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https://github.com/LadybirdBrowser/ladybird.git
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6704961c82
This removes the awkward String::replace API which was the only String
API which mutated the String and replaces it with a new immutable
version that returns a new String with the replacements applied. This
also fixes a couple of UAFs that were caused by the use of this API.
As an optimization an equivalent StringView::replace API was also added
to remove an unnecessary String allocations in the format of:
`String { view }.replace(...);`
84 lines
2.5 KiB
C++
84 lines
2.5 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* Copyright (c) 2020, Fei Wu <f.eiwu@yahoo.com>
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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/Forward.h>
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namespace AK {
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enum class CaseSensitivity {
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CaseInsensitive,
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CaseSensitive,
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};
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enum class TrimMode {
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Left,
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Right,
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Both
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};
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enum class TrimWhitespace {
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Yes,
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No,
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};
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struct MaskSpan {
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size_t start;
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size_t length;
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bool operator==(const MaskSpan& other) const
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{
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return start == other.start && length == other.length;
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}
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bool operator!=(const MaskSpan& other) const
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{
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return !(*this == other);
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}
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};
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namespace StringUtils {
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bool matches(const StringView& str, const StringView& mask, CaseSensitivity = CaseSensitivity::CaseInsensitive, Vector<MaskSpan>* match_spans = nullptr);
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template<typename T = int>
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Optional<T> convert_to_int(const StringView&, TrimWhitespace = TrimWhitespace::Yes);
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template<typename T = unsigned>
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Optional<T> convert_to_uint(const StringView&, TrimWhitespace = TrimWhitespace::Yes);
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template<typename T = unsigned>
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Optional<T> convert_to_uint_from_hex(const StringView&, TrimWhitespace = TrimWhitespace::Yes);
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bool equals_ignoring_case(const StringView&, const StringView&);
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bool ends_with(const StringView& a, const StringView& b, CaseSensitivity);
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bool starts_with(const StringView&, const StringView&, CaseSensitivity);
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bool contains(const StringView&, const StringView&, CaseSensitivity);
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bool is_whitespace(const StringView&);
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StringView trim(const StringView& string, const StringView& characters, TrimMode mode);
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StringView trim_whitespace(const StringView& string, TrimMode mode);
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Optional<size_t> find(StringView const& haystack, char needle, size_t start = 0);
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Optional<size_t> find(StringView const& haystack, StringView const& needle, size_t start = 0);
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Optional<size_t> find_last(StringView const& haystack, char needle);
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Vector<size_t> find_all(StringView const& haystack, StringView const& needle);
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enum class SearchDirection {
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Forward,
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Backward
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};
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Optional<size_t> find_any_of(StringView const& haystack, StringView const& needles, SearchDirection);
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String to_snakecase(const StringView&);
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String to_titlecase(StringView const&);
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String replace(StringView const&, StringView const& needle, StringView const& replacement, bool all_occurrences = false);
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size_t count(StringView const&, StringView const& needle);
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}
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}
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using AK::CaseSensitivity;
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using AK::TrimMode;
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using AK::TrimWhitespace;
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