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%define push_pull -> %define api.push_pull. Discussed starting at

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<http://lists.gnu.org/archive/html/bison-patches/2007-09/msg00005.html>.
* data/push.c: Expect the new name.
* data/yacc.c: Likewise.
* doc/bison.texinfo (Push Decl): Update.
(Decl Summary): Update %define entry.
(Push Parser Function): Update.
(Pull Parser Function): Update.
(Parser Create Function): Update.
(Parser Delete Function): Update.
* tests/calc.at (Simple LALR Calculator): Update.
* tests/input.at (%define enum variables): Update.
* tests/push.at (Push Parsing: Memory Leak for Early Deletion): Update.
(Push Parsing: Multiple impure instances): Update.
(Push Parsing: Unsupported Skeletons): Update.
* tests/torture.at (Exploding the Stack Size with Alloca): Update.
(Exploding the Stack Size with Malloc): Update.

* NEWS (2.3a+): Add an entry for the push parser, and clean up the
other entries some.
This commit is contained in:
Joel E. Denny
2007-10-28 20:11:35 +00:00
parent 32f19b6b47
commit c373bf8bb8
9 changed files with 96 additions and 51 deletions
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55
NEWS
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@@ -3,7 +3,35 @@ Bison News
Changes in version 2.3a+ (????-??-??):
* Previously, Bison sometimes generated parser tables containing unreachable
* Push Parsing
Bison can now generate an LALR(1) parser in C with a push interface. That
is, instead of invoking yyparse, which pulls tokens from `yylex', you can
push one token at a time to the parser using `yypush_parse', which will
return to the caller after processing each token. By default, the push
interface is disabled. Either of the following directives will enable it:
%define api.push_pull "push" // Just push; does not require yylex.
%define api.push_pull "both" // Push and pull; requires yylex.
See the new section `A Push Parser' in the Bison manual for details.
* The -g and --graph options now output graphs in Graphviz DOT format,
not VCG format.
* An experimental directive %language specifies the language of the
generated parser, which can be C (the default) or C++. This
directive affects the skeleton used, and the names of the generated
files if the grammar file's name ends in ".y".
* The grammar file may now specify the name of the parser header file using
%defines. For example:
%defines "parser.h"
* Unreachable State Removal
Previously, Bison sometimes generated parser tables containing unreachable
states. A state can become unreachable during conflict resolution if Bison
disables a shift action leading to it from a predecessor state. Bison now:
@@ -23,7 +51,9 @@ Changes in version 2.3a+ (????-??-??):
See the %define entry in the `Bison Declaration Summary' in the Bison manual
for further discussion.
* When instructed to generate a `.output' file including lookahead sets
* Lookahead Set Correction in the `.output' Report
When instructed to generate a `.output' file including lookahead sets
(using `--report=lookahead', for example), Bison now prints each reduction's
lookahead set only next to the associated state's one item that (1) is
associated with the same rule as the reduction and (2) has its dot at the end
@@ -32,19 +62,6 @@ Changes in version 2.3a+ (????-??-??):
bug affected only the `.output' file and not the generated parser source
code.
* The -g and --graph options now output graphs in Graphviz DOT format,
not VCG format.
* An experimental directive %language specifies the language of the
generated parser, which can be C (the default) or C++. This
directive affects the skeleton used, and the names of the generated
files if the grammar file's name ends in ".y".
* The grammar file may now specify the name of the parser header file using
%defines. For example:
%defines "parser.h"
* The `=' that used to be required in the following directives is now
deprecated:
@@ -57,7 +74,9 @@ Changes in version 2.3a+ (????-??-??):
%define NAME "VALUE"
* Bison 2.3a provided a new set of directives as a more flexible alternative to
* An Alternative to `%{...%}' -- `%code QUALIFIER {CODE}'
Bison 2.3a provided a new set of directives as a more flexible alternative to
the traditional Yacc prologue blocks. Those have now been consolidated into
a single %code directive with an optional qualifier field, which identifies
the purpose of the code and thus the location(s) where Bison should generate
@@ -96,7 +115,9 @@ Changes in version 2.3a+ (????-??-??):
To enable these warnings, specify the flag `--warnings=midrule-values' or
`-W', which is a synonym for `--warnings=all'.
* Bison now recognizes two separate kinds of default %destructor's and
* Default %destructor or %printer with `<*>' or `<>'
Bison now recognizes two separate kinds of default %destructor's and
%printer's:
1. Place `<*>' in a %destructor/%printer symbol list to define a default