kicad/pcbnew/pcb_parser.h

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2012 CERN
* Copyright (C) 2012-2019 KiCad Developers, see AUTHORS.txt for contributors.
*
* 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 pcb_parser.h
* @brief Pcbnew s-expression file format parser definition.
*/
#ifndef _PCBNEW_PARSER_H_
#define _PCBNEW_PARSER_H_
#include <pcb_lexer.h>
#include <hashtables.h>
#include <layers_id_colors_and_visibility.h> // PCB_LAYER_ID
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#include <common.h> // KiROUND
#include <convert_to_biu.h> // IU_PER_MM
#include <unordered_map>
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class BOARD;
class BOARD_ITEM;
class D_PAD;
class BOARD_DESIGN_SETTINGS;
class DIMENSION;
class DRAWSEGMENT;
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class EDA_TEXT;
class EDGE_MODULE;
class TEXTE_MODULE;
class TEXTE_PCB;
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class TRACK;
class MODULE;
class PCB_TARGET;
class VIA;
class ZONE_CONTAINER;
class MODULE_3D_SETTINGS;
struct LAYER;
/**
* Class PCB_PARSER
* reads a Pcbnew s-expression formatted #LINE_READER object and returns the appropriate
* #BOARD_ITEM object.
*/
class PCB_PARSER : public PCB_LEXER
{
typedef std::unordered_map< std::string, PCB_LAYER_ID > LAYER_ID_MAP;
typedef std::unordered_map< std::string, LSET > LSET_MAP;
BOARD* m_board;
LAYER_ID_MAP m_layerIndices; ///< map layer name to it's index
LSET_MAP m_layerMasks; ///< map layer names to their masks
std::set<wxString> m_undefinedLayers; ///< set of layers not defined in layers section
std::vector<int> m_netCodes; ///< net codes mapping for boards being loaded
bool m_tooRecent; ///< true if version parses as later than supported
int m_requiredVersion; ///< set to the KiCad format version this board requires
bool m_showLegacyZoneWarning;
///> Converts net code using the mapping table if available,
///> otherwise returns unchanged net code if < 0 or if is is out of range
inline int getNetCode( int aNetCode )
{
if( ( aNetCode >= 0 ) && ( aNetCode < (int) m_netCodes.size() ) )
return m_netCodes[aNetCode];
return aNetCode;
}
/**
* function pushValueIntoMap
* Add aValue value in netcode mapping (m_netCodes) at index aIndex
* ensure there is room in m_netCodes for that, and add room if needed.
* @param aIndex = the index ( expected >=0 )of the location to use in m_netCodes
* @param aValue = the netcode value to map
*/
void pushValueIntoMap( int aIndex, int aValue );
/**
* Function init
* clears and re-establishes m_layerMap with the default layer names.
* m_layerMap will have some of its entries overwritten whenever a (new) board
* is encountered.
*/
void init();
/**
* Creates a mapping from the (short-lived) bug where layer names were translated
* TODO: Remove this once we support custom layer names
*
* @param aMap string mapping from translated to English layer names
*/
void createOldLayerMapping( std::unordered_map< std::string, std::string >& aMap );
/**
* Function skipCurrent
* Skip the current token level, i.e
* search for the RIGHT parenthesis which closes the current description
*/
void skipCurrent();
void parseHeader();
void parseGeneralSection();
void parsePAGE_INFO();
void parseTITLE_BLOCK();
void parseLayers();
void parseLayer( LAYER* aLayer );
void parseBoardStackup();
void parseSetup();
void parseDefaults( BOARD_DESIGN_SETTINGS& aSettings );
void parseDefaultTextDims( BOARD_DESIGN_SETTINGS& aSettings, int aLayer );
void parseNETINFO_ITEM();
void parseNETCLASS();
/** Read a DRAWSEGMENT description.
* @param aAllowCirclesZeroWidth = true to allow items with 0 width
* Only used in custom pad shapes for filled circles.
*/
DRAWSEGMENT* parseDRAWSEGMENT( bool aAllowCirclesZeroWidth = false );
TEXTE_PCB* parseTEXTE_PCB();
DIMENSION* parseDIMENSION();
/**
* Function parseMODULE_unchecked
* Parse a module, but do not replace PARSE_ERROR with FUTURE_FORMAT_ERROR automatically.
*/
MODULE* parseMODULE_unchecked( wxArrayString* aInitialComments = 0 );
TEXTE_MODULE* parseTEXTE_MODULE();
EDGE_MODULE* parseEDGE_MODULE();
D_PAD* parseD_PAD( MODULE* aParent = NULL );
// Parse only the (option ...) inside a pad description
bool parseD_PAD_option( D_PAD* aPad );
TRACK* parseTRACK();
VIA* parseVIA();
ZONE_CONTAINER* parseZONE_CONTAINER();
PCB_TARGET* parsePCB_TARGET();
BOARD* parseBOARD();
/**
* Function parseBOARD_unchecked
* Parse a module, but do not replace PARSE_ERROR with FUTURE_FORMAT_ERROR automatically.
*/
BOARD* parseBOARD_unchecked();
/**
* Function lookUpLayer
* parses the current token for the layer definition of a #BOARD_ITEM object.
*
* @param aMap is the LAYER_{NUM|MSK}_MAP to use for the lookup.
*
* @throw IO_ERROR if the layer is not valid.
* @throw PARSE_ERROR if the layer syntax is incorrect.
* @return int - The result of the parsed #BOARD_ITEM layer or set designator.
*/
template<class T, class M>
T lookUpLayer( const M& aMap );
/**
* Function parseBoardItemLayer
* parses the layer definition of a #BOARD_ITEM object.
*
* @throw IO_ERROR if the layer is not valid.
* @throw PARSE_ERROR if the layer syntax is incorrect.
* @return The index the parsed #BOARD_ITEM layer.
*/
PCB_LAYER_ID parseBoardItemLayer();
/**
* Function parseBoardItemLayersAsMask
* parses the layers definition of a #BOARD_ITEM object.
*
* @throw IO_ERROR if any of the layers is not valid.
* @throw PARSE_ERROR if the layers syntax is incorrect.
* @return The mask of layers the parsed #BOARD_ITEM is on.
*/
LSET parseBoardItemLayersAsMask();
/**
* Function parseXY
* parses a coordinate pair (xy X Y) in board units (mm).
*
* The parser checks if the previous token was T_LEFT and parses the remainder of
* the token syntax. This is used when parsing a list of coordinate points. This
* way the parser can be used in either case.
*
* @throw PARSE_ERROR if the coordinate pair syntax is incorrect.
* @return A wxPoint object containing the coordinate pair.
*/
wxPoint parseXY();
void parseXY( int* aX, int* aY );
/**
* Function parseEDA_TEXT
* parses the common settings for any object derived from #EDA_TEXT.
*
* @throw PARSE_ERROR if the text syntax is not valid.
* @param aText A point to the #EDA_TEXT object to save the parsed settings into.
*/
void parseEDA_TEXT( EDA_TEXT* aText );
MODULE_3D_SETTINGS* parse3DModel();
/**
* Function parseDouble
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* parses 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( PCB_KEYS_T::T aToken )
{
return parseDouble( GetTokenText( aToken ) );
}
inline int parseBoardUnits()
{
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// There should be no major rounding issues here, since the values in
// the file are in mm and get converted to nano-meters.
// See test program tools/test-nm-biu-to-ascii-mm-round-tripping.cpp
// to confirm or experiment. Use a similar strategy in both places, here
// and in the test program. Make that program with:
// $ make test-nm-biu-to-ascii-mm-round-tripping
auto retval = parseDouble() * IU_PER_MM;
// N.B. we currently represent board units as integers. Any values that are
// larger or smaller than those board units represent undefined behavior for
// the system. We limit values to the largest that is visible on the screen
// This is the diagonal distance of the full screen ~1.5m
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 parseBoardUnits( const char* aExpected )
{
auto retval = parseDouble( aExpected ) * IU_PER_MM;
// N.B. we currently represent board units as integers. Any values that are
// larger or smaller than those board units represent undefined behavior for
// the system. We limit values to the largest that is visible on the screen
double int_limit = std::numeric_limits<int>::max() * 0.7071;
// Use here KiROUND, not KIROUND (see comments about them)
// when having a function as argument, because it will be called twice
// with KIROUND
return KiROUND( Clamp<double>( -int_limit, retval, int_limit ) );
}
inline int parseBoardUnits( PCB_KEYS_T::T aToken )
{
return parseBoardUnits( GetTokenText( aToken ) );
}
inline int parseInt()
{
return (int)strtol( CurText(), NULL, 10 );
}
inline int parseInt( const char* aExpected )
{
NeedNUMBER( aExpected );
return parseInt();
}
inline long parseHex()
{
NextTok();
return strtol( CurText(), NULL, 16 );
}
bool parseBool();
/**
* Parse a format version tag like (version 20160417) return the version.
* Expects to start on 'version', and eats the closing paren.
*/
int parseVersion();
public:
PCB_PARSER( LINE_READER* aReader = NULL ) :
PCB_LEXER( aReader ),
m_board( 0 )
{
init();
}
// ~PCB_PARSER() {}
/**
* Function SetLineReader
* sets @a aLineReader into the parser, and returns the previous one, if any.
* @param aReader is what to read from for tokens, no ownership is received.
* @return LINE_READER* - previous LINE_READER or NULL if none.
*/
LINE_READER* SetLineReader( LINE_READER* aReader )
{
LINE_READER* ret = PopReader();
PushReader( aReader );
return ret;
}
void SetBoard( BOARD* aBoard )
{
init();
m_board = aBoard;
}
BOARD_ITEM* Parse();
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/**
* Function parseMODULE
* @param aInitialComments may be a pointer to a heap allocated initial comment block
* or NULL. If not NULL, then caller has given ownership of a wxArrayString to
* this function and care must be taken to delete it even on exception.
*/
MODULE* parseMODULE( wxArrayString* aInitialComments = 0 );
/**
* Return whether a version number, if any was parsed, was too recent
*/
bool IsTooRecent()
{
return m_tooRecent;
}
/**
* Return a string representing the version of kicad required to open this
* file. Not particularly meaningful if IsTooRecent() returns false.
*/
wxString GetRequiredVersion();
};
#endif // _PCBNEW_PARSER_H_