[PATCH] locale/C-translit.h.in: Greek -> ASCII transliteration table [BZ #12031]

["Diego (Egor) Kobylkin" <egor at kobylkin dot com>]

Dear locale maintainers,

fix the glibc bug 12031 "iconv -t ascii//translit with Greek characters" [1]
add Greek transliteration rows to locale/C-translit.h.in.

This work is done on the heels of the successfully committed patch for the 

virtually the same bug [BZ #2872] but concerning Cyrillic characters. [2] 


AFAIK there are many versions of transcription tables for Greek to ASCII 

transcription. Given that current iconv logic can only translit one to many 

but not many to many symbols we take the "Standard" part of 

the Romanization_of_Greek#Modern_Greek table [3]

and only keep the one letter Greek graphems. That "standard" seems to be close to 

the ELOT 743 indeed but not the same. 


So we omit things like M and Μπ being transliterated as M and B accordingly. 

Rather Μπ will be treated like two separate graphems and transliterated as Mp. 


Here is the list of some standards I have collected so far. There doesn't seem 

a way to harmonize them all into one. But if anyone want to propose a solution - 

please do.

* ΕΛΟΤ 743 https://www.teicrete.gr/users/kutrulis/Ergalia/ELOT743.htm Passports.
* ISO 843 https://en.wikipedia.org/wiki/ISO_843
* ALA-LC https://www.loc.gov/catdir/cpso/romanization/greek.pdf Book titles.
* BGN/PCGN http://libraries.ucsd.edu/bib/fed/USBGN_romanization.pdf 

* http://geonames.nga.mil/gns/html/Romanization/Romanization_Greek.pdf Geographical names.

Furthermore to cover the whole U0370-U03FF Greek/Coptic Unicode range I have 

asked around and made a best effort transliteration for the rest of characters 

not covered in above standards. 


Should you have better sources for the actual translit entries please make sure to 

send your feedback!

The patch is attached. 


Best regards,
Egor Kobylkin

https://sourceware.org/bugzilla/show_bug.cgi?id=12031 [1]
https://sourceware.org/ml/libc-alpha/2019-07/msg00477.html [2]
https://en.wikipedia.org/wiki/Romanization_of_Greek#Modern_Greek [3]

From d39f142b715d224cbb7e29c21d82ea1101fd2844 Mon Sep 17 00:00:00 2001
From: Egor Kobylkin <egor@kobylkin.com>
Date: Wed, 4 Sep 2019 08:24:04 +0200
Subject: [PATCH] Locales: Greek -> ASCII transliteration table [BZ #12031]

	[BZ #12031]
	* locale/C-translit.h.in: Add Greeklish transliteration.
---
 locale/C-translit.h.in | 135 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 135 insertions(+)

diff --git a/locale/C-translit.h.in b/locale/C-translit.h.in
index 758171c394..3c229c1813 100644
--- a/locale/C-translit.h.in
+++ b/locale/C-translit.h.in
@@ -56,6 +56,141 @@
 "\x02cd"	"_"	# <U02CD> MODIFIER LETTER LOW MACRON
 "\x02d0"	":"	# <U02D0> MODIFIER LETTER TRIANGULAR COLON
 "\x02dc"	"~"	# <U02DC> SMALL TILDE
+"\x0370"	"H"	# <U0370> GREEK CAPITAL LETTER HETA
+"\x0371"	"h"	# <U0371> GREEK SMALL LETTER HETA
+"\x0372"	"SS"	# <U0372> GREEK CAPITAL LETTER ARCHAIC SAMPI
+"\x0373"	"ss"	# <U0373> GREEK SMALL LETTER ARCHAIC SAMPI
+"\x0374"	"#"	# <U0374> GREEK NUMERAL SIGN
+"\x0375"	"#`"	# <U0375> GREEK LOWER NUMERAL SIGN
+"\x0376"	"W"	# <U0376> GREEK CAPITAL LETTER PAMPHYLIAN DIGAMMA
+"\x0377"	"w"	# <U0377> GREEK SMALL LETTER PAMPHYLIAN DIGAMMA
+"\x037a"	"i"	# <U037A> GREEK YPOGEGRAMMENI
+"\x037b"	"s"	# <U037B> GREEK SMALL REVERSED LUNATE SIGMA SYMBOL
+"\x037c"	"s"	# <U037C> GREEK SMALL DOTTED LUNATE SIGMA SYMBOL
+"\x037d"	"s"	# <U037D> GREEK SMALL REVERSED DOTTED LUNATE SIGMA SYMBOL
+"\x037e"	"?"	# <U037E> GREEK QUESTION MARK
+"\x037f"	"J"	# <U037F> GREEK CAPITAL LETTER YOT
+"\x0384"	"`"	# <U0384> GREEK TONOS
+"\x0385"	"`"	# <U0385> GREEK DIALYTIKA TONOS
+"\x0386"	"A"	# <U0386> GREEK CAPITAL LETTER ALPHA WITH TONOS
+"\x0387"	";"	# <U0387> GREEK ANO TELEIA
+"\x0388"	"E"	# <U0388> GREEK CAPITAL LETTER EPSILON WITH TONOS
+"\x0389"	"E"	# <U0389> GREEK CAPITAL LETTER ETA WITH TONOS
+"\x038a"	"I"	# <U038A> GREEK CAPITAL LETTER IOTA WITH TONOS
+"\x038c"	"O"	# <U038C> GREEK CAPITAL LETTER OMICRON WITH TONOS
+"\x038e"	"Y"	# <U038E> GREEK CAPITAL LETTER UPSILON WITH TONOS
+"\x038f"	"O"	# <U038F> GREEK CAPITAL LETTER OMEGA WITH TONOS
+"\x0390"	"I"	# <U0390> GREEK SMALL LETTER IOTA WITH DIALYTIKA AND TONOS
+"\x0391"	"A"	# <U0391> GREEK CAPITAL LETTER ALPHA
+"\x0392"	"V"	# <U0392> GREEK CAPITAL LETTER BETA
+"\x0393"	"G"	# <U0393> GREEK CAPITAL LETTER GAMMA
+"\x0394"	"D"	# <U0394> GREEK CAPITAL LETTER DELTA
+"\x0395"	"E"	# <U0395> GREEK CAPITAL LETTER EPSILON
+"\x0396"	"Z"	# <U0396> GREEK CAPITAL LETTER ZETA
+"\x0397"	"I"	# <U0397> GREEK CAPITAL LETTER ETA
+"\x0398"	"TH"	# <U0398> GREEK CAPITAL LETTER THETA
+"\x0399"	"I"	# <U0399> GREEK CAPITAL LETTER IOTA
+"\x039a"	"K"	# <U039A> GREEK CAPITAL LETTER KAPPA
+"\x039b"	"L"	# <U039B> GREEK CAPITAL LETTER LAMDA
+"\x039c"	"M"	# <U039C> GREEK CAPITAL LETTER MU
+"\x039d"	"N"	# <U039D> GREEK CAPITAL LETTER NU
+"\x039e"	"X"	# <U039E> GREEK CAPITAL LETTER XI
+"\x039f"	"O"	# <U039F> GREEK CAPITAL LETTER OMICRON
+"\x03a0"	"P"	# <U03A0> GREEK CAPITAL LETTER PI
+"\x03a1"	"R"	# <U03A1> GREEK CAPITAL LETTER RHO
+"\x03a3"	"S"	# <U03A3> GREEK CAPITAL LETTER SIGMA
+"\x03a4"	"T"	# <U03A4> GREEK CAPITAL LETTER TAU
+"\x03a5"	"Y"	# <U03A5> GREEK CAPITAL LETTER UPSILON
+"\x03a6"	"F"	# <U03A6> GREEK CAPITAL LETTER PHI
+"\x03a7"	"CH"	# <U03A7> GREEK CAPITAL LETTER CHI
+"\x03a8"	"PS"	# <U03A8> GREEK CAPITAL LETTER PSI
+"\x03a9"	"O"	# <U03A9> GREEK CAPITAL LETTER OMEGA
+"\x03aa"	"I"	# <U03AA> GREEK CAPITAL LETTER IOTA WITH DIALYTIKA
+"\x03ab"	"Y"	# <U03AB> GREEK CAPITAL LETTER UPSILON WITH DIALYTIKA
+"\x03ac"	"a"	# <U03AC> GREEK SMALL LETTER ALPHA WITH TONOS
+"\x03ad"	"e"	# <U03AD> GREEK SMALL LETTER EPSILON WITH TONOS
+"\x03ae"	"e"	# <U03AE> GREEK SMALL LETTER ETA WITH TONOS
+"\x03af"	"i"	# <U03AF> GREEK SMALL LETTER IOTA WITH TONOS
+"\x03b0"	"y"	# <U03B0> GREEK SMALL LETTER UPSILON WITH DIALYTIKA AND TONOS
+"\x03b1"	"a"	# <U03B1> GREEK SMALL LETTER ALPHA
+"\x03b2"	"v"	# <U03B2> GREEK SMALL LETTER BETA
+"\x03b3"	"g"	# <U03B3> GREEK SMALL LETTER GAMMA
+"\x03b4"	"d"	# <U03B4> GREEK SMALL LETTER DELTA
+"\x03b5"	"e"	# <U03B5> GREEK SMALL LETTER EPSILON
+"\x03b6"	"z"	# <U03B6> GREEK SMALL LETTER ZETA
+"\x03b7"	"i"	# <U03B7> GREEK SMALL LETTER ETA
+"\x03b8"	"th"	# <U03B8> GREEK SMALL LETTER THETA
+"\x03b9"	"i"	# <U03B9> GREEK SMALL LETTER IOTA
+"\x03ba"	"k"	# <U03BA> GREEK SMALL LETTER KAPPA
+"\x03bb"	"l"	# <U03BB> GREEK SMALL LETTER LAMDA
+"\x03bc"	"m"	# <U03BC> GREEK SMALL LETTER MU
+"\x03bd"	"n"	# <U03BD> GREEK SMALL LETTER NU
+"\x03be"	"x"	# <U03BE> GREEK SMALL LETTER XI
+"\x03bf"	"o"	# <U03BF> GREEK SMALL LETTER OMICRON
+"\x03c0"	"p"	# <U03C0> GREEK SMALL LETTER PI
+"\x03c1"	"r"	# <U03C1> GREEK SMALL LETTER RHO
+"\x03c2"	"s"	# <U03C2> GREEK SMALL LETTER FINAL SIGMA
+"\x03c3"	"s"	# <U03C3> GREEK SMALL LETTER SIGMA
+"\x03c4"	"t"	# <U03C4> GREEK SMALL LETTER TAU
+"\x03c5"	"y"	# <U03C5> GREEK SMALL LETTER UPSILON
+"\x03c6"	"f"	# <U03C6> GREEK SMALL LETTER PHI
+"\x03c7"	"ch"	# <U03C7> GREEK SMALL LETTER CHI
+"\x03c8"	"ps"	# <U03C8> GREEK SMALL LETTER PSI
+"\x03c9"	"o"	# <U03C9> GREEK SMALL LETTER OMEGA
+"\x03ca"	"i"	# <U03CA> GREEK SMALL LETTER IOTA WITH DIALYTIKA
+"\x03cb"	"y"	# <U03CB> GREEK SMALL LETTER UPSILON WITH DIALYTIKA
+"\x03cc"	"o"	# <U03CC> GREEK SMALL LETTER OMICRON WITH TONOS
+"\x03cd"	"y"	# <U03CD> GREEK SMALL LETTER UPSILON WITH TONOS
+"\x03ce"	"o"	# <U03CE> GREEK SMALL LETTER OMEGA WITH TONOS
+"\x03cf"	"&"	# <U03CF> GREEK CAPITAL KAI SYMBOL
+"\x03d0"	"b"	# <U03D0> GREEK BETA SYMBOL
+"\x03d1"	"th"	# <U03D1> GREEK THETA SYMBOL
+"\x03d2"	"Y`"	# <U03D2> GREEK UPSILON WITH HOOK SYMBOL
+"\x03d3"	"Y`"	# <U03D3> GREEK UPSILON WITH ACUTE AND HOOK SYMBOL
+"\x03d4"	"Y`"	# <U03D4> GREEK UPSILON WITH DIAERESIS AND HOOK SYMBOL
+"\x03d5"	"f"	# <U03D5> GREEK PHI SYMBOL
+"\x03d6"	"p"	# <U03D6> GREEK PI SYMBOL
+"\x03d7"	"&"	# <U03D7> GREEK KAI SYMBOL
+"\x03d8"	"Q"	# <U03D8> GREEK LETTER ARCHAIC KOPPA
+"\x03d9"	"q"	# <U03D9> GREEK SMALL LETTER ARCHAIC KOPPA
+"\x03da"	"6"	# <U03DA> GREEK LETTER STIGMA
+"\x03db"	"6"	# <U03DB> GREEK SMALL LETTER STIGMA
+"\x03dc"	"W"	# <U03DC> GREEK LETTER DIGAMMA
+"\x03dd"	"w"	# <U03DD> GREEK SMALL LETTER DIGAMMA
+"\x03de"	"90"	# <U03DE> GREEK LETTER KOPPA
+"\x03df"	"90"	# <U03DF> GREEK SMALL LETTER KOPPA
+"\x03e0"	"900"	# <U03E0> GREEK LETTER SAMPI
+"\x03e1"	"900"	# <U03E1> GREEK SMALL LETTER SAMPI
+"\x03e2"	"SH"	# <U03E2> COPTIC CAPITAL LETTER SHEI
+"\x03e3"	"sh"	# <U03E3> COPTIC SMALL LETTER SHEI
+"\x03e4"	"F"	# <U03E4> COPTIC CAPITAL LETTER FEI
+"\x03e5"	"f"	# <U03E5> COPTIC SMALL LETTER FEI
+"\x03e6"	"KH"	# <U03E6> COPTIC CAPITAL LETTER KHEI
+"\x03e7"	"kh"	# <U03E7> COPTIC SMALL LETTER KHEI
+"\x03e8"	"H"	# <U03E8> COPTIC CAPITAL LETTER HORI
+"\x03e9"	"h"	# <U03E9> COPTIC SMALL LETTER HORI
+"\x03ea"	"DJ"	# <U03EA> COPTIC CAPITAL LETTER GANGIA
+"\x03eb"	"dj"	# <U03EB> COPTIC SMALL LETTER GANGIA
+"\x03ec"	"GJ"	# <U03EC> COPTIC CAPITAL LETTER SHIMA
+"\x03ed"	"gj"	# <U03ED> COPTIC SMALL LETTER SHIMA
+"\x03ee"	"TI"	# <U03EE> COPTIC CAPITAL LETTER DEI
+"\x03ef"	"ti"	# <U03EF> COPTIC SMALL LETTER DEI
+"\x03f0"	"k"	# <U03F0> GREEK KAPPA SYMBOL
+"\x03f1"	"r"	# <U03F1> GREEK RHO SYMBOL
+"\x03f2"	"s"	# <U03F2> GREEK LUNATE SIGMA SYMBOL
+"\x03f3"	"j"	# <U03F3> GREEK LETTER YOT
+"\x03f4"	"TH"	# <U03F4> GREEK CAPITAL THETA SYMBOL
+"\x03f5"	"e"	# <U03F5> GREEK LUNATE EPSILON SYMBOL
+"\x03f6"	"e"	# <U03F6> GREEK REVERSED LUNATE EPSILON SYMBOL
+"\x03f7"	"SH"	# <U03F7> GREEK CAPITAL LETTER SHO
+"\x03f8"	"sh"	# <U03F8> GREEK SMALL LETTER SHO
+"\x03f9"	"S"	# <U03F9> GREEK CAPITAL LUNATE SIGMA SYMBOL
+"\x03fa"	"S"	# <U03FA> GREEK CAPITAL LETTER SAN
+"\x03fb"	"s"	# <U03FB> GREEK SMALL LETTER SAN
+"\x03fc"	"r"	# <U03FC> GREEK RHO WITH STROKE SYMBOL
+"\x03fd"	"S"	# <U03FD> GREEK CAPITAL REVERSED LUNATE SIGMA SYMBOL
+"\x03fe"	"S"	# <U03FE> GREEK CAPITAL DOTTED LUNATE SIGMA SYMBOL
+"\x03ff"	"S"	# <U03FF> GREEK CAPITAL REVERSED DOTTED LUNATE SIGMA SYMBOL
 "\x0401"	"YO"	# <U0401> CYRILLIC CAPITAL LETTER IO
 "\x0402"	"DJ"	# <U0402> CYRILLIC CAPITAL LETTER DJE
 "\x0403"	"G`"	# <U0403> CYRILLIC CAPITAL LETTER GJE
-- 
2.17.1

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