fix(cluecode): narrow Frankie.Chu author grammar to NAME-DOT

The previous AUTHOR rule {AUTH PN|NNP|CAPS|NN}+ was over-broad and
matched false authors (e.g. "would like", single names, CVS keywords).

Tag mixed-case dotted personal names as NAME-DOT (excluding common
domain/org suffixes) and match only AUTH + NAME-DOT for Author:Frankie.Chu.


Signed-off-by: Alex Chen <andystechkin@gmail.com>

Author: nickchets

src/cluecode/copyrights.py

@@ -2231,6 +2231,11 @@ def build_detection_from_node(
     # proper noun with some separator and trailing comma
     (r'^[A-Z]+\.[A-Z][a-z]+,?$', 'NNP'),
 
+    # Mixed-case dotted personal name token, e.g. Frankie.Chu (C++ Author:Name tags).
+    # Keep this after exact NNP exceptions (Xiph.Org) and exclude common domain/org suffixes
+    # so tokens like Xiph.Org,/Iotacoffee.Com still fall through to URL/NNP patterns.
+    (r'^[A-Z][a-z0-9]+(?:\.(?!Org,?$|Com,?$|Net,?$|Edu,?$|Gov,?$|Inc,?$|Ltd,?$|Co,?$)[A-Z][a-z0-9]+)+,?$', 'NAME-DOT'),
+
     # proper noun with apostrophe ': D'Orleans, D'Arcy, T'so, Ts'o
     (r"^[A-Z][a-z]?'[A-Z]?[a-z]+[,\.]?$", 'NNP'),
 
@@ -3479,8 +3484,8 @@ def build_detection_from_node(
     # author (Panagiotis Tsirigotis)
     AUTHOR: {<AUTH>  <NNP><NNP>+} #author Foo Bar
 
-    # Author:Frankie.Chu / Author: Frankie.Chu (single dotted/simple name token)
-    AUTHOR: {<AUTH> <PN|NNP|CAPS|NN>+} #author Frankie.Chu
+    # Author:Frankie.Chu / Author: Frankie.Chu (single mixed-case dotted name token)
+    AUTHOR: {<AUTH> <NAME-DOT>} #author Frankie.Chu
 
     # Author: Tim (xtimor@gmail.com)
     AUTHOR: {<AUTH>  <NNP>+ <EMAIL>+} #Author Foo joe@email.com