+
+* Semantic parser
+ This old option, which has been broken for ages, is removed.
+
+* New translation
+ Croatian, thanks to Denis Lackovic.
+
+* Incorrect token definitions
+ When fed with `%token 'a' "A"', Bison used to output `#define 'a' 65'.
+
+* Token definitions as enums
+ Tokens are output both as the traditional #define's, and, provided
+ the compiler supports ANSI C or is a C++ compiler, as enums.
+ This helps debuggers producing symbols instead of values.
+
+* Reports
+ In addition to --verbose, bison supports --report=THINGS, which
+ produces additional information:
+ - itemset
+ complete the core item sets with their closure
+ - lookahead
+ explicitly associate lookaheads to items
+ - solved
+ describe shift/reduce conflicts solving.
+ Bison used to systematically output this information on top of
+ the report. Solved conflicts are now attached to their states.
+
+\f
+Changes in version 1.35, 2002-03-25:
+
+* C Skeleton
+ Some projects use Bison's C parser with C++ compilers, and define
+ YYSTYPE as a class. The recent adjustment of C parsers for data
+ alignment and 64 bit architectures made this impossible.
+
+ Because for the time being no real solution for C++ parser
+ generation exists, kludges were implemented in the parser to
+ maintain this use. In the future, when Bison has C++ parsers, this
+ kludge will be disabled.
+
+ This kludge also addresses some C++ problems when the stack was
+ extended.
+
+\f
+Changes in version 1.34, 2002-03-12:
+
+* File name clashes are detected
+ $ bison foo.y -d -o foo.x
+ fatal error: header and parser would both be named `foo.x'
+
+* A missing `;' at the end of a rule triggers a warning
+ In accordance with POSIX, and in agreement with other
+ Yacc implementations, Bison will mandate this semicolon in the near
+ future. This eases the implementation of a Bison parser of Bison
+ grammars by making this grammar LALR(1) instead of LR(2). To
+ facilitate the transition, this release introduces a warning.
+
+* Revert the C++ namespace changes introduced in 1.31, as they caused too
+ many portability hassles.
+
+* DJGPP support added.
+
+* Fix test suite portability problems.
+\f
+Changes in version 1.33, 2002-02-07:
+
+* Fix C++ issues
+ Groff could not be compiled for the definition of size_t was lacking
+ under some conditions.
+
+* Catch invalid @n
+ As is done with $n.
+\f
+Changes in version 1.32, 2002-01-23:
+
+* Fix Yacc output file names
+
+* Portability fixes
+
+* Italian, Dutch translations
+\f
+Changes in version 1.31, 2002-01-14:
+
+* Many Bug Fixes
+
+* GNU Gettext and %expect
+ GNU Gettext asserts 10 s/r conflicts, but there are 7. Now that
+ Bison dies on incorrect %expectations, we fear there will be
+ too many bug reports for Gettext, so _for the time being_, %expect
+ does not trigger an error when the input file is named `plural.y'.
+
+* Use of alloca in parsers
+ If YYSTACK_USE_ALLOCA is defined to 0, then the parsers will use
+ malloc exclusively. Since 1.29, but was not NEWS'ed.
+
+ alloca is used only when compiled with GCC, to avoid portability
+ problems as on AIX.
+
+* When the generated parser lacks debugging code, YYDEBUG is now 0
+ (as POSIX requires) instead of being undefined.
+
+* User Actions
+ Bison has always permitted actions such as { $$ = $1 }: it adds the
+ ending semicolon. Now if in Yacc compatibility mode, the semicolon
+ is no longer output: one has to write { $$ = $1; }.
+
+* Better C++ compliance
+ The output parsers try to respect C++ namespaces.
+ [This turned out to be a failed experiment, and it was reverted later.]
+
+* Reduced Grammars
+ Fixed bugs when reporting useless nonterminals.
+
+* 64 bit hosts
+ The parsers work properly on 64 bit hosts.
+
+* Error messages
+ Some calls to strerror resulted in scrambled or missing error messages.
+
+* %expect
+ When the number of shift/reduce conflicts is correct, don't issue
+ any warning.
+
+* The verbose report includes the rule line numbers.
+
+* Rule line numbers are fixed in traces.
+
+* Swedish translation
+
+* Parse errors
+ Verbose parse error messages from the parsers are better looking.
+ Before: parse error: unexpected `'/'', expecting `"number"' or `'-'' or `'(''
+ Now: parse error: unexpected '/', expecting "number" or '-' or '('
+
+* Fixed parser memory leaks.
+ When the generated parser was using malloc to extend its stacks, the
+ previous allocations were not freed.
+
+* Fixed verbose output file.
+ Some newlines were missing.
+ Some conflicts in state descriptions were missing.
+
+* Fixed conflict report.
+ Option -v was needed to get the result.
+
+* %expect
+ Was not used.
+ Mismatches are errors, not warnings.
+
+* Fixed incorrect processing of some invalid input.
+
+* Fixed CPP guards: 9foo.h uses BISON_9FOO_H instead of 9FOO_H.
+
+* Fixed some typos in the documentation.
+
+* %token MY_EOF 0 is supported.
+ Before, MY_EOF was silently renumbered as 257.
+
+* doc/refcard.tex is updated.
+
+* %output, %file-prefix, %name-prefix.
+ New.
+
+* --output
+ New, aliasing `--output-file'.
projects / bison.git / blobdiff