projects / bison.git / blame
| Commit | Line | Data |
|---|---|---|
| 0c15323d AD |
1 | /* Locations for Bison |
| 2 | Copyright (C) 2002 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., 59 Temple Place - Suite 330, | |
| 19 | Boston, MA 02111-1307, USA. */ | |
| 20 | ||
| 21 | #ifndef LOCATION_H_ | |
| 22 | # define LOCATION_H_ | |
| 1a715ef2 | 23 | # include "quotearg.h" |
| 0c15323d AD |
24 | |
| 25 | typedef struct location_s | |
| 26 | { | |
| 1a715ef2 | 27 | const char *file; |
| 0c15323d AD |
28 | int first_line; |
| 29 | int first_column; | |
| 30 | int last_line; | |
| 31 | int last_column; | |
| 32 | } location_t; | |
| 33 | #define YYLTYPE location_t | |
| 34 | ||
| 35 | /* Initialize LOC. */ | |
| 1a715ef2 AD |
36 | # define LOCATION_RESET(Loc) \ |
| 37 | do { \ | |
| 38 | (Loc).file = NULL; \ | |
| 39 | (Loc).first_column = (Loc).first_line = 1; \ | |
| 40 | (Loc).last_column = (Loc).last_line = 1; \ | |
| 41 | } while (0) | |
| 0c15323d AD |
42 | |
| 43 | /* Advance of NUM columns. */ | |
| 1a715ef2 AD |
44 | # define LOCATION_COLUMNS(Loc, Num) \ |
| 45 | do { \ | |
| 46 | (Loc).last_column += Num; \ | |
| 47 | } while (0) | |
| 48 | ||
| 0c15323d AD |
49 | |
| 50 | /* Advance of NUM lines. */ | |
| 1a715ef2 AD |
51 | # define LOCATION_LINES(Loc, Num) \ |
| 52 | do { \ | |
| 53 | (Loc).last_column = 1; \ | |
| 54 | (Loc).last_line += Num; \ | |
| 55 | } while (0) | |
| 56 | ||
| 0c15323d AD |
57 | |
| 58 | /* Restart: move the first cursor to the last position. */ | |
| 1a715ef2 AD |
59 | # define LOCATION_STEP(Loc) \ |
| 60 | do { \ | |
| 61 | (Loc).first_column = (Loc).last_column; \ | |
| 62 | (Loc).first_line = (Loc).last_line; \ | |
| 63 | } while (0) | |
| 64 | ||
| 0c15323d AD |
65 | |
| 66 | /* Output LOC on the stream OUT. */ | |
| 1a715ef2 AD |
67 | # define LOCATION_PRINT(Out, Loc) \ |
| 68 | do { \ | |
| 69 | fprintf (stderr, "%s:", quotearg_style (escape_quoting_style, \ | |
| 70 | (Loc).file)); \ | |
| 71 | if ((Loc).first_line != (Loc).last_line) \ | |
| 72 | fprintf (Out, "%d.%d-%d.%d", \ | |
| 73 | (Loc).first_line, (Loc).first_column, \ | |
| 74 | (Loc).last_line, (Loc).last_column - 1); \ | |
| 75 | else if ((Loc).first_column < (Loc).last_column - 1) \ | |
| 76 | fprintf (Out, "%d.%d-%d", (Loc).first_line, \ | |
| 77 | (Loc).first_column, (Loc).last_column - 1); \ | |
| 78 | else \ | |
| 79 | fprintf (Out, "%d.%d", (Loc).first_line, (Loc).first_column); \ | |
| 80 | } while (0) | |
| 81 | ||
| 0c15323d | 82 | |
| 8efe435c AD |
83 | |
| 84 | extern location_t empty_location; | |
| 0c15323d | 85 | #endif /* !LOCATION_H_ */ |