src/location.c

   1 /* Locations for Bison
   2
   3    Copyright (C) 2002, 2005 Free Software Foundation, Inc.
   4
   5    This file is part of Bison, the GNU Compiler Compiler.
   6
   7    Bison is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2, or (at your option)
  10    any later version.
  11
  12    Bison is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with Bison; see the file COPYING.  If not, write to
  19    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  20    Boston, MA 02110-1301, USA.  */
  21
  22 #include <config.h>
  23 #include "system.h"
  24
  25 #include <quotearg.h>
  26
  27 #include "location.h"
  28
  29 location const empty_location;
  30
  31 /* Output to OUT the location LOC.
  32    Warning: it uses quotearg's slot 3.  */
  33 void
  34 location_print (FILE *out, location loc)
  35 {
  36   fprintf (out, "%s:%d.%d",
  37            quotearg_n_style (3, escape_quoting_style, loc.start.file),
  38            loc.start.line, loc.start.column);
  39
  40   if (loc.start.file != loc.end.file)
  41     fprintf (out, "-%s:%d.%d",
  42              quotearg_n_style (3, escape_quoting_style, loc.end.file),
  43              loc.end.line, loc.end.column - 1);
  44   else if (loc.start.line < loc.end.line)
  45     fprintf (out, "-%d.%d", loc.end.line, loc.end.column - 1);
  46   else if (loc.start.column < loc.end.column - 1)
  47     fprintf (out, "-%d", loc.end.column - 1);
  48 }