-2010-11-07 Joel E. Denny <jdenny@clemson.edu>
+2011-01-02 Joel E. Denny <joeldenny@joeldenny.org>
+
+ maint: prepare to use date ranges in copyright notices.
+ * README (Copyright statements): New section explaining the range
+ notation. The GNU coding standards require this explanation. I
+ copied ours from coreutils.
+ * build-aux/update-b4-copyright: Revert 2010-06-17 changes that
+ disabled Bison's automated use of ranges.
+ * cfg.mk (update-copyright-env): Likewise.
+
+2011-01-02 Joel E. Denny <joeldenny@joeldenny.org>
+
+ Correct my email address.
+ * ChangeLog: In all recent entries.
+ * THANKS (Joel E. Denny): Here.
+
+2010-12-19 Joel E. Denny <joeldenny@joeldenny.org>
+
+ doc: cleanup.
+ * NEWS (2.5): Try to sort entries according to how interesting
+ users might find them.
+
+2010-12-19 Joel E. Denny <joeldenny@joeldenny.org>
+
+ doc: cleanup.
+ * NEWS (2.5): Make some minor improvements to wording, and format
+ entries more consistently.
+ * doc/bison.texinfo (Language and Grammar): Point out that IELR
+ and canonical LR are experimental features.
+ (Decl Summary): In list of %define variables, make wording more
+ consistent. Improve discussion of using LALR for GLR.
+
+2010-12-19 Joel E. Denny <joeldenny@joeldenny.org>
+
+ parse.lac: document.
+ * NEWS (2.5): Add entry for LAC, and mention LAC in entry for
+ other corrections to verbose syntax error messages.
+ * doc/bison.texinfo (Decl Summary): Rewrite entries for
+ lr.default-reductions and lr.type to be clearer, to mention
+ %nonassoc's effect on canonical LR, and to mention LAC. Add entry
+ for parse.lac.
+ (Glossary): Add entry for LAC.
+
+2010-12-11 Joel E. Denny <joeldenny@joeldenny.org>
+
+ parse.lac: implement exploratory stack reallocations.
+ * data/yacc.c: Rename %define variable parse.lac.es-capacity to
+ parse.lac.es-capacity-initial. Accept parse.lac.memory-trace
+ with values of "failures" (default) or "full".
+ (b4_declare_parser_state_variables): Add yyesa, yyes, and
+ yyes_capacity variables.
+ (YYSTACK_USE_ALLOCA): Ignore it if LAC requested.
+ (YYSTACK_ALLOC, YYSTACK_FREE, YYSTACK_ALLOC_MAXIMUM): Define if
+ LAC requested.
+ (YYCOPY_NEEDED): New cpp macro.
+ (YYCOPY): Define if LAC requested.
+ (yy_lac_stack_realloc): New function implementing stack
+ reallocations. Use YYMAXDEPTH for maximum stack size given that
+ the stack should never need to grow larger than the main state
+ stack needs to grow without LAC.
+ (YY_LAC_ESTABLISH): Update yy_lac invocation.
+ (yy_lac): Add arguments for exploratory stack memory data
+ recorded in the main parser. Invoke yy_lac_stack_realloc when
+ reallocation is necessary.
+ (yysyntax_error): Add the same new arguments and pass them to
+ yy_lac.
+ (yypstate_delete): Free yyes if necessary.
+ (yyesa, yyes, yyes_capacity): #define these to yypstate members
+ in the case of push parsing.
+ (yyparse, yypush_parse): Initialize yyes and yyes_capacity.
+ Update yysyntax_error invocations. At yyreturn, free yyes if
+ necessary.
+ * src/parse-gram.y: %define parse.lac full.
+ * tests/input.at (LAC: errors for %define): Extend for
+ parse.lac-memory-trace.
+ * tests/regression.at (LAC: Exploratory stack): Extend to check
+ that stack reallocs happen when expected.
+ (LAC: Memory exhaustion): Update to use YYMAXDEPTH and
+ parse.lac.es-capacity-initial.
+
+2010-12-11 Joel E. Denny <joeldenny@joeldenny.org>
+
+ parse.lac: implement as %define variable.
+ LAC = lookahead correction. See discussion at
+ <http://lists.gnu.org/archive/html/bison-patches/2009-09/msg00034.html>.
+ However, one point there must be corrected: because of %nonassoc,
+ LAC is *not* always redundant for lr.type=canonical-lr.
+ * data/yacc.c: Accept values of "none" (default) or "full" for
+ parse.lac. Accept %define parse.lac.es-capacity to specify
+ capacity of LAC's temporary exploratory stack. It defaults to 20
+ and, for now, will not grow dynamically.
+ (b4_lac_flag, b4_lac_if): New m4 macros. Evaluate as true for
+ parse.lac!=none.
+ (YYBACKUP): Invoke YY_LAC_DISCARD.
+ (YY_LAC_ESTABLISH, YY_LAC_DISCARD): New cpp macros that invoke
+ yy_lac and track when it needs to be invoked
+ (yy_lac): New function that, given the current stack, determines
+ whether a token can eventually be shifted. Return status mimics
+ yyparse return status.
+ (yysyntax_error): Change yystate argument to yyssp so stack top
+ can be passed to yy_lac. If LAC is requested, build expected
+ token list by invoking yy_lac for every token instead of just
+ checking the current state for lookaheads. Return 2 if yy_lac
+ exhausts memory.
+ (yyparse, yypush_parse): Use local variable yy_lac_established and
+ cpp macros YY_LAC_ESTABLISH and YY_LAC_DISCARD to implement LAC.
+ Update yysyntax_error invocation. Add yyexhaustedlab code if LAC
+ is requested.
+ * tests/conflicts.at (%nonassoc and eof): Extend to check the
+ effect of each of -Dlr.type=canonical-lr and -Dparse.lac=full.
+ (parse.error=verbose and consistent errors): Likewise.
+ (LAC: %nonassoc requires splitting canonical LR states): New test
+ group demonstrating how LAC can fix canonical LR.
+ * tests/input.at (LAC: Errors for %define): New test group.
+ * tests/regression.at (LAC: Exploratory stack): New test group.
+ (LAC: Memory exhaustion): New test group.
+
+2010-11-21 Joel E. Denny <joeldenny@joeldenny.org>
+
+ build: use gnulib's new bootstrap_sync option.
+ Now, whenever we update bison's copy of gnulib, bootstrap will
+ update itself the next time it's run.
+ * bootstrap: Copy from latest gnulib for bootstrap_sync support.
+ * bootstrap.conf (bootstrap_sync): Set to true.
+ * gnulib: Update to latest so bootstrap is in sync now.
+
+2010-11-07 Joel E. Denny <joeldenny@joeldenny.org>
yysyntax_error: fix for consistent error with lookahead.
* NEWS (2.5): Document.
(AT_BISON_OPTION_POPDEFS): Pop it.
(AT_FULL_COMPILE): Extend to handle Java.
-2010-11-07 Joel E. Denny <jdenny@clemson.edu>
+2010-11-07 Joel E. Denny <joeldenny@joeldenny.org>
yysyntax_error: more preparation for readability of next patch.
There are no behavioral changes here.
* tests/conflicts.at (parse.error=verbose and consistent errors):
Reorganize.
-2010-11-07 Joel E. Denny <jdenny@clemson.edu>
+2010-11-07 Joel E. Denny <joeldenny@joeldenny.org>
yysyntax_error: prepare for readability of next patches.
These are purely whitespace changes that result in ugly code
projects / bison.git / blobdiff