default reduction.
Reported by Charles-Henry de Boysson.
* tests/calc.at (_AT_CHECK_CALC, _AT_CHECK_CALC_ERROR): Don't
check the length of the traces when %glr.
(_AT_CHECK_CALC_ERROR): Also skip `^Stack' lines, coming from
GLR's traces.
(AT_CHECK_CALC_LALR, AT_CHECK_CALC_GLR): New.
Test GLR parsers.
* data/glr.c (YYLEFTMOST_STATE): Fix its value.
(yyltype): Remove the yy prefix from the member names.
(yytable): Complete its comment.
(yygetLRActions): Map error action number from YYTABLE from
YYTABLE_NINF to 0.
(yyisErrorAction): No longer compare YYACTION to YYPACT_NINF
(which was a bug: it should have been YYTABEL_NINF, and yet it was
not satisfying as we could compare an YYACTION computed from
YYDEFACT to YYTABLE_NINF although they are unrelated): 0 is the
only value for error actions.
(yyreportParseError): In verbose parse error messages, don't issue
`error' in the list of expected tokens.
* data/yacc.c (yyparse) <yybackup>: Rewrite the decoding of the
next action to perform to match glr.c's decoding.
(yytable): Complete its comment.
(yyparse): here. This undoes some of the 2002-07-25 change.
Compatibility problem reported by Ralf S. Engelschall with
OSSP cfg <http://www.ossp.org/pkg/lib/cfg/>.
expected token.
* tests/actions.at (Printers and Destructors): Adjust.
* tests/calc.at (Calculator $1): Adjust.
* data/yacc.c, data/glr.c, data/lalr1.c: When making the verbose
error message, do not report the parser accepts the error token in
that state.
yycontrol without making too strong assumptions on the parser
itself.
* src/output.c (prepare_tokens): Use the real 0th value of
token_translations instead of `0'.
* src/parse-gram.y (yyerror): Don't rely on yycontrol being
visible here.
* data/yacc.c (yyreport_parse_error): Rename yylocation as yylloc
for the time being: %locations ought to provide it to yyerror.
(b4_c_knr_arg_names, b4_c_knr_arg_name, b4_c_knr_arg_decls)
(b4_c_knr_arg_decl): New.
* data/yacc.c: Use it to define yysymprint, yydestruct, and
yyreport_parse_error.
(save_column): sp, sp1, and sp2 are state_number_t.
(prepare): Rename `final' as `final_state_number', `nnts' as
`nterms_number', `nrules' as `rules_number', `nstates' as
`states_number', and `ntokens' as `tokens_number'. Remove `nsym',
unused.
* data/yacc.c, data/glr.c, data/lalr1.cc: Adjust.
* data/lalr1.cc (nsym_): Remove, unused.
