Added unicode support to dot metacharacter - it now matches _any_ unicode character (almost)

misc.go

@@ -8,8 +8,10 @@ import (
 var whitespaceChars = []rune{' ', '\t', '\n'}
 var digitChars = []rune{'0', '1', '2', '3', '4', '5', '6', '7', '8', '9'}
 var wordChars = []rune("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_")
+var notDotChars = []rune{'\n'}
 var LBRACKET rune = 0xF0000
 var RBRACKET rune = 0xF0001
+var ANY_CHAR rune = 0xF0002 // Represents any character - used for 'dot' metacharacter
 
 func dotChars() []rune { // Returns all possible characters represented by the dot metacharacter - this is too tedious to define as a variable, which is why it is a function
 	start := 0x0020