+2009-08-25 Joel E. Denny <jdenny@clemson.edu>
+
+ More fixes related to last two patches.
+ * data/c.m4 (b4_table_value_equals): Comment that YYID must be
+ defined.
+ * data/glr.c, data/lalr1.cc, data/lalr1.java, data/yacc.c: Fix
+ yytable comments: zero indicates syntax error not default
+ action.
+ * data/glr.c (yyis_pact_ninf): Rename to...
+ (yypact_value_is_default): ... this.
+ (yyisDefaultedState): Update for rename.
+ (yyis_table_ninf): Rename to...
+ (yytable_value_is_error): ... this, and check for value zero
+ besides just YYTABLE_NINF.
+ (yygetLRActions): Check for default value from yypact. It
+ appears that this check is always performed before this function
+ is invoked, and so adding the check here is probably redundant.
+ However, the code may evolve after this subtlety is forgotten.
+ Also, update for rename to yytable_value_is_error. Because that
+ macro now checks for zero, a different but equivalent branch of
+ the if-then-else here is evaluated.
+ (yyreportSyntaxError): Update for rename to
+ yytable_value_is_error. The zero condition was mishandled
+ before.
+ (yyrecoverSyntaxError): Update for renames. No behavioral
+ changes.
+ * data/lalr1.cc, data/lalr1.java (yy_pact_value_is_default_):
+ New function.
+ (yy_table_value_is_error_): New function.
+ (parse): Use new functions where possible. No behavioral
+ changes.
+ (yysyntax_error_, yysyntax_error): Use yy_table_value_is_error_.
+ The zero condition was mishandled before.
+ * data/yacc.c (yyis_pact_ninf): Rename to...
+ (yypact_value_is_default): ... this.
+ (yyis_table_ninf): Rename to...
+ (yytable_value_is_error): ... this, and check for value zero
+ besides just YYTABLE_NINF.
+ (yysyntax_error): Update for rename to yytable_value_is_error.
+ The zero condition was mishandled before.
+ (yyparse): Update for renames. No behavioral changes.
+ * src/tables.h: Improve comments about yypact, yytable, etc.
+ more. Most importantly, say yytable value of zero means syntax
+ error not default action.
+
+2009-08-25 Joel E. Denny <jdenny@clemson.edu>
+
+ Fix %error-verbose for conflicts resolved by %nonassoc.
+ * NEWS (2.5): Document.
+ * data/glr.c (yyreportSyntaxError): Fix this by checking
+ yyis_table_ninf.
+ * data/yacc.c (yysyntax_error): Likewise.
+ * data/lalr1.cc (yysyntax_error_): Fix this by checking
+ yytable_ninf_.
+ * data/lalr1.java (yysyntax_error): Likewise.
+ * tests/conflicts.at (%nonassoc and eof): Update expected output
+ and remove FIXME.
+
+2009-08-25 Joel E. Denny <jdenny@clemson.edu>
+
+ Some code and documentation improvements.
+ * data/c.m4 (b4_table_value_equals): New macro to capture
+ some repeated code.
+ * data/glr.c (yyis_pact_ninf): Use it here.
+ (yyis_table_ninf): Likewise.
+ (yyreportSyntaxError): Improve internal comments.
+ * data/yacc.c (yyis_pact_ninf): New macro copied from glr.c.
+ Use it everywhere possible.
+ (yyis_table_ninf): Likewise.
+ (yysyntax_error): Improve internal comments.
+ * data/lalr1.cc (yysyntax_error_): Likewise.
+ * data/lalr1.java (yysyntax_error): Likewise.
+ * src/tables.h: Improve comments about yypact, yytable, etc.
+
+2009-08-21 Joel E. Denny <jdenny@clemson.edu>
+
+ Use locale when quoting.
+ * src/scan-gram.l (SC_ESCAPED_STRING, SC_ESCAPED_CHARACTER): Use
+ quote rather than implementing quoting here.
+
+2009-08-20 Eric Blake <ebb9@byu.net>
+
+ Make previous patch more robust.
+ * src/output.c (ARRAY_CARDINALITY): New macro, copied from
+ argmatch.h.
+ (output_skeleton): Use it.
+ Suggested by Akim Demaille.
+
+ Import latest m4/m4.m4.
+ * submodules/autoconf: Update to autoconf 2.64.
+ * configure.ac (M4_GNU_OPTION): New define.
+ * src/output.c (output_skeleton): Use it to resolve FIXME.
+ * NEWS: Mention this.
+
+2009-08-19 Joel E. Denny <jdenny@clemson.edu>
+
+ Fix complaints about escape sequences.
+ Discussed starting at
+ <http://lists.gnu.org/archive/html/bison-patches/2009-08/msg00036.html>.
+ * src/scan-gram.l (SC_ESCAPED_STRING, SC_ESCAPED_CHARACTER):
+ For a \0 and similar escape sequences meaning the null
+ character, report an invalid escape sequence instead of an
+ invalid null character because the latter does not actually
+ appear in the user's input.
+ In all escape sequence complaints, don't escape the initial
+ backslash, and don't quote when the sequence appears at the end
+ of the complaint line unless there's whitespace that quotearg
+ won't escape.
+ Consistently say "invalid" not "unrecognized".
+ Consistently prefer "empty character literal" over "extra
+ characters in character literal" warning for invalid escape
+ sequences; that is, consistently discard those sequences.
+ * tests/input.at (Bad escapes in literals): New.
+
+2009-08-19 Akim Demaille <demaille@gostai.com>
+
+ doc: fixes.
+ * doc/bison.texinfo: Fix minor Texinfo errors.
+
+2009-08-19 Akim Demaille <demaille@gostai.com>
+
+ doc: %initial-action to initialize yylloc.
+ Reported by Bill Allombert.
+ * doc/bison.texinfo: Set fill-column to 76.
+ (Location Type): Document the use of %initial-action to initialize
+ yylloc.
+
+2009-08-18 Joel E. Denny <jdenny@clemson.edu>
+
+ maint: update for gnulib's recent update-copyright changes
+ * gnulib: Update.
+ * .x-update-copyright (COPYING): Add as it's no longer implied
+ when .x-update-copyright is present.
+ * cfg.mk (update-copyright-local): Remove, now ignored.
+ (update-copyright): Declare update-b4-copyright as a dependency.
+
+2009-08-17 Akim Demaille <demaille@gostai.com>
+
+ build: require gettext 0.17.
+
+ Suggested by Bruno Haible.
+ http://lists.gnu.org/archive/html/bug-bison/2009-08/msg00009.html
+ * configure.ac: require gettext 0.17 to ensure compatibility with
+ gnulib.
+
+2009-08-17 Akim Demaille <demaille@gostai.com>
+
+ build: lower gettext requirements.
+
+ Bison was uselessly requiring the formatstring macros from
+ gettext, which resulted in mo files not being installed on systems
+ that perfectly supported Bison mo files. Lower the requirement.
+ http://lists.gnu.org/archive/html/bug-bison/2009-08/msg00006.html
+
+ * configure.ac: Require need-ngettext instead of
+ need-formatstring-macros.
+ Reported by Martin Jabocs.
+ Suggested by Bruno Haible.
+ * INSTALL: Restructure.
+ (Internationalization): New.
+
+2009-08-14 Joel E. Denny <jdenny@clemson.edu>
+
+ maint: fix use of copyright year intervals.
+ * gnulib: Update.
+ * bootstrap.conf (gnulib_modules): Update getopt to getopt-gnu
+ as now recommended in gnulib/NEWS.
+ * build-aux/update-b4-copyright: Fix.
+ * cfg.mk (update-copyright-env): Configure update-copyright.
+
+2009-08-13 Joel E. Denny <jdenny@clemson.edu>
+
+ Make it easier to write deterministic tests.
+ Continues Akim's work from his 2009-06-10 commits.
+ * src/reader.c (check_and_convert_grammar): Don't add any
+ symbols after the first symbols_do invocation.
+ * src/symtab.c (symbols_sorted): New static global.
+ (user_token_number_redeclaration): Update comments.
+ (symbol_from_uniqstr): If a new symbol is being created, assert
+ that symbols_sorted hasn't been allocated yet.
+ (symbols_free): Free symbols_sorted.
+ (symbols_cmp, symbols_cmp_qsort): New functions.
+ (symbols_do): Sort symbol_table into symbols_sorted on first
+ invocation.
+ * tests/input.at (Numbered tokens): Recombine tests now that the
+ output should be deterministic across multiple numbers.
+
+2009-08-12 Akim Demaille <demaille@gostai.com>
+
+ distcheck: fix.
+
+ * examples/calc++/Makefile.am: (EXTRA_DIST): Ship calc.stamp.
+
+2009-08-10 Joel E. Denny <jdenny@clemson.edu>
+
+ * tests/Makefile.am (TESTSUITE_AT): Add named-refs.at.
+
+2009-08-10 Joel E. Denny <jdenny@clemson.edu>
+
+ Miscellaneous code readability improvements.
+
+ * src/reader.c (reader): Move %define front-end variable
+ defaults and checking into...
+ (prepare_percent_define_front_end_variables): ... this new
+ function.
+
+ * src/scan-gram.l (INITIAL): For consistency with string
+ literals, don't store open quote on character literal. It's
+ discarded before returning anyway.
+ (SC_ESCAPED_CHARACTER): Similarly, don't store close quote.
+ Make length test more readable, and make the character stored
+ for an empty literal more obvious while consistent with the
+ previous behavior.
+
+ * src/symtab.c, src/symtab.h: Rename USER_NUMBER_ALIAS to
+ USER_NUMBER_HAS_STRING_ALIAS throughout.
+ * src/symtab.c (symbol_make_alias): Remove comment from symtab.c
+ that is repeated in symtab.h. Improve argument names to make it
+ clear which side of the symbol-string alias pair is which.
+ (symbol_check_alias_consistency): Improve local variable names
+ for the same purpose.
+ * src/symtab.h (struct symbol): Make comments about aliases
+ clearer.
+ (symbol_make_alias): Improve comments and argument name.
+ * src/output.c (token_definitions_output): Update for rename to
+ USER_NUMBER_HAS_STRING_ALIAS and improve comments about aliases.
+
+2009-08-08 Alex Rozenman <rozenman@gmail.com>
+
+ Convert "misleading reference" messages to warnings.
+ * src/scan-code.l: New function 'show_sub_messages', more
+ factoring.
+ * tests/named-ref.at: Adjust tests.
+
+2009-08-06 Joel E. Denny <jdenny@clemson.edu>
+
+ maint: run "make update-copyright"
+
+2009-08-06 Joel E. Denny <jdenny@clemson.edu>
+
+ maint: make update-b4-copyright easier to use
+ * build-aux/update-b4-copyright: In warnings, report line
+ numbers rather than character positions.
+ * cfg.mk (update-copyright-local): Set to update-b4-copyright so
+ that update-copyright runs it.
+ * gnulib: Update.
+
+2009-08-05 Joel E. Denny <jdenny@clemson.edu>
+
+ maint: clean up update-b4-copyright code
+ * build-aux/update-b4-copyright: Do not accept 2-digit
+ UPDATE_COPYRIGHT_YEAR, which was not handled correctly.
+ Don't accept a `[' in a b4_copyright argument.
+ Format code more consistently.
+ Don't assume b4*copyright never occurs.
+
+2009-08-04 Joel E. Denny <jdenny@clemson.edu>
+
+ maint: automate b4_copyright updates.
+ * Makefile.am (update-b4-copyright): New target rule.
+ * build-aux/Makefile.am (EXTRA_DIST): Add update-b4-copyright.
+ * build-aux/update-b4-copyright: New.
+ * data/yacc.c: Remove stray characters around b4_copyright
+ invocations.
+
+2009-08-04 Joel E. Denny <jdenny@clemson.edu>
+
+ maint: automate annual package-wide copyright-year update.
+ * .x-update-copyright: New.
+ * Makefile.am (EXTRA_DIST): Remove maint.mk.
+ * bootstrap.conf (gnulib_modules): Add maintainer-makefile and
+ update-copyright. Remove gnumakefile, which is implied by
+ maintainer-makefile.
+ * cfg.mk (bootstrap-tools): Copy from old maint.mk.
+ * gnulib: Update.
+ * maint.mk: Remove, now copied from gnulib.
+ * examples/extexi: Add missing "(C)" in copyright statement so
+ update-copyright can recognize it.
+ * src/LR0.h: Likewise.
+ * src/print.h: Likewise.
+ * src/print_graph.h: Likewise.
+ * src/gram.c: Add missing comma in copyright statement.
+ * src/gram.h: Likewise.
+
+2009-08-04 Joel E. Denny <jdenny@clemson.edu>
+
+ Fix "make distcheck".
+ * examples/calc++/Makefile.am: Say $(srcdir)/calc.stamp instead
+ of just calc.stamp.
+
+2009-08-01 Joel E. Denny <jdenny@clemson.edu>
+
+ Pacify "gcc -Wunused" for the input function from Flex.
+ Reported by Alex Rozenman. This warning shows up with gcc-4.3.0
+ and later.
+ * src/scan-code.l: Add "%option noinput", which I cannot find in
+ the Flex manual, but which Flex has supported since at least as
+ far back as 2.5.4. However, if any of our developers still use
+ Flex 2.5.4, they'll need to stop configuring with
+ --enable-gcc-warnings because "%option noinput" didn't work
+ correctly until Flex 2.5.6.
+ * src/scan-gram.l: Likewise.
+ * src/scan-skel.l: Likewise.
+
+2009-07-31 Alex Rozenman <rozenman@gmail.com>
+
+ Fix --enable-gcc-warnings problems.
+ * src/reader.c: Adjust variable names.
+ * src/scan-code.l: Fix prototypes and adjust names.
+ * src/named-ref.c: Remove redundant "if".
+
+2009-07-29 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ Fix a --enable-gcc-warnings problem.
+ * src/scan-gram.l (SC_ESCAPED_CHARACTER): Actually use length
+ variable.
+
+2009-07-24 Alex Rozenman <rozenman@gmail.com>
+
+ Fix some memory leaks.
+ * src/named-ref.c: Add a pointer check (named_ref_free).
+ * src/scan-code.l: New function (variant_table_free). Called in
+ code_scanner_free.
+ * src/symlist.c: Call to named_ref_free (symbol_list_free).
+
+2009-07-24 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ Warn about character literals not of length one.
+ * NEWS (2.5): Document.
+ * src/scan-gram.l (INITIAL): Remove comment that we don't check
+ the length.
+ (SC_ESCAPED_CHARACTER): Warn if length is wrong.
+ * tests/input.at (Bad character literals): New test group.
+
+2009-07-24 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ * src/lalr.c (state_lookahead_tokens_count): Correct comment.
+
+2009-07-22 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ Some M4 cleanup in the testsuite.
+ Suggested by Eric Blake at
+ <http://lists.gnu.org/archive/html/bison-patches/2009-04/msg00083.html>.
+ * tests/existing.at (_AT_TEST_EXISTING_GRAMMAR): Do not
+ complicate the code by distinguishing between a missing value
+ and an empty string value for an optional argument. This fix is
+ allowed by the similar fix in AT_TEST_TABLES_AND_PARSE below.
+ * tests/local.at (_AT_TEST_TABLES_AND_PARSE): Merge into...
+ (AT_TEST_TABLES_AND_PARSE): ... this now that the special
+ arguments are not needed because of the following changes.
+ Fix stale comments.
+ Bison developers should use GNU M4 and should not use
+ POSIXLY_CORRECT when building the test suite, so do not
+ complicate the code by avoiding $10 and above.
+ Do not quote an empty string value for an optional argument, and
+ do not distinguish between a missing value and an empty string
+ value.
+
+2009-07-21 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ * m4/m4.m4: Make it a sym link to submodules/autoconf/m4/m4.m4.
+
+2009-07-15 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ Revert unnecessary column realignment in --help output.
+ Reported by Akim Demaille at
+ <http://lists.gnu.org/archive/html/bison-patches/2009-06/msg00010.html>.
+ * src/getargs.c (usage): Here.
+
+2009-07-04 Alex Rozenman <rozenman@gmail.com>
+
+ Alphabetical order in src/Makefile.am.
+ * src/Makefile.am: Adjust.
+
+2009-07-04 Alex Rozenman <rozenman@gmail.com>
+
+ Style changes and factoring.
+ * src/named-ref.h: Add comments.
+ * src/parse-gram.y: Readability and style changes.
+ * src/reader.c: Factoring: assign_named_ref function.
+ * src/scan-code.l: Factoring and style changes. Rename
+ parse_named_ref to parse_ref. Use "c-ctype.h" from gnulib.
+ Use "unsigned" type for variant index. Improve readablity.
+ * src/scan-gram.l: Change error messages and add comments.
+ * src/symlist.h: symbol_list_null: New function decl.
+ * src/symlist.c: symbol_list_null: Implement here.
+ * tests/named-refs.at: Adjust for new error messages.
+
+2009-06-29 Eric Blake <ebb9@byu.net>
+
+ scan-code: avoid compiler warnings
+ * src/scan-code.l (parse_named_ref): Use correct specifiers.
+
+2009-06-29 Akim Demaille <demaille@gostai.com>
+
+ build: avoid concurrent extraction of calc++.
+ * examples/calc++/Makefile.am (calc.stamp): New.
+ Depend on it to create the sources of calc++ so that concurrent
+ builds don't launch several "extexi" in parallel.
+ Not only this is inefficient, this also builds incorrect sources
+ with several extractions mixed together.
+
+2009-06-27 Alex Rozenman <rozenman@gmail.com>
+
+ Implement support for named symbol references.
+ * src/parse-gram.y: Add new syntax (named_ref.opt).
+ * src/reader.c: Store named refs in symbol lists.
+ * src/reader.h: New argument for symbol_append and
+ action_append functions.
+ * src/scan-code.h: Add new field (named_ref) into
+ code_props data structure. Keeps named ref of midrule
+ actions.
+ * src/scan-code.l: Support for named refs in semantic
+ action code. New function 'parse_named_ref'.
+ * src/scan-gram.l: Support bracketed id.
+ * src/symlist.c: Store named refs in symbol lists.
+ * src/symlist.h: New field in symbol list: named_ref.
+ * src/named-ref.h: New file, a struct for named_ref.
+ * src/named-ref.cp: New file, named_ref_new function.
+ * src/local.mk: Add two new files.
+ * tests/testsuite.at: Include new test group:
+ * tests/named-refs.at: this new file.
+
+2009-06-25 Akim Demaille <demaille@gostai.com>
+
+ hash: check insertion for memory exhaustion.
+ * src/uniqstr.c (uniqstr_new): New.
+
+2009-06-11 Akim Demaille <demaille@gostai.com>
+
+ style changes.
+ * data/xslt/xml2dot.xsl, data/xslt/xml2xhtml.xsl: Space changes.
+ * src/print-xml.c: Style changes.
+ * tests/conflicts.at: Comment changes.
+
+2009-06-11 Akim Demaille <demaille@gostai.com>
+
+ xml: beware of user strings used to give a %prec to rules.
+ * tests/conflicts.at (%prec with user strings): New.
+ * src/gram.c (grammar_rules_print_xml): Escape the precedence for
+ XML output.
+
+2009-06-11 Akim Demaille <demaille@gostai.com>
+
+ hash: check insertion for memory exhaustion.
+ * src/muscle-tab.c (muscle_insert, muscle_grow)
+ * src/state.c (state_hash_insert): Check the return value of
+ hash_insert.
+
+2009-06-10 Akim Demaille <demaille@gostai.com>
+
+ deterministic test suite.
+ Some consistency checks on symbols are performed after all the
+ symbols were read, by an iteration over the symbol table. This
+ traversal is nondeterministic, which can be a problem for test
+ cases.
+ Avoid this.
+ Addresses another form of nondeterminism reported by Joel E. Denny.
+ http://lists.gnu.org/archive/html/bison-patches/2009-05/msg00023.html
+
+ * tests/input.at (Numbered tokens): Split the hexadecimal/decimal
+ test in two.
+ Use different file names for the three tests to make the
+ maintenance easier.
+
+2009-06-10 Akim Demaille <demaille@gostai.com>
+
+ deterministic user-token-number redeclaration errors.
+ Address nondeterminism reported by Joel E. Denny.
+ http://lists.gnu.org/archive/html/bison-patches/2009-05/msg00023.html
+
+ * src/uniqstr.h: Comment changes.
+ * src/location.h (boundary_cmp, location_cmp): New.
+ * src/symtab.c (user_token_number_redeclaration): New.
+ (symbol_translation): Use it.
+ * tests/input.at (Numbered tokens): Adjust the expected output.
+
+2009-05-25 Akim Demaille <demaille@gostai.com>
+
+ gnulib: update.
+ * gnulib: Update to latest.
+ * lib/.cvsignore, lib/.gitignore, m4/.cvsignore,
+ * m4/.gitignore: Regen.
+ * src/symtab.c (symbol_from_uniqstr, semantic_type_from_uniqstr):
+ Call xalloc_die on hash_insert failures.
+ Requested by the new __warn_unused_result__ attribute of
+ hash_insert.
+
2009-05-22 Joel E. Denny <jdenny@ces.clemson.edu>
Convert multiple variable definition warnings to complaints.
projects / bison.git / blobdiff