Move Renderable to own file
This commit is contained in:
Benjamin Bertrand
parent
20cae3e0a5
commit
79104522ac
@ -1,7 +1,7 @@
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#!/usr/bin/env python
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# encoding: utf-8
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from .render import Renderable
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from .renderable import Renderable
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from decimal import Decimal
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from .generic import transpose_fill
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@ -76,102 +76,6 @@ def p2i_render(token):
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return render
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p2i = Render(p2i_render)
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class Renderable(object):
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"""
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A Renderable object is an object which can work with Render class. It means that it has to have attribute postfix_tokens.
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"""
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STR_RENDER = tex
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DEFAULT_RENDER = tex
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@classmethod
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def set_render(cls, render):
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cls.STR_RENDER = render
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@classmethod
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def get_render(cls):
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return cls.STR_RENDER
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@classmethod
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def set_default_render(cls):
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cls.set_render(cls.DEFAULT_RENDER)
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@classmethod
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def tmp_render(cls, render=tex):
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""" Create a container in which Expression render is temporary modify
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The default temporary render is Expression in order to perform calculus inside numbers
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>>> from .expression import Expression
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>>> exp = Expression("2*3/5")
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>>> print(exp)
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2 \\times \\frac{ 3 }{ 5 }
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>>> for i in exp.simplify().explain():
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... print(i)
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2 \\times \\frac{ 3 }{ 5 }
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\\frac{ 3 }{ 5 } \\times 2
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\\frac{ 3 \\times 2 }{ 5 }
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\\frac{ 6 }{ 5 }
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>>> with Expression.tmp_render(txt):
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... for i in exp.simplify().explain():
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... print(i)
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2 * 3 / 5
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3 / 5 * 2
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( 3 * 2 ) / 5
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6 / 5
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>>> for i in exp.simplify().explain():
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... print(i)
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2 \\times \\frac{ 3 }{ 5 }
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\\frac{ 3 }{ 5 } \\times 2
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\\frac{ 3 \\times 2 }{ 5 }
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\\frac{ 6 }{ 5 }
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# TODO: essayer de ne pas afficher ce changement de position. |lun. avril 6 17:29:56 CEST 2015
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"""
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class TmpRenderEnv(object):
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def __enter__(self):
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self.old_render = Renderable.get_render()
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Renderable.set_render(render)
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def __exit__(self, type, value, traceback):
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Renderable.set_render(self.old_render)
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return TmpRenderEnv()
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def __init__(self, pstf_tokens):
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"""Initiate the renderable objet
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:param pstf_tokens: the postfix list of tokens
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"""
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self.postfix_tokens = pstf_tokens
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def __repr__(self):
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return "< {cls} {pstf_tokens}>".format(
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cls = str(self.__class__).split('.')[-1][:-2],
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pstf_tokens = str(self.postfix_tokens)
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)
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def __eq__(self, other):
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""" Two Renderable objects are the same if they have same postfix_tokens """
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try:
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return self.postfix_tokens == other.postfix_tokens
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except AttributeError:
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return False
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def __txt__(self):
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try:
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return txt(self.postfix_tokens)
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except AttributeError:
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return self
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def __tex__(self):
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try:
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return tex(self.postfix_tokens)
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except AttributeError:
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return self
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if __name__ == '__main__':
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from .operator import op
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from itertools import permutations
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108
pymath/calculus/renderable.py
Normal file
108
pymath/calculus/renderable.py
Normal file
@ -0,0 +1,108 @@
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#!/usr/bin/env python
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# encoding: utf-8
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from .render import tex, txt
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__all__ = ['Renderable']
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class Renderable(object):
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"""
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A Renderable object is an object which can work with Render class. It means that it has to have attribute postfix_tokens.
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"""
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STR_RENDER = tex
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DEFAULT_RENDER = tex
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@classmethod
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def set_render(cls, render):
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cls.STR_RENDER = render
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@classmethod
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def get_render(cls):
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return cls.STR_RENDER
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@classmethod
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def set_default_render(cls):
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cls.set_render(cls.DEFAULT_RENDER)
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@classmethod
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def tmp_render(cls, render=tex):
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""" Create a container in which Expression render is temporary modify
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The default temporary render is Expression in order to perform calculus inside numbers
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>>> from .expression import Expression
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>>> from .explicable import Explicable
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>>> exp = Expression("2*3/5")
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>>> print(exp)
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2 \\times \\frac{ 3 }{ 5 }
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>>> for i in exp.simplify().explain():
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... print(i)
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2 \\times \\frac{ 3 }{ 5 }
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\\frac{ 3 }{ 5 } \\times 2
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\\frac{ 3 \\times 2 }{ 5 }
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\\frac{ 6 }{ 5 }
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>>> with Explicable.tmp_render(txt):
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... for i in exp.simplify().explain():
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... print(i)
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2 * 3 / 5
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3 / 5 * 2
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( 3 * 2 ) / 5
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6 / 5
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>>> for i in exp.simplify().explain():
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... print(i)
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2 \\times \\frac{ 3 }{ 5 }
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\\frac{ 3 }{ 5 } \\times 2
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\\frac{ 3 \\times 2 }{ 5 }
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\\frac{ 6 }{ 5 }
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# TODO: essayer de ne pas afficher ce changement de position. |lun. avril 6 17:29:56 CEST 2015
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"""
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class TmpRenderEnv(object):
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def __enter__(self):
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self.old_render = Renderable.get_render()
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Renderable.set_render(render)
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def __exit__(self, type, value, traceback):
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Renderable.set_render(self.old_render)
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return TmpRenderEnv()
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def __init__(self, pstf_tokens):
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"""Initiate the renderable objet
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:param pstf_tokens: the postfix list of tokens
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"""
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self.postfix_tokens = pstf_tokens
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def __repr__(self):
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return "< {cls} {pstf_tokens}>".format(
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cls = str(self.__class__).split('.')[-1][:-2],
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pstf_tokens = str(self.postfix_tokens)
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)
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def __eq__(self, other):
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""" Two Renderable objects are the same if they have same postfix_tokens """
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try:
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return self.postfix_tokens == other.postfix_tokens
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except AttributeError:
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return False
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def __txt__(self):
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try:
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return txt(self.postfix_tokens)
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except AttributeError:
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return self
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def __tex__(self):
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try:
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return tex(self.postfix_tokens)
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except AttributeError:
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return self
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# -----------------------------
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# Reglages pour 'vim'
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# vim:set autoindent expandtab tabstop=4 shiftwidth=4:
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# cursor: 16 del
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