Akim Demaille [Tue, 28 May 2002 09:53:35 +0000 (09:53 +0000)]
* data/bison.c++: Catch up with bison.simple:
2002-05-24 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
and Paul Eggert <eggert@twinsun.com>: `error' handing.
2002-05-26 Akim Demaille <akim@epita.fr>: stos_, token_number_,
and popping traces.
Paul Hilfinger [Mon, 27 May 2002 22:33:54 +0000 (22:33 +0000)]
* src/output.c (output_skeleton): Put an explicit path in front of
the skeleton file name, rather than relying on the -I directory,
to partially alleviate effects of having a skeleton file lying around
in the current directory.
Akim Demaille [Sun, 26 May 2002 20:25:52 +0000 (20:25 +0000)]
* src/state.h (state_t): `solved_conflicts' is a new member.
* src/LR0.c (new_state): Set it to 0.
* src/conflicts.h, src/conflicts.c (print_conflicts)
(free_conflicts, solve_conflicts): Rename as...
(conflicts_print, conflicts_free, conflicts_solve): these.
Adjust callers.
* src/conflicts.c (enum conflict_resolution_e)
(solved_conflicts_obstack): New, used by...
(log_resolution): this.
Adjust to attach the conflict resolution to each state.
Complete the description with the precedence/associativity
information.
(resolve_sr_conflict): Adjust.
* src/print.c (print_state): Output its solved_conflicts.
* tests/conflicts.at (Unresolved SR Conflicts)
(Solved SR Conflicts): Exercise --report=all.
Akim Demaille [Sun, 26 May 2002 18:38:41 +0000 (18:38 +0000)]
* tests/calc.at (AT_CHECK_CALC): Adjust: there are now additional
`Error:' lines.
* data/bison.simple (yystos) [YYDEBUG]: New.
(yyparse) [YYDEBUG]: Display the symbols which are popped during
error recovery.
* tests/regression.at (Web2c Actions): Adjust: yystos is output now.
Akim Demaille [Sat, 25 May 2002 16:12:40 +0000 (16:12 +0000)]
* doc/bison.texinfo (Debugging): Split into...
(Tracing): this new section, its former contents, and...
(Understanding): this new section.
* src/getargs.h, src/getargs.c (verbose_flag): Remove, replaced
by...
(report_flag): this.
Adjust all dependencies.
(report_args, report_types, report_argmatch): New.
(usage, getargs): Report/support -r, --report.
* src/options.h
(struct option_table_struct): Rename as..,
(struct option_table_s): this.
Rename the `set_flag' member to `flag' to match with getopt_long's
struct.
* src/options.c (option_table): Split verbose into an entry for
%verbose, and another for --verbose.
Support --report/-r, so remove -r from the obsolete --raw.
* src/print.c: Attach full item sets and lookaheads reports to
report_flag instead of trace_flag.
* lib/argmatch.h, lib/argmatch.c: New, from Fileutils 4.1.
Paul Eggert [Fri, 24 May 2002 12:45:23 +0000 (12:45 +0000)]
* data/bison.simple (yyparse): Correct error handling to conform to
POSIX and yacc. Specifically, after syntax error is discovered,
do not reduce further before shifting the error token.
Clean up the code a bit by removing the labels yyerrdefault,
yyerrhandle, yyerrpop.
* NEWS: Document the above.
Paul Eggert [Fri, 24 May 2002 12:37:12 +0000 (12:37 +0000)]
(yyparse): Correct error handling to conform to
POSIX and yacc. Specifically, after syntax error is discovered,
do not reduce further before shifting the error token.
Clean up the code a bit by removing the labels yyerrdefault,
yyerrhandle, yyerrpop.
Paul Hilfinger [Mon, 20 May 2002 22:56:53 +0000 (22:56 +0000)]
* data/bison.simple (yyr1): Don't use yy_token_number_type as element
type; it isn't always big enough, since it doesn't necessarily
include non-terminals.
(yytranslate): Expand definition of yy_token_number_type, so that
the latter can be removed.
(yy_token_number_type): Remove, only one use.
* data/bison.c++ (r1_): Parallel change to yyr1 in bison.simple---
don't use TokenNumberType as element type.
* tests/regression.at: Modify expected output to agree with change
to yyr1 and yytranslate.
Akim Demaille [Tue, 7 May 2002 08:07:32 +0000 (08:07 +0000)]
Kill GCC warnings.
* src/reduce.c (nonterminals_reduce): Don't loop over RITEM: loop
over the RHS of each rule.
* src/gram.h, src/gram.c (nritems): Is `unsigned int', not int.
* src/state.h (state_t): Member `nitems' is unsigned short.
* src/LR0.c (get_state): Adjust.
* src/reader.c (packgram): Likewise.
* src/output.c (GENERATE_MUSCLE_INSERT_TABLE): `max' is of type
`Type'.
(muscle_insert_int_table): Remove, unused.
(prepare_rules): Remove `max'.
Akim Demaille [Mon, 6 May 2002 08:23:41 +0000 (08:23 +0000)]
* src/LR0.c (new_state, get_state): Instead of using the global
`kernel_size' and `kernel_base', have two new arguments:
`core_size' and `core'.
Adjust callers.
Akim Demaille [Sun, 5 May 2002 11:56:49 +0000 (11:56 +0000)]
New experimental feature: display the lookaheads in the report and
graph.
* src/print (print_core): When --trace-flag, display the rules
lookaheads.
* src/print_graph.c (print_core): Likewise.
Swap the arguments.
Adjust caller.
Akim Demaille [Sun, 5 May 2002 11:56:06 +0000 (11:56 +0000)]
* src/output.c (output_unsigned_int_table): New.
(prepare_rules): `i' is unsigned.
`prhs', `rline', `r2' are unsigned int.
Rename muscle `rhs_number_max' as `rhs_max'.
Output muscles `prhs_max', `rline_max', and `r2_max'.
Free rline and r1.
* data/bison.simple, data/bison.c++: Adjust to use these muscles
to compute types instead of constant types.
* tests/regression.at (Web2c Actions): Adjust.
Akim Demaille [Fri, 3 May 2002 08:42:48 +0000 (08:42 +0000)]
* data/bison.simple (b4_token_enum): New.
(b4_token_defines): Use it to output tokens both as #define and
enums.
Suggested by Paul Eggert.
* src/output.c (token_definitions_output): Don't output spurious
white spaces.
Akim Demaille [Thu, 2 May 2002 14:33:48 +0000 (14:33 +0000)]
* src/reader.c (copy_at, copy_dollarm parse_braces, parse_action)
(parse_guard): Rename the formal argument `stack_offset' as
`rule_length', which is more readable.
Adjust callers.
(copy_at, copy_dollar): Instead of outputting the hard coded
values of $$, $n and so forth, output invocation to b4_lhs_value,
b4_lhs_location, b4_rhs_value, and b4_rhs_location.
* data/bison.simple, data/bison.c++ (b4_lhs_value)
(b4_lhs_location, b4_rhs_value, and b4_rhs_location: New.
Robert Anisko [Thu, 25 Apr 2002 14:36:38 +0000 (14:36 +0000)]
* src/scan-skel.l: Postprocess quadrigraphs.
* src/reader.c (copy_character): New function, used to output
single characters while replacing `[' and `]' with quadrigraphs, to
avoid troubles with M4 quotes.
(copy_comment): Output characters with copy_character.
(read_additionnal_code): Likewise.
(copy_string2): Likewise.
(copy_definition): Likewise.
* tests/calc.at: Exercise M4 quoting.
Robert Anisko [Wed, 24 Apr 2002 16:22:57 +0000 (16:22 +0000)]
* tests/calc.at: Exercise prologue splitting.
* data/bison.simple, data/bison.c++: Use `b4_pre_prologue' and
`b4_post_prologue' instead of `b4_prologue'.
* src/output.c (prepare): Add the `pre_prologue' and `post_prologue'
muscles.
(output): Free pre_prologue_obstack and post_prologue_obstack.
* src/files.h, src/files.c (attrs_obstack): Remove.
(pre_prologue_obstack, post_prologue_obstack): New.
* src/reader.c (copy_definition): Add a parameter to specify the
obstack to fill, instead of using attrs_obstack unconditionally.
(read_declarations): Pass pre_prologue_obstack to copy_definition if
`%union' has not yet been seen, pass post_prologue_obstack otherwise.
Paul Eggert [Wed, 24 Apr 2002 05:56:13 +0000 (05:56 +0000)]
* data/bison.simple: Remove unnecessary commentary and white
space differences from 1_29-branch.
Depend on YYERROR_VERBOSE, not defined (YYERROR_VERBOSE).
(union yyalloc, YYSTACK_GAP_MAX, YYSTACK_BYTES, YYCOPY,
YYSTACK_RELOCATE): Do not define if yyoverflow is defined, or
if this is a C++ parser and YYSTYPE or YYLTYPE has nontrivial
constructors or destructors.
(yyparse) [! defined YYSTACK_RELOCATE]: Do not relocate the stack.
Paul Eggert [Wed, 24 Apr 2002 05:55:48 +0000 (05:55 +0000)]
Remove unnecessary commentary and white space differences from
1_29-branch. Depend on YYERROR_VERBOSE, not defined (YYERROR_VERBOSE).
(union yyalloc, YYSTACK_GAP_MAX, YYSTACK_BYTES, YYCOPY,
YYSTACK_RELOCATE): Do not define if yyoverflow is defined, or
if this is a C++ parser and YYSTYPE or YYLTYPE has nontrivial
constructors or destructors.
(yyparse) [! defined YYSTACK_RELOCATE]: Do not relocate the stack.
* tests/sets.at (AT_EXTRACT_SETS): Don't use 8 char long sed labels.
* tests/synclines.at (AT_TEST_SYNCLINE): Be robust to GCC's
location with columns.
* tests/conflicts.at (%nonassoc and eof): Don't use `error.h'.
All reported by Paul Eggert.
* src/reduce.c (dump_grammar): Move to...
* src/gram.h, src/gram.c (grammar_dump): here.
Be sure to separate long item numbers.
Don't read the members of a rule's prec if its nil.
* src/output.c (table_size, table_grow): New.
(MAXTABLE): Remove, replace uses with table_size.
(pack_vector): Instead of dying when the table is too big, grow it.
* src/reader.c (token_translations_init): 256 is now the default
value for the error token, i.e., it will be assigned another
number if the user assigned 256 to one of her tokens.
(reader): Don't force 256 to error.
* doc/bison.texinfo (Symbols): Adjust.
* tests/torture.at (AT_DATA_HORIZONTAL_GRAMMAR)
(AT_DATA_TRIANGULAR_GRAMMAR): Number the tokens as 1, 2, 3
etc. instead of 10, 20, 30 (which was used to `jump' over error
(256) and undefined (2)).
* doc/bison.texinfo (Actions): Make clear that `|' is not the same
as Lex/Flex'.
(Debugging): More details about enabling the debugging features.
(Table of Symbols): Describe $$, $n, @$, and @n.
Suggested by Tim Josling.