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Unified Diff: lib/src/percent.dart

Issue 1393003003: Add a percent-encoding converter. (Closed) Base URL: git@github.com:dart-lang/convert.git@master
Patch Set: Created 5 years, 2 months ago
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Index: lib/src/percent.dart
diff --git a/lib/src/percent.dart b/lib/src/percent.dart
new file mode 100644
index 0000000000000000000000000000000000000000..0d63f6c8209668a810ec199204deb107da0e4ebf
--- /dev/null
+++ b/lib/src/percent.dart
@@ -0,0 +1,38 @@
+// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+library convert.percent;
+
+import 'dart:convert';
+
+import 'percent/encoder.dart';
+import 'percent/decoder.dart';
+
+export 'percent/encoder.dart' hide percentEncoder;
+export 'percent/decoder.dart' hide percentDecoder;
+
+/// The canonical instance of [PercentCodec].
+const percent = const PercentCodec._();
+
+// TODO(nweiz): Add flags to support generating and interpreting "+" as a space
+// character.
Lasse Reichstein Nielsen 2015/10/08 10:30:36 That's not plain percent-encoding. It's www-form-u
+/// A codec that converts byte arrays to and from percent-encoded (also known as
+/// URL-encoded) strings according to [RFC 3986][rfc].
+///
+/// [rfc]: https://tools.ietf.org/html/rfc3986#section-2.1
+///
+/// [encoder] encodes all bytes other than ASCII letters, decimal digits, or one
+/// of `-._~`. This matches the behavior of [Uri.encodeQueryComponent] except
+/// that it doesn't encode `0x20` bytes to the `+` character.
+///
+/// To be maximally flexible, [decoder] will decode any percent-encoded byte and
+/// will allow any non-percent-encoded byte other than `%`. By default, it
+/// interprets `+` as `0x2B` rather than `0x20` as emitted by
+/// [Uri.encodeQueryComponent].
+class PercentCodec extends Codec<List<int>, String> {
+ PercentEncoder get encoder => percentEncoder;
+ PercentDecoder get decoder => percentDecoder;
+
+ const PercentCodec._();
+}

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