UnicodeSyntax does not get highlighted

[kerscher]

When using the UnicodeSyntax language pragma, one should be able to substitute some ASCII sequences for Unicode characters as shown here and on the following table:

ASCII	Unicode alternative	Code point	Name
::	::	0x2237	PROPORTION
=>	⇒	0x21D2	RIGHTWARDS DOUBLE ARROW
forall	∀	0x2200	FOR ALL
->	→	0x2192	RIGHTWARDS ARROW
<-	←	0x2190	LEFTWARDS ARROW
-<	↢	0x2919	LEFTWARDS ARROW-TAIL
>-	↣	0x291A	RIGHTWARDS ARROW-TAIL
-<<	⤛	0x291B	LEFTWARDS DOUBLE ARROW-TAIL
>>-	⤜	0x291C	RIGHTWARDS DOUBLE ARROW-TAIL
*	★	0x2605	BLACK STAR

However, it appears that the built-in syntax highlighter is unaware of this:

(Note that stack-ide works regardless — although not shown here the types are correct on the status bar)

Maybe it would be a good idea to override the default and use a new syntax highlighter, such as the one used by SublimeHaskell but augmented with this?

[kerscher]

I've sent a PR to solve this partially in the default Haskell package: sublimehq/Packages#110

Is there interest in further work on this?

[lukexi]

Sweet, thanks Yghor — yeah, it would be wonderful to get all the improvements from SublimeHaskell merged into the default Haskell package for everyone's benefit. I can't enumerate them all off the top of my head but I know there are plenty of little bugs in the highlighting : )

[lukexi]

(and I'm certainly down to adopt the SublimeHaskell tmLanguage file here in the meantime)

[kerscher]

Cool. It's ported with some additional niceties. :)