ladybird/AK/StringUtils.h
Idan Horowitz 6d2b003b6e AK: Make String::count not use strstr and take a StringView
This was needlessly copying StringView arguments, and was also using
strstr internally, which meant it was doing a bunch of unnecessary
strlen calls on it. This also moves the implementation to StringUtils
to allow API consistency between String and StringView.
2021-09-11 20:36:43 +03:00

82 lines
2.3 KiB
C++

/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2020, Fei Wu <f.eiwu@yahoo.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Forward.h>
namespace AK {
enum class CaseSensitivity {
CaseInsensitive,
CaseSensitive,
};
enum class TrimMode {
Left,
Right,
Both
};
enum class TrimWhitespace {
Yes,
No,
};
struct MaskSpan {
size_t start;
size_t length;
bool operator==(const MaskSpan& other) const
{
return start == other.start && length == other.length;
}
bool operator!=(const MaskSpan& other) const
{
return !(*this == other);
}
};
namespace StringUtils {
bool matches(const StringView& str, const StringView& mask, CaseSensitivity = CaseSensitivity::CaseInsensitive, Vector<MaskSpan>* match_spans = nullptr);
template<typename T = int>
Optional<T> convert_to_int(const StringView&, TrimWhitespace = TrimWhitespace::Yes);
template<typename T = unsigned>
Optional<T> convert_to_uint(const StringView&, TrimWhitespace = TrimWhitespace::Yes);
template<typename T = unsigned>
Optional<T> convert_to_uint_from_hex(const StringView&, TrimWhitespace = TrimWhitespace::Yes);
bool equals_ignoring_case(const StringView&, const StringView&);
bool ends_with(const StringView& a, const StringView& b, CaseSensitivity);
bool starts_with(const StringView&, const StringView&, CaseSensitivity);
bool contains(const StringView&, const StringView&, CaseSensitivity);
bool is_whitespace(const StringView&);
StringView trim(const StringView& string, const StringView& characters, TrimMode mode);
StringView trim_whitespace(const StringView& string, TrimMode mode);
Optional<size_t> find(StringView const& haystack, char needle, size_t start = 0);
Optional<size_t> find(StringView const& haystack, StringView const& needle, size_t start = 0);
Optional<size_t> find_last(StringView const& haystack, char needle);
Vector<size_t> find_all(StringView const& haystack, StringView const& needle);
enum class SearchDirection {
Forward,
Backward
};
Optional<size_t> find_any_of(StringView const& haystack, StringView const& needles, SearchDirection);
String to_snakecase(const StringView&);
String to_titlecase(StringView const&);
size_t count(StringView const&, StringView const& needle);
}
}
using AK::CaseSensitivity;
using AK::TrimMode;
using AK::TrimWhitespace;