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204 lines
8.3 KiB
204 lines
8.3 KiB
/*
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* This program source code file is part of KiCad, a free EDA CAD application.
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*
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* Copyright The KiCad Developers, see AUTHORS.txt for contributors.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, you may find one here:
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* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
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* or you may search the http://www.gnu.org website for the version 2 license,
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* or you may write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#ifndef UNITS_PROVIDER_H
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#define UNITS_PROVIDER_H
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#include <eda_units.h>
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#include <origin_transforms.h>
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#include <core/minoptmax.h>
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#include <optional>
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#include <utility>
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class UNITS_PROVIDER
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{
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public:
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UNITS_PROVIDER( const EDA_IU_SCALE& aIuScale, EDA_UNITS aUnits ) :
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m_iuScale( aIuScale ),
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m_userUnits( aUnits )
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{}
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virtual ~UNITS_PROVIDER()
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{}
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EDA_UNITS GetUserUnits() const { return m_userUnits; }
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void SetUserUnits( EDA_UNITS aUnits ) { m_userUnits = aUnits; }
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virtual void GetUnitPair( EDA_UNITS& aPrimaryUnit, EDA_UNITS& aSecondaryUnits )
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{
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aPrimaryUnit = GetUserUnits();
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aSecondaryUnits = EDA_UNITS::MILS;
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if( EDA_UNIT_UTILS::IsImperialUnit( aPrimaryUnit ) )
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aSecondaryUnits = EDA_UNITS::MILLIMETRES;
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else
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aSecondaryUnits = EDA_UNITS::MILS;
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}
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const EDA_IU_SCALE& GetIuScale() const { return m_iuScale; }
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// No SetIuScale(); scale is invariant
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virtual ORIGIN_TRANSFORMS& GetOriginTransforms()
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{
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static ORIGIN_TRANSFORMS identityTransform;
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return identityTransform;
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}
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/**
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* Converts \a aValue in internal units into a united string.
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*
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* For readability, trailing 0s are removed if the mantissa has 3 or more digits.
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* This function should be used to display values in dialogs because a value entered in mm
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* (for instance 2.0 mm) could need up to 8 digits mantissa if displayed in inch to avoid
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* truncation or rounding made just by the printf function.
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*
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* @param aValue = value in internal units
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* @param aAddUnitLabel = true to add symbol unit to the string value
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* @param aType is the type of this value, and controls the way the value is converted
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* to a string, and the suitable unit
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* @return A wxString object containing value and optionally the symbol unit (like 2.000 mm)
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*/
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wxString StringFromValue( double aValue, bool aAddUnitLabel = false,
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EDA_DATA_TYPE aType = EDA_DATA_TYPE::DISTANCE ) const
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{
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return EDA_UNIT_UTILS::UI::StringFromValue( GetIuScale(), GetUserUnits(), aValue,
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aAddUnitLabel, aType );
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}
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/**
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* Converts an optional \a aValue in internal units into a united string.
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*
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* For readability, trailing 0s are removed if the mantissa has 3 or more digits.
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* This function should be used to display values in dialogs because a value entered in mm
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* (for instance 2.0 mm) could need up to 8 digits mantissa if displayed in inch to avoid
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* truncation or rounding made just by the printf function.
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*
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* @param aValue = optional value in internal units
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* @param aAddUnitLabel = true to add symbol unit to the string value
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* @param aType is the type of this value, and controls the way the value is converted
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* to a string, and the suitable unit
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* @return A wxString object containing value and optionally the symbol unit (like 2.000 mm)
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*/
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wxString StringFromOptionalValue( std::optional<int> aValue, bool aAddUnitLabel = false,
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EDA_DATA_TYPE aType = EDA_DATA_TYPE::DISTANCE ) const
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{
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if( !aValue )
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return NullUiString;
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else
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return EDA_UNIT_UTILS::UI::StringFromValue( GetIuScale(), GetUserUnits(),
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aValue.value(), aAddUnitLabel, aType );
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}
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wxString StringFromValue( const EDA_ANGLE& aValue, bool aAddUnitLabel = false ) const
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{
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return EDA_UNIT_UTILS::UI::StringFromValue( unityScale, EDA_UNITS::DEGREES,
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aValue.AsDegrees(), aAddUnitLabel,
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EDA_DATA_TYPE::DISTANCE );
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}
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/**
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* A lower-precision version of StringFromValue().
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*
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* Should ONLY be used for status text and messages. Not suitable for dialogs, files, etc.
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* where the loss of precision matters.
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*/
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wxString MessageTextFromValue( double aValue, bool aAddUnitLabel = true,
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EDA_DATA_TYPE aType = EDA_DATA_TYPE::DISTANCE ) const
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{
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return EDA_UNIT_UTILS::UI::MessageTextFromValue( GetIuScale(), GetUserUnits(), aValue,
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aAddUnitLabel, aType );
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}
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wxString MessageTextFromValue( const EDA_ANGLE& aValue, bool aAddUnitLabel = true ) const
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{
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return EDA_UNIT_UTILS::UI::MessageTextFromValue( unityScale, EDA_UNITS::DEGREES,
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aValue.AsDegrees(), aAddUnitLabel,
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EDA_DATA_TYPE::DISTANCE );
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}
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wxString MessageTextFromMinOptMax( const MINOPTMAX<int>& aValue ) const
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{
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return EDA_UNIT_UTILS::UI::MessageTextFromMinOptMax( GetIuScale(), GetUserUnits(), aValue );
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};
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/**
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* Converts \a aTextValue in \a aUnits to internal units used by the frame.
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* @warning This utilizes the current locale and will break if decimal formats differ
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* @param aType is the type of this value, and controls the way the string is converted
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* to a value
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*
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* @param aTextValue A reference to a wxString object containing the string to convert.
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* @return internal units value
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*/
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int ValueFromString( const wxString& aTextValue,
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EDA_DATA_TYPE aType = EDA_DATA_TYPE::DISTANCE ) const
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{
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double value = EDA_UNIT_UTILS::UI::DoubleValueFromString( GetIuScale(), GetUserUnits(),
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aTextValue, aType );
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return KiROUND<double, int>( value );
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}
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/**
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* Converts \a aTextValue in \a aUnits to internal units used by the frame. Allows the return
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* of an empty optional if the string represents a null value (currently empty string)
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* @warning This utilizes the current locale and will break if decimal formats differ
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* @param aType is the type of this value, and controls the way the string is converted
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* to a value
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*
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* @param aTextValue A reference to a wxString object containing the string to convert.
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* @return internal units value
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*/
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std::optional<int>
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OptionalValueFromString( const wxString& aTextValue,
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EDA_DATA_TYPE aType = EDA_DATA_TYPE::DISTANCE ) const
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{
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// Handle null (empty) values
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if( aTextValue == NullUiString )
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return {};
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double value = EDA_UNIT_UTILS::UI::DoubleValueFromString( GetIuScale(), GetUserUnits(),
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aTextValue, aType );
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return KiROUND<double, int>( value );
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}
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EDA_ANGLE AngleValueFromString( const wxString& aTextValue ) const
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{
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double angle = EDA_UNIT_UTILS::UI::DoubleValueFromString( GetIuScale(), EDA_UNITS::DEGREES,
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aTextValue );
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return EDA_ANGLE( angle, DEGREES_T );
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}
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/// @brief The string that is used in the UI to represent a null value
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static inline const wxString NullUiString = "";
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private:
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const EDA_IU_SCALE& m_iuScale;
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EDA_UNITS m_userUnits;
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};
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#endif // UNITS_PROVIDER_H
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