split token on colon

Reference: #4229
Signed-off-by: Alok Kumar <alokkumarjipura9973@gmail.com>

Author: alok1304

src/cluecode/copyrights.py

@@ -436,6 +436,16 @@ def get_tokens(numbered_lines, splitter=re.compile(r'[\t =;]+').split):
                 .rstrip(':')  # strip trailing colons
                 .strip()
             )
+            
+            # Split tokens like 'Author:Frankie.Chu' into 'Author' and 'Frankie.Chu'
+            if tok.startswith("Author:"):
+                parts = tok.split(":", 1)
+                for part in parts:
+                    part = part.strip()
+                    if part and part not in ':.':
+                        yield Token(value=part, start_line=start_line, pos=pos)
+                        pos += 1
+                continue  
 
             # the tokenizer allows a single colon or dot to be a token and we discard these
             if tok and tok not in ':.':