From c62549a2e77b14f73b13aa515b6884a478b8328a Mon Sep 17 00:00:00 2001
From: Oliverpool <oliverpool@hotmail.fr>
Date: Wed, 21 Oct 2015 13:57:47 +0200
Subject: [PATCH] Don't crash on unknonwn babel languages

---
 patacrep/songs/latex/__init__.py | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/patacrep/songs/latex/__init__.py b/patacrep/songs/latex/__init__.py
index 620475a2..980fece2 100644
--- a/patacrep/songs/latex/__init__.py
+++ b/patacrep/songs/latex/__init__.py
@@ -44,8 +44,11 @@ class LatexSong(Song):
             if language == babel_language:
                 self.lang = lang
                 return
-        # TODO: add as custom language
-        LOGGER.error('Unsupported language:' + language)
+
+        # Add a custom language to the babel dictionary (language is not officially supported)
+        custom_lang = '_' + language
+        BABEL_LANGUAGES[custom_lang] = language
+        self.lang = custom_lang
 
 SONG_PARSERS = {
     'is': LatexSong,