From 488e3dae349c7173d1d8b9c37ec791105b6c3835 Mon Sep 17 00:00:00 2001
From: acn <acn@annachristina.eu>
Date: Thu, 9 Jun 2016 13:24:31 +0200
Subject: [PATCH] small fixes on the "check if next page exists" function

---
 rtxHelpers.py | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/rtxHelpers.py b/rtxHelpers.py
index 89b5453..a54e3c7 100644
--- a/rtxHelpers.py
+++ b/rtxHelpers.py
@@ -100,10 +100,12 @@ def process_command(cmd):
         else:
             # check if the next page exists, e.g. 2000a => 2000b
             curid = glob.curpage.get_page_id()
-            if curid[-1:].isalpha():
+            if curid == -1:
+                send_error("Keine n"+cept['UMLAUT']+"achste Seite gefunden.")
+            if str(curid[-1:]).isalpha():
                 # aus 2000a 2000b machen:
                 nextid = curid[:-1] + chr(ord(curid[-1:])+1)
-                check_and_send_page(nextid, "Keine n"+str(cept['UMLAUT'])+"achste Seite gefunden.")
+                check_and_send_page(nextid, "Keine n"+cept['UMLAUT']+"achste Seite gefunden.")
 
     # special commands:
     if cmd == "!1" + cept.TER: