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* data/lalr1.cc (position.hh): Make sure "columns" never pushes

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before initial_columns.
(location.hh): Use consistent variable names when defining the
operator<<.
Use "last" so that we subtract from Positions, not from unsigned.
This commit is contained in:
Akim Demaille
2003-02-20 14:42:43 +00:00
parent 5d00311619
commit 2cdc240eeb
2 changed files with 23 additions and 11 deletions
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26
data/lalr1.cc
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@@ -923,7 +923,10 @@ namespace yy
/** \brief (column related) Advance to the COLUMNS next columns. */
inline void columns (int columns = 1)
{
column += columns;
if (int (initial_column) < columns + int (column))
column += columns;
else
column = initial_column;
}
/** \} */
@@ -1068,19 +1071,20 @@ namespace yy
/** \brief Intercept output stream redirection.
** \param ostr the destination output stream
** \param pos a reference to the Position to redirect
** \param loc a reference to the Location to redirect
**
** Don't issue twice the line number when the location is on a single line.
** Avoid duplicate information.
*/
inline std::ostream& operator<< (std::ostream& ostr, const Location& pos)
inline std::ostream& operator<< (std::ostream& ostr, const Location& loc)
{
ostr << pos.begin;
if (pos.begin.filename != pos.end.filename)
ostr << '-' << pos.end - 1;
else if (pos.begin.line != pos.end.line)
ostr << '-' << pos.end.line << '.' << pos.end.column - 1;
else if (pos.begin.column != pos.end.column - 1)
ostr << '-' << pos.end.column - 1;
Position last = loc.end - 1;
ostr << loc.begin;
if (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;
}