reorganise renders
This commit is contained in:
Benjamin Bertrand
@@ -131,12 +131,6 @@ class AbstractPolynom(Explicable):
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def __repr__(self):
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return "< " + str(self.__class__) + " " + str(self._coef) + ">"
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def __txt__(self):
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return txt(self.postfix_tokens)
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def __tex__(self):
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return tex(self.postfix_tokens)
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def coef_postfix(self, a, i):
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"""Return the postfix display of a coeficient
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@@ -1,77 +1,7 @@
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#!/usr/bin/env python
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# encoding: utf-8
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from .render import txt, tex
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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 __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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from .render import Renderable
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class Explicable(Renderable):
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@@ -85,6 +15,7 @@ class Explicable(Renderable):
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"""
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def __init__(self, *args, **kwargs):
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super(Explicable, self).__init__()
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self.steps = []
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def explain(self, noself=True):
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@@ -97,13 +28,15 @@ class Explicable(Renderable):
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# les étapes pour l'atteindre
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try:
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for s in self.steps:
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if hasattr(s, 'postfix_tokens'):
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try:
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new_s = self.STR_RENDER(s.postfix_tokens)
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else:
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except AttributeError:
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new_s = self.STR_RENDER(s)
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if not self.is_same_step(new_s, old_s):
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old_s = new_s
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yield new_s
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except AttributeError:
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pass
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@@ -127,6 +60,25 @@ class Explicable(Renderable):
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else:
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return False
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class Explicable_int(int, Explicable):
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isNumber = True
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def __init__(self, val):
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super(Explicable_int, self).__init__(val)
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self._val = val
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self.postfix_tokens = [self]
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self.steps = []
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def simplify(self):
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return Explicable_int(self._val)
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def __txt__(self):
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return str(self._val)
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def __tex__(self):
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return str(self._val)
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# -----------------------------
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# Reglages pour 'vim'
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@@ -7,26 +7,13 @@
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from .generic import Stack, flatten_list, expand_list, isNumber, isOperator, isNumerand
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from .str2tokens import str2tokens
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from .operator import op
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from .explicable import Explicable
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from .explicable import Explicable, Explicable_int
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from .random_expression import RdExpression
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__all__ = ['Expression']
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class Explicable_int(int, Explicable):
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isNumber = True
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def __init__(self, val):
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super(Explicable_int, self).__init__(val)
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self._val = val
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self.postfix_tokens = [self]
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self.steps = []
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def simplify(self):
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return Explicable_int(self._val)
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class Expression(Explicable):
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"""A calculus expression. Today it can andle only expression with numbers later it will be able to manipulate unknown"""
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@@ -113,22 +113,6 @@ class Fraction(Explicable):
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return "< Fraction {num} / {denom}>".format(
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num=self._num, denom=self._denom)
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def __txt__(self):
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old_render = Expression.get_render()
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Expression.set_render(txt)
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_txt = self.__str__()
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Expression.set_render(old_render)
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return _txt
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def __tex__(self):
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old_render = Expression.get_render()
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Expression.set_render(tex)
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_tex = self.__str__()
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Expression.set_render(old_render)
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return _tex
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def __float__(self):
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return self._num / self._denom
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@@ -56,7 +56,6 @@ def txt_render(token):
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txt = Render(txt_render)
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def tex_render(token):
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def render(*args):
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try:
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@@ -66,7 +65,6 @@ def tex_render(token):
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return render
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tex = Render(tex_render)
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def p2i_render(token):
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def render(*args):
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try:
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@@ -76,6 +74,87 @@ 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 __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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