163 lines
4.2 KiB
C++
163 lines
4.2 KiB
C++
/* A Bison parser, made by GNU Bison 2.4.3. */
|
|
|
|
/* Positions for Bison parsers in C++
|
|
|
|
Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2009, 2010 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 3 of the License, 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, see <http://www.gnu.org/licenses/>. */
|
|
|
|
/* 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>
|
|
# include <algorithm>
|
|
|
|
|
|
namespace yy {
|
|
|
|
/* Line 38 of location.cc */
|
|
#line 51 "knot_parser/position.hh"
|
|
/// Abstract a position.
|
|
class position
|
|
{
|
|
public:
|
|
|
|
/// Construct a position.
|
|
position ()
|
|
: filename (0), line (1), column (1)
|
|
{
|
|
}
|
|
|
|
|
|
/// Initialization.
|
|
inline void initialize (std::string* fn)
|
|
{
|
|
filename = fn;
|
|
line = 1;
|
|
column = 1;
|
|
}
|
|
|
|
/** \name Line and Column related manipulators
|
|
** \{ */
|
|
public:
|
|
/// (line related) Advance to the COUNT next lines.
|
|
inline void lines (int count = 1)
|
|
{
|
|
column = 1;
|
|
line += count;
|
|
}
|
|
|
|
/// (column related) Advance to the COUNT next columns.
|
|
inline void columns (int count = 1)
|
|
{
|
|
column = std::max (1u, column + count);
|
|
}
|
|
/** \} */
|
|
|
|
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;
|
|
}
|
|
|
|
/// Compare two position objects.
|
|
inline bool
|
|
operator== (const position& pos1, const position& pos2)
|
|
{
|
|
return (pos1.line == pos2.line
|
|
&& pos1.column == pos2.column
|
|
&& (pos1.filename == pos2.filename
|
|
|| (pos1.filename && pos2.filename
|
|
&& *pos1.filename == *pos2.filename)));
|
|
}
|
|
|
|
/// Compare two position objects.
|
|
inline bool
|
|
operator!= (const position& pos1, const position& pos2)
|
|
{
|
|
return !(pos1 == pos2);
|
|
}
|
|
|
|
/** \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;
|
|
}
|
|
|
|
|
|
} // yy
|
|
|
|
/* Line 145 of location.cc */
|
|
#line 162 "knot_parser/position.hh"
|
|
#endif // not BISON_POSITION_HH
|