# HG changeset patch
# User Andrew Shadura <andrew@shadura.me>
# Date 2017-04-04 16:54:35
# Node ID f9b67a894e21d9f6241573e5b68813abce723cf9
# Parent  42bbccdec0a01e1a8b96b95880fb76b3da5135f6

pygmentsutils: don't fail if an extension doesn't speficy EXTRA_LEXERS

diff --git a/kallithea/lib/pygmentsutils.py b/kallithea/lib/pygmentsutils.py
--- a/kallithea/lib/pygmentsutils.py
+++ b/kallithea/lib/pygmentsutils.py
@@ -86,7 +86,7 @@ def get_custom_lexer(extension):
     if there's no custom lexer defined
     """
     import kallithea
-    #check if we didn't define this extension as other lexer
-    if kallithea.EXTENSIONS and extension in kallithea.EXTENSIONS.EXTRA_LEXERS:
-        _lexer_name = kallithea.EXTENSIONS.EXTRA_LEXERS[extension]
-        return lexers.get_lexer_by_name(_lexer_name)
+    lexer_name = getattr(kallithea.EXTENSIONS, 'EXTRA_LEXERS', {}).get(extension)
+    if lexer_name is None:
+        return None
+    return lexers.get_lexer_by_name(lexer_name)