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create a list of operator

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lafrite 2014-11-11 20:35:30 +01:00
parent 4920bbd27d
commit 693c982cbe
3 changed files with 17 additions and 20 deletions
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3
pymath/operator.py
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@ -183,6 +183,9 @@ class Operator(str):
return flatten_list([op]) return flatten_list([op])
class op(object):
""" List of admited operations """
# TODO: On pourrait peut être le faire plus proprement avec des décorateurs? |mar. nov. 11 20:24:54 CET 2014
add = Operator("+") add = Operator("+")
sub = Operator("-") sub = Operator("-")
mul = Operator("*") mul = Operator("*")

10
pymath/render.py
View File

@ -65,17 +65,13 @@ def p2i_render(token):
try: try:
return getattr(token, '__p2i__')(*args) return getattr(token, '__p2i__')(*args)
except AttributeError: except AttributeError:
return list(token) return token
return render return render
p2i = Render(p2i_render) p2i = Render(p2i_render)
if __name__ == '__main__': if __name__ == '__main__':
from .operator import Operator from .operator import op
mul = Operator("*", 2) exp = [ 2, 3, op.add, 4, op.mul]
add = Operator("+", 2)
sub1 = Operator("-", 1)
div = Operator("/", 1)
exp = [ 2, 3, add, 4, mul]
print(exp) print(exp)
print("txt(exp) :" + str(txt(exp))) print("txt(exp) :" + str(txt(exp)))
print("tex(exp) :" + str(tex(exp))) print("tex(exp) :" + str(tex(exp)))

10
pymath/str2tokens.py
View File

@ -161,12 +161,10 @@ if __name__ == '__main__':
# #
#print(in2post_fix(in_tokens)) #print(in2post_fix(in_tokens))
#a, s, m, d, p = Operator("+"), Operator("-"), Operator("*"), Operator("/"), Operator("^") from .operator import op
#s1 = Operator("-", 1) print(in2post_fix([op.par, 2, op.add, 5, op.sub, 1, ')', op.div, op.par, 3, op.mul, 4, ')']))
#par = Operator("(") print(in2post_fix([op.sub1, op.par, op.sub1, 2, ')']))
#print(in2post_fix([par, 2, a, 5, s, 1, ')', d, par, 3, m, 4, ')'])) print(in2post_fix([op.sub1, op.par, op.sub1, 2, op.add, 3, op.mul, 4, ')']))
#print(in2post_fix([s1, par, s1, 2, ')']))
#print(in2post_fix([s1, par, s1, 2, a, 3, m, 4, ')']))
import doctest import doctest
doctest.testmod() doctest.testmod()