%{ #include #define YY_DECL extern "C" int yylex() #include "lolfx.tab.h" %} %x C_COMMENT %x CPP_COMMENT %% /* * GLSL keywords */ "subroutine" { return GT_SUBROUTINE; } "patch" { return GT_PATCH; } "sample" { return GT_SAMPLE; } "flat" { return GT_FLAT; } "smooth" { return GT_SMOOTH; } "layout" { return GT_LAYOUT; } "sampler1dshadow" { return GT_SAMPLER1DSHADOW; } "sampler2dshadow" { return GT_SAMPLER2DSHADOW; } "samplercubeshadow" { return GT_SAMPLERCUBESHADOW; } "sampler1darray" { return GT_SAMPLER1DARRAY; } "sampler2darray" { return GT_SAMPLER2DARRAY; } "sampler1darrayshadow" { return GT_SAMPLER1DARRAYSHADOW; } "sampler2darrayshadow" { return GT_SAMPLER2DARRAYSHADOW; } "isampler1d" { return GT_ISAMPLER1D; } "isampler2d" { return GT_ISAMPLER2D; } "isampler3d" { return GT_ISAMPLER3D; } "isamplercube" { return GT_ISAMPLERCUBE; } "isampler1darray" { return GT_ISAMPLER1DARRAY; } "isampler2darray" { return GT_ISAMPLER2DARRAY; } "usampler1d" { return GT_USAMPLER1D; } "usampler2d" { return GT_USAMPLER2D; } "usampler3d" { return GT_USAMPLER3D; } "usamplercube" { return GT_USAMPLERCUBE; } "usampler1darray" { return GT_USAMPLER1DARRAY; } "usampler2darray" { return GT_USAMPLER2DARRAY; } "sampler2drect" { return GT_SAMPLER2DRECT; } "sampler2drectshadow" { return GT_SAMPLER2DRECTSHADOW; } "isampler2drect" { return GT_ISAMPLER2DRECT; } "usampler2drect" { return GT_USAMPLER2DRECT; } "samplerbuffer" { return GT_SAMPLERBUFFER; } "isamplerbuffer" { return GT_ISAMPLERBUFFER; } "usamplerbuffer" { return GT_USAMPLERBUFFER; } "samplercubearray" { return GT_SAMPLERCUBEARRAY; } "samplercubearrayshadow" { return GT_SAMPLERCUBEARRAYSHADOW; } "isamplercubearray" { return GT_ISAMPLERCUBEARRAY; } "usamplercubearray" { return GT_USAMPLERCUBEARRAY; } "sampler2dms" { return GT_SAMPLER2DMS; } "isampler2dms" { return GT_ISAMPLER2DMS; } "usampler2dms" { return GT_USAMPLER2DMS; } "sampler2dmsarray" { return GT_SAMPLER2DMSARRAY; } "isampler2dmsarray" { return GT_ISAMPLER2DMSARRAY; } "usampler2dmsarray" { return GT_USAMPLER2DMSARRAY; } "highp" { return GT_HIGHP; } "mediump" { return GT_MEDIUMP; } "lowp" { return GT_LOWP; } "precision" { return GT_PRECISION; } "invariant" { return GT_INVARIANT; } /* * Deprecated GLSL keywords */ "attribute" { return GT_ATTRIBUTE; } /* * GLSL vector types */ "bvec2" { return GT_BVEC2; } "bvec3" { return GT_BVEC3; } "bvec4" { return GT_BVEC4; } "ivec2" { return GT_IVEC2; } "ivec3" { return GT_IVEC3; } "ivec4" { return GT_IVEC4; } "uvec2" { return GT_UVEC2; } "uvec3" { return GT_UVEC3; } "uvec4" { return GT_UVEC4; } "vec2" { return GT_VEC2; } "vec3" { return GT_VEC3; } "vec4" { return GT_VEC4; } "mat2" { return GT_MAT2; } "mat2x2" { return GT_MAT2X2; } "mat2x3" { return GT_MAT2X3; } "mat2x4" { return GT_MAT2X4; } "mat3" { return GT_MAT3; } "mat3x2" { return GT_MAT3X2; } "mat3x3" { return GT_MAT3X3; } "mat3x4" { return GT_MAT3X4; } "mat4" { return GT_MAT4; } "mat4x2" { return GT_MAT4X2; } "mat4x3" { return GT_MAT4X3; } "mat4x4" { return GT_MAT4X4; } "dvec2" { return GT_DVEC2; } "dvec3" { return GT_DVEC3; } "dvec4" { return GT_DVEC4; } "dmat2" { return GT_DMAT2; } "dmat2x2" { return GT_DMAT2X2; } "dmat2x3" { return GT_DMAT2X3; } "dmat2x4" { return GT_DMAT2X4; } "dmat3" { return GT_DMAT3; } "dmat3x2" { return GT_DMAT3X2; } "dmat3x3" { return GT_DMAT3X3; } "dmat3x4" { return GT_DMAT3X4; } "dmat4" { return GT_DMAT4; } "dmat4x2" { return GT_DMAT4X2; } "dmat4x3" { return GT_DMAT4X3; } "dmat4x4" { return GT_DMAT4X4; } /* * GLSL constant values */ "true" { yylval.ival = 1; return BOOLCONSTANT; } "false" { yylval.ival = 0; return BOOLCONSTANT; } [xyzw]{1,4} { return FIELDSELECTION; } [rgba]{1,4} { return FIELDSELECTION; } [stpq]{1,4} { return FIELDSELECTION; } /* * GLSL keywords that are also valid or reserved in HLSL * and HLSL keywords that are also valid or reserved in GLSL. */ "bool" { return GHT_BOOL; } "break" { return GHT_BREAK; } "case" { return GHT_CASE; } "centroid" { return GHT_CENTROID; } "const" { return GHT_CONST; } "continue" { return GHT_CONTINUE; } "default" { return GHT_DEFAULT; } "discard" { return GHT_DISCARD; } "do" { return GHT_DO; } "double" { return GHT_DOUBLE; } "else" { return GHT_ELSE; } "float" { return GHT_FLOAT; } "for" { return GHT_FOR; } "if" { return GHT_IF; } "in" { return GHT_IN; } "inout" { return GHT_INOUT; } "int" { return GHT_INT; } "noperspective" { return GHT_NOPERSPECTIVE; } "out" { return GHT_OUT; } "return" { return GHT_RETURN; } "sampler1d" { return GHT_SAMPLER1D; } "sampler2d" { return GHT_SAMPLER2D; } "sampler3d" { return GHT_SAMPLER3D; } "samplercube" { return GHT_SAMPLERCUBE; } "struct" { return GHT_STRUCT; } "switch" { return GHT_SWITCH; } "uint" { return GHT_UINT; } "uniform" { return GHT_UNIFORM; } "void" { return GHT_VOID; } "while" { return GHT_WHILE; } (?i:bool) { return HGT_BOOL; } (?i:break) { return HGT_BREAK; } (?i:case) { return HGT_CASE; } (?i:centroid) { return HGT_CENTROID; } (?i:const) { return HGT_CONST; } (?i:continue) { return HGT_CONTINUE; } (?i:default) { return HGT_DEFAULT; } (?i:discard) { return HGT_DISCARD; } (?i:do) { return HGT_DO; } (?i:double) { return HGT_DOUBLE; } (?i:else) { return HGT_ELSE; } (?i:float) { return HGT_FLOAT; } (?i:for) { return HGT_FOR; } (?i:if) { return HGT_IF; } (?i:in) { return HGT_IN; } (?i:inout) { return HGT_INOUT; } (?i:int) { return HGT_INT; } (?i:noperspective) { return HGT_NOPERSPECTIVE; } (?i:out) { return HGT_OUT; } (?i:return) { return HGT_RETURN; } (?i:sampler1d) { return HGT_SAMPLER1D; } (?i:sampler2d) { return HGT_SAMPLER2D; } (?i:sampler3d) { return HGT_SAMPLER3D; } (?i:samplercube) { return HGT_SAMPLERCUBE; } (?i:struct) { return HGT_STRUCT; } (?i:switch) { return HGT_SWITCH; } (?i:uint) { return HGT_UINT; } (?i:uniform) { return HGT_UNIFORM; } (?i:void) { return HGT_VOID; } (?i:while) { return HGT_WHILE; } /* * HLSL keywords * Gathered from http://msdn.microsoft.com/en-us/library/windows/desktop/bb509568%28v=vs.85%29.aspx */ (?i:appendstructuredbuffer) { return HT_APPENDSTRUCTUREDBUFFER; } (?i:asm) { return HT_ASM; } (?i:asm_fragment) { return HT_ASM_FRAGMENT; } (?i:blendstate) { return HT_BLENDSTATE; } (?i:buffer) { return HT_BUFFER; } (?i:byteaddressbuffer) { return HT_BYTEADDRESSBUFFER; } (?i:cbuffer) { return HT_CBUFFER; } (?i:column_major) { return HT_COLUMN_MAJOR; } (?i:compile) { return HT_COMPILE; } (?i:compile_fragment) { return HT_COMPILE_FRAGMENT; } (?i:compileshader) { return HT_COMPILESHADER; } (?i:computeshader) { return HT_COMPUTESHADER; } (?i:consumestructuredbuffer) { return HT_CONSUMESTRUCTUREDBUFFER; } (?i:depthstencilstate) { return HT_DEPTHSTENCILSTATE; } (?i:depthstencilview) { return HT_DEPTHSTENCILVIEW; } (?i:domainshader) { return HT_DOMAINSHADER; } (?i:dword) { return HT_DWORD; } (?i:extern) { return HT_EXTERN; } (?i:false) { return HT_FALSE; } (?i:fxgroup) { return HT_FXGROUP; } (?i:geometryshader) { return HT_GEOMETRYSHADER; } (?i:groupshared) { return HT_GROUPSHARED; } (?i:half) { return HT_HALF; } (?i:hullshader) { return HT_HULLSHADER; } (?i:inline) { return HT_INLINE; } (?i:inputpatch) { return HT_INPUTPATCH; } (?i:interface) { return HT_INTERFACE; } (?i:line) { return HT_LINE; } (?i:lineadj) { return HT_LINEADJ; } (?i:linear) { return HT_LINEAR; } (?i:linestream) { return HT_LINESTREAM; } (?i:matrix) { return HT_MATRIX; } (?i:namespace) { return HT_NAMESPACE; } (?i:nointerpolation) { return HT_NOINTERPOLATION; } (?i:null) { return HT_NULL; } (?i:outputpatch) { return HT_OUTPUTPATCH; } (?i:packoffset) { return HT_PACKOFFSET; } (?i:pass) { return HT_PASS; } (?i:pixelfragment) { return HT_PIXELFRAGMENT; } (?i:pixelshader) { return HT_PIXELSHADER; } (?i:point) { return HT_POINT; } (?i:pointstream) { return HT_POINTSTREAM; } (?i:precise) { return HT_PRECISE; } (?i:rasterizerstate) { return HT_RASTERIZERSTATE; } (?i:rendertargetview) { return HT_RENDERTARGETVIEW; } (?i:register) { return HT_REGISTER; } (?i:row_major) { return HT_ROW_MAJOR; } (?i:rwbuffer) { return HT_RWBUFFER; } (?i:rwbyteaddressbuffer) { return HT_RWBYTEADDRESSBUFFER; } (?i:rwstructuredbuffer) { return HT_RWSTRUCTUREDBUFFER; } (?i:rwtexture1d) { return HT_RWTEXTURE1D; } (?i:rwtexture1darray) { return HT_RWTEXTURE1DARRAY; } (?i:rwtexture2d) { return HT_RWTEXTURE2D; } (?i:rwtexture2darray) { return HT_RWTEXTURE2DARRAY; } (?i:rwtexture3d) { return HT_RWTEXTURE3D; } (?i:sampler) { return HT_SAMPLER; } (?i:sampler_state) { return HT_SAMPLER_STATE; } (?i:samplerstate) { return HT_SAMPLERSTATE; } (?i:samplercomparisonstate) { return HT_SAMPLERCOMPARISONSTATE; } (?i:shared) { return HT_SHARED; } (?i:snorm) { return HT_SNORM; } (?i:stateblock) { return HT_STATEBLOCK; } (?i:stateblock_state) { return HT_STATEBLOCK_STATE; } (?i:static) { return HT_STATIC; } (?i:string) { return HT_STRING; } (?i:structuredbuffer) { return HT_STRUCTUREDBUFFER; } (?i:tbuffer) { return HT_TBUFFER; } (?i:technique) { return HT_TECHNIQUE; } (?i:technique10) { return HT_TECHNIQUE10; } (?i:technique11xz) { return HT_TECHNIQUE11XZ; } "texture" { return HT_TEXTURE; } (?i:texture1d) { return HT_TEXTURE1D; } (?i:texture1darray) { return HT_TEXTURE1DARRAY; } (?i:texture2d) { return HT_TEXTURE2D; } (?i:texture2darray) { return HT_TEXTURE2DARRAY; } (?i:texture2dms) { return HT_TEXTURE2DMS; } (?i:texture2dmsarray) { return HT_TEXTURE2DMSARRAY; } (?i:texture3d) { return HT_TEXTURE3D; } (?i:texturecube) { return HT_TEXTURECUBE; } (?i:texturecubearray) { return HT_TEXTURECUBEARRAY; } (?i:true) { return HT_TRUE; } (?i:typedef) { return HT_TYPEDEF; } (?i:triangle) { return HT_TRIANGLE; } (?i:triangleadj) { return HT_TRIANGLEADJ; } (?i:trianglestream) { return HT_TRIANGLESTREAM; } (?i:unorm) { return HT_UNORM; } (?i:vector) { return HT_VECTOR; } (?i:vertexfragment) { return HT_VERTEXFRAGMENT; } (?i:vertexshader) { return HT_VERTEXSHADER; } (?i:volatile) { return HT_VOLATILE; } /* * HLSL vector types * TODO: this can probably be factored somehow */ (?i:bool1) { return HT_BOOL1; } (?i:bool1x1) { return HT_BOOL1x1; } (?i:bool2x1) { return HT_BOOL2x1; } (?i:bool3x1) { return HT_BOOL3x1; } (?i:bool4x1) { return HT_BOOL4x1; } (?i:bool2) { return HT_BOOL2; } (?i:bool1x2) { return HT_BOOL1x2; } (?i:bool2x2) { return HT_BOOL2x2; } (?i:bool3x2) { return HT_BOOL3x2; } (?i:bool4x2) { return HT_BOOL4x2; } (?i:bool3) { return HT_BOOL3; } (?i:bool1x3) { return HT_BOOL1x3; } (?i:bool2x3) { return HT_BOOL2x3; } (?i:bool3x3) { return HT_BOOL3x3; } (?i:bool4x3) { return HT_BOOL4x3; } (?i:bool4) { return HT_BOOL4; } (?i:bool1x4) { return HT_BOOL1x4; } (?i:bool2x4) { return HT_BOOL2x4; } (?i:bool3x4) { return HT_BOOL3x4; } (?i:bool4x4) { return HT_BOOL4x4; } (?i:float1) { return HT_FLOAT1; } (?i:float1x1) { return HT_FLOAT1x1; } (?i:float2x1) { return HT_FLOAT2x1; } (?i:float3x1) { return HT_FLOAT3x1; } (?i:float4x1) { return HT_FLOAT4x1; } (?i:float2) { return HT_FLOAT2; } (?i:float1x2) { return HT_FLOAT1x2; } (?i:float2x2) { return HT_FLOAT2x2; } (?i:float3x2) { return HT_FLOAT3x2; } (?i:float4x2) { return HT_FLOAT4x2; } (?i:float3) { return HT_FLOAT3; } (?i:float1x3) { return HT_FLOAT1x3; } (?i:float2x3) { return HT_FLOAT2x3; } (?i:float3x3) { return HT_FLOAT3x3; } (?i:float4x3) { return HT_FLOAT4x3; } (?i:float4) { return HT_FLOAT4; } (?i:float1x4) { return HT_FLOAT1x4; } (?i:float2x4) { return HT_FLOAT2x4; } (?i:float3x4) { return HT_FLOAT3x4; } (?i:float4x4) { return HT_FLOAT4x4; } (?i:double1) { return HT_DOUBLE1; } (?i:double1x1) { return HT_DOUBLE1x1; } (?i:double2x1) { return HT_DOUBLE2x1; } (?i:double3x1) { return HT_DOUBLE3x1; } (?i:double4x1) { return HT_DOUBLE4x1; } (?i:double2) { return HT_DOUBLE2; } (?i:double1x2) { return HT_DOUBLE1x2; } (?i:double2x2) { return HT_DOUBLE2x2; } (?i:double3x2) { return HT_DOUBLE3x2; } (?i:double4x2) { return HT_DOUBLE4x2; } (?i:double3) { return HT_DOUBLE3; } (?i:double1x3) { return HT_DOUBLE1x3; } (?i:double2x3) { return HT_DOUBLE2x3; } (?i:double3x3) { return HT_DOUBLE3x3; } (?i:double4x3) { return HT_DOUBLE4x3; } (?i:double4) { return HT_DOUBLE4; } (?i:double1x4) { return HT_DOUBLE1x4; } (?i:double2x4) { return HT_DOUBLE2x4; } (?i:double3x4) { return HT_DOUBLE3x4; } (?i:double4x4) { return HT_DOUBLE4x4; } (?i:dword1) { return HT_DWORD1; } (?i:dword1x1) { return HT_DWORD1x1; } (?i:dword2x1) { return HT_DWORD2x1; } (?i:dword3x1) { return HT_DWORD3x1; } (?i:dword4x1) { return HT_DWORD4x1; } (?i:dword2) { return HT_DWORD2; } (?i:dword1x2) { return HT_DWORD1x2; } (?i:dword2x2) { return HT_DWORD2x2; } (?i:dword3x2) { return HT_DWORD3x2; } (?i:dword4x2) { return HT_DWORD4x2; } (?i:dword3) { return HT_DWORD3; } (?i:dword1x3) { return HT_DWORD1x3; } (?i:dword2x3) { return HT_DWORD2x3; } (?i:dword3x3) { return HT_DWORD3x3; } (?i:dword4x3) { return HT_DWORD4x3; } (?i:dword4) { return HT_DWORD4; } (?i:dword1x4) { return HT_DWORD1x4; } (?i:dword2x4) { return HT_DWORD2x4; } (?i:dword3x4) { return HT_DWORD3x4; } (?i:dword4x4) { return HT_DWORD4x4; } (?i:int1) { return HT_INT1; } (?i:int1x1) { return HT_INT1x1; } (?i:int2x1) { return HT_INT2x1; } (?i:int3x1) { return HT_INT3x1; } (?i:int4x1) { return HT_INT4x1; } (?i:int2) { return HT_INT2; } (?i:int1x2) { return HT_INT1x2; } (?i:int2x2) { return HT_INT2x2; } (?i:int3x2) { return HT_INT3x2; } (?i:int4x2) { return HT_INT4x2; } (?i:int3) { return HT_INT3; } (?i:int1x3) { return HT_INT1x3; } (?i:int2x3) { return HT_INT2x3; } (?i:int3x3) { return HT_INT3x3; } (?i:int4x3) { return HT_INT4x3; } (?i:int4) { return HT_INT4; } (?i:int1x4) { return HT_INT1x4; } (?i:int2x4) { return HT_INT2x4; } (?i:int3x4) { return HT_INT3x4; } (?i:int4x4) { return HT_INT4x4; } (?i:uint1) { return HT_UINT1; } (?i:uint1x1) { return HT_UINT1x1; } (?i:uint2x1) { return HT_UINT2x1; } (?i:uint3x1) { return HT_UINT3x1; } (?i:uint4x1) { return HT_UINT4x1; } (?i:uint2) { return HT_UINT2; } (?i:uint1x2) { return HT_UINT1x2; } (?i:uint2x2) { return HT_UINT2x2; } (?i:uint3x2) { return HT_UINT3x2; } (?i:uint4x2) { return HT_UINT4x2; } (?i:uint3) { return HT_UINT3; } (?i:uint1x3) { return HT_UINT1x3; } (?i:uint2x3) { return HT_UINT2x3; } (?i:uint3x3) { return HT_UINT3x3; } (?i:uint4x3) { return HT_UINT4x3; } (?i:uint4) { return HT_UINT4; } (?i:uint1x4) { return HT_UINT1x4; } (?i:uint2x4) { return HT_UINT2x4; } (?i:uint3x4) { return HT_UINT3x4; } (?i:uint4x4) { return HT_UINT4x4; } /* * HLSL preprocessor directives * Gathered from http://msdn.microsoft.com/en-us/library/windows/desktop/bb943993%28v=vs.85%29.aspx */ "#"[ \t]*"define" { return PREPROCESSOR_DEFINE; } "#"[ \t]*"elif" { return PREPROCESSOR_ELIF; } "#"[ \t]*"else" { return PREPROCESSOR_ELSE; } "#"[ \t]*"endif" { return PREPROCESSOR_ENDIF; } "#"[ \t]*"error" { return PREPROCESSOR_ERROR; } "#"[ \t]*"if" { return PREPROCESSOR_IF; } "#"[ \t]*"ifdef" { return PREPROCESSOR_IFDEF; } "#"[ \t]*"ifndef" { return PREPROCESSOR_IFNDEF; } "#"[ \t]*"include" { return PREPROCESSOR_INCLUDE; } "#"[ \t]*"line" { return PREPROCESSOR_LINE; } "#"[ \t]*"pragma" { return PREPROCESSOR_PRAGMA; } "#"[ \t]*"undef" { return PREPROCESSOR_UNDEF; } /* * GLSL preprocessor directives */ "#"[ \t]*"version".* { /* ignore for now */ } /* * LolFx preprocessor directives */ "#"[ \t]*"region" { return PREPROCESSOR_REGION; } "#"[ \t]*"pragma"[ \t]*"lolfx".* { /* ignore for now */ } /* * HLSL reserved keywords * Gathered from http://msdn.microsoft.com/en-us/library/windows/desktop/bb509569%28v=vs.85%29.aspx */ (?i:auto) { return HT_AUTO; } (?i:catch) { return HT_CATCH; } (?i:char) { return HT_CHAR; } (?i:class) { return HT_CLASS; } (?i:const_cast) { return HT_CONST_CAST; } (?i:delete) { return HT_DELETE; } (?i:dynamic_cast) { return HT_DYNAMIC_CAST; } (?i:enum) { return HT_ENUM; } (?i:explicit) { return HT_EXPLICIT; } (?i:friend) { return HT_FRIEND; } (?i:goto) { return HT_GOTO; } (?i:long) { return HT_LONG; } (?i:mutable) { return HT_MUTABLE; } (?i:new) { return HT_NEW; } (?i:operator) { return HT_OPERATOR; } (?i:private) { return HT_PRIVATE; } (?i:protected) { return HT_PROTECTED; } (?i:public) { return HT_PUBLIC; } (?i:reinterpret_cast) { return HT_REINTERPRET_CAST; } (?i:short) { return HT_SHORT; } (?i:signed) { return HT_SIGNED; } (?i:sizeof) { return HT_SIZEOF; } (?i:static_cast) { return HT_STATIC_CAST; } (?i:template) { return HT_TEMPLATE; } (?i:this) { return HT_THIS; } (?i:throw) { return HT_THROW; } (?i:try) { return HT_TRY; } (?i:typename) { return HT_TYPENAME; } (?i:union) { return HT_UNION; } (?i:unsigned) { return HT_UNSIGNED; } (?i:using) { return HT_USING; } (?i:virtual) { return HT_VIRTUAL; } /* * Various tokens */ "++" { return T_INC; } "--" { return T_DEC; } "<=" { return T_LE; } ">=" { return T_GE; } "==" { return T_EQ; } "!=" { return T_NE; } "<<" { return T_LEFT; } ">>" { return T_RIGHT; } "&&" { return T_AND; } "||" { return T_OR; } "^^" { return T_XOR; } "*=" { return T_MULEQ; } "/=" { return T_DIVEQ; } "%=" { return T_MODEQ; } "+=" { return T_ADDEQ; } "-=" { return T_SUBEQ; } "<<=" { return T_LEFTEQ; } ">>=" { return T_RIGHTEQ; } "&=" { return T_ANDEQ; } "^=" { return T_XOREQ; } "|=" { return T_OREQ; } (0|[1-9][0-9]*)\.[0-9]+ { yylval.fval = atof(yytext); return FLOATCONSTANT; } (0|[1-9][0-9]*)[uU] { yylval.uval = atoi(yytext); return UINTCONSTANT; } (0|[1-9][0-9]*) { yylval.ival = atoi(yytext); return INTCONSTANT; } [a-zA-Z][a-zA-Z0-9_]* { /* Copy token for now */ yylval.sval = strdup(yytext); return IDENTIFIER; } [ \t\n]+ { /* ignore whitespace */ } . { return *yytext; } /* * Ignore C comments */ "/*" { BEGIN(C_COMMENT); } "*/" { BEGIN(INITIAL); } [^*]* { } . { } /* * Ignore C++ comments */ "//" { BEGIN(CPP_COMMENT); } \n { BEGIN(INITIAL); } .* { } %%