Strip Listserv macros and fix broken URLs in backfilled newsletters

- Add TICKET_URL pattern to remove_sdc_line for Listserv footer cleanup
- Add TICKET_URL footer marker to clean_newsletter.py
- Fix broken YouTube URL in 13.04
- Re-import all 6 newsletters with clean output

Author: pubino

_newsletters/13.01-welcome-back-2-2-24/index.md

@@ -465,5 +465,3 @@ Alain
 ***************************************************************************************************************
 
 This list is maintained by [Alain Kornhauser](mailto:alaink@princeton.edu) and hosted by the [Princeton University LISTSERV](http://lists.princeton.edu).
-
-[Unsubscribe](&*TICKET_URL(SMARTDRIVINGCARS,SIGNOFF);) | [Re-subscribe](&*TICKET_URL(SMARTDRIVINGCARS,SIGNUP);)

_newsletters/13.02-last-dispatcher-2-25-25/index.md

@@ -528,5 +528,3 @@ Alain
 ***************************************************************************************************************
 
 This list is maintained by [Alain Kornhauser](mailto:alaink@princeton.edu) and hosted by the [Princeton University LISTSERV](http://lists.princeton.edu).
-
-[Unsubscribe](&*TICKET_URL(SMARTDRIVINGCARS,SIGNOFF);) | [Re-subscribe](&*TICKET_URL(SMARTDRIVINGCARS,SIGNUP);)

_newsletters/13.03-may-2025-5-04-25/index.md

@@ -527,5 +527,3 @@ F.
 ***************************************************************************************************************
 
 This list is maintained by [Alain Kornhauser](mailto:alaink@princeton.edu) and hosted by the [Princeton University LISTSERV](http://lists.princeton.edu).
-
-[Unsubscribe](&*TICKET_URL(SMARTDRIVINGCARS,SIGNOFF);) | [Re-subscribe](&*TICKET_URL(SMARTDRIVINGCARS,SIGNUP);)

_newsletters/13.04-birthdaypresent-5-29-25/index.md

@@ -251,8 +251,7 @@ F.
                             informative to watch Rob report it live.
                              Alain
 
-[](https://www.youtube.com/playlist?list=PLFwuZ9jMeu5uwfTZP00zHjP7eSpG34Hsm)[SmartDrivingCars ZoomCasts](https!
- ://www.youtube.com/playlist?list=PLFwuZ9jMeu5uwfTZP00zHjP7eSpG34Hsm)
+[SmartDrivingCars ZoomCasts](https://www.youtube.com/playlist?list=PLFwuZ9jMeu5uwfTZP00zHjP7eSpG34Hsm)
 
  [Farmers fuming over California's
               ban on driverless tractors, other robots](https://www.nbcbayarea.com/news/local/autonomous-farming-agriculture-equipment-california/3878319/)
@@ -737,5 +736,3 @@ Alain
 ***************************************************************************************************************
 
 This list is maintained by [Alain Kornhauser](mailto:alaink@princeton.edu) and hosted by the [Princeton University LISTSERV](http://lists.princeton.edu).
-
-[Unsubscribe](&*TICKET_URL(SMARTDRIVINGCARS,SIGNOFF);) | [Re-subscribe](&*TICKET_URL(SMARTDRIVINGCARS,SIGNUP);)

_newsletters/13.05-d-day81-6-6-25/index.md

@@ -352,5 +352,3 @@ We had an excellent class this Fall.  This is a compilation of their investigat
 ***************************************************************************************************************
 
 This list is maintained by [Alain Kornhauser](mailto:alaink@princeton.edu) and hosted by the [Princeton University LISTSERV](http://lists.princeton.edu).
-
-[Unsubscribe](&*TICKET_URL(SMARTDRIVINGCARS,SIGNOFF);) | [Re-subscribe](&*TICKET_URL(SMARTDRIVINGCARS,SIGNUP);)

_newsletters/13.06-ID.Buzz-6.19.25/index.md

@@ -1,9 +1,9 @@
 ---
 layout: newsletter
-title: "2026-03-09"
-date: 2026-03-09
+title: "2025-06-21"
+date: 2025-06-21
 permalink: /13.06-ID.Buzz-6.19.25/
-display_name: "13.06   ID.Buzz"
+display_name: "13.06 - Id.Buzz"
 ---
 
 June 19, 2025
@@ -255,5 +255,3 @@ Hmmmm…
 ***************************************************************************************************************
 
 This list is maintained by [Alain Kornhauser](mailto:alaink@princeton.edu) and hosted by the [Princeton University LISTSERV](http://lists.princeton.edu).
-
-[Unsubscribe](&*TICKET_URL(SMARTDRIVINGCARS,SIGNOFF);) | [Re-subscribe](&*TICKET_URL(SMARTDRIVINGCARS,SIGNUP);)

scripts/clean_newsletter.py

@@ -86,7 +86,8 @@ def clean_newsletter_html(input_html: str) -> str:
     footer_markers = [
         re.compile(r'^\*{5,}$'),
         re.compile(r'^\s*This list is maintained by', re.IGNORECASE),
-        re.compile(r'^\s*To unsubscribe from this list', re.IGNORECASE)
+        re.compile(r'^\s*To unsubscribe from this list', re.IGNORECASE),
+        re.compile(r'TICKET_URL\(', re.IGNORECASE),
     ]
     elements_to_remove = []
     footer_found = False

scripts/import_newsletter.py

@@ -157,6 +157,9 @@ def remove_sdc_line(text):
         # Remove any line that links to smartdrivingcar.com (markdown or HTML)
         if re.search(r'(\[.*?\]\(https?://smartdrivingcar\.com.*?\))|(<a[^>]*href=["\']https?://smartdrivingcar\.com.*?>.*?</a>)|smartdrivingcar\.com', line, re.IGNORECASE):
             continue
+        # Remove Listserv macro lines (unsubscribe/subscribe ticket URLs)
+        if re.search(r'TICKET_URL\(', line):
+            continue
         new_lines.append(line)
     return '\n'.join(new_lines)