Question

I’m newbie in boost. I have string delimeted with tab ( ‘\t’ ).
How can i parse it with boost::spirit?

parser code from boost’s samples

Answer 1

The boost sample code isn’t the same as the actual boost sample, which was comma delimited, so presumably there are your modifications?

The ascii::space parser will handle the tabs for you as delimiters, so something like:

start %=
    lit("employee")
    >> '{'
    >>  int_ >>
    >>  quoted_string >>
    >>  quoted_string >>
    >>  double_
    >>  '}'
    ;

Should work (minus the ‘lit('\t')‘). But, this will also parse other spacing characters (e.g. space, tab).

If you actually need there to explicitly be single tabs ONLY between the terms, then leave in the lit('\t') and wrap it in a lexeme[] to disable skipping by the skip parser.