parser.rb
These are important methods which you must implement in your parser code (inner).
- next_token
-
yylex in yacc. This method must returns Array like [token, value].
token is Ruby simbol (Fixnum) or String, as default.
- on_error( err_tok, err_val, _tokens, _values, _states )
-
err_tok is token simbol on error, err_val is its value.
Rest is system stacks.
Copyright(c) 1998-1999 Minero Aoki
<aamine@dp.u-netsurf.ne.jp>