feat: подготовка к разбору сделана

src/rulesparser.py

@@ -5,22 +5,46 @@ class RulesParser:
     TRANSFORM = r'->'
     B_TRANSFORM = r'->\|'
     NEWLINE = '\n'
-    IGNORE = r'\s'
+    IGNORE = r'\s+'
     COMMENTS = r'//.+$'
     EMPTY = r'\$'
 
-    def parse(self, file: str) -> OrderedDict[str, str]:
+    def parse(self, file: str):
         """
         Parsing file according to syntax, specified
         in class variables. Hardcoded for now (and forever)
         """
         with open(file, 'r') as f:
             text = f.read()
+        lines = self._get_lines(text)
+        self._parse_rule(lines[0])
+
+    def _parse_rule(self, line: str) -> tuple[str, str]:
+        """
+        tries to parse rule according to set grammar
+        """
+        print(re.split(self.IGNORE, line))
+
+    def _get_lines(self, src: str) -> list[str]:
+        """
+        Get cleaned lines only with rules to parse
+        """
+        text = self._remove_comments(src)
+        text = self._strip_lines(text)
+        lines = list(filter(lambda x: x != '', text.split(self.NEWLINE)))
+        return lines
 
     def _remove_comments(self, src: str) -> str:
         """
         removes comments from end of lines and returns
         cleaned text
         """
-        return re.sub(self.COMMENTS, "", src)
+        return re.sub(self.COMMENTS, '', src, flags=re.M)
 
+    def _strip_lines(self, src: str) -> str:
+        """
+        Strips whitespaces at the end of lines
+        """
+        result = re.sub(r' +$', '', src, flags=re.M)
+        # result = re.sub(r"\n+", r'\n', result)
+        return result