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68 lines
1.8 KiB
C
68 lines
1.8 KiB
C
/* Locations for Bison
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Copyright (C) 2002, 2004 Free Software Foundation, Inc.
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This file is part of Bison, the GNU Compiler Compiler.
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Bison is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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Bison is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Bison; see the file COPYING. If not, write to
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the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#ifndef LOCATION_H_
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# define LOCATION_H_
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# include "uniqstr.h"
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/* A boundary between two characters. */
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typedef struct
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{
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/* The name of the file that contains the boundary. */
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uniqstr file;
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/* The (origin-1) line that contains the boundary. */
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int line;
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/* The (origin-1) column just after the boundary. This is neither a
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byte count, nor a character count; it is a column count. */
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int column;
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} boundary;
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/* Return nonzero if A and B are equal boundaries. */
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static inline bool
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equal_boundaries (boundary a, boundary b)
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{
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return (a.column == b.column
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&& a.line == b.line
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&& UNIQSTR_EQ (a.file, b.file));
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}
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/* A location, that is, a region of source code. */
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typedef struct
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{
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/* Boundary just before the location starts. */
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boundary start;
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/* Boundary just after the location ends. */
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boundary end;
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} location;
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#define YYLTYPE location
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extern location const empty_location;
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void location_print (FILE *, location);
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#endif /* ! defined LOCATION_H_ */
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