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https://github.com/RGBCube/serenity
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Libraries: Move to Userland/Libraries/
This commit is contained in:
Andreas Kling
parent
dc28c07fa5
commit
13d7c09125
1857 changed files with 266 additions and 274 deletions
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@ -1,296 +0,0 @@
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/*
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* Copyright (c) 2020, Emanuel Sprung <emanuel.sprung@gmail.com>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include "RegexByteCode.h"
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#include "RegexMatch.h"
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#include "RegexOptions.h"
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#include "RegexParser.h"
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#include <AK/Forward.h>
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#include <AK/HashMap.h>
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#include <AK/NonnullOwnPtrVector.h>
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#include <AK/Types.h>
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#include <AK/Utf32View.h>
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#include <AK/Vector.h>
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#include <ctype.h>
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#include <stdio.h>
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namespace regex {
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static const constexpr size_t c_max_recursion = 5000;
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static const constexpr size_t c_match_preallocation_count = 0;
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struct RegexResult final {
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bool success { false };
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size_t count { 0 };
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Vector<Match> matches;
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Vector<Vector<Match>> capture_group_matches;
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Vector<HashMap<String, Match>> named_capture_group_matches;
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size_t n_operations { 0 };
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size_t n_capture_groups { 0 };
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size_t n_named_capture_groups { 0 };
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};
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template<class Parser>
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class Regex;
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template<class Parser>
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class Matcher final {
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public:
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Matcher(const Regex<Parser>& pattern, Optional<typename ParserTraits<Parser>::OptionsType> regex_options = {})
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: m_pattern(pattern)
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, m_regex_options(regex_options.value_or({}))
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{
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}
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~Matcher() = default;
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RegexResult match(const RegexStringView&, Optional<typename ParserTraits<Parser>::OptionsType> = {}) const;
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RegexResult match(const Vector<RegexStringView>, Optional<typename ParserTraits<Parser>::OptionsType> = {}) const;
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typename ParserTraits<Parser>::OptionsType options() const
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{
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return m_regex_options;
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}
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private:
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Optional<bool> execute(const MatchInput& input, MatchState& state, MatchOutput& output, size_t recursion_level) const;
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ALWAYS_INLINE Optional<bool> execute_low_prio_forks(const MatchInput& input, MatchState& original_state, MatchOutput& output, Vector<MatchState> states, size_t recursion_level) const;
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const Regex<Parser>& m_pattern;
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const typename ParserTraits<Parser>::OptionsType m_regex_options;
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};
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template<class Parser>
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class Regex final {
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public:
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String pattern_value;
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regex::Parser::Result parser_result;
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OwnPtr<Matcher<Parser>> matcher { nullptr };
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mutable size_t start_offset { 0 };
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explicit Regex(StringView pattern, typename ParserTraits<Parser>::OptionsType regex_options = {});
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~Regex() = default;
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typename ParserTraits<Parser>::OptionsType options() const;
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void print_bytecode(FILE* f = stdout) const;
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String error_string(Optional<String> message = {}) const;
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RegexResult match(const RegexStringView view, Optional<typename ParserTraits<Parser>::OptionsType> regex_options = {}) const
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{
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if (!matcher || parser_result.error != Error::NoError)
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return {};
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return matcher->match(view, regex_options);
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}
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RegexResult match(const Vector<RegexStringView> views, Optional<typename ParserTraits<Parser>::OptionsType> regex_options = {}) const
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{
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if (!matcher || parser_result.error != Error::NoError)
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return {};
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return matcher->match(views, regex_options);
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}
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String replace(const RegexStringView view, const StringView& replacement_pattern, Optional<typename ParserTraits<Parser>::OptionsType> regex_options = {}) const
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{
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if (!matcher || parser_result.error != Error::NoError)
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return {};
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StringBuilder builder;
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size_t start_offset = 0;
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RegexResult result = matcher->match(view, regex_options);
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if (!result.success)
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return view.to_string();
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for (size_t i = 0; i < result.matches.size(); ++i) {
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auto& match = result.matches[i];
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builder.append(view.substring_view(start_offset, match.global_offset - start_offset).to_string());
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start_offset = match.global_offset + match.view.length();
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GenericLexer lexer(replacement_pattern);
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while (!lexer.is_eof()) {
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if (lexer.consume_specific('\\')) {
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if (lexer.consume_specific('\\')) {
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builder.append('\\');
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continue;
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}
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auto number = lexer.consume_while(isdigit);
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if (auto index = number.to_uint(); index.has_value() && result.n_capture_groups >= index.value()) {
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builder.append(result.capture_group_matches[i][index.value() - 1].view.to_string());
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} else {
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builder.appendff("\\{}", number);
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}
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} else {
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builder.append(lexer.consume_while([](auto ch) { return ch != '\\'; }));
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}
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}
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}
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builder.append(view.substring_view(start_offset, view.length() - start_offset).to_string());
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return builder.to_string();
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}
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// FIXME: replace(const Vector<RegexStringView>, ...)
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RegexResult search(const RegexStringView view, Optional<typename ParserTraits<Parser>::OptionsType> regex_options = {}) const
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{
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if (!matcher || parser_result.error != Error::NoError)
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return {};
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AllOptions options = (AllOptions)regex_options.value_or({});
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if ((options & AllFlags::MatchNotBeginOfLine) && (options & AllFlags::MatchNotEndOfLine)) {
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options.reset_flag(AllFlags::MatchNotEndOfLine);
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options.reset_flag(AllFlags::MatchNotBeginOfLine);
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}
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options |= AllFlags::Global;
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return matcher->match(view, options);
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}
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RegexResult search(const Vector<RegexStringView> views, Optional<typename ParserTraits<Parser>::OptionsType> regex_options = {}) const
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{
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if (!matcher || parser_result.error != Error::NoError)
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return {};
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AllOptions options = (AllOptions)regex_options.value_or({});
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if ((options & AllFlags::MatchNotBeginOfLine) && (options & AllFlags::MatchNotEndOfLine)) {
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options.reset_flag(AllFlags::MatchNotEndOfLine);
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options.reset_flag(AllFlags::MatchNotBeginOfLine);
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}
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options |= AllFlags::Global;
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return matcher->match(views, options);
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}
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bool match(const RegexStringView view, RegexResult& m, Optional<typename ParserTraits<Parser>::OptionsType> regex_options = {}) const
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{
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m = match(view, regex_options);
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return m.success;
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}
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bool match(const Vector<RegexStringView> views, RegexResult& m, Optional<typename ParserTraits<Parser>::OptionsType> regex_options = {}) const
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{
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m = match(views, regex_options);
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return m.success;
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}
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bool search(const RegexStringView view, RegexResult& m, Optional<typename ParserTraits<Parser>::OptionsType> regex_options = {}) const
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{
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m = search(view, regex_options);
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return m.success;
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}
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bool search(const Vector<RegexStringView> views, RegexResult& m, Optional<typename ParserTraits<Parser>::OptionsType> regex_options = {}) const
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{
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m = search(views, regex_options);
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return m.success;
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}
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bool has_match(const RegexStringView view, Optional<typename ParserTraits<Parser>::OptionsType> regex_options = {}) const
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{
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if (!matcher || parser_result.error != Error::NoError)
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return false;
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RegexResult result = matcher->match(view, AllOptions { regex_options.value_or({}) } | AllFlags::SkipSubExprResults);
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return result.success;
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}
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bool has_match(const Vector<RegexStringView> views, Optional<typename ParserTraits<Parser>::OptionsType> regex_options = {}) const
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{
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if (!matcher || parser_result.error != Error::NoError)
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return false;
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RegexResult result = matcher->match(views, AllOptions { regex_options.value_or({}) } | AllFlags::SkipSubExprResults);
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return result.success;
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}
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};
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// free standing functions for match, search and has_match
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template<class Parser>
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RegexResult match(const RegexStringView view, Regex<Parser>& pattern, Optional<typename ParserTraits<Parser>::OptionsType> regex_options = {})
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{
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return pattern.match(view, regex_options);
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}
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template<class Parser>
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RegexResult match(const Vector<RegexStringView> view, Regex<Parser>& pattern, Optional<typename ParserTraits<Parser>::OptionsType> regex_options = {})
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{
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return pattern.match(view, regex_options);
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}
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template<class Parser>
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bool match(const RegexStringView view, Regex<Parser>& pattern, RegexResult&, Optional<typename ParserTraits<Parser>::OptionsType> regex_options = {})
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{
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return pattern.match(view, regex_options);
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}
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template<class Parser>
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bool match(const Vector<RegexStringView> view, Regex<Parser>& pattern, RegexResult&, Optional<typename ParserTraits<Parser>::OptionsType> regex_options = {})
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{
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return pattern.match(view, regex_options);
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}
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template<class Parser>
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RegexResult search(const RegexStringView view, Regex<Parser>& pattern, Optional<typename ParserTraits<Parser>::OptionsType> regex_options = {})
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{
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return pattern.search(view, regex_options);
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}
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template<class Parser>
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RegexResult search(const Vector<RegexStringView> views, Regex<Parser>& pattern, Optional<typename ParserTraits<Parser>::OptionsType> regex_options = {})
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{
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return pattern.search(views, regex_options);
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}
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template<class Parser>
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bool search(const RegexStringView view, Regex<Parser>& pattern, RegexResult&, Optional<typename ParserTraits<Parser>::OptionsType> regex_options = {})
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{
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return pattern.search(view, regex_options);
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}
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template<class Parser>
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bool search(const Vector<RegexStringView> views, Regex<Parser>& pattern, RegexResult&, Optional<typename ParserTraits<Parser>::OptionsType> regex_options = {})
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{
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return pattern.search(views, regex_options);
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}
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template<class Parser>
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bool has_match(const RegexStringView view, Regex<Parser>& pattern, Optional<typename ParserTraits<Parser>::OptionsType> regex_options = {})
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{
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return pattern.has_match(view, regex_options);
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}
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template<class Parser>
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bool has_match(const Vector<RegexStringView> views, Regex<Parser>& pattern, Optional<typename ParserTraits<Parser>::OptionsType> regex_options = {})
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{
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return pattern.has_match(views, regex_options);
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}
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}
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using regex::has_match;
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using regex::match;
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using regex::Regex;
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using regex::RegexResult;
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