1 /********************************************************************** 2 * 3 * PostGIS - Spatial Types for PostgreSQL 4 * http://postgis.net 5 * 6 * PostGIS is free software: you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation, either version 2 of the License, or 9 * (at your option) any later version. 10 * 11 * PostGIS is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with PostGIS. If not, see <http://www.gnu.org/licenses/>. 18 * 19 ********************************************************************** 20 * 21 * Copyright (C) 2010-2015 Paul Ramsey <pramsey@cleverelephant.ca> 22 * Copyright (C) 2011 Sandro Santilli <strk@kbt.io> 23 * 24 **********************************************************************/ 25 26 #include "liblwgeom_internal.h" 27 28 /* 29 * Coordinate object to hold information about last coordinate temporarily. 30 * We need to know how many dimensions there are at any given time. 31 */ 32 typedef struct 33 { 34 lwflags_t flags; 35 double x; 36 double y; 37 double z; 38 double m; 39 } 40 POINT; 41 42 /* 43 * Global that holds the final output geometry for the WKT parser. 44 */ 45 extern LWGEOM_PARSER_RESULT global_parser_result; 46 extern const char *parser_error_messages[]; 47 48 /* 49 * Prototypes for the lexer 50 */ 51 extern void wkt_lexer_init(char *str); 52 extern void wkt_lexer_close(void); 53 extern int wkt_yylex_destroy(void); 54 55 56 /* 57 * Functions called from within the bison parser to construct geometries. 58 */ 59 int32_t wkt_lexer_read_srid(char *str); 60 POINT wkt_parser_coord_2(double c1, double c2); 61 POINT wkt_parser_coord_3(double c1, double c2, double c3); 62 POINT wkt_parser_coord_4(double c1, double c2, double c3, double c4); 63 POINTARRAY* wkt_parser_ptarray_add_coord(POINTARRAY *pa, POINT p); 64 POINTARRAY* wkt_parser_ptarray_new(POINT p); 65 LWGEOM* wkt_parser_point_new(POINTARRAY *pa, char *dimensionality); 66 LWGEOM* wkt_parser_linestring_new(POINTARRAY *pa, char *dimensionality); 67 LWGEOM* wkt_parser_circularstring_new(POINTARRAY *pa, char *dimensionality); 68 LWGEOM* wkt_parser_triangle_new(POINTARRAY *pa, char *dimensionality); 69 LWGEOM* wkt_parser_polygon_new(POINTARRAY *pa, char dimcheck); 70 LWGEOM* wkt_parser_polygon_add_ring(LWGEOM *poly, POINTARRAY *pa, char dimcheck); 71 LWGEOM* wkt_parser_polygon_finalize(LWGEOM *poly, char *dimensionality); 72 LWGEOM* wkt_parser_curvepolygon_new(LWGEOM *ring); 73 LWGEOM* wkt_parser_curvepolygon_add_ring(LWGEOM *poly, LWGEOM *ring); 74 LWGEOM* wkt_parser_curvepolygon_finalize(LWGEOM *poly, char *dimensionality); 75 LWGEOM* wkt_parser_compound_new(LWGEOM *element); 76 LWGEOM* wkt_parser_compound_add_geom(LWGEOM *col, LWGEOM *geom); 77 LWGEOM* wkt_parser_collection_new(LWGEOM *geom); 78 LWGEOM* wkt_parser_collection_add_geom(LWGEOM *col, LWGEOM *geom); 79 LWGEOM* wkt_parser_collection_finalize(int lwtype, LWGEOM *col, char *dimensionality); 80 void wkt_parser_geometry_new(LWGEOM *geom, int32_t srid); 81