Semicolon.js
github.com
github.com
cat foo.js; jsmin <foo.js
"foo" &&
!"foo"
"foo"&&;!"foo"EDIT: Fixed. Thanks for pointing that out. Let me know if you find anything else.
cat foo.js; jsmin <foo.js
var foo = "foo",
is_foo = foo?
!!foo:
"bar";
var foo="foo",is_foo=foo?;!!foo:"bar";As of now, semicolon substitution isn't performed if the character before the newline is any of: & | + - * ? :
cat foo.js; jsmin <foo.js
foo = [
!"foo",
!"foo" %
!!"bar",
1 ==
!"foo"
];
foo=[;!"foo",;!"foo"%;!!"bar",1==;!"foo"];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.
cat foo.js; jsmin <foo.js
while(
!true){true;}
while(;!true){true;}
& | + - * ? : % = ( [ { ,
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.
cat foo.js; jsmin <foo.js
do
!!1 && 2
while(0)
do;!!1&&2
while(0)On the other hand, is "do" the only reserved keyword which matters? Then it might be okay to special case that one instance as well.
There is no doubt that my approach is the wrong approach; I'm just curious whether it's easier to handle each of the ~dozen special cases than to fundamentally rewrite JSMin (as a full ECMAScript parser).
EDIT: Amusingly, I've special-cased the 'do' keyword in a fairly straightforward way, so now the code handles every example thus far. I wonder if these are the only special cases required, and whether they add any adverse side-effects. Also, you're extremely talented and creative.
! ^ < >
case else instanceof typeof