Move each_line() out of class

lib/nntp/tiny/message.py

@@ -18,6 +18,24 @@ def decode(text: str):
     except:
         return str(decoded[0])
 
+def each_line(text: str):
+    start = 0
+    end   = len(text)
+
+    while True:
+        try:
+            index = text.index('\n', start, end)
+
+            yield text[start:index+1]
+
+            start = index + 1
+
+            if start == end:
+                break
+        except ValueError:
+            yield text[start:end]
+            break
+
 class MessageState(enum.Enum):
     EMPTY  = 0
     HEADER = 1
@@ -129,30 +147,16 @@ class Message(DatabaseTable):
     def is_first_line(self):
         return len(self.headers) == 1 and (self.body == '' or self.body is None)
 
-    @staticmethod
-    def each_line(text: str):
-        start = 0
-        end   = len(text)
 
-        while True:
-            try:
-                index = text.index('\n', start, end)
 
-                yield text[start:index+1]
 
-                start = index + 1
 
-                if start == end:
-                    break
-            except ValueError:
-                yield text[start:end]
-                break
 
     @staticmethod
     def parse(text: str):
         message = Message()
 
-        for line in Message.each_line(text):
-            message.add(line)
+        for line in each_line(text):
+            message._parse_line(line)
 
         return message