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Rely on the state stack to display reduction traces.

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To display rhs symbols before a reduction, we used information about the rule
reduced, which required the tables yyrhs and yyprhs.  Now use rely only on the
state stack to get the same information.

	* data/lalr1.cc (b4_rhs_data, b4_rhs_state): New.
	Use them.
	(parser::yyrhs_, parser::yyprhs_): Remove.
	(parser::yy_reduce_print_): Use the state stack.
This commit is contained in:
Akim Demaille
2008-07-31 12:50:42 +02:00
parent e1f93869da
commit 33c195cc37
2 changed files with 32 additions and 14 deletions
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@@ -1,3 +1,15 @@
2008-11-09 Akim Demaille <demaille@gostai.com>
Rely on the state stack to display reduction traces.
To display rhs symbols before a reduction, we used information about the rule
reduced, which required the tables yyrhs and yyprhs. Now use rely only on the
state stack to get the same information.
* data/lalr1.cc (b4_rhs_data, b4_rhs_state): New.
Use them.
(parser::yyrhs_, parser::yyprhs_): Remove.
(parser::yy_reduce_print_): Use the state stack.
2008-11-09 Akim Demaille <demaille@gostai.com>
Fuse yyval and yyloc into yylhs.