* data/yacc.c (yyparse): Wrap the final return from yyparse inside YYID

[bison.git] / TODO

diff --git a/TODO b/TODO
index be43580eb9492b019eea27c54d7c2a3c0fa28ea5..76ca73627511b6fa036403a2ba565367b8f69df2 100644 (file)
--- a/TODO
+++ b/TODO
@@ -12,18 +12,16 @@ They should not: it is not documented.  But if they need to, let's
 find something clean (not like YYLSP_NEEDED...).
 
 
 find something clean (not like YYLSP_NEEDED...).
 
 

-* URGENT: Documenting C++ output
-Write a first documentation for C++ output.
-
-

 * Documentation
 Before releasing, make sure the documentation ("Understanding your
 parser") refers to the current `output' format.
 
 * Documentation
 Before releasing, make sure the documentation ("Understanding your
 parser") refers to the current `output' format.
 

+* lalr1.cc
+** vector
+Move to using vector, drop stack.hh.

 
 

-* GLR & C++
-Currently, the GLR parser cannot compile with a C++ compiler.
-
+** I18n
+Catch up with yacc.c.

 
 * Report
 
 
 * Report
 


@@ -52,14 +50,7 @@ DeRemer and Penello: they already provide the algorithm.
 
 * Extensions
 
 
 * Extensions
 

-** %destructor
-I think we should document it as experimental, and allow its use in
-the next releases.  But we also need to port it to GLR.  What about
-lalr1.cc?  Well, read what Hans reported, maybe we don't want
-%detructor.  On the other hand, there is no reason not to provide it:
-users can avoid its use.
-
-** $foo
+** Labeling the symbols

 Have a look at the Lemon parser generator: instead of $1, $2 etc. they
 can name the values.  This is much more pleasant.  For instance:
 
 Have a look at the Lemon parser generator: instead of $1, $2 etc. they
 can name the values.  This is much more pleasant.  For instance:
 


@@ -69,6 +60,21 @@ I love this.  I have been bitten too often by the removal of the
 symbol, and forgetting to shift all the $n to $n-1.  If you are
 unlucky, it compiles...
 
 symbol, and forgetting to shift all the $n to $n-1.  If you are
 unlucky, it compiles...
 

+But instead of using $a etc., we can use regular variables.  And
+instead of using (), I propose to use `:' (again).  Paul suggests
+supporting `->' in addition to `:' to separate LHS and RHS. In other
+words:
+
+       r:exp -> a:exp '+' b:exp { r = a + b; };
+
+That requires an significant improvement of the grammar parser.  Using
+GLR would be nice.  It also requires that Bison know the type of the
+symbols (which will be useful for %include anyway).  So we have some
+time before...
+
+Note that there remains the problem of locations: `@r'?
+
+

 ** $-1
 We should find a means to provide an access to values deep in the
 stack.  For instance, instead of
 ** $-1
 We should find a means to provide an access to values deep in the
 stack.  For instance, instead of


@@ -81,32 +87,6 @@ we should be able to have:
 
 Or something like this.
 
 
 Or something like this.
 

-** yysymprint interface
-It should be improved, in particular when using Bison features such as
-locations, and YYPARSE_PARAMS.  For the time being, it is almost
-recommended to yyprint to steal internal variables...
-
-** Several %unions
-I think this is a pleasant (but useless currently) feature, but in the
-future, I want a means to %include other bits of grammars, and _then_
-it will be important for the various bits to define their needs in
-%union.
-
-When implementing multiple-%union support, bare the following in mind:
-
-- when --yacc, this must be flagged as an error.  Don't make it fatal
-  though.
-
-- The #line must now appear *inside* the definition of yystype.
-  Something like
-
-       {
-       #line 12 "foo.y"
-         int ival;
-       #line 23 "foo.y"
-         char *sval;
-       }
-

 ** %if and the like
 It should be possible to have %if/%else/%endif.  The implementation is
 not clear: should it be lexical or syntactic.  Vadim Maslow thinks it
 ** %if and the like
 It should be possible to have %if/%else/%endif.  The implementation is
 not clear: should it be lexical or syntactic.  Vadim Maslow thinks it


@@ -197,28 +177,16 @@ Paul notes:
        the source code.  This should get fixed.
 
 * --graph
        the source code.  This should get fixed.
 
 * --graph

-Show reductions.       []
+Show reductions.

 
 * Broken options ?
 
 * Broken options ?

-** %no-parser          []
-** %token-table                []
-** Skeleton strategy.  []
-Must we keep %no-parser?
-            %token-table?
+** %no-parser
+** %token-table
+** Skeleton strategy
+Must we keep %no-parser?  %token-table?

 
 * src/print_graph.c
 
 * src/print_graph.c

-Find the best graph parameters.        []
-
-* doc/bison.texinfo
-** Update
-informations about ERROR_VERBOSE.      []
-** Add explanations about
-skeleton muscles.      []
-%skeleton.             []
-
-* testsuite
-** tests/pure-parser.at        []
-New tests.
+Find the best graph parameters.

 
 * BTYacc
 See if we can integrate backtracking in Bison.  Charles-Henri de
 
 * BTYacc
 See if we can integrate backtracking in Bison.  Charles-Henri de


@@ -339,16 +307,17 @@ the parser with a means to create the (visual) parse tree.
 
 -----
 
 
 -----
 

-Copyright (C) 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
+Copyright (C) 2001, 2002, 2003, 2004, 2006 Free Software Foundation,
+Inc.

 
 

-This file is part of GNU Bison.
+This file is part of Bison, the GNU Compiler Compiler.

 
 

-GNU Bison is free software; you can redistribute it and/or modify
+Bison is free software; you can redistribute it and/or modify

 it under the terms of the GNU General Public License as published by
 the Free Software Foundation; either version 2, or (at your option)
 any later version.
 
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation; either version 2, or (at your option)
 any later version.
 

-GNU Bison is distributed in the hope that it will be useful,
+Bison is distributed in the hope that it will be useful,

 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.