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+/* A Bison parser, made by GNU Bison 2.3. */
+
+/* Locations for Bison parsers in C++
+
+ Copyright (C) 2002, 2003, 2004, 2005, 2006 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
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
+
+/* As a special exception, you may create a larger work that contains
+ part or all of the Bison parser skeleton and distribute that work
+ under terms of your choice, so long as that work isn't itself a
+ parser generator using the skeleton or a modified version thereof
+ as a parser skeleton. Alternatively, if you modify or redistribute
+ the parser skeleton itself, you may (at your option) remove this
+ special exception, which will cause the skeleton and the resulting
+ Bison output files to be licensed under the GNU General Public
+ License without this special exception.
+
+ This special exception was added by the Free Software Foundation in
+ version 2.2 of Bison. */
+
+/**
+ ** \file location.hh
+ ** Define the QMake::location class.
+ */
+
+#ifndef BISON_LOCATION_HH
+# define BISON_LOCATION_HH
+
+# include <iostream>
+# include <string>
+# include "position.hh"
+
+namespace QMake
+{
+
+ /// Abstract a location.
+ class location
+ {
+ public:
+
+ /// Construct a location.
+ location ()
+ : begin (), end ()
+ {
+ }
+
+
+ /// Initialization.
+ inline void initialize (std::string* fn)
+ {
+ begin.initialize (fn);
+ end = begin;
+ }
+
+ /** \name Line and Column related manipulators
+ ** \{ */
+ public:
+ /// Reset initial location to final location.
+ inline void step ()
+ {
+ begin = end;
+ }
+
+ /// Extend the current location to the COUNT next columns.
+ inline void columns (unsigned int count = 1)
+ {
+ end += count;
+ }
+
+ /// Extend the current location to the COUNT next lines.
+ inline void lines (unsigned int count = 1)
+ {
+ end.lines (count);
+ }
+ /** \} */
+
+
+ public:
+ /// Beginning of the located region.
+ position begin;
+ /// End of the located region.
+ position end;
+ };
+
+ /// Join two location objects to create a location.
+ inline const location operator+ (const location& begin, const location& end)
+ {
+ location res = begin;
+ res.end = end.end;
+ return res;
+ }
+
+ /// Add two location objects.
+ inline const location operator+ (const location& begin, unsigned int width)
+ {
+ location res = begin;
+ res.columns (width);
+ return res;
+ }
+
+ /// Add and assign a location.
+ inline location& operator+= (location& res, unsigned int width)
+ {
+ res.columns (width);
+ return res;
+ }
+
+ /** \brief Intercept output stream redirection.
+ ** \param ostr the destination output stream
+ ** \param loc a reference to the location to redirect
+ **
+ ** Avoid duplicate information.
+ */
+ inline std::ostream& operator<< (std::ostream& ostr, const location& loc)
+ {
+ position last = loc.end - 1;
+ ostr << loc.begin;
+ if (last.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;
+ return ostr;
+ }
+
+}
+
+#endif // not BISON_LOCATION_HH