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* src/location.c: Include <quotearg.h>.

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(empty_location): Now const.
(location_print): New function.  Follow the recommendation of the
GNU Coding Standards for locations that span file boundaries.
This commit is contained in:
Paul Eggert
2002-12-07 05:57:32 +00:00
parent 5fcdb07b70
commit b17a1fc541
1 changed files with 22 additions and 2 deletions
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24
src/location.c
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@@ -1,5 +1,5 @@
/* Locations for Bison
Copyright (C) 2002 Free Software Foundation, Inc.
Copyright (C) 2002 Free Software Foundation, Inc.
This file is part of Bison, the GNU Compiler Compiler.
@@ -20,5 +20,25 @@
#include "system.h"
#include "location.h"
#include <quotearg.h>
location_t empty_location = { NULL, 0, 0, 0, 0 };
location_t const empty_location;
/* Output to OUT the location LOC.
Warning: it uses quotearg's slot 3. */
void
location_print (FILE *out, location_t loc)
{
fprintf (out, "%s:%d.%d",
quotearg_n_style (3, escape_quoting_style, loc.start.file),
loc.start.line, loc.start.column);
if (loc.start.file != loc.end.file)
fprintf (out, "-%s:%d.%d",
quotearg_n_style (3, escape_quoting_style, loc.end.file),
loc.end.line, loc.end.column - 1);
else if (loc.start.line < loc.end.line)
fprintf (out, "-%d.%d", loc.end.line, loc.end.column - 1);
else if (loc.start.column < loc.end.column - 1)
fprintf (out, "-%d", loc.end.column - 1);
}