X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/d27c5e6534e7ee2fc402ae0d0b59d6316a9da2ad..f6b561d9f9cbc6fc95bbb86518372a5cb52f45a6:/TODO

diff --git a/TODO b/TODO
index 4f4674f7..40127468 100644
--- a/TODO
+++ b/TODO
@@ -1,12 +1,45 @@
 * Short term
-** scan-code.l
-Avoid variables for format strings, as then GCC cannot check them.
-show_sub_messages should call show_sub_message.
+
+** push-parser
+Check it too when checking the different kinds of parsers.  And be
+sure to check that the initial-action is performed once per parsing.
 
 ** m4 names
 b4_shared_declarations is no longer what it is.  Make it
 b4_parser_declaration for instance.
 
+** yychar in lalr1.cc
+There is a large difference bw maint and master on the handling of
+yychar (which was removed in lalr1.cc).  See what needs to be
+back-ported.
+
+
+    /* User semantic actions sometimes alter yychar, and that requires
+       that yytoken be updated with the new translation.  We take the
+       approach of translating immediately before every use of yytoken.
+       One alternative is translating here after every semantic action,
+       but that translation would be missed if the semantic action
+       invokes YYABORT, YYACCEPT, or YYERROR immediately after altering
+       yychar.  In the case of YYABORT or YYACCEPT, an incorrect
+       destructor might then be invoked immediately.  In the case of
+       YYERROR, subsequent parser actions might lead to an incorrect
+       destructor call or verbose syntax error message before the
+       lookahead is translated.  */
+
+    /* Make sure we have latest lookahead translation.  See comments at
+       user semantic actions for why this is necessary.  */
+    yytoken = yytranslate_ (yychar);
+
+
+** $ and others in epilogue
+A stray $ is a warning in the actions, but an error in the epilogue.
+IMHO, it should not even be a warning in the epilogue.
+
+** stack.hh
+Get rid of it.  The original idea is nice, but actually it makes
+the code harder to follow, and uselessly different from the other
+skeletons.
+
 ** Variable names.
 What should we name `variant' and `lex_symbol'?