Bison's `allocate.c' and `alloc.h'. This patch was surprisingly
difficult and introduced a lot of core dump. It turns out that
Bison used an implementation of `xmalloc' based on `calloc', and
at various places it does depend upon the initialization to 0. I
have not tried to isolate the pertinent places, and all the former
calls to Bison's `xmalloc' are now using `XCALLOC'. Someday,
someone should address this issue.
* src/allocate.c, src/alloc.h, m4/bison-decl.m4: Remove.
* lib/xmalloc.c, lib/xalloc.h, m4/malloc.m4, m4/realloc.m4: New
files.
Adjust dependencies.
* src/warshall.h: New file.
Propagate.
(first_reduction): Move their exportation from here...
* src/LR0.h: to here.
Adjust dependencies.
* src/getargs.c (statisticsflag): New variable.
Add support for `--statistics'.
Adjust dependencies.
Remove a lot of now useless `extern' statements in most files.
Propagate its use.
* src/print.c: Formatting and ordering changes.
(verbose, terse): Replace with...
(print_results): this new function.
Adjust dependencies.
defined as a `int[]' in `reader.c'. For consistency with the
other output tables, `user_toknums' is now defined as a table of
shorts.
* src/reader.c (user_toknums): Be a short table instead of an int
table.
Adjust dependencies.
Factor the short table outputs.
* src/output.c (output_short_table): New function.
* src/output.c (output_gram, output_stos, output_rule_data)
(output_base, output_table, output_check): Use it.
order to get rid of the `static' prototypes.
No longer use `register'.
* src/output.h: New file.
Propagate its inclusion in files explicitly prototyping functions
from output.c.
inclusion.
Don't define PARAMS.
* src/system.h: Define PARAMS.
Remove some of the ad-hoc CPP magic for DOS, VMS etc.: this is the
purpose of config.h. system.h must not try to fix wrong
definitions in config.h.
* tests/calc.m4 (_AT_DATA_CALC_Y, AT_DATA_CALC_Y, _AT_CHECK_CALC)
(AT_CHECK_CALC): New macros.
Use these macros to test bison with options `', `--raw',
`--debug', `--yacc', `--yacc --debug'.
* src/machine.h: Remove, leaving its contents in...
* src/system.h: here.
Include stdio.h.
Adjust all dependencies on stdio.h and machine.h.
* src/getargs.h: New file.
Let all `extern' declarations about getargs.c be replaced with
inclusion of `getargs.h'.
* src/Makefile.am (noinst_HEADERS): Adjust.
* tests/calc.m4 (yyin): Be initialized in main, not on the global
scope.
(yyerror): Returns void, not int.
* doc/bison.texinfo: Formatting changes.
* src/bison.s1 (yyparse): Condition the code using `yytname' which
is defined only when YYDEBUG is.
* m4/atconfig.m4 (AT_CONFIG): Adjust to Autoconf 2.13.
* src/files.c (tryopen, tryclose): Formatting changes.
Move to the top and be static.
* src/reader.c (read_signed_integer): Likewise.
* tests/calc.m4: New file.
* Makefile.am, suite.m4: Adjust.
* m4/atconfig.m4: Set BISON_SIMPLE and BISON_HAIRY.
* m4/m4.m4, m4/atconfig.m4: New files.
* m4/Makefile.am (EXTRA_DIST): Adjust.
* tests/suite.m4, tests/Makefile.am, tests/atgeneral.m4: New
files.
* src/getargs.c: Display a more standard --version message.
* src/reader.c (reader): Formatting changes.
No longer depend upon VERSION_STRING.
* configure.in: No longer use `dnl'.
Set up the test suite and the new directory `tests/.
(VERSION_STRING): Remove.
`copy_comment', but outputs into two FILE *.
(copy_comment): Use it.
(parse_union_decl): Use it.
(get_type, parse_start_decl): Use the same `invalid' message.
(parse_start_decl, parse_union_decl): Use the same `multiple'
message.
(parse_union_decl, copy_guard, copy_action): Use the same
`unmatched' message.
* m4/Makefile.am (EXTRA_DIST): Add `warning.m4'.
There is now a pseudo variable @$ (readble and writable), location
of the lhs of the rule (by default ranging from the location of
the first symbol of the rhs, to the location of the last symbol,
or, if the rhs is empty, YYLLOC).
* src/bison.s1 [YYLSP_NEEDED] (yyloc): New variable, twin of
yyval.
(yyparse): When providing a default semantic action, provide a
default location action.
(after the $): No longer change `*YYLSP', just stack YYLOC the
same way you stack YYVAL.
* src/reader.c (read_declarations): Use warns.
(copy_guard, case '@'): Also recognize `@$', expanded as `YYLOC'.
(copy_action, case '@'): Likewise.
Use a standard error message, to save useless work from
translators.
remove most `#if YYDEBUG != 0', since `if (yydebug)' is enough.
One `#if YYDEBUG' remains, since it uses variables which are
defined only if `YYDEBUG != 0'.
