From 595be7aef06489fb9e7545232cdd5a7d5e4061aa Mon Sep 17 00:00:00 2001
From: Wheerd <admin@wheerd.de>
Date: Mon, 21 Nov 2016 19:11:04 +0100
Subject: [PATCH] Fixed the regular expression for xref to only match roles
 that are valid. This caused errors when having multiple successive xrefs
 without whitespace between them.

---
 sphinx/ext/napoleon/docstring.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sphinx/ext/napoleon/docstring.py b/sphinx/ext/napoleon/docstring.py
index 7df6e83ab..6fee87b34 100644
--- a/sphinx/ext/napoleon/docstring.py
+++ b/sphinx/ext/napoleon/docstring.py
@@ -33,7 +33,7 @@ _google_section_regex = re.compile(r'^(\s|\w)+:\s*$')
 _google_typed_arg_regex = re.compile(r'\s*(.+?)\s*\(\s*(.*[^\s]+)\s*\)')
 _numpy_section_regex = re.compile(r'^[=\-`:\'"~^_*+#<>]{2,}\s*$')
 _single_colon_regex = re.compile(r'(?<!:):(?!:)')
-_xref_regex = re.compile(r'(:\w+:\S+:`.+?`|:\S+:`.+?`|`.+?`)')
+_xref_regex = re.compile(r'(:(?:[a-zA-Z0-9]+[\-_+:.])*[a-zA-Z0-9]+:`.+?`)')
 _bullet_list_regex = re.compile(r'^(\*|\+|\-)(\s+\S|\s*$)')
 _enumerated_list_regex = re.compile(
     r'^(?P<paren>\()?'