> Le 30 août 2020 à 17:17, Ervin Hegedüs <airw...@gmail.com> a écrit :
> 
> in my parser code I got:
> 
> #ifdef YYDEBUG
>  yydebug = 1;
> #endif
> 
> and I compiled the code:
> bison -d myparser.y
> flex -d mylexer.l
> gcc ...
> 
> the output is:
> 
> --accepting rule at line 52 ("ConfKey2")
> --accepting rule at line 67 (" ")
> --accepting rule at line 55 ("fo")
> This is a configuration directive and argument: 'ConfKey2' 'fo'
> --accepting rule at line 68 ("'")
> UNKNOWN TOKEN: ''' in file: badconf3.conf, line 1, state: ST_CONFIG_DIRECTIVE
> --accepting rule at line 55 ("o")
> Parse error: syntax error in file , line 1

These are not Bison's traces, only Flex's ones.  You need to enable Bison 
traces (see the documentation).

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