X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/72cd9a913f6d282c5e24990505c2c820bda2bf1b..7d1aa2d6365c103a4ae5e4c336b7c8bc3234df4f:/data/location.cc
diff --git a/data/location.cc b/data/location.cc
index e750779c..987843b2 100644
--- a/data/location.cc
+++ b/data/location.cc
@@ -1,6 +1,6 @@
# C++ skeleton for Bison
-# Copyright (C) 2002-2012 Free Software Foundation, Inc.
+# Copyright (C) 2002-2013 Free Software Foundation, Inc.
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
@@ -16,30 +16,13 @@
# along with this program. If not, see .
m4_pushdef([b4_copyright_years],
- [2002-2012])
+ [2002-2013])
-# We do want M4 expansion after # for CPP macros.
-m4_changecom()
-m4_divert_push(0)dnl
-@output(b4_dir_prefix[]position.hh@)@
-b4_copyright([Positions for Bison parsers in C++])[
-
-/**
- ** \file position.hh
- ** Define the ]b4_namespace_ref[::position class.
- */
-
-#ifndef BISON_POSITION_HH
-# define BISON_POSITION_HH
-
-# include
-# include
-# include
-
-]b4_null_define[
-
-]b4_namespace_open[
- /// Abstract a position.
+# b4_position_define
+# ------------------
+# Define class position.
+m4_define([b4_position_define],
+[[ /// Abstract a position.
class position
{
public:
@@ -90,7 +73,7 @@ b4_copyright([Positions for Bison parsers in C++])[
};
/// Add and assign a position.
- inline const position&
+ inline position&
operator+= (position& res, const int width)
{
res.columns (width);
@@ -106,7 +89,7 @@ b4_copyright([Positions for Bison parsers in C++])[
}
/// Add and assign a position.
- inline const position&
+ inline position&
operator-= (position& res, const int width)
{
return res += -width;
@@ -141,34 +124,21 @@ b4_copyright([Positions for Bison parsers in C++])[
** \param ostr the destination output stream
** \param pos a reference to the position to redirect
*/
- inline std::ostream&
- operator<< (std::ostream& ostr, const position& pos)
+ template
+ inline std::basic_ostream&
+ operator<< (std::basic_ostream& ostr, const position& pos)
{
if (pos.filename)
ostr << *pos.filename << ':';
return ostr << pos.line << '.' << pos.column;
}
+]])
-]b4_namespace_close[
-#endif // not BISON_POSITION_HH]
-@output(b4_dir_prefix[]location.hh@)@
-b4_copyright([Locations for Bison parsers in C++])[
-/**
- ** \file location.hh
- ** Define the ]b4_namespace_ref[::location class.
- */
-
-#ifndef BISON_LOCATION_HH
-# define BISON_LOCATION_HH
-
-# include
-# include
-# include "position.hh"
-
-]b4_namespace_open[
-
- /// Abstract a location.
+# b4_location_define
+# ------------------
+m4_define([b4_location_define],
+[[ /// Abstract a location.
class location
{
public:
@@ -279,24 +249,68 @@ b4_copyright([Locations for Bison parsers in C++])[
**
** Avoid duplicate information.
*/
- inline std::ostream& operator<< (std::ostream& ostr, const location& loc)
+ template
+ inline std::basic_ostream&
+ operator<< (std::basic_ostream& ostr, const location& loc)
{
- position last = loc.end - 1;
- ostr << loc.begin;
- if (last.filename
+ unsigned int end_col = 0 < loc.end.column ? loc.end.column - 1 : 0;
+ ostr << loc.begin// << "(" << loc.end << ") "
+;
+ if (loc.end.filename
&& (!loc.begin.filename
- || *loc.begin.filename != *last.filename))
- ostr << '-' << last;
- else if (loc.begin.line != last.line)
- ostr << '-' << last.line << '.' << last.column;
- else if (loc.begin.column != last.column)
- ostr << '-' << last.column;
+ || *loc.begin.filename != *loc.end.filename))
+ ostr << '-' << loc.end.filename << ':' << loc.end.line << '.' << end_col;
+ else if (loc.begin.line < loc.end.line)
+ ostr << '-' << loc.end.line << '.' << end_col;
+ else if (loc.begin.column < end_col)
+ ostr << '-' << end_col;
return ostr;
}
+]])
+
+b4_defines_if([
+b4_output_begin([b4_dir_prefix[]position.hh])
+b4_copyright([Positions for Bison parsers in C++])[
+
+/**
+ ** \file ]b4_dir_prefix[position.hh
+ ** Define the ]b4_namespace_ref[::position class.
+ */
+
+]b4_cpp_guard_open([b4_dir_prefix[]position.hh])[
+
+# include // std::max
+# include
+# include
+
+]b4_null_define[
+
+]b4_namespace_open[
+]b4_position_define[
]b4_namespace_close[
+]b4_cpp_guard_close([b4_dir_prefix[]position.hh])
+b4_output_end()
+
+
+b4_output_begin([b4_dir_prefix[]location.hh])
+b4_copyright([Locations for Bison parsers in C++])[
+
+/**
+ ** \file ]b4_dir_prefix[location.hh
+ ** Define the ]b4_namespace_ref[::location class.
+ */
+
+]b4_cpp_guard_open([b4_dir_prefix[]location.hh])[
+
+# include "position.hh"
+
+]b4_namespace_open[
+]b4_location_define[
+]b4_namespace_close[
+]b4_cpp_guard_close([b4_dir_prefix[]location.hh])
+b4_output_end()
+])
+
-#endif // not BISON_LOCATION_HH]
-m4_divert_pop(0)
-m4_popdef([b4_copyright_years])dnl
-m4_changecom([#])
+m4_popdef([b4_copyright_years])