v4 parser: adding position.hh for people who have an old bison
git-svn-id: https://www.dynare.org/svn/dynare/dynare_v4@1177 ac1d8469-bf42-47a9-8791-bf33cf982152time-shift
parent
4bc9ebeeb6
commit
ba57343ac3
|
@ -0,0 +1,142 @@
|
|||
/* A Bison parser, made by GNU Bison 2.3. */
|
||||
|
||||
/* Positions 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 position.hh
|
||||
** Define the yy::position class.
|
||||
*/
|
||||
|
||||
#ifndef BISON_POSITION_HH
|
||||
# define BISON_POSITION_HH
|
||||
|
||||
# include <iostream>
|
||||
# include <string>
|
||||
|
||||
namespace yy
|
||||
{
|
||||
/// Abstract a position.
|
||||
class position
|
||||
{
|
||||
public:
|
||||
|
||||
/// Construct a position.
|
||||
position ()
|
||||
: filename (0), line (1), column (0)
|
||||
{
|
||||
}
|
||||
|
||||
|
||||
/// Initialization.
|
||||
inline void initialize (std::string* fn)
|
||||
{
|
||||
filename = fn;
|
||||
line = 1;
|
||||
column = 0;
|
||||
}
|
||||
|
||||
/** \name Line and Column related manipulators
|
||||
** \{ */
|
||||
public:
|
||||
/// (line related) Advance to the COUNT next lines.
|
||||
inline void lines (int count = 1)
|
||||
{
|
||||
column = 0;
|
||||
line += count;
|
||||
}
|
||||
|
||||
/// (column related) Advance to the COUNT next columns.
|
||||
inline void columns (int count = 1)
|
||||
{
|
||||
int leftmost = 0;
|
||||
int current = column;
|
||||
if (leftmost <= current + count)
|
||||
column += count;
|
||||
else
|
||||
column = 0;
|
||||
}
|
||||
/** \} */
|
||||
|
||||
public:
|
||||
/// File name to which this position refers.
|
||||
std::string* filename;
|
||||
/// Current line number.
|
||||
unsigned int line;
|
||||
/// Current column number.
|
||||
unsigned int column;
|
||||
};
|
||||
|
||||
/// Add and assign a position.
|
||||
inline const position&
|
||||
operator+= (position& res, const int width)
|
||||
{
|
||||
res.columns (width);
|
||||
return res;
|
||||
}
|
||||
|
||||
/// Add two position objects.
|
||||
inline const position
|
||||
operator+ (const position& begin, const int width)
|
||||
{
|
||||
position res = begin;
|
||||
return res += width;
|
||||
}
|
||||
|
||||
/// Add and assign a position.
|
||||
inline const position&
|
||||
operator-= (position& res, const int width)
|
||||
{
|
||||
return res += -width;
|
||||
}
|
||||
|
||||
/// Add two position objects.
|
||||
inline const position
|
||||
operator- (const position& begin, const int width)
|
||||
{
|
||||
return begin + -width;
|
||||
}
|
||||
|
||||
/** \brief Intercept output stream redirection.
|
||||
** \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)
|
||||
{
|
||||
if (pos.filename)
|
||||
ostr << *pos.filename << ':';
|
||||
return ostr << pos.line << '.' << pos.column;
|
||||
}
|
||||
|
||||
}
|
||||
#endif // not BISON_POSITION_HH
|
Loading…
Reference in New Issue