+2001-12-27 Akim Demaille <akim@epita.fr>
+
+ Try to make the use of the eoftoken valid. Given that its value
+ is 0 which was also used as a sentinel in ritem, (i) make sure >= 0
+ is used instead of > 0 where appropriate, (ii), depend upon nritems
+ instead of the 0-sentinel.
+
+ * src/gram.h, src/gram.c (nritems): New.
+ Expected to be duplication of nitems, but for the time being...
+ * src/reader.c (packgram): Assert nritems and nitems are equal.
+ * src/LR0.c (allocate_itemsets, new_itemsets): Adjust.
+ * src/closure.c (print_closure, print_fderives): Likewise.
+ * src/gram.c (ritem_print): Likewise.
+ * src/print.c (print_core, print_grammar): Likewise.
+ * src/print_graph.c: Likewise.
+
+2001-12-27 Akim Demaille <akim@epita.fr>
+
+ * src/main.c (main): If there are complains after grammar
+ reductions, then output the report anyway if requested, then die.
+ * src/symtab.c (bucket_new): Initialize `value' to -1, not 0.
+ * src/reader.c (eoftoken): New.
+ (parse_token_decl): If the token being defined has value `0', it
+ is the eoftoken.
+ (packsymbols): No longer hack `tags' to insert `$' by hand.
+ Be sure to preserve the value of the eoftoken.
+ (reader): Make sure eoftoken is defined.
+ Initialize nsyms to 0: now eoftoken is created just like the others.
+ * src/print.c (print_grammar): Don't special case the eof token.
+ * src/regression.at: Adjust: `$' has value 0, not -1, which was a
+ lie anyway, albeit pleasant.
+ * tests/calc.at: Exercise error messages with eoftoken.
+ Change the grammar so that empty input is invalid.
+ Adjust expectations.
+ When yyungeting, be sure to use a valid yylloc: use last_yylloc.
+
+
+2001-12-27 Akim Demaille <akim@epita.fr>
+
+ * configure.in: Check the protos of strchr ans strspn.
+ Replace strchr if needed.
+ * src/system.h: Provide the protos of strchr, strspn and memchr if
+ missing.
+ * lib/strchr.c: New.
+ * src/reader.c (symbols_save): Use strchr.
+
+
+2001-12-27 Akim Demaille <akim@epita.fr>
+
+ * src/print.c, src/print_graph.c (escape): New.
+ Use it to quote the TAGS outputs.
+ * src/print_graph.c (print_state): Now errors are in red, and
+ reductions in green.
+ Prefer high to wide: output the state number on a line of its own.
+
+
+2001-12-27 Akim Demaille <akim@epita.fr>
+
+ * src/state.h, src/state.c (reductions_new): New.
+ * src/LR0.c (set_state_table): Let all the states have a
+ `reductions', even if reduced to 0.
+ (save_reductions): Adjust.
+ * src/lalr.c (initialize_LA, initialize_lookaheads): Adjust.
+ * src/print.c (print_reductions, print_actions): Adjust.
+ * src/output.c (action_row): Adjust.
+
+
+2001-12-27 Akim Demaille <akim@epita.fr>
+
+ * src/state.h, src/state.c (errs_new, errs_dup): New.
+ * src/LR0.c (set_state_table): Let all the states have an errs,
+ even if reduced to 0.
+ * src/print.c (print_errs, print_reductions): Adjust.
+ * src/output.c (output_actions, action_row): Adjust.
+ * src/conflicts.c (resolve_sr_conflict): Adjust.
+
+
+2001-12-27 Akim Demaille <akim@epita.fr>
+
+ * src/lalr.c (set_goto_map, initialize_F): Use SHIFT_SYMBOL.
+
+2001-12-27 Akim Demaille <akim@epita.fr>
+
+ * src/conflicts.c, src/conflicts.h (print_reductions): Move to...
+ * src/print.c: here.
+ (lookaheadset, shiftset): New, used as additional storage by
+ print_reductions.
+ (print_results): Adjust.
+ (print_shifts, print_gotos, print_errs): New, extracted from...
+ (print_actions): here.
+ * src/print_graph.c (print_actions): Remove dead code.
+
+
+2001-12-27 Akim Demaille <akim@epita.fr>
+
+ * src/reader.c (copy_dollar, copy_at): Better checking of `n' in
+ `$n' and `@n'.
+
+
+2001-12-27 Akim Demaille <akim@epita.fr>
+
+ * src/lalr.c (add_lookback_edge): Use state_t instead of ints.
+ (build_relations): Adjust.
+
+
+2001-12-27 Akim Demaille <akim@epita.fr>
+
+ * src/lalr.c (set_goto_map): Remove a wrong but benign loop
+ duplication.
+
+
+2001-12-27 Akim Demaille <akim@epita.fr>
+
+ * src/reader.c (packgram): Catch nitems overflows.
+
+
+2001-12-27 Akim Demaille <akim@epita.fr>
+
+ * src/files.c, src/files.h (guard_obstack): Remove.
+ * src/output.c (output): Adjust.
+ * src/reader.c (parse_braces): New, factoring...
+ (copy_action, copy_guard): these two which are renamed as...
+ (parse_action, parse_guard): these.
+ As a voluntary consequence, using braces around guards is now
+ mandatory.
+
+
+2001-12-27 Akim Demaille <akim@epita.fr>
+
+ * src/gram.h (rule_t): `guard' and `guard_line' are new members.
+ * src/reader.c (symbol_list): `guard' and `guard_line' are new
+ members.
+ (symbol_list_new): Adjust.
+ (copy_action): action_line is the first line, not the last.
+ (copy_guard): Just as for actions, store the `action' only, not
+ the switch/case/break flesh.
+ Don't parse the user action that might follow the guard, let...
+ (readgram): do it, i.e., now, there can be an action after a
+ guard.
+ In other words the guard is just explicitly optional.
+ (packgram): Adjust.
+ * src/output.c (guards_output): New.
+ (output_parser): Call it when needed.
+ (output): Also free the guard and attrs obstacks.
+ * src/files.c, src/files.h (obstack_save): Remove.
+ (output_files): Remove.
+ As a result, if one needs the former `.act' file, using an
+ appropriate skeleton which requires actions and guards is now
+ required.
+ * src/main.c (main): Adjust.
+ * tests/semantic.at: New.
+ * tests/regression.at: Use `input.y' as input file name.
+ Avoid 8+3 problems by requiring input.c when the test needs the
+ parser.
+
+2001-12-27 Akim Demaille <akim@epita.fr>
+
+ * src/reader.c (symbol_list_new): Be sure to initialize all the
+ fields.
+
+2001-12-27 Akim Demaille <akim@epita.fr>
+
+ All the hacks using a final pseudo state are now useless.
+
+ * src/LR0.c (set_state_table): state_table holds exactly nstates.
+ * src/lalr.c (nLA): New.
+ (initialize_LA, compute_lookaheads, initialize_lookaheads): Use it
+ instead of lookaheadsp from the pseudo state (nstate + 1).
+
+2001-12-27 Akim Demaille <akim@epita.fr>
+
+ * src/output.c (action_row, token_actions): Use a state_t instead
+ of a integer, and nlookaheads instead of the following state's
+ lookaheadsp.
+
+
+2001-12-27 Akim Demaille <akim@epita.fr>
+
+ * src/conflicts.c (log_resolution, flush_shift)
+ (resolve_sr_conflict, set_conflicts, solve_conflicts)
+ (count_sr_conflicts, count_rr_conflicts, conflicts_output)
+ (conflicts_print, print_reductions): Use a state_t instead of an
+ integer when referring to a state.
+ As much as possible, depend upon nlookaheads, instead of the
+ `lookaheadsp' member of the following state (since lookaheads of
+ successive states are successive, the difference between state n + 1
+ and n served as the number of lookaheads for state n).
+ * src/lalr.c (add_lookback_edge): Likewise.
+ * src/print.c (print_core, print_actions, print_state)
+ (print_results): Likewise.
+ * src/print_graph.c (print_core, print_actions, print_state)
+ (print_graph): Likewise.
+ * src/conflicts.h: Adjust.
+
+2001-12-27 Akim Demaille <akim@epita.fr>
+
+ * src/bison.hairy: Formatting/comment changes.
+ ANSIfy.
+ Remove `register' indications.
+ Add plenty of `static'.
+
+2001-12-27 Akim Demaille <akim@epita.fr>
+
+ * src/output.c (prepare): Drop the muscle `ntbase' which
+ duplicates ntokens.
+ * src/bison.simple: Formatting/comment changes.
+ Use YYNTOKENS only, which is documented, but not YYNTBASE, which
+ is an undocumented synonym.
+
+
+2001-12-22 Akim Demaille <akim@epita.fr>
+
+ * src/output.c (output_table_data): Change the prototype to use
+ `int' for array ranges: some invocations do pass an int, not a
+ short.
+ Reported by Wayne Green.
+
2001-12-22 Akim Demaille <akim@epita.fr>
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projects / bison.git / blobdiff