X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/fc25770394e7dd123c9c85e25d64b6aeb0d75e04..9e41ba026ab2e6c7e3a56c4a092a48059be05bc4:/TODO?ds=sidebyside diff --git a/TODO b/TODO index 13c1f858..dfd6cfe3 100644 --- a/TODO +++ b/TODO @@ -2,13 +2,6 @@ ** Variable names. What should we name `variant' and `lex_symbol'? -** Use b4_symbol in all the skeleton -Move its definition in the more standard places and deploy it in other -skeletons. Then remove the older system, including the tables -generated by output.c - -** Update the documentation on gnu.org - ** Get rid of fake #lines [Bison: ...] Possibly as simple as checking whether the column number is nonnegative. @@ -39,10 +32,6 @@ as lr0.cc, why upper case? Enhance bench.pl with %b to run different bisons. * Various -** Warnings -Warnings about type tags that are used in printer and dtors, but not -for symbols? - ** YYERRCODE Defined to 256, but not used, not documented. Probably the token number for the error token, which POSIX wants to be 256, but which @@ -88,9 +77,6 @@ so both 256 and 257 are "mysterious". "\"end of command\"", "error", "$undefined", "\"=\"", "\"break\"", -** YYFAIL -It is seems to be *really* obsolete now, shall we remove it? - ** yychar == yyempty_ The code in yyerrlab reads: @@ -125,21 +111,6 @@ we do the same in yacc.c. The code bw glr.c and yacc.c is really alike, we can certainly factor some parts. -* Header guards - -From François: should we keep the directory part in the CPP guard? - - -* Yacc.c: CPP Macros - -Do some people use YYPURE, YYLSP_NEEDED like we do in the test suite? -They should not: it is not documented. But if they need to, let's -find something clean (not like YYLSP_NEEDED...). - - -* Documentation -Before releasing, make sure the documentation ("Understanding your -parser") refers to the current `output' format. * Report @@ -237,12 +208,6 @@ this issue. Does anybody have it? Some history of Bison and some bibliography would be most welcome. Are there any Texinfo standards for bibliography? -** %printer -Wow, %printer is not documented. Clearly mark YYPRINT as obsolete. - -* Java, Fortran, etc. - - * Coding system independence Paul notes: @@ -268,29 +233,6 @@ Show reductions. ** Skeleton strategy Must we keep %token-table? -* BTYacc -See if we can integrate backtracking in Bison. Charles-Henri de -Boysson has been working on this, but never gave -the results. - -Vadim Maslow, the maintainer of BTYacc was once contacted. Adjusting -the Bison grammar parser will be needed to support some extra BTYacc -features. This is less urgent. - -** Keeping the conflicted actions -First, analyze the differences between byacc and btyacc (I'm referring -to the executables). Find where the conflicts are preserved. - -** Compare with the GLR tables -See how isomorphic the way BTYacc and the way the GLR adjustments in -Bison are compatible. *As much as possible* one should try to use the -same implementation in the Bison executables. I insist: it should be -very feasible to use the very same conflict tables. - -** Adjust the skeletons -Import the skeletons for C and C++. - - * Precedence ** Partial order