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d: add push parser support

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Support the push-pull directive with the options pull, push and both.
Pull remains the default option.

* data/skeletons/d.m4: Add user aliases for the push parser's return
values: PUSH_MORE, ABORT, ACCEPT.
* data/skeletons/lalr1.d: Add push parser support.
* tests/calc.at: Test it.
This commit is contained in:
Adela Vais
2021-01-29 16:56:13 +02:00
committed by Akim Demaille
parent 4bd4cdf377
commit 9ba3c5ceb9
3 changed files with 204 additions and 54 deletions
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5
data/skeletons/d.m4
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@@ -573,7 +573,10 @@ m4_define([b4_public_types_declare],
alias Symbol = ]b4_parser_class[.Symbol;
alias Value = ]b4_yystype[;]b4_locations_if([[
alias Location = ]b4_location_type[;
alias Position = ]b4_position_type[;]])[
alias Position = ]b4_position_type[;]b4_push_if([[
alias PUSH_MORE = ]b4_parser_class[.YYPUSH_MORE;
alias ABORT = ]b4_parser_class[.YYABORT;
alias ACCEPT = ]b4_parser_class[.YYACCEPT;]])[]])[
]])