Metelskiy Ivan

.gitignore

@@ -102,3 +102,6 @@ venv.bak/
 
 # mypy
 .mypy_cache/
+
+#pycharm
+.idea/

final_task/constants.py

@@ -0,0 +1,65 @@
+"""
+
+module which contains base constant values which uses for calculating expressions
+
+"""
+
+import re
+import operator
+
+operators_methods_dict = {
+    '+': operator.add,
+    '-': operator.sub,
+    '*': operator.mul,
+    '/': operator.truediv,
+    '%': operator.mod,
+    '^': operator.pow,
+    '//': operator.floordiv,
+    '==': operator.eq,
+    '<=': operator.le,
+    '>=': operator.ge,
+    '>': operator.gt,
+    '<': operator.lt,
+    '!=': operator.ne
+}
+
+operations_priority_dict = {
+    '(':  0,
+    '<':  1,
+    '==': 1,
+    '!=': 1,
+    '>=': 1,
+    '>':  1,
+    '+':  2,
+    '-':  2,
+    '*':  3,
+    '/':  3,
+    '%':  3,
+    '//': 3,
+    '^':  4
+}
+
+# regular expression which divides string by funcs operators constants and numeric values
+RE_MAIN_PARSE_ARG = re.compile(r'\d+[.]\d+|\d+|[+,\-*^%]|[/=!<>]+|\w+|[()]')
+RE_NEGATIVE_VALUES = re.compile(r'[^\w)][\-]\d+[.]\d+|[^\w)][\-]\d+')
+RE_NEGATIVE_VALUES_ON_STR_BEG = re.compile(r'^-\d+[.]\d+|^-\w+')
+RE_POSITIVE_VALUES = re.compile(r'[^\w)][+]\d+[.]\d+|[^\w)][+]\d+')
+RE_POSITIVE_VALUES_ON_STR_BEG = re.compile(r'^[+]\d+[.]\d+|^[+]\w+')
+RE_INTS = re.compile(r'\d+')
+RE_FLOATS = re.compile(r'\d+[.]\d+')
+RE_FUNCTIONS = re.compile(r'[a-zA-Z]+[0-9]+|[a-zA-Z]+')
+RE_OPERATIONS = re.compile(r'[(<=!>+\-*/%^]+')
+RE_NEGATIVE_FUNCS = re.compile(r'[^\w)]-[a-zA-Z]+[0-9]+|[^\w)]-[a-zA-Z]+')
+RE_POSITIVE_FUNCS = re.compile(r'[^\w)]-[a-zA-Z]+[0-9]+|[^\w)]-[a-zA-Z]+')
+RE_INCOMPLETE_FLOAT = re.compile(r'[^\d][.]\d')
+RE_NEGATIVE_CONSTANTS = re.compile(r'[^\w)][\-][a-zA-Z]+[0-9]+|[^\w)][\-][a-zA-Z]+')
+
+# list which extends by user import modules, and is used for import them
+imports = ['math']
+
+builtin_funcs_dict = {
+    'abs': abs,
+    'round': round,
+    'True': True,
+    'False': False
+}