parse.y: lex_state trace by yydebug

* parse.y (trace_lex_state): trace lex_state changes if yydebug is
  set, and send the messages to rb_stdout.
* parse.y (rb_parser_printf): store YYPRINTF messages per lines
  so that lex_state traces do not mix.
* tool/ytab.sed: add parser argument to yy_stack_print too.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53095 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 0 deletions

diff --git a/node.h b/node.h
index 4d632003a9..05c2285a2e 100644
--- a/node.h
+++ b/node.h
@@ -506,6 +506,7 @@ void *rb_parser_malloc(struct parser_params *, size_t);
 void *rb_parser_realloc(struct parser_params *, void *, size_t);
 void *rb_parser_calloc(struct parser_params *, size_t, size_t);
 void rb_parser_free(struct parser_params *, void *);
+void rb_parser_printf(struct parser_params *parser, const char *fmt, ...);
 
 RUBY_SYMBOL_EXPORT_END