d4d59fa339
This commit introduces all of the Windows Terminal and Console Host source, under the MIT license.
83 lines
2.1 KiB
C++
83 lines
2.1 KiB
C++
/*++
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Copyright (c) Microsoft Corporation
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Licensed under the MIT license.
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Module Name:
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- search.h
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Abstract:
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- This module is used for searching through the screen for a substring
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Author(s):
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- Michael Niksa (MiNiksa) 20-Apr-2018
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Revision History:
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- From components of find.c by Jerry Shea (jerrysh) 1-May-1997
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--*/
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#pragma once
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// This used to be in find.h.
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#define SEARCH_STRING_LENGTH (80)
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class Search final
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{
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public:
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enum class Direction
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{
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Forward,
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Backward
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};
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enum class Sensitivity
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{
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CaseInsensitive,
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CaseSensitive
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};
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Search(const SCREEN_INFORMATION& ScreenInfo,
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const std::wstring& str,
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const Direction dir,
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const Sensitivity sensitivity);
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Search(const SCREEN_INFORMATION& ScreenInfo,
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const std::wstring& str,
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const Direction dir,
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const Sensitivity sensitivity,
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const COORD anchor);
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bool FindNext();
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void Select() const;
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void Color(const TextAttribute attr) const;
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std::pair<COORD, COORD> GetFoundLocation() const noexcept;
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private:
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wchar_t _ApplySensitivity(const wchar_t wch) const;
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bool Search::_FindNeedleInHaystackAt(const COORD pos, COORD& start, COORD& end) const;
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bool _CompareChars(const std::wstring_view one, const std::wstring_view two) const;
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void _UpdateNextPosition();
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void _IncrementCoord(COORD& coord) const;
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void _DecrementCoord(COORD& coord) const;
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static COORD s_GetInitialAnchor(const SCREEN_INFORMATION& screenInfo, const Direction dir);
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static std::vector<std::vector<wchar_t>> s_CreateNeedleFromString(const std::wstring& wstr);
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bool _reachedEnd = false;
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COORD _coordNext = { 0 };
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COORD _coordSelStart = { 0 };
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COORD _coordSelEnd = { 0 };
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const COORD _coordAnchor;
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const std::vector<std::vector<wchar_t>> _needle;
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const Direction _direction;
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const Sensitivity _sensitivity;
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const SCREEN_INFORMATION& _screenInfo;
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#ifdef UNIT_TESTING
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friend class SearchTests;
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#endif
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};
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