[PATCH] Make '@' not valid in a ref name.

[Shawn Pearce <spearce@spearce.org>]

Now that the sha1 expression syntax supports looking up a ref's
value at a prior point in time through the '@' operator the '@'
operator should not be permitted in a ref name.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>

---

90d3212d5351d2f6c6ad33578c9f9df2e07af12e
 refs.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

90d3212d5351d2f6c6ad33578c9f9df2e07af12e
diff --git a/refs.c b/refs.c
index eeb1196..2530c99 100644
--- a/refs.c
+++ b/refs.c
@@ -213,14 +213,14 @@ int get_ref_sha1(const char *ref, unsign
  *
  * - any path component of it begins with ".", or
  * - it has double dots "..", or
- * - it has ASCII control character, "~", "^", ":" or SP, anywhere, or
+ * - it has ASCII control character, "@", "~", "^", ":" or SP,
  * - it ends with a "/".
  */
 
 static inline int bad_ref_char(int ch)
 {
 	return (((unsigned) ch) <= ' ' ||
-		ch == '~' || ch == '^' || ch == ':' ||
+		ch == '@' || ch == '~' || ch == '^' || ch == ':' ||
 		/* 2.13 Pattern Matching Notation */
 		ch == '?' || ch == '*' || ch == '[');
 }
-- 
1.3.3.gfad60