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Diffstat (limited to 'buildtools/lib/parsers/qmake/position.hh')
-rw-r--r-- | buildtools/lib/parsers/qmake/position.hh | 142 |
1 files changed, 142 insertions, 0 deletions
diff --git a/buildtools/lib/parsers/qmake/position.hh b/buildtools/lib/parsers/qmake/position.hh new file mode 100644 index 00000000..704f0df4 --- /dev/null +++ b/buildtools/lib/parsers/qmake/position.hh @@ -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 QMake::position class. + */ + +#ifndef BISON_POSITION_HH +# define BISON_POSITION_HH + +# include <iostream> +# include <string> + +namespace QMake +{ + /// 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 |