+2006-06-24 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ Fix bug that mistakes braced code in a declaration in the rules section
+ to be a rule action. Mentioned at
+ <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00105.html>.
+ * src/scan-gram.l: Move midrule action detection from the start of the
+ scanning of any braced code to...
+ * src/parse-gram.y (rhs): ... the parsing of braced code as a rule
+ action. For readability, use $2 and @2 rather than the equivalent
+ global variables.
+ * tests/regression.at (Braced code in declaration in rules section):
+ New test to catch the error fixed by the above patch.
+
+ Work on code readability some.
+ * src/scan-code.l (current_rule): Get rid of this misleading and
+ redundant declaration: it's actually extern'ed in reader.h.
+ (YY_DECL, code_lex, handle_action_dollar, handle_action_at,
+ translate_action): Add a rule argument and use it instead of the global
+ current_rule.
+ (translate_rule_action): This already receives current_rule through an
+ argument, so pass it on to translate_action instead of assigning
+ current_rule to current_rule.
+ (translate_symbol_action, translate_code): Pass rule = NULL to
+ translate_action.
+
+2006-06-23 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ Rename %before-definitions to %start-header and %after-definitions to
+ %end-header. Don't use these declarations to separate pre-prologue
+ blocks from post-prologue blocks. Add new order-independent
+ declarations %before-header and %after-header as alternatives to the
+ traditional Yacc pre-prologue and post-prologue blocks. Discussed at
+ <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00110.html>.
+ * NEWS (2.3+): Update for these changes.
+ * data/glr.c (b4_before_definitions): Update to...
+ (b4_start_header): ... this.
+ (b4_after_definitions): Update to...
+ (b4_end_header): ... this.
+ * data/glr.cc: Likewise.
+ * data/lalr1.cc: Likewise.
+ * data/yacc.c: Likewise.
+ * doc/bison.texinfo (The prologue): Update names, and replace remaining
+ prologue blocks with %*-header declarations.
+ (Calc++ Parser): Likewise.
+ (Bison Declaration Summary): Update names.
+ (Bison Symbols): Update description.
+ * src/parse-gram.y (PERCENT_AFTER_DEFINITIONS): Update to...
+ (PERCENT_END_HEADER): ... this.
+ (PERCENT_BEFORE_DEFINITIONS): Update to...
+ (PERCENT_START_HEADER): ... this.
+ (PERCENT_AFTER_HEADER, PERCENT_BEFORE_HEADER): New tokens.
+ (declaration): Update token names and m4 macro names.
+ When parsing %end-header and %start-header, invoke translate_code
+ before muscle_code_grow, and no longer set global booleans to remember
+ whether these declarations have been seen.
+ Parse new %after-header and %before-header.
+ * src/reader.c (before_definitions, after_definitions): Remove.
+ (prologue_augment): Accept a new bool argument to specify whether to
+ augment the pre-prologue or post-prologue.
+ * src/reader.h (before_definitions, after_definitions): Remove these
+ extern's.
+ (prologue_augment): Add new bool argument.
+ * src/scan-gram.l (PERCENT_AFTER_DEFINITIONS): Update to...
+ (PERCENT_END_HEADER): ... this.
+ (PERCENT_BEFORE_DEFINITIONS): Update to...
+ (PERCENT_START_HEADER): ... this.
+ (PERCENT_AFTER_HEADER, PERCENT_BEFORE_HEADER): New tokens.
+ * tests/actions.at (Printers and Destructors): Update names.
+
+2006-06-22 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ Add comparison operators for C++ location classes. Discussed at
+ <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00092.html>.
+ * data/c++.m4 (b4_define_location_comparison): New boolean %define
+ declaration indicating whether filename_type has an operator==. If
+ filename_type is `std::string', it defaults to `1', `0' otherwise.
+ * data/location.cc: Iff b4_define_location_comparison is `1', add
+ operator== and operator!= for class position and for class location.
+
+ Some minor fixes.
+ * src/scan-action.l: Remove unused file.
+ * src/symtab.c (symbol_printer_set): Use printer_location not
+ destructor_location.
+ * src/symtab.h (struct symbol): Replace incorrect source comment for
+ printer members.
+ * tests/input.at (Incompatible Aliases): Update output with correct
+ printer location.
+
+2006-06-20 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ Don't put the pre-prologue in the header file. For the yacc.c code
+ file and the glr.c header and code files, move the pre-prologue before
+ the token definitions. Add new %before-definitions and
+ %after-definitions to declare code that will go in both the header file
+ and code file. Discussed at
+ <http://lists.gnu.org/archive/html/bison-patches/2005-12/msg00000.html>,
+ <http://lists.gnu.org/archive/html/bison-patches/2006-01/msg00016.html>,
+ and
+ <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00055.html>.
+ * NEWS (2.3+): Describe these changes.
+ * data/glr.c (b4_pre_prologue): Move from within to before...
+ (b4_shared_declarations): ... this.
+ Add new b4_before_definitions before b4_token_enums.
+ Add new b4_after_definitions at the end.
+ * data/glr.cc (b4_pre_prologue): Replace with...
+ (b4_before_definitions): ... this in the header file.
+ (b4_after_definitions): New near the end of the header file.
+ * data/lalr1.cc (b4_pre_prologue): Move from the header file to the
+ code file right before including the header file.
+ (b4_before_definitions): New in the previous position of
+ b4_pre_prologue in the header file.
+ (b4_after_definitions): New near the end of the header file.
+ * data/yacc.c: Clean up some m4 quoting especially in the header file.
+ (b4_token_enums_defines): In the code file, move to right before
+ YYSTYPE for consistency with the header file.
+ (b4_before_definitions): New right before b4_token_enums_defines in
+ both the header and code file.
+ (b4_after_definitions): New right after YYLTYPE and yylloc in both the
+ header and code file.
+ * doc/bison.texinfo (Prologue): Show use of %before-definitions instead
+ of prologues for %union dependencies.
+ (Bison Declaration Summary): In %defines description, mention the
+ effect of %before-definitions and %after-definitions on the header
+ file.
+ (Calc++ Parser): Forward declare driver in a %before-definitions rather
+ than in the pre-prologue so that make check succeeds.
+ (Bison Symbols): Add entries for %before-definitions and
+ %after-definitions.
+ * src/parse-gram.y (PERCENT_BEFORE_DEFINITIONS): New token for
+ %before-definitions.
+ (PERCENT_AFTER_DEFINITIONS): New token for %after-definitions.
+ (declaration): Parse those declarations and append to
+ b4_before_definitions and b4_after_definitions, respectively.
+ * src/reader.c (before_definitions, after_definitions): New bools to
+ track whether those declarations have been seen.
+ (prologue_augment): Add to the post-prologue if %union,
+ %before-definitions, or %after-definitions has been seen.
+ * src/reader.h (before_definitions, after_definitions): New extern's.
+ * src/scan-gram.l: Scan the new declarations.
+ * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Place the second
+ prologue block in a %before-definitions or a %after-definitions based
+ on whether the %union is declared.
+ * tests/regression.at (Early token definitions with --yacc, Early token
+ definitions without --yacc): Move tests for token definitions into the
+ post-prologue since token names are no longer defined in the
+ pre-prologue.
+
+2006-06-20 Akim Demaille <akim@epita.fr>
+
+ * src/symtab.h, src/symtab.c (symbol_from_uniqstr): New.
+ (symbol_get): Use it.
+ * src/parse-gram.y: Use it.
+
+2006-06-19 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ * src/scan-gram.l: Remove unused declaration of last_string_1 so the
+ build succeeds when configured with --enable-gcc-warnings.
+
+2006-06-19 Paul Eggert <eggert@cs.ucla.edu>
+
+ * src/parse-gram.y (char_name): New function.
+ (CHAR, STRING, string_content): For %printer, properly escape.
+ (ID): Prefer fputs to fprintf.
+ (id): Reindent to be consistent with other rules.
+ Properly quote char.
+
+ The Translation Project changed its way of publishing translations
+ to maintainers. I haven't received any responses to my request
+ for supporting the old way, or for documenting the new way. I
+ have modified 'bootstrap' to use screen scraping
+ (in this case, HTML scraping). This is unreliable and inelegant,
+ but I don't see any better way. Yuck.
+ * bootstrap (TP_URL, WGET_COMMAND): New vars.
+ (get_translations): New function, which uses HTML scraping to
+ deduce locations of latest translations.
+ Use this function to grab both bison and bison-runtime .po files.
+ Don't bother priming the pump for the runtime-po domain any more,
+ as it's now translated better than bison is.
+
+2006-06-19 Akim Demaille <akim@epita.fr>
+
+ * src/scan-gram.l: No longer "parse" things after `%union' until
+ `{'. Rather, return a single "%union" token.
+ No longer make symbols: return strings, and leave the conversion
+ to symbols to the parser.
+ (SC_PRE_CODE, token_type): Remove.
+ * src/parse-gram.y (%union): New field `character'.
+ Sort tokens.
+ (CHAR): New token.
+ (ID, ID_COLON): Now that the scanner no longer makes them
+ identifiers, adjust all uses to invoke symbol_get.
+ (id_colon): New, wraps the conversion from string to symbol.
+ (%union): Accept a possible union_name.
+ (symbol): Now can be a char.
+ * data/c.m4 (b4_union_name): Leave a default value.
+ * data/glr.c, data/yacc.c: Use it.
+
+2006-06-11 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ For associating token numbers with token names for "yacc.c", don't use
+ #define statements unless `--yacc' is specified; always use enum
+ yytokentype. Most important discussions start at:
+ <http://lists.gnu.org/archive/html/bison-patches/2005-09/msg00053.html>,
+ <http://lists.gnu.org/archive/html/bison-patches/2005-12/msg00052.html>,
+ and
+ <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00043.html>.
+ * NEWS (2.3+): Mention.
+ * data/c.m4 (b4_yacc_if): New.
+ (b4_token_enums_defines): Use b4_yacc_if to decide whether to add the
+ token #define's.
+ * doc/bison.texinfo (Bison Options): Describe the effect of `--yacc'
+ on token name definitions.
+ * src/getargs.c (usage): Capitalize `Yacc' in English.
+ * src/output.c (prepare): Define b4_yacc_flag.
+ * tests/regression.at (Early token definitions): Test that tokens names
+ are defined before the pre-prologue not just before the post-prologue.
+ Remove this test case and copy to...
+ (Early token definitions with --yacc): ... this to test #define's.
+ (Early token definitions without --yacc): ... and this to test enums.
+
+2006-06-11 Paul Eggert <eggert@cs.ucla.edu>
+
+ * NEWS: Reword the post-2.3 change to not be so optimistic about
+ removing the old "look-ahead" spelling.
+ Update previous look-ahead/lookahead change reports.
+ * REFERENCES: look-ahead -> lookahead (since that's
+ what he actually wrote).
+ * doc/refcard.tex: look ahead -> lookahead,
+ look-ahead -> lookahead
+
+2006-06-09 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ For consistency, use `lookahead' instead of `look-ahead' or
+ `look_ahead'. Discussed starting at
+ <http://lists.gnu.org/archive/html/bison-patches/2006-01/msg00049.html>
+ and then at
+ <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00017.html>.
+ * NEWS: For the next release, note the change to `--report'.
+ * TODO, doc/bison.1: Update English.
+ * doc/bison.texinfo: Update English.
+ (Understanding Your Parser, Bison Options): Document as
+ `--report=lookahead' rather than `--report=look-ahead'.
+ * src/conflicts.c: Update English in comments.
+ (lookahead_set): Rename from look_ahead_set.
+ (flush_reduce): Rename argument look_ahead_tokens to lookahead_tokens.
+ (resolve_sr_conflict): Rename local look_ahead_tokens to
+ lookahead_tokens, and update other uses.
+ (flush_shift, set_conflicts, conflicts_solve, count_sr_conflicts,
+ count_rr_conflicts, conflicts_free): Update uses.
+ * src/getargs.c (report_args): Move "lookahead" before alternate
+ spellings.
+ (report_types): Update uses.
+ (usage): For `--report' usage description, state `lookahead' spelling
+ rather than `look-ahead'.
+ * src/getargs.h (report.report_lookahead_tokens): Rename from
+ report_look_ahead_tokens.
+ * src/lalr.c: Update English in comments.
+ (compute_lookahead_tokens): Rename from compute_look_ahead_tokens.
+ (state_lookahead_tokens_count): Rename from
+ state_look_ahead_tokens_count.
+ Rename local n_look_ahead_tokens to n_lookahead_tokens.
+ (lookahead_tokens_print): Rename from look_ahead_tokens_print.
+ Rename local n_look_ahead_tokens to n_lookahead_tokens.
+ Update other uses.
+ Update English in output.
+ (add_lookback_edge, initialize_LA, lalr, lalr_free): Update uses.
+ * src/print.c: Update English in comments.
+ (lookahead_set): Rename from look_ahead_set.
+ (print_reduction): Rename argument lookahead_token from
+ look_ahead_token.
+ (print_core, state_default_rule, print_reductions, print_results):
+ Update uses.
+ * src/print_graph.c: Update English in comments.
+ (print_core): Update uses.
+ * src/state.c: Update English in comments.
+ (reductions_new): Update uses.
+ (state_rule_lookahead_tokens_print): Rename from
+ state_rule_look_ahead_tokens_print, and update other uses.
+ * src/state.h: Update English in comments.
+ (reductions.lookahead_tokens): Rename from look_ahead_tokens.
+ (state_rule_lookahead_tokens_print): Rename from
+ state_rule_look_ahead_tokens_print.
+ * src/tables.c: Update English in comments.
+ (conflict_row, action_row): Update uses.
+ * tests/glr-regression.at
+ (Incorrect lookahead during deterministic GLR,
+ Incorrect lookahead during nondeterministic GLR): Rename
+ print_look_ahead to print_lookahead.
+ * tests/torture.at: Update English in comments.
+ (AT_DATA_LOOKAHEAD_TOKENS_GRAMMAR): Rename from
+ AT_DATA_LOOK_AHEAD_TOKENS_GRAMMAR.
+ (Many lookahead tokens): Update uses.
+ * data/glr.c: Update English in comments.
+ * lalr1.cc: Likewise.
+ * yacc.c: Likewise.
+ * src/conflicts.h: Likewise.
+ * src/lalr.h: Likewise.
+ * src/main.c: Likewise.
+ * src/output.c: Likewise.
+ * src/parse-gram.c: Likewise.
+ * src/tables.h: Likewise.
+ * tests/calc.at: Likewise.
+
+2006-06-08 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ * src/flex-scanner.h (yytext): Remove stray `*/' in #define.
+
+2006-06-07 Paul Eggert <eggert@cs.ucla.edu>
+
+ * TODO: Add request from Nelson H. F. Beebe to be able to install
+ Bison without installing the yacc script.
+
+2006-06-07 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ * src/flex-scanner.h: For the sake of Flex 2.5.4, don't #define yyleng
+ and yytext if they're already #define'd.
+ * src/flex-scanner.h, src/location.h: Move #include "system.h" to...
+ * src/scan-code-c.c: ... here.
+ * src/scan-code.l, src/scan-gram.l: ... and here. Also #include
+ <config.h>.
+
+2006-06-07 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ Get Bison to build again when configured with --enable-gcc-warnings.
+ * src/location.c, src/location.h, src/main.c, src/scan-code.l: Add some
+ missing #include's.
+ * src/scan-code.l (handle_action_dollar, handle_action_at): Rename
+ loc argument as it shadows a global.
+ * src/scan-gram.l: Remove stray comma that prevents boundary_set
+ invocation.
+
+ * src/.cvsignore: Add scan-code.c.
+
+2006-06-07 Akim Demaille <akim@epita.fr>
+
+ * src/scan-gram.l: Move the "add a trailing ; to actions" code
+ to...
+ * src/scan-code.l: here.
+ * tests/input.at (Torturing the Scanner): Fix another location
+ error.
+
+2006-06-07 Akim Demaille <akim@epita.fr>
+
+ * src/Makefile.am (BUILT_SOURCES): Fix the trailing backslash.
+
+2006-06-06 Akim Demaille <akim@epita.fr>
+
+ Extract the parsing of user actions from the grammar scanner.
+ As a consequence, the relation between the grammar scanner and
+ parser is much simpler. We can also split "composite tokens" back
+ into simple tokens.
+ * src/gram.h (ITEM_NUMBER_MAX, RULE_NUMBER_MAX): New.
+ * src/scan-gram.l (add_column_width, adjust_location): Move to and
+ rename as...
+ * src/location.h, src/location.c (add_column_width)
+ (location_compute): these.
+ Fix the column count: the initial column is 0.
+ (location_print): Be robust to ending column being 0.
+ * src/location.h (boundary_set): New.
+ * src/main.c: Adjust to scanner_free being renamed as
+ gram_scanner_free.
+ * src/output.c: Include scan-code.h.
+ * src/parse-gram.y: Include scan-gram.h and scan-code.h.
+ Use boundary_set.
+ (PERCENT_DESTRUCTOR, PERCENT_PRINTER, PERCENT_INITIAL_ACTION)
+ (PERCENT_LEX_PARAM, PERCENT_PARSE_PARAM): Remove the {...} part,
+ which is now, again, a separate token.
+ Adjust all dependencies.
+ Whereever actions with $ and @ are used, use translate_code.
+ (action): Remove this nonterminal which is now useless.
+ * src/reader.c: Include assert.h, scan-gram.h and scan-code.h.
+ (grammar_current_rule_action_append): Use translate_code.
+ (packgram): Bound check ruleno, itemno, and rule_length.
+ * src/reader.h (gram_in, gram__flex_debug, scanner_cursor)
+ (last_string, last_braced_code_loc, max_left_semantic_context)
+ (scanner_initialize, scanner_free, scanner_last_string_free)
+ (gram_out, gram_lineno, YY_DECL_): Move to...
+ * src/scan-gram.h: this new file.
+ (YY_DECL): Rename as...
+ (GRAM_DECL): this.
+ * src/scan-code.h, src/scan-code.l, src/scan-code-c.c: New.
+ * src/scan-gram.l (gram_get_lineno, gram_get_in, gram_get_out):
+ (gram_get_leng, gram_get_text, gram_set_lineno, gram_set_in):
+ (gram_set_out, gram_get_debug, gram_set_debug, gram_lex_destroy):
+ Move these declarations, and...
+ (obstack_for_string, STRING_GROW, STRING_FINISH, STRING_FREE):
+ these to...
+ * src/flex-scanner.h: this new file.
+ * src/scan-gram.l (rule_length, rule_length_overflow)
+ (increment_rule_length): Remove.
+ (last_braced_code_loc): Rename as...
+ (gram_last_braced_code_loc): this.
+ Adjust to the changes of the parser.
+ Move all the handling of $ and @ into...
+ * src/scan-code.l: here.
+ * src/scan-gram.l (handle_dollar, handle_at): Remove.
+ (handle_action_dollar, handle_action_at): Move to...
+ * src/scan-code.l: here.
+ * src/Makefile.am (bison_SOURCES): Add flex-scanner.h,
+ scan-code.h, scan-code-c.c, scan-gram.h.
+ (EXTRA_bison_SOURCES): Add scan-code.l.
+ (BUILT_SOURCES): Add scan-code.c.
+ (yacc): Be robust to white spaces.
+
+ * tests/conflicts.at, tests/input.at, tests/reduce.at,
+ * tests/regression.at: Adjust the column numbers.
+ * tests/regression.at: Adjust the error message.
+
+2006-06-06 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ * src/getargs.c (usage): Mention GLR not just LALR(1) in --help output.
+ Use Akim's wording from
+ <http://lists.gnu.org/archive/html/bison-patches/2006-05/msg00056.html>.
+
+2006-06-06 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ Between Bison releases, manually append `+' to the previous Bison
+ release number, and use that as a signal to automatically print the
+ ChangeLog's CVS Id keyword from --version. Discussed starting at
+ <http://lists.gnu.org/archive/html/bison-patches/2006-05/msg00028.html>.
+ * ChangeLog: Add Id header.
+ * configure.ac (AC_INIT): Append `+' to `2.3'.
+ * src/.cvsignore: Add revision.c.
+ * src/Makefile.am (bison_SOURCES): Add revision.c and revision.h.
+ (BUILT_SOURCES): Add revision.c.
+ (revision.c): New target rule. This file defines a new global variable
+ named revision. It initializes it with either the Id from ChangeLog
+ or, if VERSION doesn't contain `+', with the empty string.
+ * src/getargs.c (version): Print the value of revision.
+ * src/revision.h: Extern revision.
+
+2006-06-05 Paul Eggert <eggert@cs.ucla.edu>
+
+ * NEWS: Version 2.3.
+ * configure.ac (AC_INIT): Likewise.
+
+2006-05-30 Paul Eggert <eggert@cs.ucla.edu>
+
+ * data/glr.c (YYRECOVERING): Define to be a function-like macro
+ with no arguments, not as an object-like macro. This is for
+ compatibility with data/yacc.c. Problem reported by John P. Hartmann in
+ <http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00059.html>.
+ * doc/bison.texinfo (Action Features, Error Recovery, Table of Symbols):
+ Document this.
+
+2006-05-30 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ * src/getargs.c (usage): Back out yesterday's modification of the
+ --help output so that we don't have to wait for translation before
+ releasing 2.3.
+
+2006-05-29 Paul Eggert <eggert@cs.ucla.edu>
+
+ * doc/bison.texinfo (Introduction): Don't say "GLR grammar".
+ Problem reported by Akim Demaille.
+
+2006-05-29 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ * src/getargs.c (usage): Mention GLR not just LALR(1) in --help output.
+
+2006-05-26 Paul Eggert <eggert@cs.ucla.edu>
+
+ * data/yacc.c (yy_reduce_print): Omit trailing white space in
+ generated source code. Problem reported by Frans Englich in
+ <http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00049.html>.
+
+2006-05-22 Paul Eggert <eggert@cs.ucla.edu>
+
+ * Makefile.maint (gzip_rsyncable, GZIP_ENV): Compute within the
+ shell, not within 'make', so that 'make' by an ordinary builder
+ (using GNU make) does not worry about configuring gzip. This also
+ works around a bug reported independently by Keith Thompson and by
+ Georg Schwarz, whereby gzip 1.2.4 --help would output usage on
+ stderr rather than stdout, messing up the build logs.
+
+2006-05-21 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ * data/yacc.c (yyparse): Wrap the final return from yyparse inside YYID
+ to make sure that YYID will never be unused. This fixes a 'make
+ maintainer-check' failure caused by the recent changes to the 'Trivial
+ grammars' test case, which caused g++ 4.1.0 to complain that YYID was
+ not used.
+ * data/glr.c (yyparse): Wrap yyparse's return inside YYID just in case.
+
+2006-05-21 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ * data/glr.c (yyresolveLocations): Remove bogus YYASSERT that the
+ state before an empty RHS is always resolved here. Only the location
+ of that state is guaranteed to be resolved, and that's enough. This
+ fixes the remaining bug reported by Derek M. Jones in
+ <http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00027.html>.
+ * tests/glr-regression.at (Uninitialized location when reporting
+ ambiguity): Test the above case.
+ Also, the embedded comments in this test case claim it checks the case
+ of an empty RHS that has inherited the initial location. However, the
+ corresponding LHS was already resolved, so yyresolveLocations didn't
+ actually have reason to modify it. Fix this by forcing
+ nondeterministic operation at the beginning of the parse.
+
+2006-05-20 Paul Eggert <eggert@cs.ucla.edu>
+
+ * data/c.m4 (b4_yy_symbol_print_generate):
+ (b4_yy_symbol_print_generate): Use 'YYSTYPE const' rather than
+ 'const YYSTYPE', and similarly for YYLTYPE. This fixes one
+ of the bugs reported today by Derek M Jones in
+ <http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00027.html>.
+ * doc/bison.texinfo (Value Type): Document that YYSTYPE must be
+ defined to be a type name without parens or brackets.
+ (Location Type): Similarly for YYLTYPE.
+ * tests/regression.at (Trivial grammars): Put in a test for this
+ bug that will be caught by 'make maintainer-check' (though not,
+ alas, by 'make check' unless your compiler is picky).
+
+2006-05-19 Paul Eggert <eggert@cs.ucla.edu>
+
+ * NEWS: Version 2.2.
+ * configure.ac (AC_INIT): Likewise.
+
+2006-05-17 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ * data/glr.c (yyreportTree): Make room in yystates for the state
+ preceding the RHS. This fixes the segmentation fault reported by Derek
+ M. Jones in
+ <http://lists.gnu.org/archive/html/help-bison/2006-05/msg00035.html>.
+ (yyreportTree, yypdumpstack): Subtract 1 from yyrule before printing
+ to the user. Reported for yyreportTree by Derek M. Jones later in the
+ same thread.
+ * THANKS: Add Derek M. Jones.
+ Update my email address.
+ Fix typo in Steve Murphy's name.
+
+2006-05-14 Paul Eggert <eggert@cs.ucla.edu>
+
+ * data/glr.c (yyreportSyntaxError): Fix off-by-one error in
+ checking against YYLAST that caused the parser to miss a potential
+ alternative in its diagnostic.
+ Problem reported by Maria Jose Moron Fernandez in
+ <http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00024.html>.
+ * data/lalr1.cc (yysyntax_error_): Likewise.
+ * data/yacc.c (yysyntax_error): Likewise.
+ * tests/regression.at (_AT_DATA_DANCER_Y): Use static array for
+ tokens, in case we run into an older C compiler.
+ (_AT_DATA_EXPECT2_Y, AT_CHECK_EXPECT2): New macros.
+ Use them to check for the off-by-one error fixed above.
+
+ * data/yacc.c (yytnamerr): Fix typo: local var should be of type
+ YYSIZE_T, not size_t.
+ * tests/regression.at (Trivial grammars): New test, to catch
+ the error fixed by the above patch.
+
+2006-05-14 Akim Demaille <akim@lrde.epita.fr>
+
+ * doc/bison.texinfo (C++ Bison Interface): Clarify the naming
+ scheme.
+ Reported by Steve Murphy.
+
+2006-05-14 Akim Demaille <akim@lrde.epita.fr>
+
+ * data/glr.cc, data/lalr1.cc: Using %defines is mandatory.
+ * data/glr.cc: b4_location_flag is now b4_locations_flag.
+
+2006-05-14 Akim Demaille <akim@lrde.epita.fr>
+
+ Implement --trace=m4.
+ * src/getargs.c (trace_types, trace_args): Accept trace_m4.
+ * src/output.c (output_skeleton): When set, pass -dV to m4.
+
+ Factor the handling of flags in m4.
+ * src/output.c (prepare): Rename the muscle names debug, defines,
+ error_verbose to debug_flag, defines_flag, error_verbose_flag.
+ * data/c.m4: Adjust.
+ (_b4_define_flag_if, b4_define_flag_if, b4_defines_if): New.
+ Use b4_define_flag_if to define other b4_FLAG_if macros.
+ (b4_location_if): As a consequence, rename as...
+ (b4_locations_if): this, for consistency.
+ Adjust all the skeletons.
+
+2006-05-14 Akim Demaille <akim@lrde.epita.fr>
+
+ * etc/bench.pm: Shorten bench names.
+
+2006-05-14 Akim Demaille <akim@lrde.epita.fr>
+
+ * src/output.h, src/output.c (error_verbose): Move to...
+ * src/getargs.h, src/getargs.c: here.
+ Sort the flags.
+ Adjust dependencies.
+
+2006-05-13 Paul Eggert <eggert@cs.ucla.edu>
+
+ * data/c.m4 (b4_copyright): Put the special exception for Bison
+ skeletons here, so we don't have to put it in each skeleton. All
+ uses changed. Suggested by Akim Demaille. Also, wrap the
+ copyright notice, in case it is longer than 80 columns. Replace
+ comma by newline after title.
+
+2006-05-11 Paul Eggert <eggert@cs.ucla.edu>
+
+ * doc/bison.texinfo (Calc++ Scanner): The flex behavior is an
+ incompatibility, not a bug. Mention that it wasn't fixed as of
+ flex 2.5.33.
+
+2006-05-11 Akim Demaille <akim@lrde.epita.fr>
+
+ * examples/extexi: Enforce the precedence of concatenation over
+ >>.
+ Reported by Tommy Nordgren.
+
+2006-05-11 Akim Demaille <akim@lrde.epita.fr>
+
+ * data/lalr1.cc (yytranslate_): Rename token as t to avoid clashes
+ with the member "token".
+ Reported by Martin Nylin.
+
+2006-05-08 Paul Eggert <eggert@cs.ucla.edu>
+
+ * data/glr.c: Switch to Bison 2.2 special-exception language in
+ the copyright notice. Use more-regular format for titles and
+ copyright notices.
+ * data/glr.cc: Likewise.
+ * data/location.cc: Likewise.
+ * data/yacc.cc: Likewise.
+ * doc/bison.texinfo (Conditions): Document this.
+ * NEWS: likewise. Upgrade version to 2.2.
+
+2006-04-27 Akim Demaille <akim@lrde.epita.fr>
+
+ * data/glr.cc: Remove dead code.
+
+2006-04-25 Paul Eggert <eggert@cs.ucla.edu>
+
+ * bootstrap: Comment out the AM_CPPFLAGS line, since we don't use
+ that variable and the line breaks the bootstrap. Problem reported
+ by Juan M. Guerrero.
+
+2006-04-24 Akim Demaille <akim@lrde.epita.fr>
+
+ * doc/bison.texinfo (Multiple start-symbols): New.
+
+2006-04-24 Akim Demaille <akim@lrde.epita.fr>
+
+ * etc/README, etc/bench.pl: New.
+
+2006-04-03 Akim Demaille <akim@lrde.epita.fr>
+
+ * src/scan-gram.l: Be robust to BRACED_CODE appearing before any
+ rule.
+ Reported by Mickael Labau.
+ * tests/input.at (Torturing the Scanner): Test it.
+
+2006-03-16 Paul Eggert <eggert@cs.ucla.edu>
+
+ * doc/bison.texinfo (Decl Summary): Don't mention yylloc twice.
+ Problem reported by Bob Rossi.
+
+2006-03-13 Paul Eggert <eggert@cs.ucla.edu>
+
+ * doc/bison.texinfo: Remove @shorttitlepage stuff; it wasn't used
+ and didn't really work.
+ For the index, use @ifnotinfo, not @iftex.
+ Minor cleanups of spacing and terminology.
+
+2006-03-12 Akim Demaille <akim@lrde.epita.fr>
+
+ * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Fix the definition
+ of AT_NAME_PREFIX when %name-prefix is not used.
+
+2006-03-12 Akim Demaille <akim@lrde.epita.fr>
+
+ Apply --prefix to C++ skeletons too: they change the namespace.
+ The test suite already exercize these cases.
+ * data/c++.m4 (b4_namespace): New.
+ * data/lalr1.cc, data/glr.cc, data/location.cc: Use it instead of `yy'.
+ * data/lalr1.cc (yytnameerr_): Move its definition into the namespace.
+ * data/yacc.c, data/glr.c: Remove a useless `[]'.
+ * doc/bison.texinfo: Document it.
+ (Option Cross Key): Use @multitable in all formats. It looks
+ nicer, even in TeX outputs.
+ (Rules): Use the same code whatever the output type is.
+ * tests/local.at (_AT_BISON_OPTION_PUSHDEFS)
+ (_AT_BISON_OPTION_POPDEFS): Support AT_NAME_PREFIX.
+ * tests/calc.at: Use it, instead of hard coding `yy'.
+
+2006-03-10 Akim Demaille <akim@lrde.epita.fr>
+
+ * TODO: Remove dead items.
+
+2006-03-10 Akim Demaille <akim@lrde.epita.fr>
+
+ * doc/FAQ: Remove, merged into...
+ * doc/bison.texinfo (FAQ): this.
+ * doc/Makefile.am (EXTRA_DIST): Adjust.
+
+2006-03-10 Akim Demaille <akim@lrde.epita.fr>
+
+ * data/c.m4 (b4_token_enum): Always define the enum of tokens,
+ even if empty.
+ * data/lalrl1.cc, data/glr.cc (parser::token_type): New.
+ * doc/bison.texinfo (Calc++ Scanner): Use it.
+
+2006-03-09 Paul Eggert <eggert@cs.ucla.edu>
+
+ Fix two nits reported by twlevo, plus one more that I discovered.
+
+ * src/assoc.h (assoc_to_string): Give a name to the arg, as
+ this is the usual Bison style.
+ * src/location.h (location_print): Likewise.
+
+ * src/reader.h (token_name): Likewise.
+
+2006-03-08 Paul Eggert <eggert@cs.ucla.edu>
+
+ Fix some nits reported by twlevo.
+ * doc/FAQ: Remove ancient Y2K FAQ, replacing it with "secure"
+ and "POSIX". Use more-modern syntax for URLs. Mention C++
+ and ask for Java. Don't hardwire OS version numbers. Add
+ copyright notice.
+ * m4/.cvsignore: Add unistd_h.m4, for latest gnulib.
+ * src/conflicts.c (solved_conflicts_obstack): Now static.
+
+2006-03-08 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ * doc/bison.texinfo (Introduction): Mention GLR and C++ as on the web
+ page. Say "you can use it" not "you may use it" as on the web page;
+ we're describing capabilities not granting permission.
+
+2006-03-06 Paul Eggert <eggert@cs.ucla.edu>
+
+ * data/glr.c (yyresolveLocations): Rename local variables to avoid
+ shadowing warnings. Use usual patter for iterating through RHS.
+ * tests/glr-regression.at
+ (Uninitialized location when reporting ambiguity):
+ Modify yylex so that it uses its argument, rather than trying
+ to rely on ARGSUSED (which doesn't work for gcc with warnings).
+ const char -> char const.
+
+ * tests/Makefile.am ($(srcdir)/package.m4, maintainer-check-valgrind):
+ Don't use tabs inside commands; it messes up 'ps'.
+ Problem reported by twlevo.
+
+2006-03-06 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ * tests/glr-regression.at (Uninitialized location when reporting
+ ambiguity): New test case.
+ * data/glr.c (yyresolveLocations): New function, which uses
+ YYLLOC_DEFAULT.
+ (yyresolveValue): Invoke yyresolveLocations before reporting an
+ ambiguity.
+ * doc/bison.texinfo (Default Action for Locations): Note
+ YYLLOC_DEFAULT's usage for ambiguity locations.
+ (GLR Semantic Actions): Cross-reference those notes.
+
+2006-03-04 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ * tests/glr-regression.at (Leaked semantic values when reporting
+ ambiguity): Remove unnecessary union and type declarations.
+ (Leaked lookahead after nondeterministic parse syntax error): New test
+ case.
+ * data/glr.c (yyparse): Check for zero stacks remaining before
+ attempting to shift the lookahead so that you don't lose it.
+
+2006-03-02 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ Avoid memory leaks by not invoking longjmp in yyreportAmbiguity.
+ * tests/glr-regression.at (Leaked semantic values when reporting
+ ambiguity): New test case.
+ * data/glr.c (yyreportAmbiguity): Invoke yyyerror directly and return
+ yyabort rather than invoking yyFail, which invokes longjmp. Remove the
+ now unnecessary yystackp parameter.
+ (yyresolveValue): Return yyreportAmbiguity's result. Now the necessary
+ destructors can be called.
+
+ * tests/glr-regression.at: Don't invoke bison with `-t' unnecessarily
+ in existing testcases.
+
2006-03-02 Joel E. Denny <jdenny@ces.clemson.edu>
Don't leak semantic values for parent RHS when a user action cuts the
parser, and clean up related code a bit.
* tests/glr-regression.at (Leaked merged semantic value if user action
- cuts parse) Rename to...
- (Leaked semantic values if user action cuts parse) ... this. Add check
+ cuts parse): Rename to...
+ (Leaked semantic values if user action cuts parse): ... this. Add check
for leaked parent RHS values.
* data/glr.c (yydestroyGLRState): In debugging output, distinguish
between an unresolved state (non-empty chain of semantic options) and
an incomplete one (signaled by an empty chain).
- (yyresolveStates): Document the interface. Move all manipulation of an
+ (yyresolveStates): Document the interface. Move all manipulation of a
successfully or unsuccessfully resolved yyGLRState to...
(yyresolveValue): ... here so that yyresolveValue always leaves a
yyGLRState with consistent data and thus is easier to understand.
Copying and distribution of this file, with or without
modification, are permitted provided the copyright notice and this
notice are preserved.
+
+$Id$
projects / bison.git / blobdiff