I've made another syntax highlighting for Notepad++ from scratch. It looks almost like original NP++ highlighting. As compared with another highlighting it hasn't bug with escaping symbols, and has all predefined constants & operators.

Installing: Notepad++ -> Language -> Define your language... -> Import and restart Notepad++.

Version: 2.0

ChangeLog: 2.0 -- Added all predefined constants with Turquoise color(the same as in standard sourcepawn highlighting) -- Added support separating big numbers with underscore: new z = 1_000_000 1.0 - 11 views

P.S: As you can see in preview, last number in color array isn't looks correctly. It will be fixed in new revisions of Notepad++.