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- // Copyright 2012 Google Inc. All rights reserved.
- // Use of this source code is governed by the Apache 2.0
- // license that can be found in the LICENSE file.
- package appengine
- import (
- "fmt"
- "regexp"
- "golang.org/x/net/context"
- "google.golang.org/appengine/internal"
- )
- // Namespace returns a replacement context that operates within the given namespace.
- func Namespace(c context.Context, namespace string) (context.Context, error) {
- if !validNamespace.MatchString(namespace) {
- return nil, fmt.Errorf("appengine: namespace %q does not match /%s/", namespace, validNamespace)
- }
- return internal.NamespacedContext(c, namespace), nil
- }
- // validNamespace matches valid namespace names.
- var validNamespace = regexp.MustCompile(`^[0-9A-Za-z._-]{0,100}$`)
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