mirror of
https://github.com/titanscouting/tra-analysis.git
synced 2024-11-13 22:56:18 +00:00
51 lines
2.0 KiB
Python
51 lines
2.0 KiB
Python
|
import re
|
||
|
|
from decimal import Decimal
|
||
|
|
from functools import reduce
|
||
|
|
|
||
|
|
class RegexInplaceParser(object):
|
||
|
|
|
||
|
|
def __init__(self, string):
|
||
|
|
|
||
|
|
self.string = string
|
||
|
|
|
||
|
|
def add(self, string):
|
||
|
|
while(len(re.findall("[+]{1}[-]?", string)) != 0):
|
||
|
|
string = re.sub("[-]?\d+[.]?\d*[+]{1}[-]?\d+[.]?\d*", str("%f" % reduce((lambda x, y: x + y), [Decimal(i) for i in re.split("[+]{1}", re.search("[-]?\d+[.]?\d*[+]{1}[-]?\d+[.]?\d*", string).group())])), string, 1)
|
||
|
|
return string
|
||
|
|
|
||
|
|
def sub(self, string):
|
||
|
|
while(len(re.findall("\d+[.]?\d*[-]{1,2}\d+[.]?\d*", string)) != 0):
|
||
|
|
g = re.search("\d+[.]?\d*[-]{1,2}\d+[.]?\d*", string).group()
|
||
|
|
if(re.search("[-]{1,2}", g).group() == "-"):
|
||
|
|
r = re.sub("[-]{1}", "+-", g, 1)
|
||
|
|
string = re.sub(g, r, string, 1)
|
||
|
|
elif(re.search("[-]{1,2}", g).group() == "--"):
|
||
|
|
r = re.sub("[-]{2}", "+", g, 1)
|
||
|
|
string = re.sub(g, r, string, 1)
|
||
|
|
else:
|
||
|
|
pass
|
||
|
|
return string
|
||
|
|
|
||
|
|
def mul(self, string):
|
||
|
|
while(len(re.findall("[*]{1}[-]?", string)) != 0):
|
||
|
|
string = re.sub("[-]?\d+[.]?\d*[*]{1}[-]?\d+[.]?\d*", str("%f" % reduce((lambda x, y: x * y), [Decimal(i) for i in re.split("[*]{1}", re.search("[-]?\d+[.]?\d*[*]{1}[-]?\d+[.]?\d*", string).group())])), string, 1)
|
||
|
|
return string
|
||
|
|
|
||
|
|
def div(self, string):
|
||
|
|
while(len(re.findall("[/]{1}[-]?", string)) != 0):
|
||
|
|
string = re.sub("[-]?\d+[.]?\d*[/]{1}[-]?\d+[.]?\d*", str("%f" % reduce((lambda x, y: x / y), [Decimal(i) for i in re.split("[/]{1}", re.search("[-]?\d+[.]?\d*[/]{1}[-]?\d+[.]?\d*", string).group())])), string, 1)
|
||
|
|
return string
|
||
|
|
|
||
|
|
def exp(self, string):
|
||
|
|
while(len(re.findall("[\^]{1}[-]?", string)) != 0):
|
||
|
|
string = re.sub("[-]?\d+[.]?\d*[\^]{1}[-]?\d+[.]?\d*", str("%f" % reduce((lambda x, y: x ** y), [Decimal(i) for i in re.split("[\^]{1}", re.search("[-]?\d+[.]?\d*[\^]{1}[-]?\d+[.]?\d*", string).group())])), string, 1)
|
||
|
|
return string
|
||
|
|
|
||
|
|
def evaluate(self):
|
||
|
|
string = self.string
|
||
|
|
string = self.exp(string)
|
||
|
|
string = self.div(string)
|
||
|
|
string = self.mul(string)
|
||
|
|
string = self.sub(string)
|
||
|
|
string = self.add(string)
|
||
|
|
return string
|