158 lines
4.6 KiB
C
158 lines
4.6 KiB
C
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/*
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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 (C) 2020 CERN
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*
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* @author Wayne Stambaugh <stambaughw@gmail.com>
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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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/**
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* @file sch_sexpr_parser.h
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* @brief Schematic and symbol library s-expression file format parser definitions.
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*/
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#ifndef __SCH_SEXPR_PARSER_H__
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#define __SCH_SEXPR_PARSER_H__
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#include <convert_to_biu.h> // IU_PER_MM
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#include <math/util.h> // KiROUND, Clamp
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#include <class_library.h>
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#include <symbol_lib_lexer.h>
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class LIB_ARC;
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class LIB_BEZIER;
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class LIB_CIRCLE;
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class LIB_ITEM;
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class LIB_PIN;
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class LIB_POLYLINE;
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class LIB_TEXT;
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class SCH_SEXPR_PARSER : public SYMBOL_LIB_LEXER
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{
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int m_requiredVersion; ///< Set to the symbol library file version required.
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int m_fieldId; ///< The current field ID.
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int m_unit; ///< The current unit being parsed.
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int m_convert; ///< The current body style being parsed.
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wxString m_symbolName; ///< The current symbol name.
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void parseHeader();
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inline int parseInt()
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{
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return (int)strtol( CurText(), NULL, 10 );
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}
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inline int parseInt( const char* aExpected )
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{
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NeedNUMBER( aExpected );
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return parseInt();
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}
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/**
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* Parse the current token as an ASCII numeric string with possible leading
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* whitespace into a double precision floating point number.
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*
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* @throw IO_ERROR if an error occurs attempting to convert the current token.
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* @return The result of the parsed token.
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*/
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double parseDouble();
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inline double parseDouble( const char* aExpected )
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{
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NeedNUMBER( aExpected );
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return parseDouble();
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}
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inline double parseDouble( TSYMBOL_LIB_T::T aToken )
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{
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return parseDouble( GetTokenText( aToken ) );
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}
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inline int parseInternalUnits()
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{
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auto retval = parseDouble() * IU_PER_MM;
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// Schematic internal units are represented as integers. Any values that are
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// larger or smaller than the schematic units represent undefined behavior for
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// the system. Limit values to the largest that can be displayed on the screen.
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double int_limit = std::numeric_limits<int>::max() * 0.7071; // 0.7071 = roughly 1/sqrt(2)
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return KiROUND( Clamp<double>( -int_limit, retval, int_limit ) );
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}
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inline int parseInternalUnits( const char* aExpected )
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{
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auto retval = parseDouble( aExpected ) * IU_PER_MM;
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double int_limit = std::numeric_limits<int>::max() * 0.7071;
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return KiROUND( Clamp<double>( -int_limit, retval, int_limit ) );
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}
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inline int parseInternalUnits( TSYMBOL_LIB_T::T aToken )
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{
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return parseInternalUnits( GetTokenText( aToken ) );
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}
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inline wxPoint parseXY()
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{
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wxPoint xy;
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xy.x = parseInternalUnits( "X coordinate" );
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xy.y = parseInternalUnits( "Y coordinate" );
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return xy;
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}
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FILL_T parseFillMode();
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void parseEDA_TEXT( EDA_TEXT* aText );
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void parsePinNames( std::unique_ptr<LIB_PART>& aSymbol );
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void parseProperty( std::unique_ptr<LIB_PART>& aSymbol );
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LIB_ARC* parseArc();
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LIB_BEZIER* parseBezier();
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LIB_CIRCLE* parseCircle();
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LIB_PIN* parsePin();
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LIB_POLYLINE* parsePolyLine();
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LIB_RECTANGLE* parseRectangle();
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LIB_TEXT* parseText();
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public:
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SCH_SEXPR_PARSER( LINE_READER* aLineReader = nullptr );
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void ParseLib( LIB_PART_MAP& aSymbolLibMap );
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LIB_PART* ParseSymbol( LIB_PART_MAP& aSymbolLibMap );
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LIB_ITEM* ParseDrawItem();
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/**
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* Return whether a version number, if any was parsed, was too recent
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*/
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bool IsTooRecent() const;
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};
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#endif // __SCH_SEXPR_PARSER_H__
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