Manual

102 Bison 2.3
10.1.3 C++ Location Values
When the directive %locations is used, the C++ parser supports location tracking, see
Section 3.6 [Locations Overview], page 51. Two auxiliary classes define a position, a
single point in a file, and a location, a range composed of a pair of positions (possibly
spanning several files).
std::string* file
[Method on position]
The name of the file. It will always be handled as a pointer, the parser will never
duplicate nor deallocate it. As an experimental feature you may change it to ‘type*’
using ‘%define "filename_type" "type"’.
unsigned int line
The line, starting at 1.
unsigned int lines (int height = 1)
Advance by height lines, resetting the column number.
unsigned int column
The column, starting at 0.
[Method on position]
[Method on position]
[Method on position]
unsigned int columns (int width = 1)
[Method on position]
Advance by width columns, without changing the line number.
position& operator+= (position& pos, int width )
position operator+ (const position& pos, int width )
position& operator-= (const position& pos, int width )
position operator- (position& pos, int width )
Various forms of syntactic sugar for columns.
[Method on position]
[Method on position]
[Method on position]
[Method on position]
position operator