hb-report.txt

"ber" should be mapped to BBR not BER.

There's a duplicate entry for "hz" not in sort order.

The entries for "sck", "vls", "wo" are not in sort order.

The tag for "tmh" is in lower case instead of upper case.

Some tags are missing a final zero. Recent drafts of the OpenType spec
-- I found a WD for the next edition of the ISO standard
http://mpeg.chiariglione.org/standards/mpeg-4/open-font-format/text-wd-isoiec-14496-22-3rd-edition
-- add some 4-character tags, whose last character is a zero.  There
are four cases where these have been added, but the final zero was
incorrectly omitted: kab -> KAB0, ksh -> KSH0, kg -> KON0, pap ->
PAP0, sn -> SNA0.

The following entries appear in the spec, but are missing from HarfBuzz, and they seem
uncontroversial to me.

wlc CMR Mwali Comorian
wni CMR Ndzwani Comorian
zdj CMR Ngazidja Comorian
caf CRR Southern Carrier
co COS Corsican

The last is probably missing because it was omitted from the ISO WD; I
suspect this is a bug in the ISO WD.

Less obvious but also following the spec, remove the following

eot BTI Beti (Côte d'Ivoire)
kvd KUI Kui (Indonesia)
mdc MLE Male (Papua New Guinea)
mlq MNK Western Maninkakan
nco SIB Sibe
ril RIA Riang (India)
xom KMO Komo (Sudan)
yso NIS Nisi (China)

and also add the following:

sjo SIB Xibe
pro PRO Old Provencal
rmz ARK Marma

Other suggested removals (not in the spec):

xst SIG (not an IETF tag, was Silt'e in ISO 639-2 before it was retired)

and additions (not in the spec)

njz NIS Nyishi
tgj NIS Tagin
beb BTI Bebele
bum BTI Bulu (Cameroon)
bxp BTI Bebil
eto BTI Eton (Cameroon)
ewo BTI Ewondo
fan BTI Fang (Equatorial Guinea)
mct BTI Mengisa

/*{"ahg/awn/xan?",	HB_TAG('A','G','W',' ')},*/	/* Agaw */

"ahg", "awn"

/*{"gsw?/gsw-FR?",	HB_TAG('A','L','S',' ')},*/	/* Alsatian */

"gsw"

/*{"krc",	HB_TAG('B','A','L',' ')},*/	/* Balkar */

Leave unmapped

/*{"??",	HB_TAG('B','C','R',' ')},*/	/* Bible Cree */

Leave unmapped

/*{"zh?",	HB_TAG('C','H','N',' ')},*/	/* Chinese (seen in Microsoft fonts) */

???

/*{"acf/gcf?",	HB_TAG('F','A','N',' ')},*/	/* French Antillean */

"acf", "gcf"

/*{"enf?/yrk?",	HB_TAG('F','N','E',' ')},*/	/* Forest Nenets */

Leave unmapped

/*{"fuf?",	HB_TAG('F','T','A',' ')},*/	/* Futa */

"fuf"

/*{"ar-Syrc?",	HB_TAG('G','A','R',' ')},*/	/* Garshuni */

"ar-Syrc"

/*{"cfm/rnl?",	HB_TAG('H','A','L',' ')},*/	/* Halam */

"cfm"

/*{"fonipa",	HB_TAG('I','P','P','H')},*/	/* Phonetic transcription—IPA conventions */

"und-fonipa", or better map anything with a variant of "fonipa"

/*{"ga-Latg?/Latg?",	HB_TAG('I','R','T',' ')},*/	/* Irish Traditional */

"ga-Latg"

/*{"krc",	HB_TAG('K','A','R',' ')},*/	/* Karachay */

"krc"

/*{"alw?/ktb?",	HB_TAG('K','E','B',' ')},*/	/* Kebena */

"alw"

/*{"Geok",	HB_TAG('K','G','E',' ')},*/	/* Khutsuri Georgian */

"ka-Geok" (Georgian written with the Khutsuri script)

/*{"kca",	HB_TAG('K','H','K',' ')},*/	/* Khanty-Kazim */

"kca"

/*{"kca",	HB_TAG('K','H','S',' ')},*/	/* Khanty-Shurishkar */

Leave unmapped

/*{"kca",	HB_TAG('K','H','V',' ')},*/	/* Khanty-Vakhi */

Leave unmapped

/*{"guz?/kqs?/kss?",	HB_TAG('K','I','S',' ')},*/	/* Kisii */

"guz"

/*{"kfa/kfi?/kpb?/xua?/xuj?",	HB_TAG('K','O','D',' ')},*/	/* Kodagu */

"kfa"

/*{"okm?/oko?",	HB_TAG('K','O','H',' ')},*/	/* Korean Old Hangul */

"okm"

/*{"kon?/ktu?/...",	HB_TAG('K','O','N',' ')},*/	/* Kikongo */

"ktu"

/*{"kfx?",	HB_TAG('K','U','L',' ')},*/	/* Kulvi */

"kfx"

/*{"??",	HB_TAG('L','A','H',' ')},*/	/* Lahuli */

"lbf", "lae", "bfu"

/*{"??",	HB_TAG('L','C','R',' ')},*/	/* L-Cree */

Leave unmapped

/*{"??",	HB_TAG('M','A','L',' ')},*/	/* Malayalam Traditional */

Leave unmapped

/*{"mnk?/mlq?/...",	HB_TAG('M','L','N',' ')},*/	/* Malinke */

"mlq"

/*{"??",	HB_TAG('N','C','R',' ')},*/	/* N-Cree */

"csw"

/*{"??",	HB_TAG('N','H','C',' ')},*/	/* Norway House Cree */

Leave unmapped

/*{"jpa?/sam?",	HB_TAG('P','A','A',' ')},*/	/* Palestinian Aramaic */

"jpa", "sam"

/*{"polyton",	HB_TAG('P','G','R',' ')},*/	/* Polytonic Greek */

"el-polyton"

/*{"??",	HB_TAG('Q','I','N',' ')},*/	/* Asho Chin */

"tbq"

(The spec says Chin not Asho Chin.)

/*{"??",	HB_TAG('R','C','R',' ')},*/	/* R-Cree */

"atj"

/*{"chp?",	HB_TAG('S','A','Y',' ')},*/	/* Sayisi */

Leave unmapped

/*{"xan?",	HB_TAG('S','E','K',' ')},*/	/* Sekota */

"xan"

/*{"ngo?",	HB_TAG('S','X','T',' ')},*/	/* Sutu */

Leave unmapped

/*{"??",	HB_TAG('T','C','R',' ')},*/	/* TH-Cree */

Leave unmapped

/*{"tnz?/tog?/toi?",	HB_TAG('T','N','G',' ')},*/	/* Tonga */

"toi"

/*{"enh?/yrk?",	HB_TAG('T','N','E',' ')},*/	/* Tundra Nenets */

"yrk"

/*{"??",	HB_TAG('W','C','R',' ')},*/	/* West-Cree */

Leave unmapped

/*{"cre?",	HB_TAG('Y','C','R',' ')},*/	/* Y-Cree */

"crk"

/*{"??",	HB_TAG('Y','I','C',' ')},*/	/* Yi Classic */

Leave unmapped

/*{"ii?/Yiii?",	HB_TAG('Y','I','M',' ')},*/	/* Yi Modern */

"ii"

It would also be desirable to map otherwise unmapped languages in the
Yi script (ie with with a script code of Yiii) to YIM.

/*{"??",	HB_TAG('Z','H','P',' ')},*/	/* Chinese Phonetic */

"zh-Latn"