1 /* Locations for Bison 2 Copyright (C) 2002, 2004, 2005, 2006 Free Software Foundation, Inc. 3 4 This file is part of Bison, the GNU Compiler Compiler. 5 6 Bison 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, or (at your option) 9 any later version. 10 11 Bison 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 Bison; see the file COPYING. If not, write to 18 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 19 Boston, MA 02110-1301, USA. */ 20 21 #ifndef LOCATION_H_ 22 # define LOCATION_H_ 23 24 # include "uniqstr.h" 25 26 /* A boundary between two characters. */ 27 typedef struct 28 { 29 /* The name of the file that contains the boundary. */ 30 uniqstr file; 31 32 /* The (origin-1) line that contains the boundary. 33 If this is INT_MAX, the line number has overflowed. */ 34 int line; 35 36 /* The (origin-1) column just after the boundary. This is neither a 37 byte count, nor a character count; it is a column count. 38 If this is INT_MAX, the column number has overflowed. */ 39 int column; 40 41 } boundary; 42 43 /* Return nonzero if A and B are equal boundaries. */ 44 static inline bool 45 equal_boundaries (boundary a, boundary b) 46 { 47 return (a.column == b.column 48 && a.line == b.line 49 && UNIQSTR_EQ (a.file, b.file)); 50 } 51 52 /* A location, that is, a region of source code. */ 53 typedef struct 54 { 55 /* Boundary just before the location starts. */ 56 boundary start; 57 58 /* Boundary just after the location ends. */ 59 boundary end; 60 61 } location; 62 63 #define YYLTYPE location 64 65 extern location const empty_location; 66 67 void location_print (FILE *out, location loc); 68 69 #endif /* ! defined LOCATION_H_ */ 70
