src/location.c

   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 #include "system.h"
  22
  23 #include <quotearg.h>
  24
  25 #include "location.h"
  26
  27 location const empty_location;
  28
  29 /* Output to OUT the location LOC.
  30    Warning: it uses quotearg's slot 3.  */
  31 void
  32 location_print (FILE *out, location loc)
  33 {
  34   fprintf (out, "%s:%d.%d",
  35            quotearg_n_style (3, escape_quoting_style, loc.start.file),
  36            loc.start.line, loc.start.column);
  37
  38   if (loc.start.file != loc.end.file)
  39     fprintf (out, "-%s:%d.%d",
  40              quotearg_n_style (3, escape_quoting_style, loc.end.file),
  41              loc.end.line, loc.end.column - 1);
  42   else if (loc.start.line < loc.end.line)
  43     fprintf (out, "-%d.%d", loc.end.line, loc.end.column - 1);
  44   else if (loc.start.column < loc.end.column - 1)
  45     fprintf (out, "-%d", loc.end.column - 1);
  46 }