/* OpenSCAD CSG grammar derived from FreeCAD:importCSG.py * * Designed for Gardens Point Yacc-like parser generator https://gppg.codeplex.com/ * * Parser is generated from command line : * > gppg /nolines CSG.y */ %namespace CSGImport %output=CSGParse.cs %partial //%visibility internal %YYSTYPE CSGImport.Node %token group %token sphere %token cylinder %token cube %token multmatrix %token intersection %token difference %token union %token rotate_extrude %token linear_extrude %token _true %token _false %token circle %token square %token polygon %token paths %token points %token undef %token polyhedron %token triangles %token faces %token render %token surface %token hull %token minkowski %token projection %token import %token color %token offset %token resize %token NUMBER %token LPAREN %token RPAREN %token OBRACE %token EBRACE %token OSQUARE %token ESQUARE %token COMMA %token SEMICOL %token EQ %token STRING %token ID %token DOT %token MODIFIER_BACK %token MODIFIER_DEBUG %token MODIFIER_ROOT %token MODIFIER_DISABLE %% module : block_list { StoreResult ($1); } ; block_list : statement { $$ = $1; } | block_list statement { $$ = MakeBinary (NodeTag.blocklist, $2, $1); } | statementwithmod { $$ = $1; } | block_list statementwithmod { $$ = MakeBinary (NodeTag.blocklist, $2, $1); } ; statement : part { $$ = $1; } | operation { $$ = $1; } | multmatrix_action { $$ = $1; } | group_action1 { $$ = $1; } | group_action2 { $$ = $1; } | color_action { $$ = $1; } | render_action { $$ = $1; } | offset_action { $$ = $1; } | resize_action { $$ = $1; } ; statementwithmod : anymodifier statement { $$ = $2; } ; anymodifier : MODIFIER_BACK | MODIFIER_DEBUG | MODIFIER_ROOT | MODIFIER_DISABLE ; part : sphere_action { $$ = $1; } | cylinder_action { $$ = $1; } | cube_action { $$ = $1; } | circle_action { $$ = $1; } | square_action { $$ = $1; } | polygon_action_nopath { $$ = $1; } | polygon_action_plus_path { $$ = $1; } | polyhedron_action { $$ = $1; } ; operation : difference_action { $$ = $1; } | intersection_action { $$ = $1; } | union_action { $$ = $1; } | rotate_extrude_action { $$ = $1; } | linear_extrude_with_twist { $$ = $1; } | rotate_extrude_file { $$ = $1; } | import_file1 { $$ = $1; } | surface_action { $$ = $1; } | projection_action { $$ = $1; } | hull_action { $$ = $1; } | minkowski_action { $$ = $1; } ; /* statement */ multmatrix_action: multmatrix LPAREN matrix RPAREN OBRACE block_list EBRACE { $$ = MakeBinary (NodeTag.multmatrix, $3, $6); } ; group_action1 : group LPAREN keywordargument_list RPAREN OBRACE block_list EBRACE { $$ = MakeBinary (NodeTag.group, $3, $6); } ; group_action2 : group LPAREN keywordargument_list RPAREN SEMICOL { $$ = MakeBinary (NodeTag.group, null, null); } ; color_action : color LPAREN vector RPAREN OBRACE block_list EBRACE { $$ = MakeBinary (NodeTag.color, $3, $6); }; render_action : render LPAREN keywordargument_list RPAREN OBRACE block_list EBRACE ; offset_action : offset LPAREN keywordargument_list RPAREN OBRACE block_list EBRACE ; resize_action : resize LPAREN keywordargument_list RPAREN OBRACE block_list EBRACE ; /* part */ sphere_action : sphere LPAREN keywordargument_list RPAREN SEMICOL { $$ = MakeBinary (NodeTag.sphere, $3, null); } ; cylinder_action : cylinder LPAREN keywordargument_list RPAREN SEMICOL { $$ = MakeBinary (NodeTag.cylinder, $3, null); }; cube_action : cube LPAREN keywordargument_list RPAREN SEMICOL { $$ = MakeBinary (NodeTag.cube, $3, null); } ; circle_action : circle LPAREN keywordargument_list RPAREN SEMICOL ; square_action : square LPAREN keywordargument_list RPAREN SEMICOL ; polygon_action_nopath : polygon LPAREN points EQ OSQUARE points_list_2d ESQUARE COMMA paths EQ undef COMMA keywordargument_list RPAREN SEMICOL ; polygon_action_plus_path : polygon LPAREN points EQ OSQUARE points_list_2d ESQUARE COMMA paths EQ OSQUARE path_set ESQUARE COMMA keywordargument_list RPAREN SEMICOL ; polyhedron_action : polyhedron LPAREN points EQ OSQUARE points_list_3d ESQUARE COMMA faces EQ OSQUARE points_list_3d ESQUARE COMMA keywordargument_list RPAREN SEMICOL | polyhedron LPAREN points EQ OSQUARE points_list_3d ESQUARE COMMA triangles EQ OSQUARE points_list_3d ESQUARE COMMA keywordargument_list RPAREN SEMICOL ; /* operation */ difference_action : difference LPAREN keywordargument_list RPAREN OBRACE block_list EBRACE { $$ = MakeBinary (NodeTag.difference, $3, $6); } ; intersection_action : intersection LPAREN keywordargument_list RPAREN OBRACE block_list EBRACE { $$ = MakeBinary (NodeTag.intersect, $3, $6); } ; union_action : union LPAREN keywordargument_list RPAREN OBRACE block_list EBRACE { $$ = MakeBinary (NodeTag.union, $3, $6); } ; rotate_extrude_action : rotate_extrude LPAREN keywordargument_list RPAREN OBRACE block_list EBRACE ; linear_extrude_with_twist : linear_extrude LPAREN keywordargument_list RPAREN OBRACE block_list EBRACE ; rotate_extrude_file : rotate_extrude LPAREN keywordargument_list RPAREN SEMICOL ; import_file1 : import LPAREN keywordargument_list RPAREN SEMICOL ; surface_action : surface LPAREN keywordargument_list RPAREN SEMICOL ; projection_action : projection LPAREN keywordargument_list RPAREN OBRACE block_list EBRACE ; hull_action : hull LPAREN RPAREN OBRACE block_list EBRACE ; minkowski_action : minkowski LPAREN keywordargument_list RPAREN OBRACE block_list EBRACE ; /* parameter values */ matrix : OSQUARE vector COMMA vector COMMA vector COMMA vector ESQUARE { $$ = MakeLeafMatrix ($2, $4, $6, $8); } ; vector : OSQUARE NUMBER COMMA NUMBER COMMA NUMBER COMMA NUMBER ESQUARE { $$ = MakeLeafVector ($2, $4, $6, $8); } ; size_vector : OSQUARE NUMBER COMMA NUMBER COMMA NUMBER ESQUARE { $$ = MakeLeafVector ($2, $4, $6); } ; point_3d : OSQUARE NUMBER COMMA NUMBER COMMA NUMBER ESQUARE { $$ = MakeLeafVector ($2, $4, $6); } ; point_2d : OSQUARE NUMBER COMMA NUMBER ESQUARE { $$ = MakeLeafVector ($2, $4); } ; boolean : _true { $$ = MakeIdLeaf("true"); } | _false { $$ = MakeIdLeaf("false"); } ; stripped_string : STRING ; keywordargument_list : keywordargument { $$ = MakeBinary (NodeTag.arglist, $1, null); } | keywordargument_list COMMA keywordargument { $$ = MakeBinary (NodeTag.arglist, $3, $1); } | ; keywordargument : ID EQ boolean { $$ = MakeBinary (NodeTag.arg, $1, $3); } | ID EQ NUMBER { $$ = MakeBinary (NodeTag.arg, $1, $3); } | ID EQ size_vector { $$ = MakeBinary (NodeTag.arg, $1, $3); } | ID EQ vector { $$ = MakeBinary (NodeTag.arg, $1, $3); } | ID EQ point_2d { $$ = MakeBinary (NodeTag.arg, $1, $3); } | ID EQ stripped_string { $$ = MakeBinary (NodeTag.arg, $1, $3); } ; points_list_2d : point_2d COMMA | points_list_2d point_2d COMMA | points_list_2d point_2d ; points_list_3d : point_3d COMMA | points_list_3d point_3d COMMA | points_list_3d point_3d ; path_points : NUMBER COMMA | path_points NUMBER COMMA | path_points NUMBER ; path_list : OSQUARE path_points ESQUARE ; path_set : path_list | path_set COMMA path_list ; %%