Everywhere: Hoist the Libraries folder to the top-level

Author: https://github.com/trflynn89
Commit: 93712b24bf
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/2256
Reviewed-by: https://github.com/sideshowbarker

Libraries/LibWeb/Fetch/Infrastructure/HTTP.h

@@ -0,0 +1,42 @@
+/*
+ * Copyright (c) 2022-2023, Linus Groh <linusg@serenityos.org>
+ * Copyright (c) 2022, Luke Wilde <lukew@serenityos.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <AK/Forward.h>
+#include <AK/StringView.h>
+
+namespace Web::Fetch::Infrastructure {
+
+// https://fetch.spec.whatwg.org/#http-tab-or-space
+// An HTTP tab or space is U+0009 TAB or U+0020 SPACE.
+inline constexpr StringView HTTP_TAB_OR_SPACE = "\t "sv;
+
+// https://fetch.spec.whatwg.org/#http-whitespace
+// HTTP whitespace is U+000A LF, U+000D CR, or an HTTP tab or space.
+inline constexpr StringView HTTP_WHITESPACE = "\n\r\t "sv;
+
+// https://fetch.spec.whatwg.org/#http-newline-byte
+// An HTTP newline byte is 0x0A (LF) or 0x0D (CR).
+inline constexpr Array HTTP_NEWLINE_BYTES = {
+    0x0A, 0x0D
+};
+
+// https://fetch.spec.whatwg.org/#http-tab-or-space-byte
+// An HTTP tab or space byte is 0x09 (HT) or 0x20 (SP).
+inline constexpr Array HTTP_TAB_OR_SPACE_BYTES = {
+    0x09, 0x20
+};
+
+enum class HttpQuotedStringExtractValue {
+    No,
+    Yes,
+};
+
+[[nodiscard]] String collect_an_http_quoted_string(GenericLexer& lexer, HttpQuotedStringExtractValue extract_value = HttpQuotedStringExtractValue::No);
+
+}