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add random_str to create random string

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This commit is contained in:
Lafrite 2014-12-27 16:32:44 +01:00
parent f67e0541b8
commit 694cda47ca
1 changed files with 10 additions and 10 deletions
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20
pymath/random_expression.py
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@ -8,6 +8,11 @@ from .generic import flatten_list
from .arithmetic import gcd from .arithmetic import gcd
def random_str(form, conditions = [], val_min = -10, val_max = 10):
""" Create a random string using RdExpression class """
random_str_generator = RdExpression(form, conditions)
return random_str_generator(val_min, val_max)
class RdExpression(object): class RdExpression(object):
""" """
@ -132,22 +137,17 @@ def desc_rdExp(rdExp):
if __name__ == '__main__': if __name__ == '__main__':
form = "{a}*-14 / (2*{b}) / -23 / 4" form = "({a};{b})"
cond = ["{a} + {b} in [1, 2, 3, 4, 5]", "{a} not in [1]", "{b} not in [1]"] cond = []
rdExp1 = RdExpression(form, cond) print(random_str(form, cond))
desc_rdExp(rdExp1)
rdExp2 = RdExpression(form)
desc_rdExp(rdExp2)
form = "{a+a*10}*4 + {a} + 2*{b}" form = "{a+a*10}*4 + {a} + 2*{b}"
cond = ["{a} + {b} in [1, 2, 3, 4, 5]", "abs({a}) not in [1]", "{b} not in [1]", "gcd({a},{b}) == 1"] cond = ["{a} + {b} in [1, 2, 3, 4, 5]", "abs({a}) not in [1]", "{b} not in [1]", "gcd({a},{b}) == 1"]
rdExp3 = RdExpression(form, cond) print(random_str(form, cond))
desc_rdExp(rdExp3)
form = "{a+a*10}*4 + {a} + 2*{b}" form = "{a+a*10}*4 + {a} + 2*{b}"
cond = ["{a-b} + {b} in list(range(20))", "abs({a}) not in [1]", "{b} not in [1]", "gcd({a},{b}) == 1"] cond = ["{a-b} + {b} in list(range(20))", "abs({a}) not in [1]", "{b} not in [1]", "gcd({a},{b}) == 1"]
rdExp3 = RdExpression(form, cond) print(random_str(form, cond))
desc_rdExp(rdExp3)
import doctest import doctest
doctest.testmod() doctest.testmod()