke(self, tex):

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        Base.Command.invoke(self, tex)

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        self.ownerDocument.context.label(idgen.next(), self)

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        p0,p1,s0,s1 = self.setEntry(self.attributes['termstring'])

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        if p0:

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            self.prisort = '%s' % p0

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        if p1:

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            self.primary = '%s' % p1

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        if s0:

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            self.secsort = '%s' % s0

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        if s1:

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            self.secondary = '%s' % s1

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class scriptN(Base.Command):

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       unicode = u'\U0001D4A9'

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class uxbar(Base.Command): pass

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class uybar(Base.Command): pass

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class unhat(Base.Command): pass

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class ule(Base.Command): pass

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class minus(Base.Command): pass

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class lowast(Base.Command): pass

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class Erdos(Base.Command): pass

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