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34d954e2d7
Add `ECMAScriptRegex`, LibRegex's C++ facade for ECMAScript regexes. The facade owns compilation, execution, captures, named groups, and error translation for the Rust backend, which lets callers stop depending on the legacy parser and matcher types directly. Use it in the remaining non-LibJS callers: URLPattern, HTML input pattern handling, and the places in LibHTTP that only needed token validation. Where a full regex engine was unnecessary, replace those call sites with direct character checks. Also update focused LibURL, LibHTTP, and WPT coverage for the migrated callers and corrected surrogate handling.
78 lines
1.9 KiB
C++
78 lines
1.9 KiB
C++
/*
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* Copyright (c) 2022-2023, Linus Groh <linusg@serenityos.org>
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* Copyright (c) 2022, Luke Wilde <lukew@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/Array.h>
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#include <AK/String.h>
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#include <AK/StringView.h>
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namespace HTTP {
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// https://fetch.spec.whatwg.org/#http-tab-or-space
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// An HTTP tab or space is U+0009 TAB or U+0020 SPACE.
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constexpr inline auto HTTP_TAB_OR_SPACE = "\t "sv;
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// https://fetch.spec.whatwg.org/#http-whitespace
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// HTTP whitespace is U+000A LF, U+000D CR, or an HTTP tab or space.
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constexpr inline auto HTTP_WHITESPACE = "\n\r\t "sv;
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// https://fetch.spec.whatwg.org/#http-newline-byte
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// An HTTP newline byte is 0x0A (LF) or 0x0D (CR).
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constexpr inline Array HTTP_NEWLINE_BYTES { 0x0Au, 0x0Du };
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// https://fetch.spec.whatwg.org/#http-tab-or-space-byte
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// An HTTP tab or space byte is 0x09 (HT) or 0x20 (SP).
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constexpr inline Array HTTP_TAB_OR_SPACE_BYTES { 0x09u, 0x20u };
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constexpr bool is_http_newline(u32 code_point)
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{
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return code_point == 0x0Au || code_point == 0x0Du;
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}
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constexpr bool is_http_tab_or_space(u32 code_point)
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{
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return code_point == 0x09u || code_point == 0x20u;
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}
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constexpr bool is_http_token_code_point(u32 code_point)
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{
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if ((code_point >= '0' && code_point <= '9')
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|| (code_point >= 'A' && code_point <= 'Z')
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|| (code_point >= 'a' && code_point <= 'z')) {
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return true;
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}
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switch (code_point) {
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case '!':
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case '#':
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case '$':
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case '%':
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case '&':
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case '\'':
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case '*':
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case '+':
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case '-':
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case '.':
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case '^':
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case '_':
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case '`':
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case '|':
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case '~':
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return true;
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default:
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return false;
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}
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}
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enum class HttpQuotedStringExtractValue {
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No,
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Yes,
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};
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[[nodiscard]] String collect_an_http_quoted_string(GenericLexer& lexer, HttpQuotedStringExtractValue extract_value = HttpQuotedStringExtractValue::No);
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}
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