X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/ff1b7a13334749a40ad51b37db1aa49a2cc6bc86..e35cd6def7a19423a5f0fc566d844f6019df111a:/TODO diff --git a/TODO b/TODO index 13c1f858..978b5c6f 100644 --- a/TODO +++ b/TODO @@ -1,4 +1,17 @@ * Short term +** Graphviz display code thoughts +The code for the --graph option is over two files: print_graph, and +graphviz. I believe this is because Bison used to also produce VCG graphs, +but since this is no longer true, maybe we could consider these files for +fusion. + +Little effort factoring seems to have been given to factoring in these files, +and their print-xml and print counterpart. We would very much like to re-use +the pretty format of states from .output in the .dot + +Also, the underscore in print_graph.[ch] isn't very fitting considering +the dashes in the other filenames. + ** Variable names. What should we name `variant' and `lex_symbol'? @@ -125,21 +138,6 @@ 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 +235,6 @@ 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 +260,6 @@ 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