[jflex-users] mau be a bug with the negation operator

[Pascal H. <pas...@te...>]

hello,
   I found an issue with the negation operator "!"
   With the following specification, string "baba" is not matched
   by either EXP ou !EXP .

Pascal Hennequin


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%%
%standalone
%{
void ECHO(String cat) { System.out.print("["+cat+":"+yytext()+"]"); }
%}

EXP = ( [^a] [^]* [^a] )
ALL = {EXP} | ! {EXP}  

%%
{ALL}  { ECHO("1"); }
baba   { ECHO("2"); }
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