/* * This program source code file is part of KiCad, a free EDA CAD application. * * Copyright (C) 2007-2018 Jean-Pierre Charras jp.charras at wanadoo.fr * Copyright (C) 1992-2018 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 rs274x.cpp */ #include #include // for KiROUND #include #include #include #include #include extern int ReadInt( char*& text, bool aSkipSeparator = true ); extern double ReadDouble( char*& text, bool aSkipSeparator = true ); #define CODE( x, y ) ( ( (x) << 8 ) + (y) ) // See rs274xrevd_e.pdf, table 1: RS-274X parameters order of entry // in gerber files, when a coordinate is given (like X78Y600 or I0J80): // Y and Y are logical coordinates // A and B are plotter coordiantes // Usually A = X, B = Y // But we can have A = Y, B = X and/or offset, mirror, scale; // Also: // Image is what you must plot (the entire data of the file). // Layer is just a set of data blocks with their parameters. An image can have more than one // layer so a gerber layer is not like a board layer or the graphic layers used in GerbView // to show a file. enum RS274X_PARAMETERS { // Directive parameters: single usage recommended // Must be at the beginning of the file AXIS_SELECT = CODE( 'A', 'S' ), // Default: A=X, B=Y FORMAT_STATEMENT = CODE( 'F', 'S' ), // no default: this command must exists MIRROR_IMAGE = CODE( 'M', 'I' ), // Default: mo mirror MODE_OF_UNITS = CODE( 'M', 'O' ), // Default: inch INCH = CODE( 'I', 'N' ), MILLIMETER = CODE( 'M', 'M' ), OFFSET = CODE( 'O', 'F' ), // Default: A = 0, B = 0 SCALE_FACTOR = CODE( 'S', 'F' ), // Default: A = 1.0, B = 1.0 // Image parameters: // commands used only once at the beginning of the file, and are deprecated IMAGE_JUSTIFY = CODE( 'I', 'J' ), // Default: no justification IMAGE_NAME = CODE( 'I', 'N' ), // Default: void IMAGE_OFFSET = CODE( 'I', 'O' ), // Default: A = 0, B = 0 IMAGE_POLARITY = CODE( 'I', 'P' ), // Default: Positive IMAGE_ROTATION = CODE( 'I', 'R' ), // Default: 0 // Aperture parameters: // Usually for the whole file AP_DEFINITION = CODE( 'A', 'D' ), AP_MACRO = CODE( 'A', 'M' ), // X2 extension attribute commands // Mainly are found standard attributes and user attributes // standard attributes commands are: // TF (file attribute) TO (net attribute) // TA (aperture attribute) and TD (delete aperture attribute) FILE_ATTRIBUTE = CODE( 'T', 'F' ), // X2 extension Net attribute info // Net attribute options are: // TO (net attribute data): TO.CN or TO.P TO.N or TO.C NET_ATTRIBUTE = CODE( 'T', 'O' ), // X2 extension Aperture attribute TA APERTURE_ATTRIBUTE = CODE( 'T', 'A' ), // TD (delete aperture/object attribute): // Delete aperture attribute added by %TA or Oblect attribute added b %TO // TD (delete all) or %TD to delete . // eg: TD.P or TD.N or TD.C ... REMOVE_APERTURE_ATTRIBUTE = CODE( 'T', 'D' ), // Layer specific parameters // May be used singly or may be layer specfic // These parameters are at the beginning of the file or layer // and reset some layer parameters (like interpolation) KNOCKOUT = CODE( 'K', 'O' ), // Default: off STEP_AND_REPEAT = CODE( 'S', 'R' ), // Default: A = 1, B = 1 ROTATE = CODE( 'R', 'O' ), // Default: 0 LOAD_POLARITY = CODE( 'L', 'P' ), //LPC or LPD. Default: Dark (LPD) LOAD_NAME = CODE( 'L', 'N' ), // Deprecated: equivalent to G04 }; int GERBER_FILE_IMAGE::ReadXCommandID( char*& text ) { /* reads two bytes of data and assembles them into an int with the first * byte in the sequence put into the most significant part of a 16 bit value */ int result; int currbyte; if( text && *text ) { currbyte = *text++; result = ( currbyte & 0xFF ) << 8; } else return -1; if( text && *text ) { currbyte = *text++; result += currbyte & 0xFF; } else return -1; return result; } bool GERBER_FILE_IMAGE::ReadRS274XCommand( char *aBuff, unsigned int aBuffSize, char*& aText ) { bool ok = true; int code_command; aText++; for( ; ; ) { while( *aText ) { switch( *aText ) { case '%': // end of command aText++; m_CommandState = CMD_IDLE; goto exit; // success completion case ' ': case '\r': case '\n': aText++; break; case '*': aText++; break; default: code_command = ReadXCommandID( aText ); ok = ExecuteRS274XCommand( code_command, aBuff, aBuffSize, aText ); if( !ok ) goto exit; break; } } // end of current line, read another one. if( fgets( aBuff, aBuffSize, m_Current_File ) == NULL ) { // end of file ok = false; break; } m_LineNum++; aText = aBuff; } exit: return ok; } bool GERBER_FILE_IMAGE::ExecuteRS274XCommand( int aCommand, char* aBuff, unsigned int aBuffSize, char*& aText ) { int code; int seq_len; // not used, just provided int seq_char; bool ok = true; wxString msg; double fcoord; bool x_fmt_known = false; bool y_fmt_known = false; // conv_scale = scaling factor from inch to Internal Unit double conv_scale = IU_PER_MILS * 1000; if( m_GerbMetric ) conv_scale /= 25.4; switch( aCommand ) { case FORMAT_STATEMENT: seq_len = 2; while( *aText != '*' ) { switch( *aText ) { case ' ': aText++; break; case 'D': // Non-standard option for all zeros (leading + tailing) msg.Printf( _( "RS274X: Invalid GERBER format command '%c' at line %d: \"%s\"" ), 'D', m_LineNum, aBuff ); AddMessageToList( msg ); msg.Printf( _("GERBER file \"%s\" may not display as intended." ), m_FileName.ToAscii() ); AddMessageToList( msg ); KI_FALLTHROUGH; case 'L': // No Leading 0 m_NoTrailingZeros = false; aText++; break; case 'T': // No trailing 0 m_NoTrailingZeros = true; aText++; break; case 'A': // Absolute coord m_Relative = false; aText++; break; case 'I': // Relative coord m_Relative = true; aText++; break; case 'G': case 'N': // Sequence code (followed by one digit: the sequence len) // (sometimes found before the X,Y sequence) // Obscure option aText++; seq_char = *aText++; if( (seq_char >= '0') && (seq_char <= '9') ) seq_len = seq_char - '0'; break; case 'M': // Sequence code (followed by one digit: the sequence len) // (sometimes found after the X,Y sequence) // Obscure option aText++; code = *aText; if( ( code >= '0' ) && ( code <= '9' ) ) aText++; // skip the digit break; case 'X': case 'Y': { code = *(aText++); char ctmp = *(aText++) - '0'; if( code == 'X' ) { x_fmt_known = true; // number of digits after the decimal point (0 to 7 allowed) m_FmtScale.x = *aText - '0'; m_FmtLen.x = ctmp + m_FmtScale.x; // m_FmtScale is 0 to 7 // (Old Gerber specification was 0 to 6) if( m_FmtScale.x < 0 ) m_FmtScale.x = 0; if( m_FmtScale.x > 7 ) m_FmtScale.x = 7; } else { y_fmt_known = true; m_FmtScale.y = *aText - '0'; m_FmtLen.y = ctmp + m_FmtScale.y; if( m_FmtScale.y < 0 ) m_FmtScale.y = 0; if( m_FmtScale.y > 7 ) m_FmtScale.y = 7; } aText++; } break; case '*': break; default: msg.Printf( wxT( "Unknown id (%c) in FS command" ), *aText ); AddMessageToList( msg ); GetEndOfBlock( aBuff, aBuffSize, aText, m_Current_File ); ok = false; break; } } if( !x_fmt_known || !y_fmt_known ) AddMessageToList( wxT( "RS274X: Format Statement (FS) without X or Y format" ) ); break; case AXIS_SELECT: // command ASAXBY*% or %ASAYBX*% m_SwapAxis = false; if( strncasecmp( aText, "AYBX", 4 ) == 0 ) m_SwapAxis = true; break; case MIRROR_IMAGE: // command %MIA0B0*%, %MIA0B1*%, %MIA1B0*%, %MIA1B1*% m_MirrorA = m_MirrorB = false; while( *aText && *aText != '*' ) { switch( *aText ) { case 'A': // Mirror A axis ? aText++; if( *aText == '1' ) m_MirrorA = true; break; case 'B': // Mirror B axis ? aText++; if( *aText == '1' ) m_MirrorB = true; break; default: aText++; break; } } break; case MODE_OF_UNITS: code = ReadXCommandID( aText ); if( code == INCH ) m_GerbMetric = false; else if( code == MILLIMETER ) m_GerbMetric = true; conv_scale = m_GerbMetric ? IU_PER_MILS / 25.4 : IU_PER_MILS; break; case FILE_ATTRIBUTE: // Command %TF ... { X2_ATTRIBUTE dummy; dummy.ParseAttribCmd( m_Current_File, aBuff, aBuffSize, aText, m_LineNum ); if( dummy.IsFileFunction() ) { delete m_FileFunction; m_FileFunction = new X2_ATTRIBUTE_FILEFUNCTION( dummy ); // Don't set this until we get a file function; other code expects m_IsX2_file == true // to mean that we have a valid m_FileFunction m_IsX2_file = true; } else if( dummy.IsFileMD5() ) { m_MD5_value = dummy.GetPrm( 1 ); } else if( dummy.IsFilePart() ) { m_PartString = dummy.GetPrm( 1 ); } } break; case APERTURE_ATTRIBUTE: // Command %TA { X2_ATTRIBUTE dummy; dummy.ParseAttribCmd( m_Current_File, aBuff, aBuffSize, aText, m_LineNum ); if( dummy.GetAttribute() == ".AperFunction" ) { m_AperFunction = dummy.GetPrm( 1 ); // A few function values can have other parameters. Add them for( int ii = 2; ii < dummy.GetPrmCount(); ii++ ) m_AperFunction << "," << dummy.GetPrm( ii ); } } break; case NET_ATTRIBUTE: // Command %TO currently %TO.P %TO.N and %TO.C { X2_ATTRIBUTE dummy; dummy.ParseAttribCmd( m_Current_File, aBuff, aBuffSize, aText, m_LineNum ); if( dummy.GetAttribute() == ".N" ) { m_NetAttributeDict.m_NetAttribType |= GBR_NETLIST_METADATA::GBR_NETINFO_NET; m_NetAttributeDict.m_Netname = FormatStringFromGerber( dummy.GetPrm( 1 ) ); } else if( dummy.GetAttribute() == ".C" ) { m_NetAttributeDict.m_NetAttribType |= GBR_NETLIST_METADATA::GBR_NETINFO_CMP; m_NetAttributeDict.m_Cmpref = FormatStringFromGerber( dummy.GetPrm( 1 ) ); } else if( dummy.GetAttribute() == ".P" ) { m_NetAttributeDict.m_NetAttribType |= GBR_NETLIST_METADATA::GBR_NETINFO_PAD; m_NetAttributeDict.m_Cmpref = FormatStringFromGerber( dummy.GetPrm( 1 ) ); m_NetAttributeDict.m_Padname.SetField( FormatStringFromGerber( dummy.GetPrm( 2 ) ), true, true ); if( dummy.GetPrmCount() > 3 ) { m_NetAttributeDict.m_PadPinFunction.SetField( FormatStringFromGerber( dummy.GetPrm( 3 ) ), true, true ); } else { m_NetAttributeDict.m_PadPinFunction.Clear(); } } } break; case REMOVE_APERTURE_ATTRIBUTE: // Command %TD ... { X2_ATTRIBUTE dummy; dummy.ParseAttribCmd( m_Current_File, aBuff, aBuffSize, aText, m_LineNum ); RemoveAttribute( dummy ); } break; case OFFSET: // command: OFAnnBnn (nn = float number) = layer Offset m_Offset.x = m_Offset.y = 0; while( *aText != '*' ) { switch( *aText ) { case 'A': // A axis offset in current unit (inch or mm) aText++; fcoord = ReadDouble( aText ); m_Offset.x = KiROUND( fcoord * conv_scale ); break; case 'B': // B axis offset in current unit (inch or mm) aText++; fcoord = ReadDouble( aText ); m_Offset.y = KiROUND( fcoord * conv_scale ); break; } } break; case SCALE_FACTOR: m_Scale.x = m_Scale.y = 1.0; while( *aText != '*' ) { switch( *aText ) { case 'A': // A axis scale aText++; m_Scale.x = ReadDouble( aText ); break; case 'B': // B axis scale aText++; m_Scale.y = ReadDouble( aText ); break; } } break; case IMAGE_OFFSET: // command: IOAnnBnn (nn = float number) = Image Offset m_ImageOffset.x = m_ImageOffset.y = 0; while( *aText != '*' ) { switch( *aText ) { case 'A': // A axis offset in current unit (inch or mm) aText++; fcoord = ReadDouble( aText ); m_ImageOffset.x = KiROUND( fcoord * conv_scale ); break; case 'B': // B axis offset in current unit (inch or mm) aText++; fcoord = ReadDouble( aText ); m_ImageOffset.y = KiROUND( fcoord * conv_scale ); break; } } break; case IMAGE_ROTATION: // command IR0* or IR90* or IR180* or IR270* if( strncasecmp( aText, "0*", 2 ) == 0 ) m_ImageRotation = 0; else if( strncasecmp( aText, "90*", 3 ) == 0 ) m_ImageRotation = 90; else if( strncasecmp( aText, "180*", 4 ) == 0 ) m_ImageRotation = 180; else if( strncasecmp( aText, "270*", 4 ) == 0 ) m_ImageRotation = 270; else AddMessageToList( _( "RS274X: Command \"IR\" rotation value not allowed" ) ); break; case STEP_AND_REPEAT: // command SR, like %SRX3Y2I5.0J2*% m_Iterpolation = GERB_INTERPOL_LINEAR_1X; // Start a new Gerber layer GetLayerParams().m_StepForRepeat.x = 0.0; GetLayerParams().m_StepForRepeat.x = 0.0; // offset for Step and Repeat command GetLayerParams().m_XRepeatCount = 1; GetLayerParams().m_YRepeatCount = 1; // The repeat count GetLayerParams().m_StepForRepeatMetric = m_GerbMetric; // the step units while( *aText && *aText != '*' ) { switch( *aText ) { case 'I': // X axis offset aText++; GetLayerParams().m_StepForRepeat.x = ReadDouble( aText ); break; case 'J': // Y axis offset aText++; GetLayerParams().m_StepForRepeat.y = ReadDouble( aText ); break; case 'X': // X axis repeat count aText++; GetLayerParams().m_XRepeatCount = ReadInt( aText ); break; case 'Y': // Y axis offset aText++; GetLayerParams().m_YRepeatCount = ReadInt( aText ); break; default: aText++; break; } } break; case IMAGE_JUSTIFY: // Command IJAnBn* m_ImageJustifyXCenter = false; // Image Justify Center on X axis (default = false) m_ImageJustifyYCenter = false; // Image Justify Center on Y axis (default = false) m_ImageJustifyOffset = wxPoint(0,0); // Image Justify Offset on XY axis (default = 0,0) while( *aText && *aText != '*' ) { // IJ command is (for A or B axis) AC or AL or A switch( *aText ) { case 'A': // A axis justify aText++; if( *aText == 'C' ) { m_ImageJustifyXCenter = true; aText++; } else if( *aText == 'L' ) { m_ImageJustifyXCenter = true; aText++; } else { m_ImageJustifyOffset.x = KiROUND( ReadDouble( aText ) * conv_scale); } break; case 'B': // B axis justify aText++; if( *aText == 'C' ) { m_ImageJustifyYCenter = true; aText++; } else if( *aText == 'L' ) { m_ImageJustifyYCenter = true; aText++; } else { m_ImageJustifyOffset.y = KiROUND( ReadDouble( aText ) * conv_scale); } break; default: aText++; break; } } if( m_ImageJustifyXCenter ) m_ImageJustifyOffset.x = 0; if( m_ImageJustifyYCenter ) m_ImageJustifyOffset.y = 0; break; case KNOCKOUT: m_Iterpolation = GERB_INTERPOL_LINEAR_1X; // Start a new Gerber layer msg = _( "RS274X: Command KNOCKOUT ignored by GerbView" ) ; AddMessageToList( msg ); break; case ROTATE: // Layer rotation: command like %RO45*% m_Iterpolation = GERB_INTERPOL_LINEAR_1X; // Start a new Gerber layer m_LocalRotation = ReadDouble( aText ); // Store layer rotation in degrees break; case IMAGE_NAME: m_ImageName.Empty(); while( *aText != '*' ) m_ImageName.Append( *aText++ ); break; case LOAD_NAME: // %LN is a (deprecated) equivalentto G04: a comment while( *aText && *aText != '*' ) aText++; // Skip text break; case IMAGE_POLARITY: if( strncasecmp( aText, "NEG", 3 ) == 0 ) m_ImageNegative = true; else m_ImageNegative = false; break; case LOAD_POLARITY: if( *aText == 'C' ) GetLayerParams().m_LayerNegative = true; else GetLayerParams().m_LayerNegative = false; break; case AP_MACRO: // lines like %AMMYMACRO* // 5,1,8,0,0,1.08239X$1,22.5* // % /*ok = */ReadApertureMacro( aBuff, aBuffSize, aText, m_Current_File ); break; case AP_DEFINITION: /* input example: %ADD30R,0.081800X0.101500*% * Aperture definition has 4 options: C, R, O, P * (Circle, Rect, Oval, regular Polygon) * and shapes can have a hole (round or rectangular). * All optional parameters values start by X * at this point, text points to 2nd 'D' */ if( *aText++ != 'D' ) { ok = false; break; } m_Has_DCode = true; code = ReadInt( aText ); D_CODE* dcode; dcode = GetDCODEOrCreate( code ); if( dcode == NULL ) break; dcode->m_AperFunction = m_AperFunction; // at this point, text points to character after the ADD, // i.e. R in example above. If aText[0] is one of the usual // apertures: (C,R,O,P), there is a comma after it. if( aText[1] == ',' ) { char stdAperture = *aText; aText += 2; // skip "C," for example // First parameter is the size X: dcode->m_Size.x = KiROUND( ReadDouble( aText ) * conv_scale ); dcode->m_Size.y = dcode->m_Size.x; switch( stdAperture ) // Aperture desceiption has optional parameters. Read them { case 'C': // Circle dcode->m_Shape = APT_CIRCLE; while( *aText == ' ' ) aText++; if( *aText == 'X' ) { aText++; dcode->m_Drill.x = dcode->m_Drill.y = KiROUND( ReadDouble( aText ) * conv_scale ); dcode->m_DrillShape = APT_DEF_ROUND_HOLE; } while( *aText == ' ' ) aText++; if( *aText == 'X' ) { aText++; dcode->m_Drill.y = KiROUND( ReadDouble( aText ) * conv_scale ); dcode->m_DrillShape = APT_DEF_RECT_HOLE; } dcode->m_Defined = true; break; case 'O': // oval case 'R': // rect dcode->m_Shape = (stdAperture == 'O') ? APT_OVAL : APT_RECT; while( *aText == ' ' ) aText++; if( *aText == 'X' ) // Second parameter: size Y { aText++; dcode->m_Size.y = KiROUND( ReadDouble( aText ) * conv_scale ); } while( *aText == ' ' ) aText++; if( *aText == 'X' ) // third parameter: drill size (or drill size X) { aText++; dcode->m_Drill.x = KiROUND( ReadDouble( aText ) * conv_scale ); dcode->m_Drill.y = dcode->m_Drill.x; dcode->m_DrillShape = APT_DEF_ROUND_HOLE; } while( *aText == ' ' ) aText++; if( *aText == 'X' ) // fourth parameter: drill size Y { aText++; dcode->m_Drill.y = KiROUND( ReadDouble( aText ) * conv_scale ); dcode->m_DrillShape = APT_DEF_RECT_HOLE; } dcode->m_Defined = true; break; case 'P': /* Regular polygon: a command line like %ADD12P,0.040X10X25X0.025X0.025X0.0150*% * params are: , X, X, X, X */ dcode->m_Shape = APT_POLYGON; while( *aText == ' ' ) aText++; if( *aText == 'X' ) { aText++; dcode->m_EdgesCount = ReadInt( aText ); } while( *aText == ' ' ) aText++; if( *aText == 'X' ) { aText++; dcode->m_Rotation = ReadDouble( aText ); } while( *aText == ' ' ) aText++; if( *aText == 'X' ) { aText++; dcode->m_Drill.x = KiROUND( ReadDouble( aText ) * conv_scale ); dcode->m_Drill.y = dcode->m_Drill.x; dcode->m_DrillShape = APT_DEF_ROUND_HOLE; } while( *aText == ' ' ) aText++; if( *aText == 'X' ) { aText++; dcode->m_Drill.y = KiROUND( ReadDouble( aText ) * conv_scale ); dcode->m_DrillShape = APT_DEF_RECT_HOLE; } dcode->m_Defined = true; break; } } else // aText[0] starts an aperture macro name { APERTURE_MACRO am_lookup; while( *aText && *aText != '*' && *aText != ',' ) am_lookup.name.Append( *aText++ ); // When an aperture definition is like %AMLINE2* 22,1,$1,$2,0,0,-45* // the ADDxx command has parameters, like %ADD14LINE2,0.8X0.5*% if( *aText == ',' ) { // Read aperture macro parameters and store them aText++; // aText points the first parameter while( *aText && *aText != '*' ) { double param = ReadDouble( aText ); dcode->AppendParam( param ); while( isspace( *aText ) ) aText++; // Skip 'X' separator: if( *aText == 'X' || *aText == 'x' ) aText++; } } // lookup the aperture macro here. APERTURE_MACRO* pam = FindApertureMacro( am_lookup ); if( !pam ) { msg.Printf( wxT( "RS274X: aperture macro %s not found\n" ), TO_UTF8( am_lookup.name ) ); AddMessageToList( msg ); ok = false; break; } dcode->m_Shape = APT_MACRO; dcode->SetMacro( pam ); } break; default: ok = false; break; } (void) seq_len; // quiet g++, or delete the unused variable. ok = GetEndOfBlock( aBuff, aBuffSize, aText, m_Current_File ); return ok; } bool GERBER_FILE_IMAGE::GetEndOfBlock( char* aBuff, unsigned int aBuffSize, char*& aText, FILE* gerber_file ) { for( ; ; ) { while( (aText < aBuff + aBuffSize) && *aText ) { if( *aText == '*' ) return true; if( *aText == '%' ) return true; aText++; } if( fgets( aBuff, aBuffSize, gerber_file ) == NULL ) break; m_LineNum++; aText = aBuff; } return false; } char* GERBER_FILE_IMAGE::GetNextLine( char *aBuff, unsigned int aBuffSize, char* aText, FILE* aFile ) { for( ; ; ) { switch (*aText ) { case ' ': // skip blanks case '\n': case '\r': // Skip line terminators ++aText; break; case 0: // End of text found in aBuff: Read a new string if( fgets( aBuff, aBuffSize, aFile ) == NULL ) return NULL; m_LineNum++; aText = aBuff; return aText; default: return aText; } } return aText; } bool GERBER_FILE_IMAGE::ReadApertureMacro( char *aBuff, unsigned int aBuffSize, char*& aText, FILE* gerber_file ) { wxString msg; APERTURE_MACRO am; // read macro name while( *aText ) { if( *aText == '*' ) { ++aText; break; } am.name.Append( *aText++ ); } // Read aperture macro parameters for( ; ; ) { if( *aText == '*' ) ++aText; aText = GetNextLine( aBuff, aBuffSize, aText, gerber_file ); if( aText == NULL ) // End of File return false; // aText points the beginning of a new line. // Test for the last line in aperture macro lis: // last line is % or *% sometime found. if( *aText == '*' ) ++aText; if( *aText == '%' ) break; // exit with aText still pointing at % int paramCount = 0; // will be set to the minimal parameters count, // depending on the actual primitive int primitive_type = AMP_UNKNOWN; // Test for a valid symbol at the beginning of a description: // it can be: a parameter declaration like $1=$2/4 // or a digit (macro primitive selection) // all other symbols are illegal. if( *aText == '$' ) // local parameter declaration, inside the aperture macro { am.m_localparamStack.push_back( AM_PARAM() ); AM_PARAM& param = am.m_localparamStack.back(); aText = GetNextLine( aBuff, aBuffSize, aText, gerber_file ); if( aText == NULL) // End of File return false; param.ReadParam( aText ); continue; } else if( !isdigit(*aText) ) // Ill. symbol { msg.Printf( wxT( "RS274X: Aperture Macro \"%s\": ill. symbol, line: \"%s\"" ), am.name, FROM_UTF8( aBuff ) ); AddMessageToList( msg ); primitive_type = AMP_COMMENT; } else primitive_type = ReadInt( aText ); bool is_comment = false; switch( primitive_type ) { case AMP_COMMENT: // lines starting by 0 are a comment paramCount = 0; is_comment = true; // Skip comment while( *aText && ( *aText != '*' ) ) aText++; break; case AMP_CIRCLE: paramCount = 4; // minimal count. can have a optional parameter (rotation) break; case AMP_LINE2: case AMP_LINE20: paramCount = 7; break; case AMP_LINE_CENTER: case AMP_LINE_LOWER_LEFT: paramCount = 6; break; case AMP_EOF: paramCount = 0; break; case AMP_OUTLINE: paramCount = 4; // partial count. other parameters are vertices and rotation // Second parameter is vertice (coordinate pairs) count. break; case AMP_POLYGON: paramCount = 6; break; case AMP_MOIRE: paramCount = 9; break; case AMP_THERMAL: paramCount = 6; break; default: msg.Printf( wxT( "RS274X: Aperture Macro \"%s\": Invalid primitive id code %d, line %d: \"%s\"" ), am.name, primitive_type, m_LineNum, FROM_UTF8( aBuff ) ); AddMessageToList( msg ); return false; } if( is_comment ) continue; AM_PRIMITIVE prim( m_GerbMetric ); prim.primitive_id = (AM_PRIMITIVE_ID) primitive_type; int ii; for( ii = 0; ii < paramCount && *aText && *aText != '*'; ++ii ) { prim.params.push_back( AM_PARAM() ); AM_PARAM& param = prim.params.back(); aText = GetNextLine( aBuff, aBuffSize, aText, gerber_file ); if( aText == NULL) // End of File return false; param.ReadParam( aText ); } if( ii < paramCount ) { // maybe some day we can throw an exception and track a line number msg.Printf( "RS274X: read macro descr type %d: read %d parameters, insufficient parameters\n", prim.primitive_id, ii ); AddMessageToList( msg ); } // there are more parameters to read if this is an AMP_OUTLINE if( prim.primitive_id == AMP_OUTLINE ) { // so far we have read [0]:exposure, [1]:#points, [2]:X start, [3]: Y start // Now read all the points, plus trailing rotation in degrees. // params[1] is a count of polygon points, so it must be given // in advance, i.e. be immediate. wxASSERT( prim.params[1].IsImmediate() ); paramCount = (int) prim.params[1].GetValue( 0 ) * 2 + 1; for( int jj = 0; jj < paramCount && *aText != '*'; ++jj ) { prim.params.push_back( AM_PARAM() ); AM_PARAM& param = prim.params.back(); aText = GetNextLine( aBuff, aBuffSize, aText, gerber_file ); if( aText == NULL ) // End of File return false; param.ReadParam( aText ); } } // AMP_CIRCLE can have a optional parameter (rotation) if( prim.primitive_id == AMP_CIRCLE && aText && *aText != '*' ) { prim.params.push_back( AM_PARAM() ); AM_PARAM& param = prim.params.back(); param.ReadParam( aText ); } am.primitives.push_back( prim ); } m_aperture_macros.insert( am ); return true; }