[palish]

Fixed. Thanks so much! I added % and = to the blacklist.

I'm searching for a fundamentally elegant solution. My current one is more of a kludge... though, if it fixes all cases and doesn't introduce problems, then maybe it's worth a few extra lines.

[thezilch]

The last example demonstrated more than the % and = punctuators failing your lexer, and then it doesn't demonstrate still more that would remain, including but not limited to...

  cat foo.js; jsmin <foo.js
  while(
    !true){true;}

  while(;!true){true;}

You might look through the token(izing) section of the ECMA's spec, specifically puctuators. http://www.ecma-international.org/publications/files/ECMA-ST...

[palish]

The "prior character blacklist" is now:

  & | + - * ? : % = ( [ { ,

Currently hunting for more problems, and a more elegant solution...

Offtopic, the reason I did this JSMin fork was just to challenge myself, not to make a political statement or anything like that. My cat was just diagnosed with feline lukemia. I know this project is a little silly, but it's been fantastic for keeping my mind off of real-world stuff. You're awesome for providing all of these examples; thank you.

More usefully, this serves to prove that Mr. Crockford was likely correct in his assessment.