s3tables: allow hyphens in namespace and table names

Relaxed regex validation in utils.go to support hyphens in S3 Tables
namespaces and table names, improving consistency with S3 bucket naming
and allowing derived names from services like S3 Storage Lens.

weed/s3api/s3tables/utils.go

@@ -13,7 +13,7 @@ import (
 
 var (
 	bucketARNPattern  = regexp.MustCompile(`^arn:aws:s3tables:[^:]*:[^:]*:bucket/([a-z0-9_-]+)$`)
-	tableARNPattern   = regexp.MustCompile(`^arn:aws:s3tables:[^:]*:[^:]*:bucket/([a-z0-9_-]+)/table/([a-z0-9_]+)/([a-z0-9_]+)$`)
+	tableARNPattern   = regexp.MustCompile(`^arn:aws:s3tables:[^:]*:[^:]*:bucket/([a-z0-9_-]+)/table/([a-z0-9_-]+)/([a-z0-9_-]+)$`)
 	bucketNamePattern = regexp.MustCompile(`^[a-z0-9_-]+$`)
 )
 
@@ -146,10 +146,10 @@ func validateNamespace(namespace []string) (string, error) {
 
 	// Enforce allowed character set consistent with table naming.
 	for _, ch := range name {
-		if (ch >= 'a' && ch <= 'z') || (ch >= '0' && ch <= '9') || ch == '_' {
+		if (ch >= 'a' && ch <= 'z') || (ch >= '0' && ch <= '9') || ch == '_' || ch == '-' {
 			continue
 		}
-		return "", fmt.Errorf("invalid namespace name: only 'a-z', '0-9', and '_' are allowed")
+		return "", fmt.Errorf("invalid namespace name: only 'a-z', '0-9', '_', and '-' are allowed")
 	}
 
 	return name, nil
@@ -164,10 +164,10 @@ func validateTableName(name string) (string, error) {
 		return "", fmt.Errorf("invalid table name: cannot be '.', '..' or contain '/'")
 	}
 	for _, ch := range name {
-		if (ch >= 'a' && ch <= 'z') || (ch >= '0' && ch <= '9') || ch == '_' {
+		if (ch >= 'a' && ch <= 'z') || (ch >= '0' && ch <= '9') || ch == '_' || ch == '-' {
 			continue
 		}
-		return "", fmt.Errorf("invalid table name: only 'a-z', '0-9', and '_' are allowed")
+		return "", fmt.Errorf("invalid table name: only 'a-z', '0-9', '_', and '-' are allowed")
 	}
 	return name, nil
 }