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0c15323d | 1 | /* Locations for Bison |
8f759107 | 2 | Copyright (C) 2002 Free Software Foundation, Inc. |
0c15323d AD |
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., 59 Temple Place - Suite 330, | |
19 | Boston, MA 02111-1307, USA. */ | |
20 | ||
21 | #ifndef LOCATION_H_ | |
22 | # define LOCATION_H_ | |
23 | ||
8f759107 PE |
24 | /* A boundary between two characters. */ |
25 | typedef struct | |
0c15323d | 26 | { |
8f759107 PE |
27 | /* The name of the file that contains the boundary. */ |
28 | char const *file; | |
29 | ||
30 | /* The (origin-1) line that contains the boundary. */ | |
31 | int line; | |
32 | ||
33 | /* The (origin-1) column just after the boundary. This is neither a | |
34 | byte count, nor a character count; it is a column count. */ | |
35 | int column; | |
36 | ||
37 | } boundary; | |
38 | ||
39 | /* Return nonzero if A and B are equal boundaries. */ | |
40 | static inline bool | |
41 | equal_boundaries (boundary a, boundary b) | |
42 | { | |
43 | return (a.column == b.column | |
44 | && a.line == b.line | |
45 | && a.file == b.file); | |
46 | } | |
47 | ||
48 | /* A location, that is, a region of source code. */ | |
49 | typedef struct | |
50 | { | |
51 | /* Boundary just before the location starts. */ | |
52 | boundary start; | |
53 | ||
54 | /* Boundary just after the location ends. */ | |
55 | boundary end; | |
56 | ||
57 | } location_t; | |
58 | ||
0c15323d AD |
59 | #define YYLTYPE location_t |
60 | ||
8f759107 PE |
61 | extern location_t const empty_location; |
62 | ||
63 | void location_print (FILE *, location_t); | |
64 | ||
65 | #endif /* ! defined LOCATION_H_ */ |