From 0e65981564564bbb2ebfeea4289a4d56c85e9888 Mon Sep 17 00:00:00 2001
From: matze-dd <matze-dd@github.com>
Date: Tue, 8 Dec 2020 16:19:55 +0100
Subject: [PATCH] Closes #147, closes #149

---
 HISTORY.md               |  2 ++
 tests/test_multi_lang.py | 22 ++++++++++++++++++++++
 yalafi/packages/babel.py | 18 +++++++++++++-----
 3 files changed, 37 insertions(+), 5 deletions(-)

diff --git a/HISTORY.md b/HISTORY.md
index 6922110e..7780112b 100644
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -5,6 +5,8 @@ Work in progress
     (PR [#133](../../pull/133))
   - new package xspace: macro \\xspace; **thanks to @blipp**
     (PR [#134](../../pull/134), issue [#140](../../issues/140))
+  - package babel: fixed a problem with parsing of package options
+    (issue [#147](../../issues/147))
 - yalafi.shell
   - added option --no-specials (issue [#131](../../issues/131))
   - fixed problem with --add-modules (issue [#144](../../issues/144))
diff --git a/tests/test_multi_lang.py b/tests/test_multi_lang.py
index 0cd3dcef..017c812b 100644
--- a/tests/test_multi_lang.py
+++ b/tests/test_multi_lang.py
@@ -327,3 +327,25 @@ def test_13():
     plain = get_ml_txt(latex_13, lang='en-GB')
     assert plain == plain_13
 
+#   issues 147, 149
+#
+latex_14 = r"""
+"a
+\usepackage[english,ngerman,math=normal]{babel}
+"a
+"""
+plain_14 = {
+'de-DE': [
+"""ä
+"""
+],
+'en-GB': [
+"""
+"a
+"""
+]
+}
+def test_14():
+    plain = get_ml_txt(latex_14, lang='en-GB')
+    assert plain == plain_14
+
diff --git a/yalafi/packages/babel.py b/yalafi/packages/babel.py
index 540b54ca..70dc29d2 100644
--- a/yalafi/packages/babel.py
+++ b/yalafi/packages/babel.py
@@ -21,6 +21,7 @@
 #   'ca-ES-valencia'
     'danish': 'da-DK',
     'german': 'de-DE',
+    'ngerman': 'de-DE',
     'german-at': 'de-AT',
     'german-ch': 'de-CH',
     'greek': 'el-GR',
@@ -87,11 +88,7 @@ def init_module(parser, options):
 
     ]
 
-    inject_tokens = []
-    if options:
-        # set current language to the last in option list
-        inject_tokens = [LanguageToken(0, lang=translate_lang(options[-1][0]),
-                                                hard=True, brk=True)]
+    inject_tokens = get_language_token(options)
 
     return InitModule(macros_latex=macros_latex, macros_python=macros_python,
                         environments=environments, inject_tokens=inject_tokens)
@@ -124,3 +121,14 @@ def h_end_otherlang(parser, buf, mac, args, delim, pos):
 def h_end_otherlang_star(parser, buf, mac, args, delim, pos):
     return [LanguageToken(pos, back=True)]
 
+#   return a list
+#   - with LanguageToken corresponding to given option
+#   - or empty, if no language option found
+#
+def get_language_token(options):
+    for opt in reversed(options):
+        if opt[1] is None and opt[0] in language_map:
+            return [LanguageToken(0, lang=translate_lang(opt[0]),
+                                                hard=True, brk=True)]
+    return []
+