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Side by Side Diff: bison/src/bison/2.4.1/bison-2.4.1-src/src/location.h

Issue 10807020: Add native Windows binary for bison. (Closed) Base URL: svn://chrome-svn/chrome/trunk/deps/third_party/
Patch Set: Created 8 years, 5 months ago
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1 /* Locations for Bison
2 Copyright (C) 2002, 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
3
4 This file is part of Bison, the GNU Compiler Compiler.
5
6 This program 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 3 of the License, or
9 (at your option) any later version.
10
11 This program 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 this program. If not, see <http://www.gnu.org/licenses/>. */
18
19 #ifndef LOCATION_H_
20 # define LOCATION_H_
21
22 # include "uniqstr.h"
23
24 /* A boundary between two characters. */
25 typedef struct
26 {
27 /* The name of the file that contains the boundary. */
28 uniqstr file;
29
30 /* The (origin-1) line that contains the boundary.
31 If this is INT_MAX, the line number has overflowed. */
32 int line;
33
34 /* The (origin-1) column just after the boundary. This is neither a
35 byte count, nor a character count; it is a column count.
36 If this is INT_MAX, the column number has overflowed. */
37 int column;
38
39 } boundary;
40
41 /* Set the position of \a a. */
42 static inline void
43 boundary_set (boundary *b, const char *f, int l, int c)
44 {
45 b->file = f;
46 b->line = l;
47 b->column = c;
48 }
49
50 /* Return nonzero if A and B are equal boundaries. */
51 static inline bool
52 equal_boundaries (boundary a, boundary b)
53 {
54 return (a.column == b.column
55 && a.line == b.line
56 && UNIQSTR_EQ (a.file, b.file));
57 }
58
59 /* A location, that is, a region of source code. */
60 typedef struct
61 {
62 /* Boundary just before the location starts. */
63 boundary start;
64
65 /* Boundary just after the location ends. */
66 boundary end;
67
68 } location;
69
70 #define YYLTYPE location
71
72 #define EMPTY_LOCATION_INIT {{NULL, 0, 0}, {NULL, 0, 0}}
73 extern location const empty_location;
74
75 /* Set *LOC and adjust scanner cursor to account for token TOKEN of
76 size SIZE. */
77 void location_compute (location *loc,
78 boundary *cur, char const *token, size_t size);
79
80 void location_print (FILE *out, location loc);
81
82 /* LOC_STR must be formatted as `file:line.column', it will be modified. */
83 void boundary_set_from_string (boundary *bound, char *loc_str);
84
85 #endif /* ! defined LOCATION_H_ */
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