From 584974c292edbca8be0b6c2ccf8dc9dc1ba6e15a Mon Sep 17 00:00:00 2001
From: Richard Metzler <richard@launchco.com>
Date: Sat, 7 Dec 2013 01:20:50 +0100
Subject: FIX 873 Ruby 1.9 hash syntax, symbol with underscore as key not
 highlighted properly

Bugreport: https://bitbucket.org/birkenfeld/pygments-main/issue/873/ruby-19-hash-syntax-symbol-with-underscore
Example: https://gist.github.com/rmetzler/7833554
---
 pygments/lexers/agile.py          | 2 +-
 tests/examplefiles/hash_syntax.rb | 5 +++++
 2 files changed, 6 insertions(+), 1 deletion(-)
 create mode 100644 tests/examplefiles/hash_syntax.rb

diff --git a/pygments/lexers/agile.py b/pygments/lexers/agile.py
index 1f81365e..b5fc287c 100644
--- a/pygments/lexers/agile.py
+++ b/pygments/lexers/agile.py
@@ -532,7 +532,7 @@ class RubyLexer(ExtendedRegexLexer):
             (r":'(\\\\|\\'|[^'])*'", String.Symbol),
             (r"'(\\\\|\\'|[^'])*'", String.Single),
             (r':"', String.Symbol, 'simple-sym'),
-            (r'([a-zA-Z_][a-zA-Z0-9]*)(:)(?!:)',
+            (r'([a-zA-Z_][a-zA-Z0-9_]*)(:)(?!:)',
              bygroups(String.Symbol, Punctuation)),  # Since Ruby 1.9
             (r'"', String.Double, 'simple-string'),
             (r'(?<!\.)`', String.Backtick, 'simple-backtick'),
diff --git a/tests/examplefiles/hash_syntax.rb b/tests/examplefiles/hash_syntax.rb
new file mode 100644
index 00000000..35b27723
--- /dev/null
+++ b/tests/examplefiles/hash_syntax.rb
@@ -0,0 +1,5 @@
+{ :old_syntax => 'ok' }
+{ 'stings as key' => 'should be ok' }
+{ new_syntax: 'broken until now' }
+{ withoutunderscore: 'should be ok' }
+{ _underscoreinfront: 'might be ok, if I understand the pygments code correct' }
-- 
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