This input method allows to type Thai characters. I do not know if it
corresponds to any commonly used layout, but I had the data ant it may be
useful. Here is the correspondance table between input keys and Thai
characters.

[!]	+	U+002B	PLUS SIGN
["]	.	U+002E	FULL STOP
[#]	๒	U+0E52	THAI DIGIT TWO
[$]	๓	U+0E53	THAI DIGIT THREE
[%]	๔	U+0E54	THAI DIGIT FOUR
[&]	฿	U+0E3F	THAI CURRENCY SYMBOL BAHT (Sc)
[']	ง	U+0E07	THAI CHARACTER NGO NGU
[(]	๖	U+0E56	THAI DIGIT SIX
[)]	๗	U+0E57	THAI DIGIT SEVEN
[*]	๕	U+0E55	THAI DIGIT FIVE
[+]	๙	U+0E59	THAI DIGIT NINE
[,]	ม	U+0E21	THAI CHARACTER MO MA
[-]	ข	U+0E02	THAI CHARACTER KHO KHAI
[.]	ใ	U+0E43	THAI CHARACTER SARA AI MAIMUAN
[/]	ฝ	U+0E1D	THAI CHARACTER FO FA
[0]	จ	U+0E08	THAI CHARACTER CHO CHAN
[1]	ๅ	U+0E45	THAI CHARACTER LAKKHANGYAO
[2]	/	U+002F	SOLIDUS
[3]	-	U+002D	HYPHEN-MINUS
[4]	ภ	U+0E20	THAI CHARACTER PHO SAMPHAO
[5]	ถ	U+0E16	THAI CHARACTER THO THUNG
[6]	 ุ	U+0E38	THAI CHARACTER SARA U (combinant)
[7]	 ึ	U+0E36	THAI CHARACTER SARA UE (combinant)
[8]	ค	U+0E04	THAI CHARACTER KHO KHWAI
[9]	ต	U+0E15	THAI CHARACTER TO TAO
[:]	ซ	U+0E0B	THAI CHARACTER SO SO
[;]	ว	U+0E27	THAI CHARACTER WO WAEN
[<]	ฒ	U+0E12	THAI CHARACTER THO PHUTHAO
[=]	ช	U+0E0A	THAI CHARACTER CHO CHANG
[>]	ฬ	U+0E2C	THAI CHARACTER LO CHULA
[?]	ฦ	U+0E26	THAI CHARACTER LU
[@]	๑	U+0E51	THAI DIGIT ONE
[A]	ฤ	U+0E24	THAI CHARACTER RU
[B]	 ฺ	U+0E3A	THAI CHARACTER PHINTHU (combinant)
[C]	ฉ	U+0E09	THAI CHARACTER CHO CHING
[D]	ฏ	U+0E0F	THAI CHARACTER TO PATAK
[E]	ฎ	U+0E0E	THAI CHARACTER DO CHADA
[F]	โ	U+0E42	THAI CHARACTER SARA O
[G]	ฌ	U+0E0C	THAI CHARACTER CHO CHOE
[H]	 ็	U+0E47	THAI CHARACTER MAITAIKHU (combinant)
[I]	ณ	U+0E13	THAI CHARACTER NO NEN
[J]	 ๋	U+0E4B	THAI CHARACTER MAI CHATTAWA (combinant)
[K]	ษ	U+0E29	THAI CHARACTER SO RUSI
[L]	ศ	U+0E28	THAI CHARACTER SO SALA
[M]	?	U+003F	QUESTION MARK
[N]	 ์	U+0E4C	THAI CHARACTER THANTHAKHAT (combinant)
[O]	ฯ	U+0E2F	THAI CHARACTER PAIYANNOI
[P]	ญ	U+0E0D	THAI CHARACTER YO YING
[Q]	๐	U+0E50	THAI DIGIT ZERO
[R]	ฑ	U+0E11	THAI CHARACTER THO NANGMONTHO
[S]	ฆ	U+0E06	THAI CHARACTER KHO RAKHANG
[T]	ธ	U+0E18	THAI CHARACTER THO THONG
[U]	 ๊	U+0E4A	THAI CHARACTER MAI TRI (combinant)
[V]	ฮ	U+0E2E	THAI CHARACTER HO NOKHUK
[W]	"	U+0022	QUOTATION MARK
[X]	)	U+0029	RIGHT PARENTHESIS
[Y]	 ํ	U+0E4D	THAI CHARACTER NIKHAHIT (combinant)
[Z]	(	U+0028	LEFT PARENTHESIS
[[]	บ	U+0E1A	THAI CHARACTER BO BAIMAI
[\]	_	U+005F	LOW LINE
[]]	ล	U+0E25	THAI CHARACTER LO LING
[^]	 ู	U+0E39	THAI CHARACTER SARA UU (combinant)
[_]	๘	U+0E58	THAI DIGIT EIGHT
[`]	ฃ	U+0E03	THAI CHARACTER KHO KHUAT
[a]	ฟ	U+0E1F	THAI CHARACTER FO FAN
[b]	 ิ	U+0E34	THAI CHARACTER SARA I (combinant)
[c]	แ	U+0E41	THAI CHARACTER SARA AE
[d]	ก	U+0E01	THAI CHARACTER KO KAI
[e]	ำ	U+0E33	THAI CHARACTER SARA AM
[f]	ด	U+0E14	THAI CHARACTER DO DEK
[g]	เ	U+0E40	THAI CHARACTER SARA E
[h]	 ้	U+0E49	THAI CHARACTER MAI THO (combinant)
[i]	ร	U+0E23	THAI CHARACTER RO RUA
[j]	 ่	U+0E48	THAI CHARACTER MAI EK (combinant)
[k]	า	U+0E32	THAI CHARACTER SARA AA
[l]	ส	U+0E2A	THAI CHARACTER SO SUA
[m]	ท	U+0E17	THAI CHARACTER THO THAHAN
[n]	 ื	U+0E37	THAI CHARACTER SARA UEE (combinant)
[o]	น	U+0E19	THAI CHARACTER NO NU
[p]	ย	U+0E22	THAI CHARACTER YO YAK
[q]	ๆ	U+0E46	THAI CHARACTER MAIYAMOK
[r]	พ	U+0E1E	THAI CHARACTER PHO PHAN
[s]	ห	U+0E2B	THAI CHARACTER HO HIP
[t]	ะ	U+0E30	THAI CHARACTER SARA A
[u]	 ี	U+0E35	THAI CHARACTER SARA II (combinant)
[v]	อ	U+0E2D	THAI CHARACTER O ANG
[w]	ไ	U+0E44	THAI CHARACTER SARA AI MAIMALAI
[x]	ป	U+0E1B	THAI CHARACTER PO PLA
[y]	 ั	U+0E31	THAI CHARACTER MAI HAN-AKAT (combinant)
[z]	ผ	U+0E1C	THAI CHARACTER PHO PHUNG
[{]	ฐ	U+0E10	THAI CHARACTER THO THAN
[|]	%	U+0025	PERCENT SIGN
[}]	,	U+002C	COMMA
[~]	ฅ	U+0E05	THAI CHARACTER KHO KHON