Mismatch between parsertl and bison for shift/reduce conflicts

[mingodad]

While trying to improve the output of parsertl debug/dump to match the bison output I found that on the grammar attached bellow bison reports:

bison-nb -v lua-pluto.g.y
lua-pluto.g.y: warning: 64 shift/reduce conflicts [-Wconflicts-sr]
lua-pluto.g.y: note: rerun with option '-Wcounterexamples' to generate conflict counterexamples

And gram_grep report only 12:

./gram_grep -f lua-pluto.g test.sql
Warnings from config lua-pluto.g :
SHIFT (args -> . '(' ')') (args -> . '(' expr_comma_list ')')/REDUCE (stat -> funccall) conflict.
SHIFT (safe_name_access -> NAME . '?')/REDUCE (safe_name_access -> NAME) conflict.
SHIFT (funccall -> var . ':' NAME args)/REDUCE (exp -> var) conflict.
SHIFT (args -> . '(' ')') (args -> . '(' expr_comma_list ')')/REDUCE (exp -> var) conflict.
SHIFT (funccall -> funccall . ':' NAME args)/REDUCE (exp -> funccall) conflict.
SHIFT (args -> . '(' ')') (args -> . '(' expr_comma_list ')')/REDUCE (exp -> funccall) conflict.
SHIFT (safe_name_access -> NAME . '?')/REDUCE (safe_name_access -> NAME) conflict.
SHIFT (funccall -> funccall . ':' NAME args)/REDUCE (exp -> funccall PIPE funccall) conflict.
SHIFT (args -> . '(' ')') (args -> . '(' expr_comma_list ')')/REDUCE (exp -> funccall PIPE funccall) conflict.
SHIFT (funccall -> '(' exp ')' . ':' NAME args)/REDUCE (exp -> '(' exp ')') conflict.
SHIFT (args -> . '(' ')') (args -> . '(' expr_comma_list ')')/REDUCE (exp -> '(' exp ')') conflict.
SHIFT (var -> var '[' exp ']' . '?')/REDUCE (var -> var '[' exp ']') conflict.

lua-pluto.zip

[mingodad]

Would be nice to have a dump for the parser state machine like:
bison:

State 14

   63 safe_name_access: NAME •
   64                 | NAME • '?'

    '?'  shift, and go to state 75

    '?'       [reduce using rule 63 (safe_name_access)]
    $default  reduce using rule 63 (safe_name_access)

or kmyacc (https://github.com/Kray-G/kmyacc):

state 178
178: shift/reduce conflict (shift 284, reduce 63) on '?'
	(63) safe_name_access : NAME .
	(64) safe_name_access : NAME . '?'

	'?'		shift 284 and reduce (64)
	.		reduce (63)