kicad/eeschema/sch_sexpr_parser.h

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2020 CERN
*
* @author Wayne Stambaugh <stambaughw@gmail.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, you may find one here:
* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
* or you may search the http://www.gnu.org website for the version 2 license,
* or you may write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
/**
* @file sch_sexpr_parser.h
* @brief Schematic and symbol library s-expression file format parser definitions.
*/
#ifndef __SCH_SEXPR_PARSER_H__
#define __SCH_SEXPR_PARSER_H__
#include <convert_to_biu.h> // IU_PER_MM
#include <math/util.h> // KiROUND, Clamp
#include <class_library.h>
#include <schematic_lexer.h>
#include <sch_file_versions.h>
#include <default_values.h> // For some default values
class LIB_ARC;
class LIB_BEZIER;
class LIB_CIRCLE;
class LIB_ITEM;
class LIB_PIN;
class LIB_POLYLINE;
class LIB_TEXT;
class PAGE_INFO;
class SCH_BITMAP;
class SCH_BUS_WIRE_ENTRY;
class SCH_COMPONENT;
class SCH_FIELD;
class SCH_JUNCTION;
class SCH_LINE;
class SCH_NO_CONNECT;
class SCH_SCREEN;
class SCH_SHEET;
class SCH_SHEET_PIN;
class SCH_TEXT;
class TITLE_BLOCK;
/**
* Simple container to manage fill parameters.
*/
class FILL_PARAMS
{
public:
FILL_T m_FillType;
COLOR4D m_Color;
};
/**
* Object to parser s-expression symbol library and schematic file formats.
*/
class SCH_SEXPR_PARSER : public SCHEMATIC_LEXER
{
int m_requiredVersion; ///< Set to the symbol library file version required.
int m_fieldId; ///< The current field ID.
int m_unit; ///< The current unit being parsed.
int m_convert; ///< The current body style being parsed.
wxString m_symbolName; ///< The current symbol name.
void parseHeader( TSCHEMATIC_T::T aHeaderType, int aFileVersion );
inline long parseHex()
{
NextTok();
return strtol( CurText(), NULL, 16 );
}
inline int parseInt()
{
return (int)strtol( CurText(), NULL, 10 );
}
inline int parseInt( const char* aExpected )
{
NeedNUMBER( aExpected );
return parseInt();
}
/**
* Parse the current token as an ASCII numeric string with possible leading
* whitespace into a double precision floating point number.
*
* @throw IO_ERROR if an error occurs attempting to convert the current token.
* @return The result of the parsed token.
*/
double parseDouble();
inline double parseDouble( const char* aExpected )
{
NeedNUMBER( aExpected );
return parseDouble();
}
inline double parseDouble( TSCHEMATIC_T::T aToken )
{
return parseDouble( GetTokenText( aToken ) );
}
inline int parseInternalUnits()
{
auto retval = parseDouble() * IU_PER_MM;
// Schematic internal units are represented as integers. Any values that are
// larger or smaller than the schematic units represent undefined behavior for
// the system. Limit values to the largest that can be displayed on the screen.
double int_limit = std::numeric_limits<int>::max() * 0.7071; // 0.7071 = roughly 1/sqrt(2)
return KiROUND( Clamp<double>( -int_limit, retval, int_limit ) );
}
inline int parseInternalUnits( const char* aExpected )
{
auto retval = parseDouble( aExpected ) * IU_PER_MM;
double int_limit = std::numeric_limits<int>::max() * 0.7071;
return KiROUND( Clamp<double>( -int_limit, retval, int_limit ) );
}
inline int parseInternalUnits( TSCHEMATIC_T::T aToken )
{
return parseInternalUnits( GetTokenText( aToken ) );
}
inline wxPoint parseXY()
{
wxPoint xy;
xy.x = parseInternalUnits( "X coordinate" );
xy.y = parseInternalUnits( "Y coordinate" );
return xy;
}
bool parseBool();
/**
* Parse stroke definition \a aStroke.
*
* @param aStrokeDef A reference to the #STROKE_PARAMS structure to write to.
*/
void parseStroke( STROKE_PARAMS& aStroke );
void parseFill( FILL_PARAMS& aFill );
void parseEDA_TEXT( EDA_TEXT* aText );
void parsePinNames( std::unique_ptr<LIB_PART>& aSymbol );
void parseProperty( std::unique_ptr<LIB_PART>& aSymbol );
LIB_ARC* parseArc();
LIB_BEZIER* parseBezier();
LIB_CIRCLE* parseCircle();
LIB_PIN* parsePin();
LIB_POLYLINE* parsePolyLine();
LIB_RECTANGLE* parseRectangle();
LIB_TEXT* parseText();
void parsePAGE_INFO( PAGE_INFO& aPageInfo );
void parseTITLE_BLOCK( TITLE_BLOCK& aTitleBlock );
void parseSchSymbolInstances( SCH_SCREEN* aScreen );
SCH_SHEET_PIN* parseSchSheetPin( SCH_SHEET* aSheet );
SCH_FIELD* parseSchField( SCH_ITEM* aParent );
SCH_COMPONENT* parseSchematicSymbol();
SCH_BITMAP* parseImage();
SCH_SHEET* parseSheet();
SCH_JUNCTION* parseJunction();
SCH_NO_CONNECT* parseNoConnect();
SCH_BUS_WIRE_ENTRY* parseBusEntry();
SCH_LINE* parseLine();
SCH_TEXT* parseSchText();
void parseBusAlias( SCH_SCREEN* aScreen );
public:
SCH_SEXPR_PARSER( LINE_READER* aLineReader = nullptr );
void ParseLib( LIB_PART_MAP& aSymbolLibMap );
LIB_PART* ParseSymbol( LIB_PART_MAP& aSymbolLibMap,
int aFileVersion = SEXPR_SYMBOL_LIB_FILE_VERSION );
LIB_ITEM* ParseDrawItem();
/**
* Parse the internal #LINE_READER object into \a aSheet.
*
* When \a aIsCopyableOnly is true, only schematic objects that are viewable on the canvas
* for copy and paste purposes are parsed. Other schematic content such as bus definitions
* or instance data will throw an #IO_ERROR exception.
*
* When \a aIsCopyableOnly is false, full schematic file parsing is performed.
*
* @note This does not load any sub-sheets or decent complex sheet hierarchies.
*
* @param aSheet The #SCH_SHEET object to store the parsed schematic file.
* @param aIsCopyableOnly Load only the schematic objects that can be copied into \a aSheet
* if true. Otherwise, load the full schematic file format.
* @param aFileVersion The schematic file version to parser. Defaults to the schematic
* file being parsed when \a aIsCopyableOnly is false.
*/
void ParseSchematic( SCH_SHEET* aSheet, bool aIsCopyablyOnly = false,
int aFileVersion = SEXPR_SCHEMATIC_FILE_VERSION );
/**
* Return whether a version number, if any was parsed, was too recent
*/
bool IsTooRecent() const;
};
#endif // __SCH_SEXPR_PARSER_H__