def get_solution(self):
"""Uses a parser build out of the ply module, instead of
exec, which allows me to return as fractions, instead
of performing integer division"""
return set([parser.parse(self.problem)])
def to_html(self):
"""Render the problem in a form that is convertable to
TeX by MathJax. Note that inline MathJax equations are
bracketed by \(...\). Prepends a prompt"""
prompt = "Reduce"
fractions = re.findall('\d+/\d+',self.problem)
h = '\('+self.problem+'\)'
for f in fractions:
a,b = f.split('/')
text = r'\\frac{%s}{%s}'%(a,b)
h = re.sub('\d+/\d+',text,h,count = 1)
return [prompt,h]
def __str__(self):
return self.problem
if __name__ == "__main__":
assert parser.parse("32 + 4") == 36
a = Arithematic()
s = a.solution.pop()
print str(a)+' = '+str(s)
assert parser.parse(str(a)) == s
print a,
print a.to_html()[1]
print a.new_to_html()
#ans = raw_input("> ")
#print a.validate(ans)
