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Expression have 2 new method to be pritned

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lafrite 2014-01-17 12:48:48 +01:00
parent db44c787ed
commit b6930c144b
1 changed files with 13 additions and 1 deletions
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14
expression.py
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@ -26,13 +26,25 @@ class Expression(object):
self.feed_fix() # Determine le fix et range la liste dans self.[fix]_tokens self.feed_fix() # Determine le fix et range la liste dans self.[fix]_tokens
def __str__(self):
"""Overload str as it aim to be use in console the render is txt_render"""
return txt_render(self.postfix_tokens)
def render(self, render = lambda x:str(x)):
""" Same as __str__ but accept render as argument
@param render: function which render the list of token (postfix form) to string
"""
# TODO: I don't like the name of this method |ven. janv. 17 12:48:14 CET 2014
return render(self.postfix_tokens)
## --------------------- ## ---------------------
## Mechanism functions ## Mechanism functions
def simplify(self, render = lambda x:str(x)): def simplify(self, render = lambda x:str(x)):
""" Generator which return steps for computing the expression """ Generator which return steps for computing the expression
@param render: function which render the list of token (postfix form now) @param render: function which render the list of token (postfix form now) to string
""" """
if not self.can_go_further(): if not self.can_go_further():