From 9d08dc994d51298e2d8e75d8ed4ee477312ec53a Mon Sep 17 00:00:00 2001
From: Runxi Yu
Date: Sat, 7 Mar 2026 15:08:14 +0800
Subject: ref/refname: Add refname validation

---
 ref/refname/disposition.go | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100644 ref/refname/disposition.go

(limited to 'ref/refname/disposition.go')

diff --git a/ref/refname/disposition.go b/ref/refname/disposition.go
new file mode 100644
index 00000000..5153e633
--- /dev/null
+++ b/ref/refname/disposition.go
@@ -0,0 +1,20 @@
+package refname
+
+func refnameDisposition(ch byte) byte {
+	switch {
+	case ch == '/':
+		return 1
+	case ch == '.':
+		return 2
+	case ch == '{':
+		return 3
+	case ch == '*':
+		return 5
+	case ch < 0x20 || ch == 0x7f:
+		return 4
+	case ch == ':' || ch == '?' || ch == '[' || ch == '\\' || ch == '^' || ch == '~' || ch == ' ' || ch == '\t':
+		return 4
+	default:
+		return 0
+	}
+}
-- 
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