[PATCH] Add matchings for csharp

[Adam Petaccia <adam@tpetaccia.com>]

I'm not sure if this is the correct place to send patches, please direct 
me if I've addressed the wrong list.
---
 t/t4018-diff-funcname.sh |    2 +-
 userdiff.c               |   10 ++++++++++
 2 files changed, 11 insertions(+), 1 deletions(-)

diff --git a/t/t4018-diff-funcname.sh b/t/t4018-diff-funcname.sh
index 5b10e97..704dae8 100755
--- a/t/t4018-diff-funcname.sh
+++ b/t/t4018-diff-funcname.sh
@@ -32,7 +32,7 @@ EOF
 
 sed 's/beer\\/beer,\\/' < Beer.java > Beer-correct.java
 
-builtin_patterns="bibtex cpp html java objc pascal php python ruby tex"
+builtin_patterns="bibtex csharp cpp html java objc pascal php python ruby tex"
 for p in $builtin_patterns
 do
 	test_expect_success "builtin $p pattern compiles" '
diff --git a/userdiff.c b/userdiff.c
index 57529ae..d4151b2 100644
--- a/userdiff.c
+++ b/userdiff.c
@@ -79,6 +79,16 @@ PATTERNS("cpp",
 	 "|[-+0-9.e]+[fFlL]?|0[xXbB]?[0-9a-fA-F]+[lL]?"
 	 "|[-+*/<>%&^|=!]=|--|\\+\\+|<<=?|>>=?|&&|\\|\\||::|->"
 	 "|[^[:space:]]|[\x80-\xff]+"),
+PATTERNS("csharp",
+	 "!^[ \t]*(catch|do|for|if|instanceof|new|return|switch|throw|while)\n"
+	 "^([ \t]*(static|public|internal|private|protected|new|unsafe|readonly|volatile)[ \t]+(class|enum|interface|struct).*)$\n"
+	 "^([ \t]*(namespace)[ \t]+.*)$"
+	 ,
+	 /* -- */
+	 "[a-zA-Z_][a-zA-Z0-9_]*"
+	 "|[-+0-9.e]+[fFlL]?|0[xXbB]?[0-9a-fA-F]+[lL]?"
+	 "|[-+*/<>%&^|=!]=|--|\\+\\+|<<=?|>>=?|&&|\\|\\||::|->"
+	 "|[^[:space:]]|[\x80-\xff]+"),
 { "default", NULL, -1, { NULL, 0 } },
 };
 #undef PATTERNS
-- 
1.6.0.4