From: Paul Eggert <eggert@cs.ucla.edu>
Date: Sat, 7 Dec 2002 05:57:32 +0000 (+0000)
Subject: * src/location.c: Include <quotearg.h>.
X-Git-Tag: BISON-1_875~164
X-Git-Url: https://git.saurik.com/bison.git/commitdiff_plain/b17a1fc541456df871fa672c99d8d92cc7c084dd

* src/location.c: Include <quotearg.h>.
(empty_location): Now const.
(location_print): New function.  Follow the recommendation of the
GNU Coding Standards for locations that span file boundaries.
---

diff --git a/src/location.c b/src/location.c
index b4361cd6..1d95d215 100644
--- a/src/location.c
+++ b/src/location.c
@@ -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);
+}