First parser implementation

comsdk/parser.py

+import re
+from typing import NamedTuple
+from enum import Enum, auto
+
+# Ключевые слова, описывающие граф
+scope = [
+    "__BEGIN__",
+    "__END__"
+]
+
+class Stmt():
+    __slots__=(
+        'name',
+        'module',
+        'entry_func',
+        'predicate',
+        'selector',
+        'function',
+        'morphism',
+        'parallelism'
+    )
+    def __init__(self, name):
+        for slot in self.__slots__:
+            setattr(self, slot, None)
+        self.name = name
+    
+    def __str__(self):
+        stri = ""
+        for s in self.__slots__:
+            stri += s+": {}, ".format(getattr(self, s))
+        return stri
+
+# ent = [{"name":{"module":"val" , "entr_func":"val"...}}]
+
+dotfile = open("./testgr.adot", "r").read()
+graphcheck = re.match(r"\A(digraph)\s+\w*\n{(.*\s)*}\Z", dotfile)
+if graphcheck is None:
+    print("Incorrect graph, check syntax!")
+    exit()
+
+
+# Все что до __BEGIN__ считается объявлением
+beg = re.search((scope[0]), dotfile).start()
+
+stmts = []
+
+rawstmts = re.findall(r"\w+\s\[.*\]", dotfile[:beg])
+for raw in rawstmts:
+    res = raw.split(r" ", 1)
+    st = Stmt(res[0])
+    rs =res[1][1:-1].split(r", ")
+    for r in rs:
+        r=r.split(r"=", 1)
+        for s in st.__slots__:
+            if s == r[0]:
+                setattr(st, s, r[1])
+    print(st)
+    stmts.append(st)
+