DJGPP specific replacement file for lib/subpipe.h.

[bison.git] / NEWS

diff --git a/NEWS b/NEWS
index 52064e7f22c21b0dd56c36220b489e8674cb9a47..15c7c937058bb600ef1d30b144039821912c5abb 100644 (file)
--- a/NEWS
+++ b/NEWS
@@ -1,7 +1,20 @@
 Bison News
 ----------
 
-Changes in the next version (not yet released):
+Changes in version 2.1a:
+
+* lalr1.cc: The token and value types are now class members.
+  The tokens where defined as free form enums and cpp macros.  YYSTYPE
+  was defined as a free form union.  Both are now class members:
+  tokens are enumerations of the `yy::parser::token' struct, and the
+  semantic values have the `yy::parser::semantic_type' type.
+
+  If you do not want or can update to this scheme, the directive
+  `%define "global_tokens_and_yystype" "1"' triggers the global
+  definition of tokens and YYSTYPE.
+
+
+Changes in version 2.1, 2005-09-16:
 
 * Bison-generated parsers now support the translation of diagnostics like
   "syntax error" into languages other than English.  The default
@@ -15,7 +28,9 @@ Changes in the next version (not yet released):
   has replaced "parser stack overflow", as the old message was not
   always accurate for modern Bison-generated parsers.
 
-The following change was also in version 2.0a, 2005-05-22:
+* Destructors are now called when the parser aborts, for all symbols left
+  behind on the stack.  Also, the start symbol is now destroyed after a
+  successful parse.  In both cases, the behavior was formerly inconsistent.
 
 * When generating verbose diagnostics, Bison-generated parsers no longer
   quote the literal strings associated with tokens.  For example, for
@@ -421,6 +436,8 @@ Changes in version 1.31, 2002-01-14:
   alloca is used only when compiled with GCC, to avoid portability
   problems as on AIX.
 
+* yyparse now returns 2 if memory is exhausted; formerly it dumped core.
+
 * When the generated parser lacks debugging code, YYDEBUG is now 0
   (as POSIX requires) instead of being undefined.