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Declare %code to be a permanent feature.

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* NEWS (2.4.2): Here.
* doc/bison.texinfo (Prologue Alternatives): Don't say it's
experimental.
(Decl Summary): Likewise.
(cherry picked from commit cefb18280b)
This commit is contained in:
Joel E. Denny
2009-05-01 02:51:31 -04:00
parent 6721294104
commit 98a345a219
3 changed files with 31 additions and 11 deletions
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NEWS
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@@ -93,6 +93,29 @@ Bison News
* Changes in version 2.4.2 (????-??-??):
** %code is now a permanent feature.
A traditional Yacc prologue directive is written in the form:
%{CODE%}
To provide a more flexible alternative, Bison 2.3b introduced the
%code directive with the following forms for C/C++:
%code {CODE}
%code requires {CODE}
%code provides {CODE}
%code top {CODE}
These forms are now considered permanent features of Bison. See the
%code entries in the section "Bison Declaration Summary" in the Bison
manual for a summary of their functionality. See the section
"Prologue Alternatives" for a detailed discussion including the
advantages of %code over the traditional Yacc prologue directive.
Bison's Java feature as a whole including its current usage of %code
is still considered experimental.
* Changes in version 2.4.1 (2008-12-11):
** In the GLR defines file, unexpanded M4 macros in the yylval and yylloc