var vowels = "(A(hh)?)|(E)|(H)|(I)|(O)|(U)|(a((a)|(e)|(i)|(u))?)|(e(e)?)|(i)|(o((a)|(o))?)|(u)"
var consonants = "(L)|(N)|(R)|(b(h)?)|(c(h)?)|(d(h)?)|(f)|(g)|(h)|(j)|(k(h)?)|(l)|(m)|(n((G)|(N)|(Y))?)|(p)|(r)|(s(h)?)|(t(h)?)|(v)|(w)|(y)|(z(h)?)"
var letter_codes = {
"~a" : "அ",
"~aa" : "ஆ",
"~A" : "ஆ",
"~i" : "இ",
"~ee" : "ஈ",
"~I" : "ஈ",
"~u" : "உ",
"~oo" : "ஊ",
"~U" : "ஊ",
"~e" : "எ",
"~ae" : "ஏ",
"~E" : "ஏ",
"~ai" : "ஐ",
"~au" : "ஔ",
"~o" : "ஒ",
"~oa" : "ஓ",
"~O" : "ஓ",
"a" : "",
"aa" : "ா",
"A" : "ா",
"ae" : "ே",
"E" : "ே",
"ai" : "ை",
"au" : "ௌ",
"e" : "ெ",
"ee" : "ீ",
"I" : "ீ",
"i" : "ி",
"o" : "ொ",
"oo" : "ூ",
"U" : "ூ",
"oa" : "ோ",
"O" : "ோ",
"u" : "ு",
"k" : "க",
"kh" : "க",
"g" : "க",
"c" : "க",
"nG" : "ங",
"ch" : "ச",
"j" : "ஜ",
"nY" : "ஞ",
"d" : "ட",
"t" : "ட",
"nN" : "ண",
"dh" : "த",
"th" : "த",
"N" : "ந",
"n" : "ன",
"b" : "ப",
"bh" : "ப",
"p" : "ப",
"m" : "ம",
"y" : "ய",
"r" : "ர",
"R" : "ற",
"l" : "ல",
"L" : "ள",
"z" : "ழ",
"zh" : "ழ",
"v" : "வ",
"w" : "வ",
"sh" : "ஷ",
"s" : "ஸ",
"h" : "ஹ",
"f" : "ஃப",
"H" : "ஃ",
"Ahh" : "ஃ",
"~H" : "ஃ",
"~Ahh" : "ஃ",
"*" : "்"
}