X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/886a425c6fff79e36f4bba3be8f98ae85daa8d6f..3b0ee3aa8bcf07bf1dfc67838c51971e7380598f:/NEWS?ds=sidebyside diff --git a/NEWS b/NEWS index bfc31882..1a1310b0 100644 --- a/NEWS +++ b/NEWS @@ -1,17 +1,41 @@ Bison News ---------- -Changes in version 1.75b: +Changes in version 1.75d: -* Bison now parses C99 lexical constructs like digraphs, UCNs, and - backslash-newline within C escape sequences, as POSIX now requires. +* Yacc library now available + Bison now installs a small library liby.a containing implementations + of Yacc-compatible yyerror and main functions. This library is + normally not useful, but POSIX requires it. -Changes in version 1.75a, 2002-10-24: +* %lex-param, %parse-param + These now take just one operand, not two. -* Bison can no longer be built by a K&R C compiler; it requires C89 or - later to be built. This change originally took place a few versions - ago, but nobody noticed until we recently asked someone to try - building Bison with a K&R C compiler. +Changes in version 1.75c, 2002-11-25: + +* "parse error" -> "syntax error" + Bison now uniformly uses the term "syntax error"; formerly, the code + and manual sometimes used the term "parse error" instead. POSIX + requires "syntax error" in diagnostics, and it was thought better to + be consistent. + +* "parsing stack overflow..." -> "parser stack overflow" + GLR parsers now report "parser stack overflow" as per the Bison manual. + +* GLR and inline + Users of Bison have to decide how they handle the portability of the + C keyword `inline'. + +Changes in version 1.75b, 2002-11-13: + +* %destructor + It is now possible to reclaim the memory associated to symbols + discarded during error recovery. This feature is still experimental. + +* Bison now parses C99 lexical constructs like UCNs and + backslash-newline within C escape sequences, as POSIX 1003.1-2001 requires. + +* --no-line works properly. * %error-verbose This new directive is preferred over YYERROR_VERBOSE. @@ -21,6 +45,22 @@ Changes in version 1.75a, 2002-10-24: In addition, they provide a means for yyerror to remain pure, and to access to the current location. + #defining yyerror to steal internal variables is strongly + discouraged. It is not guaranteed to work for ever. + +* #line + Bison now recognizes #line in its input, and forwards them. + +* #line + File names are properly escaped. E.g. foo\bar.y give #line 123 "foo\\bar.y". + +Changes in version 1.75a, 2002-10-24: + +* Bison can no longer be built by a K&R C compiler; it requires C89 or + later to be built. This change originally took place a few versions + ago, but nobody noticed until we recently asked someone to try + building Bison with a K&R C compiler. + Changes in version 1.75, 2002-10-14: * Bison should now work on 64-bit hosts. @@ -149,9 +189,9 @@ Changes in version 1.50, 2002-10-04: the user symbol is used in the reports, the graphs, and the verbose error messages instead of `$end', which remains being the default. For instance - %token YYEOF 0 + %token MYEOF 0 or - %token YYEOF 0 "end of file" + %token MYEOF 0 "end of file" * Semantic parser This old option, which has been broken for ages, is removed. @@ -331,8 +371,8 @@ Changes in version 1.31, 2002-01-14: Changes in version 1.30, 2001-10-26: -* `--defines' and `--graph' have now an optionnal argument which is the - output file name. `-d' and `-g' do not change, they do not take any +* `--defines' and `--graph' have now an optional argument which is the + output file name. `-d' and `-g' do not change; they do not take any argument. * `%source_extension' and `%header_extension' are removed, failed