Represents a constant.
See also:
https://haxe.org/manual/expression-constants.html
CInt(v:String)
Represents an integer literal.
CFloat(f:String)
Represents a float literal.
CString(s:String, kind:StringLiteralKind)
Represents a string literal.
CIdent(s:String)
Represents an identifier.
CRegexp(r:String, opt:String)
Represents a regular expression literal.
Example: ~/haxe/i
~/haxe/i
haxe
i
https://haxe.org/manual/std-regex.html