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+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+**********************************************************************
+* Copyright (C) 1997-2016, International Business Machines
+* Corporation and others. All Rights Reserved.
+**********************************************************************
+*
+* File ULOC.CPP
+*
+* Modification History:
+*
+* Date Name Description
+* 04/01/97 aliu Creation.
+* 08/21/98 stephen JDK 1.2 sync
+* 12/08/98 rtg New Locale implementation and C API
+* 03/15/99 damiba overhaul.
+* 04/06/99 stephen changed setDefault() to realloc and copy
+* 06/14/99 stephen Changed calls to ures_open for new params
+* 07/21/99 stephen Modified setDefault() to propagate to C++
+* 05/14/04 alan 7 years later: refactored, cleaned up, fixed bugs,
+* brought canonicalization code into line with spec
+*****************************************************************************/
+
+/*
+ POSIX's locale format, from putil.c: [no spaces]
+
+ ll [ _CC ] [ . MM ] [ @ VV]
+
+ l = lang, C = ctry, M = charmap, V = variant
+*/
+
+#include "unicode/bytestream.h"
+#include "unicode/errorcode.h"
+#include "unicode/stringpiece.h"
+#include "unicode/utypes.h"
+#include "unicode/ustring.h"
+#include "unicode/uloc.h"
+
+#include "bytesinkutil.h"
+#include "putilimp.h"
+#include "ustr_imp.h"
+#include "ulocimp.h"
+#include "umutex.h"
+#include "cstring.h"
+#include "cmemory.h"
+#include "locmap.h"
+#include "uarrsort.h"
+#include "uenumimp.h"
+#include "uassert.h"
+#include "charstr.h"
+
+U_NAMESPACE_USE
+
+/* ### Declarations **************************************************/
+
+/* Locale stuff from locid.cpp */
+U_CFUNC void locale_set_default(const char *id);
+U_CFUNC const char *locale_get_default();
+
+/* ### Data tables **************************************************/
+
+/**
+ * Table of language codes, both 2- and 3-letter, with preference
+ * given to 2-letter codes where possible. Includes 3-letter codes
+ * that lack a 2-letter equivalent.
+ *
+ * This list must be in sorted order. This list is returned directly
+ * to the user by some API.
+ *
+ * This list must be kept in sync with LANGUAGES_3, with corresponding
+ * entries matched.
+ *
+ * This table should be terminated with a nullptr entry, followed by a
+ * second list, and another nullptr entry. The first list is visible to
+ * user code when this array is returned by API. The second list
+ * contains codes we support, but do not expose through user API.
+ *
+ * Notes
+ *
+ * Tables updated per http://lcweb.loc.gov/standards/iso639-2/ to
+ * include the revisions up to 2001/7/27 *CWB*
+ *
+ * The 3 character codes are the terminology codes like RFC 3066. This
+ * is compatible with prior ICU codes
+ *
+ * "in" "iw" "ji" "jw" & "sh" have been withdrawn but are still in the
+ * table but now at the end of the table because 3 character codes are
+ * duplicates. This avoids bad searches going from 3 to 2 character
+ * codes.
+ *
+ * The range qaa-qtz is reserved for local use
+ */
+/* Generated using org.unicode.cldr.icu.GenerateISO639LanguageTables */
+/* ISO639 table version is 20150505 */
+/* Subsequent hand addition of selected languages */
+static const char * const LANGUAGES[] = {
+ "aa", "ab", "ace", "ach", "ada", "ady", "ae", "aeb",
+ "af", "afh", "agq", "ain", "ak", "akk", "akz", "ale",
+ "aln", "alt", "am", "an", "ang", "anp", "ar", "arc",
+ "arn", "aro", "arp", "arq", "ars", "arw", "ary", "arz", "as",
+ "asa", "ase", "ast", "av", "avk", "awa", "ay", "az",
+ "ba", "bal", "ban", "bar", "bas", "bax", "bbc", "bbj",
+ "be", "bej", "bem", "bew", "bez", "bfd", "bfq", "bg",
+ "bgc", "bgn", "bho", "bi", "bik", "bin", "bjn", "bkm", "bla",
+ "bm", "bn", "bo", "bpy", "bqi", "br", "bra", "brh",
+ "brx", "bs", "bss", "bua", "bug", "bum", "byn", "byv",
+ "ca", "cad", "car", "cay", "cch", "ccp", "ce", "ceb", "cgg",
+ "ch", "chb", "chg", "chk", "chm", "chn", "cho", "chp",
+ "chr", "chy", "ckb", "co", "cop", "cps", "cr", "crh",
+ "cs", "csb", "cu", "cv", "cy",
+ "da", "dak", "dar", "dav", "de", "del", "den", "dgr",
+ "din", "dje", "doi", "dsb", "dtp", "dua", "dum", "dv",
+ "dyo", "dyu", "dz", "dzg",
+ "ebu", "ee", "efi", "egl", "egy", "eka", "el", "elx",
+ "en", "enm", "eo", "es", "esu", "et", "eu", "ewo",
+ "ext",
+ "fa", "fan", "fat", "ff", "fi", "fil", "fit", "fj",
+ "fo", "fon", "fr", "frc", "frm", "fro", "frp", "frr",
+ "frs", "fur", "fy",
+ "ga", "gaa", "gag", "gan", "gay", "gba", "gbz", "gd",
+ "gez", "gil", "gl", "glk", "gmh", "gn", "goh", "gom",
+ "gon", "gor", "got", "grb", "grc", "gsw", "gu", "guc",
+ "gur", "guz", "gv", "gwi",
+ "ha", "hai", "hak", "haw", "he", "hi", "hif", "hil",
+ "hit", "hmn", "ho", "hr", "hsb", "hsn", "ht", "hu",
+ "hup", "hy", "hz",
+ "ia", "iba", "ibb", "id", "ie", "ig", "ii", "ik",
+ "ilo", "inh", "io", "is", "it", "iu", "izh",
+ "ja", "jam", "jbo", "jgo", "jmc", "jpr", "jrb", "jut",
+ "jv",
+ "ka", "kaa", "kab", "kac", "kaj", "kam", "kaw", "kbd",
+ "kbl", "kcg", "kde", "kea", "ken", "kfo", "kg", "kgp",
+ "kha", "kho", "khq", "khw", "ki", "kiu", "kj", "kk",
+ "kkj", "kl", "kln", "km", "kmb", "kn", "ko", "koi",
+ "kok", "kos", "kpe", "kr", "krc", "kri", "krj", "krl",
+ "kru", "ks", "ksb", "ksf", "ksh", "ku", "kum", "kut",
+ "kv", "kw", "ky",
+ "la", "lad", "lag", "lah", "lam", "lb", "lez", "lfn",
+ "lg", "li", "lij", "liv", "lkt", "lmo", "ln", "lo",
+ "lol", "loz", "lrc", "lt", "ltg", "lu", "lua", "lui",
+ "lun", "luo", "lus", "luy", "lv", "lzh", "lzz",
+ "mad", "maf", "mag", "mai", "mak", "man", "mas", "mde",
+ "mdf", "mdh", "mdr", "men", "mer", "mfe", "mg", "mga",
+ "mgh", "mgo", "mh", "mi", "mic", "min", "mis", "mk",
+ "ml", "mn", "mnc", "mni",
+ "moh", "mos", "mr", "mrj",
+ "ms", "mt", "mua", "mul", "mus", "mwl", "mwr", "mwv",
+ "my", "mye", "myv", "mzn",
+ "na", "nan", "nap", "naq", "nb", "nd", "nds", "ne",
+ "new", "ng", "nia", "niu", "njo", "nl", "nmg", "nn",
+ "nnh", "no", "nog", "non", "nov", "nqo", "nr", "nso",
+ "nus", "nv", "nwc", "ny", "nym", "nyn", "nyo", "nzi",
+ "oc", "oj", "om", "or", "os", "osa", "ota",
+ "pa", "pag", "pal", "pam", "pap", "pau", "pcd", "pcm", "pdc",
+ "pdt", "peo", "pfl", "phn", "pi", "pl", "pms", "pnt",
+ "pon", "prg", "pro", "ps", "pt",
+ "qu", "quc", "qug",
+ "raj", "rap", "rar", "rgn", "rif", "rm", "rn", "ro",
+ "rof", "rom", "rtm", "ru", "rue", "rug", "rup",
+ "rw", "rwk",
+ "sa", "sad", "sah", "sam", "saq", "sas", "sat", "saz",
+ "sba", "sbp", "sc", "scn", "sco", "sd", "sdc", "sdh",
+ "se", "see", "seh", "sei", "sel", "ses", "sg", "sga",
+ "sgs", "shi", "shn", "shu", "si", "sid", "sk",
+ "sl", "sli", "sly", "sm", "sma", "smj", "smn", "sms",
+ "sn", "snk", "so", "sog", "sq", "sr", "srn", "srr",
+ "ss", "ssy", "st", "stq", "su", "suk", "sus", "sux",
+ "sv", "sw", "swb", "syc", "syr", "szl",
+ "ta", "tcy", "te", "tem", "teo", "ter", "tet", "tg",
+ "th", "ti", "tig", "tiv", "tk", "tkl", "tkr",
+ "tlh", "tli", "tly", "tmh", "tn", "to", "tog", "tpi",
+ "tr", "tru", "trv", "ts", "tsd", "tsi", "tt", "ttt",
+ "tum", "tvl", "tw", "twq", "ty", "tyv", "tzm",
+ "udm", "ug", "uga", "uk", "umb", "und", "ur", "uz",
+ "vai", "ve", "vec", "vep", "vi", "vls", "vmf", "vo",
+ "vot", "vro", "vun",
+ "wa", "wae", "wal", "war", "was", "wbp", "wo", "wuu",
+ "xal", "xh", "xmf", "xog",
+ "yao", "yap", "yav", "ybb", "yi", "yo", "yrl", "yue",
+ "za", "zap", "zbl", "zea", "zen", "zgh", "zh", "zu",
+ "zun", "zxx", "zza",
+nullptr,
+ "in", "iw", "ji", "jw", "mo", "sh", "swc", "tl", /* obsolete language codes */
+nullptr
+};
+
+static const char* const DEPRECATED_LANGUAGES[]={
+ "in", "iw", "ji", "jw", "mo", nullptr, nullptr
+};
+static const char* const REPLACEMENT_LANGUAGES[]={
+ "id", "he", "yi", "jv", "ro", nullptr, nullptr
+};
+
+/**
+ * Table of 3-letter language codes.
+ *
+ * This is a lookup table used to convert 3-letter language codes to
+ * their 2-letter equivalent, where possible. It must be kept in sync
+ * with LANGUAGES. For all valid i, LANGUAGES[i] must refer to the
+ * same language as LANGUAGES_3[i]. The commented-out lines are
+ * copied from LANGUAGES to make eyeballing this baby easier.
+ *
+ * Where a 3-letter language code has no 2-letter equivalent, the
+ * 3-letter code occupies both LANGUAGES[i] and LANGUAGES_3[i].
+ *
+ * This table should be terminated with a nullptr entry, followed by a
+ * second list, and another nullptr entry. The two lists correspond to
+ * the two lists in LANGUAGES.
+ */
+/* Generated using org.unicode.cldr.icu.GenerateISO639LanguageTables */
+/* ISO639 table version is 20150505 */
+/* Subsequent hand addition of selected languages */
+static const char * const LANGUAGES_3[] = {
+ "aar", "abk", "ace", "ach", "ada", "ady", "ave", "aeb",
+ "afr", "afh", "agq", "ain", "aka", "akk", "akz", "ale",
+ "aln", "alt", "amh", "arg", "ang", "anp", "ara", "arc",
+ "arn", "aro", "arp", "arq", "ars", "arw", "ary", "arz", "asm",
+ "asa", "ase", "ast", "ava", "avk", "awa", "aym", "aze",
+ "bak", "bal", "ban", "bar", "bas", "bax", "bbc", "bbj",
+ "bel", "bej", "bem", "bew", "bez", "bfd", "bfq", "bul",
+ "bgc", "bgn", "bho", "bis", "bik", "bin", "bjn", "bkm", "bla",
+ "bam", "ben", "bod", "bpy", "bqi", "bre", "bra", "brh",
+ "brx", "bos", "bss", "bua", "bug", "bum", "byn", "byv",
+ "cat", "cad", "car", "cay", "cch", "ccp", "che", "ceb", "cgg",
+ "cha", "chb", "chg", "chk", "chm", "chn", "cho", "chp",
+ "chr", "chy", "ckb", "cos", "cop", "cps", "cre", "crh",
+ "ces", "csb", "chu", "chv", "cym",
+ "dan", "dak", "dar", "dav", "deu", "del", "den", "dgr",
+ "din", "dje", "doi", "dsb", "dtp", "dua", "dum", "div",
+ "dyo", "dyu", "dzo", "dzg",
+ "ebu", "ewe", "efi", "egl", "egy", "eka", "ell", "elx",
+ "eng", "enm", "epo", "spa", "esu", "est", "eus", "ewo",
+ "ext",
+ "fas", "fan", "fat", "ful", "fin", "fil", "fit", "fij",
+ "fao", "fon", "fra", "frc", "frm", "fro", "frp", "frr",
+ "frs", "fur", "fry",
+ "gle", "gaa", "gag", "gan", "gay", "gba", "gbz", "gla",
+ "gez", "gil", "glg", "glk", "gmh", "grn", "goh", "gom",
+ "gon", "gor", "got", "grb", "grc", "gsw", "guj", "guc",
+ "gur", "guz", "glv", "gwi",
+ "hau", "hai", "hak", "haw", "heb", "hin", "hif", "hil",
+ "hit", "hmn", "hmo", "hrv", "hsb", "hsn", "hat", "hun",
+ "hup", "hye", "her",
+ "ina", "iba", "ibb", "ind", "ile", "ibo", "iii", "ipk",
+ "ilo", "inh", "ido", "isl", "ita", "iku", "izh",
+ "jpn", "jam", "jbo", "jgo", "jmc", "jpr", "jrb", "jut",
+ "jav",
+ "kat", "kaa", "kab", "kac", "kaj", "kam", "kaw", "kbd",
+ "kbl", "kcg", "kde", "kea", "ken", "kfo", "kon", "kgp",
+ "kha", "kho", "khq", "khw", "kik", "kiu", "kua", "kaz",
+ "kkj", "kal", "kln", "khm", "kmb", "kan", "kor", "koi",
+ "kok", "kos", "kpe", "kau", "krc", "kri", "krj", "krl",
+ "kru", "kas", "ksb", "ksf", "ksh", "kur", "kum", "kut",
+ "kom", "cor", "kir",
+ "lat", "lad", "lag", "lah", "lam", "ltz", "lez", "lfn",
+ "lug", "lim", "lij", "liv", "lkt", "lmo", "lin", "lao",
+ "lol", "loz", "lrc", "lit", "ltg", "lub", "lua", "lui",
+ "lun", "luo", "lus", "luy", "lav", "lzh", "lzz",
+ "mad", "maf", "mag", "mai", "mak", "man", "mas", "mde",
+ "mdf", "mdh", "mdr", "men", "mer", "mfe", "mlg", "mga",
+ "mgh", "mgo", "mah", "mri", "mic", "min", "mis", "mkd",
+ "mal", "mon", "mnc", "mni",
+ "moh", "mos", "mar", "mrj",
+ "msa", "mlt", "mua", "mul", "mus", "mwl", "mwr", "mwv",
+ "mya", "mye", "myv", "mzn",
+ "nau", "nan", "nap", "naq", "nob", "nde", "nds", "nep",
+ "new", "ndo", "nia", "niu", "njo", "nld", "nmg", "nno",
+ "nnh", "nor", "nog", "non", "nov", "nqo", "nbl", "nso",
+ "nus", "nav", "nwc", "nya", "nym", "nyn", "nyo", "nzi",
+ "oci", "oji", "orm", "ori", "oss", "osa", "ota",
+ "pan", "pag", "pal", "pam", "pap", "pau", "pcd", "pcm", "pdc",
+ "pdt", "peo", "pfl", "phn", "pli", "pol", "pms", "pnt",
+ "pon", "prg", "pro", "pus", "por",
+ "que", "quc", "qug",
+ "raj", "rap", "rar", "rgn", "rif", "roh", "run", "ron",
+ "rof", "rom", "rtm", "rus", "rue", "rug", "rup",
+ "kin", "rwk",
+ "san", "sad", "sah", "sam", "saq", "sas", "sat", "saz",
+ "sba", "sbp", "srd", "scn", "sco", "snd", "sdc", "sdh",
+ "sme", "see", "seh", "sei", "sel", "ses", "sag", "sga",
+ "sgs", "shi", "shn", "shu", "sin", "sid", "slk",
+ "slv", "sli", "sly", "smo", "sma", "smj", "smn", "sms",
+ "sna", "snk", "som", "sog", "sqi", "srp", "srn", "srr",
+ "ssw", "ssy", "sot", "stq", "sun", "suk", "sus", "sux",
+ "swe", "swa", "swb", "syc", "syr", "szl",
+ "tam", "tcy", "tel", "tem", "teo", "ter", "tet", "tgk",
+ "tha", "tir", "tig", "tiv", "tuk", "tkl", "tkr",
+ "tlh", "tli", "tly", "tmh", "tsn", "ton", "tog", "tpi",
+ "tur", "tru", "trv", "tso", "tsd", "tsi", "tat", "ttt",
+ "tum", "tvl", "twi", "twq", "tah", "tyv", "tzm",
+ "udm", "uig", "uga", "ukr", "umb", "und", "urd", "uzb",
+ "vai", "ven", "vec", "vep", "vie", "vls", "vmf", "vol",
+ "vot", "vro", "vun",
+ "wln", "wae", "wal", "war", "was", "wbp", "wol", "wuu",
+ "xal", "xho", "xmf", "xog",
+ "yao", "yap", "yav", "ybb", "yid", "yor", "yrl", "yue",
+ "zha", "zap", "zbl", "zea", "zen", "zgh", "zho", "zul",
+ "zun", "zxx", "zza",
+nullptr,
+/* "in", "iw", "ji", "jw", "mo", "sh", "swc", "tl", */
+ "ind", "heb", "yid", "jaw", "mol", "srp", "swc", "tgl",
+nullptr
+};
+
+/**
+ * Table of 2-letter country codes.
+ *
+ * This list must be in sorted order. This list is returned directly
+ * to the user by some API.
+ *
+ * This list must be kept in sync with COUNTRIES_3, with corresponding
+ * entries matched.
+ *
+ * This table should be terminated with a nullptr entry, followed by a
+ * second list, and another nullptr entry. The first list is visible to
+ * user code when this array is returned by API. The second list
+ * contains codes we support, but do not expose through user API.
+ *
+ * Notes:
+ *
+ * ZR(ZAR) is now CD(COD) and FX(FXX) is PS(PSE) as per
+ * http://www.evertype.com/standards/iso3166/iso3166-1-en.html added
+ * new codes keeping the old ones for compatibility updated to include
+ * 1999/12/03 revisions *CWB*
+ *
+ * RO(ROM) is now RO(ROU) according to
+ * http://www.iso.org/iso/en/prods-services/iso3166ma/03updates-on-iso-3166/nlv3e-rou.html
+ */
+static const char * const COUNTRIES[] = {
+ "AD", "AE", "AF", "AG", "AI", "AL", "AM",
+ "AO", "AQ", "AR", "AS", "AT", "AU", "AW", "AX", "AZ",
+ "BA", "BB", "BD", "BE", "BF", "BG", "BH", "BI",
+ "BJ", "BL", "BM", "BN", "BO", "BQ", "BR", "BS", "BT", "BV",
+ "BW", "BY", "BZ", "CA", "CC", "CD", "CF", "CG",
+ "CH", "CI", "CK", "CL", "CM", "CN", "CO", "CQ", "CR",
+ "CU", "CV", "CW", "CX", "CY", "CZ", "DE", "DG", "DJ", "DK",
+ "DM", "DO", "DZ", "EA", "EC", "EE", "EG", "EH", "ER",
+ "ES", "ET", "FI", "FJ", "FK", "FM", "FO", "FR",
+ "GA", "GB", "GD", "GE", "GF", "GG", "GH", "GI", "GL",
+ "GM", "GN", "GP", "GQ", "GR", "GS", "GT", "GU",
+ "GW", "GY", "HK", "HM", "HN", "HR", "HT", "HU",
+ "IC", "ID", "IE", "IL", "IM", "IN", "IO", "IQ", "IR", "IS",
+ "IT", "JE", "JM", "JO", "JP", "KE", "KG", "KH", "KI",
+ "KM", "KN", "KP", "KR", "KW", "KY", "KZ", "LA",
+ "LB", "LC", "LI", "LK", "LR", "LS", "LT", "LU",
+ "LV", "LY", "MA", "MC", "MD", "ME", "MF", "MG", "MH", "MK",
+ "ML", "MM", "MN", "MO", "MP", "MQ", "MR", "MS",
+ "MT", "MU", "MV", "MW", "MX", "MY", "MZ", "NA",
+ "NC", "NE", "NF", "NG", "NI", "NL", "NO", "NP",
+ "NR", "NU", "NZ", "OM", "PA", "PE", "PF", "PG",
+ "PH", "PK", "PL", "PM", "PN", "PR", "PS", "PT",
+ "PW", "PY", "QA", "RE", "RO", "RS", "RU", "RW", "SA",
+ "SB", "SC", "SD", "SE", "SG", "SH", "SI", "SJ",
+ "SK", "SL", "SM", "SN", "SO", "SR", "SS", "ST", "SV",
+ "SX", "SY", "SZ", "TC", "TD", "TF", "TG", "TH", "TJ",
+ "TK", "TL", "TM", "TN", "TO", "TR", "TT", "TV",
+ "TW", "TZ", "UA", "UG", "UM", "US", "UY", "UZ",
+ "VA", "VC", "VE", "VG", "VI", "VN", "VU", "WF",
+ "WS", "XK", "YE", "YT", "ZA", "ZM", "ZW",
+nullptr,
+ "AN", "BU", "CS", "FX", "RO", "SU", "TP", "YD", "YU", "ZR", /* obsolete country codes */
+nullptr
+};
+
+static const char* const DEPRECATED_COUNTRIES[] = {
+ "AN", "BU", "CS", "DD", "DY", "FX", "HV", "NH", "RH", "SU", "TP", "UK", "VD", "YD", "YU", "ZR", nullptr, nullptr /* deprecated country list */
+};
+static const char* const REPLACEMENT_COUNTRIES[] = {
+/* "AN", "BU", "CS", "DD", "DY", "FX", "HV", "NH", "RH", "SU", "TP", "UK", "VD", "YD", "YU", "ZR" */
+ "CW", "MM", "RS", "DE", "BJ", "FR", "BF", "VU", "ZW", "RU", "TL", "GB", "VN", "YE", "RS", "CD", nullptr, nullptr /* replacement country codes */
+};
+
+/**
+ * Table of 3-letter country codes.
+ *
+ * This is a lookup table used to convert 3-letter country codes to
+ * their 2-letter equivalent. It must be kept in sync with COUNTRIES.
+ * For all valid i, COUNTRIES[i] must refer to the same country as
+ * COUNTRIES_3[i]. The commented-out lines are copied from COUNTRIES
+ * to make eyeballing this baby easier.
+ *
+ * This table should be terminated with a nullptr entry, followed by a
+ * second list, and another nullptr entry. The two lists correspond to
+ * the two lists in COUNTRIES.
+ */
+static const char * const COUNTRIES_3[] = {
+/* "AD", "AE", "AF", "AG", "AI", "AL", "AM", */
+ "AND", "ARE", "AFG", "ATG", "AIA", "ALB", "ARM",
+/* "AO", "AQ", "AR", "AS", "AT", "AU", "AW", "AX", "AZ", */
+ "AGO", "ATA", "ARG", "ASM", "AUT", "AUS", "ABW", "ALA", "AZE",
+/* "BA", "BB", "BD", "BE", "BF", "BG", "BH", "BI", */
+ "BIH", "BRB", "BGD", "BEL", "BFA", "BGR", "BHR", "BDI",
+/* "BJ", "BL", "BM", "BN", "BO", "BQ", "BR", "BS", "BT", "BV", */
+ "BEN", "BLM", "BMU", "BRN", "BOL", "BES", "BRA", "BHS", "BTN", "BVT",
+/* "BW", "BY", "BZ", "CA", "CC", "CD", "CF", "CG", */
+ "BWA", "BLR", "BLZ", "CAN", "CCK", "COD", "CAF", "COG",
+/* "CH", "CI", "CK", "CL", "CM", "CN", "CO", "CQ", "CR", */
+ "CHE", "CIV", "COK", "CHL", "CMR", "CHN", "COL", "CRQ", "CRI",
+/* "CU", "CV", "CW", "CX", "CY", "CZ", "DE", "DG", "DJ", "DK", */
+ "CUB", "CPV", "CUW", "CXR", "CYP", "CZE", "DEU", "DGA", "DJI", "DNK",
+/* "DM", "DO", "DZ", "EA", "EC", "EE", "EG", "EH", "ER", */
+ "DMA", "DOM", "DZA", "XEA", "ECU", "EST", "EGY", "ESH", "ERI",
+/* "ES", "ET", "FI", "FJ", "FK", "FM", "FO", "FR", */
+ "ESP", "ETH", "FIN", "FJI", "FLK", "FSM", "FRO", "FRA",
+/* "GA", "GB", "GD", "GE", "GF", "GG", "GH", "GI", "GL", */
+ "GAB", "GBR", "GRD", "GEO", "GUF", "GGY", "GHA", "GIB", "GRL",
+/* "GM", "GN", "GP", "GQ", "GR", "GS", "GT", "GU", */
+ "GMB", "GIN", "GLP", "GNQ", "GRC", "SGS", "GTM", "GUM",
+/* "GW", "GY", "HK", "HM", "HN", "HR", "HT", "HU", */
+ "GNB", "GUY", "HKG", "HMD", "HND", "HRV", "HTI", "HUN",
+/* "IC", "ID", "IE", "IL", "IM", "IN", "IO", "IQ", "IR", "IS" */
+ "XIC", "IDN", "IRL", "ISR", "IMN", "IND", "IOT", "IRQ", "IRN", "ISL",
+/* "IT", "JE", "JM", "JO", "JP", "KE", "KG", "KH", "KI", */
+ "ITA", "JEY", "JAM", "JOR", "JPN", "KEN", "KGZ", "KHM", "KIR",
+/* "KM", "KN", "KP", "KR", "KW", "KY", "KZ", "LA", */
+ "COM", "KNA", "PRK", "KOR", "KWT", "CYM", "KAZ", "LAO",
+/* "LB", "LC", "LI", "LK", "LR", "LS", "LT", "LU", */
+ "LBN", "LCA", "LIE", "LKA", "LBR", "LSO", "LTU", "LUX",
+/* "LV", "LY", "MA", "MC", "MD", "ME", "MF", "MG", "MH", "MK", */
+ "LVA", "LBY", "MAR", "MCO", "MDA", "MNE", "MAF", "MDG", "MHL", "MKD",
+/* "ML", "MM", "MN", "MO", "MP", "MQ", "MR", "MS", */
+ "MLI", "MMR", "MNG", "MAC", "MNP", "MTQ", "MRT", "MSR",
+/* "MT", "MU", "MV", "MW", "MX", "MY", "MZ", "NA", */
+ "MLT", "MUS", "MDV", "MWI", "MEX", "MYS", "MOZ", "NAM",
+/* "NC", "NE", "NF", "NG", "NI", "NL", "NO", "NP", */
+ "NCL", "NER", "NFK", "NGA", "NIC", "NLD", "NOR", "NPL",
+/* "NR", "NU", "NZ", "OM", "PA", "PE", "PF", "PG", */
+ "NRU", "NIU", "NZL", "OMN", "PAN", "PER", "PYF", "PNG",
+/* "PH", "PK", "PL", "PM", "PN", "PR", "PS", "PT", */
+ "PHL", "PAK", "POL", "SPM", "PCN", "PRI", "PSE", "PRT",
+/* "PW", "PY", "QA", "RE", "RO", "RS", "RU", "RW", "SA", */
+ "PLW", "PRY", "QAT", "REU", "ROU", "SRB", "RUS", "RWA", "SAU",
+/* "SB", "SC", "SD", "SE", "SG", "SH", "SI", "SJ", */
+ "SLB", "SYC", "SDN", "SWE", "SGP", "SHN", "SVN", "SJM",
+/* "SK", "SL", "SM", "SN", "SO", "SR", "SS", "ST", "SV", */
+ "SVK", "SLE", "SMR", "SEN", "SOM", "SUR", "SSD", "STP", "SLV",
+/* "SX", "SY", "SZ", "TC", "TD", "TF", "TG", "TH", "TJ", */
+ "SXM", "SYR", "SWZ", "TCA", "TCD", "ATF", "TGO", "THA", "TJK",
+/* "TK", "TL", "TM", "TN", "TO", "TR", "TT", "TV", */
+ "TKL", "TLS", "TKM", "TUN", "TON", "TUR", "TTO", "TUV",
+/* "TW", "TZ", "UA", "UG", "UM", "US", "UY", "UZ", */
+ "TWN", "TZA", "UKR", "UGA", "UMI", "USA", "URY", "UZB",
+/* "VA", "VC", "VE", "VG", "VI", "VN", "VU", "WF", */
+ "VAT", "VCT", "VEN", "VGB", "VIR", "VNM", "VUT", "WLF",
+/* "WS", "XK", "YE", "YT", "ZA", "ZM", "ZW", */
+ "WSM", "XKK", "YEM", "MYT", "ZAF", "ZMB", "ZWE",
+nullptr,
+/* "AN", "BU", "CS", "FX", "RO", "SU", "TP", "YD", "YU", "ZR" */
+ "ANT", "BUR", "SCG", "FXX", "ROM", "SUN", "TMP", "YMD", "YUG", "ZAR",
+nullptr
+};
+
+typedef struct CanonicalizationMap {
+ const char *id; /* input ID */
+ const char *canonicalID; /* canonicalized output ID */
+} CanonicalizationMap;
+
+/**
+ * A map to canonicalize locale IDs. This handles a variety of
+ * different semantic kinds of transformations.
+ */
+static const CanonicalizationMap CANONICALIZE_MAP[] = {
+ { "art__LOJBAN", "jbo" }, /* registered name */
+ { "hy__AREVELA", "hy" }, /* Registered IANA variant */
+ { "hy__AREVMDA", "hyw" }, /* Registered IANA variant */
+ { "zh__GUOYU", "zh" }, /* registered name */
+ { "zh__HAKKA", "hak" }, /* registered name */
+ { "zh__XIANG", "hsn" }, /* registered name */
+ // subtags with 3 chars won't be treated as variants.
+ { "zh_GAN", "gan" }, /* registered name */
+ { "zh_MIN_NAN", "nan" }, /* registered name */
+ { "zh_WUU", "wuu" }, /* registered name */
+ { "zh_YUE", "yue" }, /* registered name */
+};
+
+/* ### BCP47 Conversion *******************************************/
+/* Test if the locale id has BCP47 u extension and does not have '@' */
+#define _hasBCP47Extension(id) (id && uprv_strstr(id, "@") == nullptr && getShortestSubtagLength(localeID) == 1)
+/* Converts the BCP47 id to Unicode id. Does nothing to id if conversion fails */
+static const char* _ConvertBCP47(
+ const char* id, char* buffer, int32_t length,
+ UErrorCode* err, int32_t* pLocaleIdSize) {
+ const char* finalID;
+ int32_t localeIDSize = uloc_forLanguageTag(id, buffer, length, nullptr, err);
+ if (localeIDSize <= 0 || U_FAILURE(*err) || *err == U_STRING_NOT_TERMINATED_WARNING) {
+ finalID=id;
+ if (*err == U_STRING_NOT_TERMINATED_WARNING) {
+ *err = U_BUFFER_OVERFLOW_ERROR;
+ }
+ } else {
+ finalID=buffer;
+ }
+ if (pLocaleIdSize != nullptr) {
+ *pLocaleIdSize = localeIDSize;
+ }
+ return finalID;
+}
+/* Gets the size of the shortest subtag in the given localeID. */
+static int32_t getShortestSubtagLength(const char *localeID) {
+ int32_t localeIDLength = static_cast<int32_t>(uprv_strlen(localeID));
+ int32_t length = localeIDLength;
+ int32_t tmpLength = 0;
+ int32_t i;
+ UBool reset = true;
+
+ for (i = 0; i < localeIDLength; i++) {
+ if (localeID[i] != '_' && localeID[i] != '-') {
+ if (reset) {
+ tmpLength = 0;
+ reset = false;
+ }
+ tmpLength++;
+ } else {
+ if (tmpLength != 0 && tmpLength < length) {
+ length = tmpLength;
+ }
+ reset = true;
+ }
+ }
+
+ return length;
+}
+
+/* ### Keywords **************************************************/
+#define UPRV_ISDIGIT(c) (((c) >= '0') && ((c) <= '9'))
+#define UPRV_ISALPHANUM(c) (uprv_isASCIILetter(c) || UPRV_ISDIGIT(c) )
+/* Punctuation/symbols allowed in legacy key values */
+#define UPRV_OK_VALUE_PUNCTUATION(c) ((c) == '_' || (c) == '-' || (c) == '+' || (c) == '/')
+
+#define ULOC_KEYWORD_BUFFER_LEN 25
+#define ULOC_MAX_NO_KEYWORDS 25
+
+U_CAPI const char * U_EXPORT2
+locale_getKeywordsStart(const char *localeID) {
+ const char *result = nullptr;
+ if((result = uprv_strchr(localeID, '@')) != nullptr) {
+ return result;
+ }
+#if (U_CHARSET_FAMILY == U_EBCDIC_FAMILY)
+ else {
+ /* We do this because the @ sign is variant, and the @ sign used on one
+ EBCDIC machine won't be compiled the same way on other EBCDIC based
+ machines. */
+ static const uint8_t ebcdicSigns[] = { 0x7C, 0x44, 0x66, 0x80, 0xAC, 0xAE, 0xAF, 0xB5, 0xEC, 0xEF, 0x00 };
+ const uint8_t *charToFind = ebcdicSigns;
+ while(*charToFind) {
+ if((result = uprv_strchr(localeID, *charToFind)) != nullptr) {
+ return result;
+ }
+ charToFind++;
+ }
+ }
+#endif
+ return nullptr;
+}
+
+/**
+ * @param buf buffer of size [ULOC_KEYWORD_BUFFER_LEN]
+ * @param keywordName incoming name to be canonicalized
+ * @param status return status (keyword too long)
+ * @return length of the keyword name
+ */
+static int32_t locale_canonKeywordName(char *buf, const char *keywordName, UErrorCode *status)
+{
+ int32_t keywordNameLen = 0;
+
+ for (; *keywordName != 0; keywordName++) {
+ if (!UPRV_ISALPHANUM(*keywordName)) {
+ *status = U_ILLEGAL_ARGUMENT_ERROR; /* malformed keyword name */
+ return 0;
+ }
+ if (keywordNameLen < ULOC_KEYWORD_BUFFER_LEN - 1) {
+ buf[keywordNameLen++] = uprv_tolower(*keywordName);
+ } else {
+ /* keyword name too long for internal buffer */
+ *status = U_INTERNAL_PROGRAM_ERROR;
+ return 0;
+ }
+ }
+ if (keywordNameLen == 0) {
+ *status = U_ILLEGAL_ARGUMENT_ERROR; /* empty keyword name */
+ return 0;
+ }
+ buf[keywordNameLen] = 0; /* terminate */
+
+ return keywordNameLen;
+}
+
+typedef struct {
+ char keyword[ULOC_KEYWORD_BUFFER_LEN];
+ int32_t keywordLen;
+ const char *valueStart;
+ int32_t valueLen;
+} KeywordStruct;
+
+static int32_t U_CALLCONV
+compareKeywordStructs(const void * /*context*/, const void *left, const void *right) {
+ const char* leftString = ((const KeywordStruct *)left)->keyword;
+ const char* rightString = ((const KeywordStruct *)right)->keyword;
+ return uprv_strcmp(leftString, rightString);
+}
+
+U_CFUNC void
+ulocimp_getKeywords(const char *localeID,
+ char prev,
+ ByteSink& sink,
+ UBool valuesToo,
+ UErrorCode *status)
+{
+ KeywordStruct keywordList[ULOC_MAX_NO_KEYWORDS];
+
+ int32_t maxKeywords = ULOC_MAX_NO_KEYWORDS;
+ int32_t numKeywords = 0;
+ const char* pos = localeID;
+ const char* equalSign = nullptr;
+ const char* semicolon = nullptr;
+ int32_t i = 0, j, n;
+
+ if(prev == '@') { /* start of keyword definition */
+ /* we will grab pairs, trim spaces, lowercase keywords, sort and return */
+ do {
+ UBool duplicate = false;
+ /* skip leading spaces */
+ while(*pos == ' ') {
+ pos++;
+ }
+ if (!*pos) { /* handle trailing "; " */
+ break;
+ }
+ if(numKeywords == maxKeywords) {
+ *status = U_INTERNAL_PROGRAM_ERROR;
+ return;
+ }
+ equalSign = uprv_strchr(pos, '=');
+ semicolon = uprv_strchr(pos, ';');
+ /* lack of '=' [foo@currency] is illegal */
+ /* ';' before '=' [foo@currency;collation=pinyin] is illegal */
+ if(!equalSign || (semicolon && semicolon<equalSign)) {
+ *status = U_INVALID_FORMAT_ERROR;
+ return;
+ }
+ /* need to normalize both keyword and keyword name */
+ if(equalSign - pos >= ULOC_KEYWORD_BUFFER_LEN) {
+ /* keyword name too long for internal buffer */
+ *status = U_INTERNAL_PROGRAM_ERROR;
+ return;
+ }
+ for(i = 0, n = 0; i < equalSign - pos; ++i) {
+ if (pos[i] != ' ') {
+ keywordList[numKeywords].keyword[n++] = uprv_tolower(pos[i]);
+ }
+ }
+
+ /* zero-length keyword is an error. */
+ if (n == 0) {
+ *status = U_INVALID_FORMAT_ERROR;
+ return;
+ }
+
+ keywordList[numKeywords].keyword[n] = 0;
+ keywordList[numKeywords].keywordLen = n;
+ /* now grab the value part. First we skip the '=' */
+ equalSign++;
+ /* then we leading spaces */
+ while(*equalSign == ' ') {
+ equalSign++;
+ }
+
+ /* Premature end or zero-length value */
+ if (!*equalSign || equalSign == semicolon) {
+ *status = U_INVALID_FORMAT_ERROR;
+ return;
+ }
+
+ keywordList[numKeywords].valueStart = equalSign;
+
+ pos = semicolon;
+ i = 0;
+ if(pos) {
+ while(*(pos - i - 1) == ' ') {
+ i++;
+ }
+ keywordList[numKeywords].valueLen = (int32_t)(pos - equalSign - i);
+ pos++;
+ } else {
+ i = (int32_t)uprv_strlen(equalSign);
+ while(i && equalSign[i-1] == ' ') {
+ i--;
+ }
+ keywordList[numKeywords].valueLen = i;
+ }
+ /* If this is a duplicate keyword, then ignore it */
+ for (j=0; j<numKeywords; ++j) {
+ if (uprv_strcmp(keywordList[j].keyword, keywordList[numKeywords].keyword) == 0) {
+ duplicate = true;
+ break;
+ }
+ }
+ if (!duplicate) {
+ ++numKeywords;
+ }
+ } while(pos);
+
+ /* now we have a list of keywords */
+ /* we need to sort it */
+ uprv_sortArray(keywordList, numKeywords, sizeof(KeywordStruct), compareKeywordStructs, nullptr, false, status);
+
+ /* Now construct the keyword part */
+ for(i = 0; i < numKeywords; i++) {
+ sink.Append(keywordList[i].keyword, keywordList[i].keywordLen);
+ if(valuesToo) {
+ sink.Append("=", 1);
+ sink.Append(keywordList[i].valueStart, keywordList[i].valueLen);
+ if(i < numKeywords - 1) {
+ sink.Append(";", 1);
+ }
+ } else {
+ sink.Append("\0", 1);
+ }
+ }
+ }
+}
+
+U_CAPI int32_t U_EXPORT2
+uloc_getKeywordValue(const char* localeID,
+ const char* keywordName,
+ char* buffer, int32_t bufferCapacity,
+ UErrorCode* status)
+{
+ if (U_FAILURE(*status)) {
+ return 0;
+ }
+
+ CheckedArrayByteSink sink(buffer, bufferCapacity);
+ ulocimp_getKeywordValue(localeID, keywordName, sink, status);
+
+ int32_t reslen = sink.NumberOfBytesAppended();
+
+ if (U_FAILURE(*status)) {
+ return reslen;
+ }
+
+ if (sink.Overflowed()) {
+ *status = U_BUFFER_OVERFLOW_ERROR;
+ } else {
+ u_terminateChars(buffer, bufferCapacity, reslen, status);
+ }
+
+ return reslen;
+}
+
+U_CAPI void U_EXPORT2
+ulocimp_getKeywordValue(const char* localeID,
+ const char* keywordName,
+ icu::ByteSink& sink,
+ UErrorCode* status)
+{
+ const char* startSearchHere = nullptr;
+ const char* nextSeparator = nullptr;
+ char keywordNameBuffer[ULOC_KEYWORD_BUFFER_LEN];
+ char localeKeywordNameBuffer[ULOC_KEYWORD_BUFFER_LEN];
+
+ if(status && U_SUCCESS(*status) && localeID) {
+ char tempBuffer[ULOC_FULLNAME_CAPACITY];
+ const char* tmpLocaleID;
+
+ if (keywordName == nullptr || keywordName[0] == 0) {
+ *status = U_ILLEGAL_ARGUMENT_ERROR;
+ return;
+ }
+
+ locale_canonKeywordName(keywordNameBuffer, keywordName, status);
+ if(U_FAILURE(*status)) {
+ return;
+ }
+
+ if (_hasBCP47Extension(localeID)) {
+ tmpLocaleID = _ConvertBCP47(localeID, tempBuffer,
+ sizeof(tempBuffer), status, nullptr);
+ } else {
+ tmpLocaleID=localeID;
+ }
+
+ startSearchHere = locale_getKeywordsStart(tmpLocaleID);
+ if(startSearchHere == nullptr) {
+ /* no keywords, return at once */
+ return;
+ }
+
+ /* find the first keyword */
+ while(startSearchHere) {
+ const char* keyValueTail;
+ int32_t keyValueLen;
+
+ startSearchHere++; /* skip @ or ; */
+ nextSeparator = uprv_strchr(startSearchHere, '=');
+ if(!nextSeparator) {
+ *status = U_ILLEGAL_ARGUMENT_ERROR; /* key must have =value */
+ return;
+ }
+ /* strip leading & trailing spaces (TC decided to tolerate these) */
+ while(*startSearchHere == ' ') {
+ startSearchHere++;
+ }
+ keyValueTail = nextSeparator;
+ while (keyValueTail > startSearchHere && *(keyValueTail-1) == ' ') {
+ keyValueTail--;
+ }
+ /* now keyValueTail points to first char after the keyName */
+ /* copy & normalize keyName from locale */
+ if (startSearchHere == keyValueTail) {
+ *status = U_ILLEGAL_ARGUMENT_ERROR; /* empty keyword name in passed-in locale */
+ return;
+ }
+ keyValueLen = 0;
+ while (startSearchHere < keyValueTail) {
+ if (!UPRV_ISALPHANUM(*startSearchHere)) {
+ *status = U_ILLEGAL_ARGUMENT_ERROR; /* malformed keyword name */
+ return;
+ }
+ if (keyValueLen < ULOC_KEYWORD_BUFFER_LEN - 1) {
+ localeKeywordNameBuffer[keyValueLen++] = uprv_tolower(*startSearchHere++);
+ } else {
+ /* keyword name too long for internal buffer */
+ *status = U_INTERNAL_PROGRAM_ERROR;
+ return;
+ }
+ }
+ localeKeywordNameBuffer[keyValueLen] = 0; /* terminate */
+
+ startSearchHere = uprv_strchr(nextSeparator, ';');
+
+ if(uprv_strcmp(keywordNameBuffer, localeKeywordNameBuffer) == 0) {
+ /* current entry matches the keyword. */
+ nextSeparator++; /* skip '=' */
+ /* First strip leading & trailing spaces (TC decided to tolerate these) */
+ while(*nextSeparator == ' ') {
+ nextSeparator++;
+ }
+ keyValueTail = (startSearchHere)? startSearchHere: nextSeparator + uprv_strlen(nextSeparator);
+ while(keyValueTail > nextSeparator && *(keyValueTail-1) == ' ') {
+ keyValueTail--;
+ }
+ /* Now copy the value, but check well-formedness */
+ if (nextSeparator == keyValueTail) {
+ *status = U_ILLEGAL_ARGUMENT_ERROR; /* empty key value name in passed-in locale */
+ return;
+ }
+ while (nextSeparator < keyValueTail) {
+ if (!UPRV_ISALPHANUM(*nextSeparator) && !UPRV_OK_VALUE_PUNCTUATION(*nextSeparator)) {
+ *status = U_ILLEGAL_ARGUMENT_ERROR; /* malformed key value */
+ return;
+ }
+ /* Should we lowercase value to return here? Tests expect as-is. */
+ sink.Append(nextSeparator++, 1);
+ }
+ return;
+ }
+ }
+ }
+}
+
+U_CAPI int32_t U_EXPORT2
+uloc_setKeywordValue(const char* keywordName,
+ const char* keywordValue,
+ char* buffer, int32_t bufferCapacity,
+ UErrorCode* status)
+{
+ /* TODO: sorting. removal. */
+ int32_t keywordNameLen;
+ int32_t keywordValueLen;
+ int32_t bufLen;
+ int32_t needLen = 0;
+ char keywordNameBuffer[ULOC_KEYWORD_BUFFER_LEN];
+ char keywordValueBuffer[ULOC_KEYWORDS_CAPACITY+1];
+ char localeKeywordNameBuffer[ULOC_KEYWORD_BUFFER_LEN];
+ int32_t rc;
+ char* nextSeparator = nullptr;
+ char* nextEqualsign = nullptr;
+ char* startSearchHere = nullptr;
+ char* keywordStart = nullptr;
+ CharString updatedKeysAndValues;
+ UBool handledInputKeyAndValue = false;
+ char keyValuePrefix = '@';
+
+ if(U_FAILURE(*status)) {
+ return -1;
+ }
+ if (*status == U_STRING_NOT_TERMINATED_WARNING) {
+ *status = U_ZERO_ERROR;
+ }
+ if (keywordName == nullptr || keywordName[0] == 0 || bufferCapacity <= 1) {
+ *status = U_ILLEGAL_ARGUMENT_ERROR;
+ return 0;
+ }
+ bufLen = (int32_t)uprv_strlen(buffer);
+ if(bufferCapacity<bufLen) {
+ /* The capacity is less than the length?! Is this NUL terminated? */
+ *status = U_ILLEGAL_ARGUMENT_ERROR;
+ return 0;
+ }
+ keywordNameLen = locale_canonKeywordName(keywordNameBuffer, keywordName, status);
+ if(U_FAILURE(*status)) {
+ return 0;
+ }
+
+ keywordValueLen = 0;
+ if(keywordValue) {
+ while (*keywordValue != 0) {
+ if (!UPRV_ISALPHANUM(*keywordValue) && !UPRV_OK_VALUE_PUNCTUATION(*keywordValue)) {
+ *status = U_ILLEGAL_ARGUMENT_ERROR; /* malformed key value */
+ return 0;
+ }
+ if (keywordValueLen < ULOC_KEYWORDS_CAPACITY) {
+ /* Should we force lowercase in value to set? */
+ keywordValueBuffer[keywordValueLen++] = *keywordValue++;
+ } else {
+ /* keywordValue too long for internal buffer */
+ *status = U_INTERNAL_PROGRAM_ERROR;
+ return 0;
+ }
+ }
+ }
+ keywordValueBuffer[keywordValueLen] = 0; /* terminate */
+
+ startSearchHere = (char*)locale_getKeywordsStart(buffer);
+ if(startSearchHere == nullptr || (startSearchHere[1]==0)) {
+ if(keywordValueLen == 0) { /* no keywords = nothing to remove */
+ U_ASSERT(*status != U_STRING_NOT_TERMINATED_WARNING);
+ return bufLen;
+ }
+
+ needLen = bufLen+1+keywordNameLen+1+keywordValueLen;
+ if(startSearchHere) { /* had a single @ */
+ needLen--; /* already had the @ */
+ /* startSearchHere points at the @ */
+ } else {
+ startSearchHere=buffer+bufLen;
+ }
+ if(needLen >= bufferCapacity) {
+ *status = U_BUFFER_OVERFLOW_ERROR;
+ return needLen; /* no change */
+ }
+ *startSearchHere++ = '@';
+ uprv_strcpy(startSearchHere, keywordNameBuffer);
+ startSearchHere += keywordNameLen;
+ *startSearchHere++ = '=';
+ uprv_strcpy(startSearchHere, keywordValueBuffer);
+ U_ASSERT(*status != U_STRING_NOT_TERMINATED_WARNING);
+ return needLen;
+ } /* end shortcut - no @ */
+
+ keywordStart = startSearchHere;
+ /* search for keyword */
+ while(keywordStart) {
+ const char* keyValueTail;
+ int32_t keyValueLen;
+
+ keywordStart++; /* skip @ or ; */
+ nextEqualsign = uprv_strchr(keywordStart, '=');
+ if (!nextEqualsign) {
+ *status = U_ILLEGAL_ARGUMENT_ERROR; /* key must have =value */
+ return 0;
+ }
+ /* strip leading & trailing spaces (TC decided to tolerate these) */
+ while(*keywordStart == ' ') {
+ keywordStart++;
+ }
+ keyValueTail = nextEqualsign;
+ while (keyValueTail > keywordStart && *(keyValueTail-1) == ' ') {
+ keyValueTail--;
+ }
+ /* now keyValueTail points to first char after the keyName */
+ /* copy & normalize keyName from locale */
+ if (keywordStart == keyValueTail) {
+ *status = U_ILLEGAL_ARGUMENT_ERROR; /* empty keyword name in passed-in locale */
+ return 0;
+ }
+ keyValueLen = 0;
+ while (keywordStart < keyValueTail) {
+ if (!UPRV_ISALPHANUM(*keywordStart)) {
+ *status = U_ILLEGAL_ARGUMENT_ERROR; /* malformed keyword name */
+ return 0;
+ }
+ if (keyValueLen < ULOC_KEYWORD_BUFFER_LEN - 1) {
+ localeKeywordNameBuffer[keyValueLen++] = uprv_tolower(*keywordStart++);
+ } else {
+ /* keyword name too long for internal buffer */
+ *status = U_INTERNAL_PROGRAM_ERROR;
+ return 0;
+ }
+ }
+ localeKeywordNameBuffer[keyValueLen] = 0; /* terminate */
+
+ nextSeparator = uprv_strchr(nextEqualsign, ';');
+
+ /* start processing the value part */
+ nextEqualsign++; /* skip '=' */
+ /* First strip leading & trailing spaces (TC decided to tolerate these) */
+ while(*nextEqualsign == ' ') {
+ nextEqualsign++;
+ }
+ keyValueTail = (nextSeparator)? nextSeparator: nextEqualsign + uprv_strlen(nextEqualsign);
+ while(keyValueTail > nextEqualsign && *(keyValueTail-1) == ' ') {
+ keyValueTail--;
+ }
+ if (nextEqualsign == keyValueTail) {
+ *status = U_ILLEGAL_ARGUMENT_ERROR; /* empty key value in passed-in locale */
+ return 0;
+ }
+
+ rc = uprv_strcmp(keywordNameBuffer, localeKeywordNameBuffer);
+ if(rc == 0) {
+ /* Current entry matches the input keyword. Update the entry */
+ if(keywordValueLen > 0) { /* updating a value */
+ updatedKeysAndValues.append(keyValuePrefix, *status);
+ keyValuePrefix = ';'; /* for any subsequent key-value pair */
+ updatedKeysAndValues.append(keywordNameBuffer, keywordNameLen, *status);
+ updatedKeysAndValues.append('=', *status);
+ updatedKeysAndValues.append(keywordValueBuffer, keywordValueLen, *status);
+ } /* else removing this entry, don't emit anything */
+ handledInputKeyAndValue = true;
+ } else {
+ /* input keyword sorts earlier than current entry, add before current entry */
+ if (rc < 0 && keywordValueLen > 0 && !handledInputKeyAndValue) {
+ /* insert new entry at this location */
+ updatedKeysAndValues.append(keyValuePrefix, *status);
+ keyValuePrefix = ';'; /* for any subsequent key-value pair */
+ updatedKeysAndValues.append(keywordNameBuffer, keywordNameLen, *status);
+ updatedKeysAndValues.append('=', *status);
+ updatedKeysAndValues.append(keywordValueBuffer, keywordValueLen, *status);
+ handledInputKeyAndValue = true;
+ }
+ /* copy the current entry */
+ updatedKeysAndValues.append(keyValuePrefix, *status);
+ keyValuePrefix = ';'; /* for any subsequent key-value pair */
+ updatedKeysAndValues.append(localeKeywordNameBuffer, keyValueLen, *status);
+ updatedKeysAndValues.append('=', *status);
+ updatedKeysAndValues.append(nextEqualsign, static_cast<int32_t>(keyValueTail-nextEqualsign), *status);
+ }
+ if (!nextSeparator && keywordValueLen > 0 && !handledInputKeyAndValue) {
+ /* append new entry at the end, it sorts later than existing entries */
+ updatedKeysAndValues.append(keyValuePrefix, *status);
+ /* skip keyValuePrefix update, no subsequent key-value pair */
+ updatedKeysAndValues.append(keywordNameBuffer, keywordNameLen, *status);
+ updatedKeysAndValues.append('=', *status);
+ updatedKeysAndValues.append(keywordValueBuffer, keywordValueLen, *status);
+ handledInputKeyAndValue = true;
+ }
+ keywordStart = nextSeparator;
+ } /* end loop searching */
+
+ /* Any error from updatedKeysAndValues.append above would be internal and not due to
+ * problems with the passed-in locale. So if we did encounter problems with the
+ * passed-in locale above, those errors took precedence and overrode any error
+ * status from updatedKeysAndValues.append, and also caused a return of 0. If there
+ * are errors here they are from updatedKeysAndValues.append; they do cause an
+ * error return but the passed-in locale is unmodified and the original bufLen is
+ * returned.
+ */
+ if (!handledInputKeyAndValue || U_FAILURE(*status)) {
+ /* if input key/value specified removal of a keyword not present in locale, or
+ * there was an error in CharString.append, leave original locale alone. */
+ U_ASSERT(*status != U_STRING_NOT_TERMINATED_WARNING);
+ return bufLen;
+ }
+
+ // needLen = length of the part before '@'
+ needLen = (int32_t)(startSearchHere - buffer);
+ // Check to see can we fit the startSearchHere, if not, return
+ // U_BUFFER_OVERFLOW_ERROR without copy updatedKeysAndValues into it.
+ // We do this because this API function does not behave like most others:
+ // It promises never to set a U_STRING_NOT_TERMINATED_WARNING.
+ // When the contents fits but without the terminating NUL, in this case we need to not change
+ // the buffer contents and return with a buffer overflow error.
+ int32_t appendLength = updatedKeysAndValues.length();
+ if (appendLength >= bufferCapacity - needLen) {
+ *status = U_BUFFER_OVERFLOW_ERROR;
+ return needLen + appendLength;
+ }
+ needLen += updatedKeysAndValues.extract(
+ startSearchHere, bufferCapacity - needLen, *status);
+ U_ASSERT(*status != U_STRING_NOT_TERMINATED_WARNING);
+ return needLen;
+}
+
+/* ### ID parsing implementation **************************************************/
+
+#define _isPrefixLetter(a) ((a=='x')||(a=='X')||(a=='i')||(a=='I'))
+
+/*returns true if one of the special prefixes is here (s=string)
+ 'x-' or 'i-' */
+#define _isIDPrefix(s) (_isPrefixLetter(s[0])&&_isIDSeparator(s[1]))
+
+/* Dot terminates it because of POSIX form where dot precedes the codepage
+ * except for variant
+ */
+#define _isTerminator(a) ((a==0)||(a=='.')||(a=='@'))
+
+/**
+ * Lookup 'key' in the array 'list'. The array 'list' should contain
+ * a nullptr entry, followed by more entries, and a second nullptr entry.
+ *
+ * The 'list' param should be LANGUAGES, LANGUAGES_3, COUNTRIES, or
+ * COUNTRIES_3.
+ */
+static int16_t _findIndex(const char* const* list, const char* key)
+{
+ const char* const* anchor = list;
+ int32_t pass = 0;
+
+ /* Make two passes through two nullptr-terminated arrays at 'list' */
+ while (pass++ < 2) {
+ while (*list) {
+ if (uprv_strcmp(key, *list) == 0) {
+ return (int16_t)(list - anchor);
+ }
+ list++;
+ }
+ ++list; /* skip final nullptr *CWB*/
+ }
+ return -1;
+}
+
+U_CFUNC const char*
+uloc_getCurrentCountryID(const char* oldID){
+ int32_t offset = _findIndex(DEPRECATED_COUNTRIES, oldID);
+ if (offset >= 0) {
+ return REPLACEMENT_COUNTRIES[offset];
+ }
+ return oldID;
+}
+U_CFUNC const char*
+uloc_getCurrentLanguageID(const char* oldID){
+ int32_t offset = _findIndex(DEPRECATED_LANGUAGES, oldID);
+ if (offset >= 0) {
+ return REPLACEMENT_LANGUAGES[offset];
+ }
+ return oldID;
+}
+/*
+ * the internal functions _getLanguage(), _getCountry(), _getVariant()
+ * avoid duplicating code to handle the earlier locale ID pieces
+ * in the functions for the later ones by
+ * setting the *pEnd pointer to where they stopped parsing
+ *
+ * TODO try to use this in Locale
+ */
+CharString U_EXPORT2
+ulocimp_getLanguage(const char *localeID,
+ const char **pEnd,
+ UErrorCode &status) {
+ CharString result;
+
+ if (uprv_stricmp(localeID, "root") == 0) {
+ localeID += 4;
+ } else if (uprv_strnicmp(localeID, "und", 3) == 0 &&
+ (localeID[3] == '\0' ||
+ localeID[3] == '-' ||
+ localeID[3] == '_' ||
+ localeID[3] == '@')) {
+ localeID += 3;
+ }
+
+ /* if it starts with i- or x- then copy that prefix */
+ if(_isIDPrefix(localeID)) {
+ result.append((char)uprv_tolower(*localeID), status);
+ result.append('-', status);
+ localeID+=2;
+ }
+
+ /* copy the language as far as possible and count its length */
+ while(!_isTerminator(*localeID) && !_isIDSeparator(*localeID)) {
+ result.append((char)uprv_tolower(*localeID), status);
+ localeID++;
+ }
+
+ if(result.length()==3) {
+ /* convert 3 character code to 2 character code if possible *CWB*/
+ int32_t offset = _findIndex(LANGUAGES_3, result.data());
+ if(offset>=0) {
+ result.clear();
+ result.append(LANGUAGES[offset], status);
+ }
+ }
+
+ if(pEnd!=nullptr) {
+ *pEnd=localeID;
+ }
+
+ return result;
+}
+
+CharString U_EXPORT2
+ulocimp_getScript(const char *localeID,
+ const char **pEnd,
+ UErrorCode &status) {
+ CharString result;
+ int32_t idLen = 0;
+
+ if (pEnd != nullptr) {
+ *pEnd = localeID;
+ }
+
+ /* copy the second item as far as possible and count its length */
+ while(!_isTerminator(localeID[idLen]) && !_isIDSeparator(localeID[idLen])
+ && uprv_isASCIILetter(localeID[idLen])) {
+ idLen++;
+ }
+
+ /* If it's exactly 4 characters long, then it's a script and not a country. */
+ if (idLen == 4) {
+ int32_t i;
+ if (pEnd != nullptr) {
+ *pEnd = localeID+idLen;
+ }
+ if (idLen >= 1) {
+ result.append((char)uprv_toupper(*(localeID++)), status);
+ }
+ for (i = 1; i < idLen; i++) {
+ result.append((char)uprv_tolower(*(localeID++)), status);
+ }
+ }
+
+ return result;
+}
+
+CharString U_EXPORT2
+ulocimp_getCountry(const char *localeID,
+ const char **pEnd,
+ UErrorCode &status) {
+ CharString result;
+ int32_t idLen=0;
+
+ /* copy the country as far as possible and count its length */
+ while(!_isTerminator(localeID[idLen]) && !_isIDSeparator(localeID[idLen])) {
+ result.append((char)uprv_toupper(localeID[idLen]), status);
+ idLen++;
+ }
+
+ /* the country should be either length 2 or 3 */
+ if (idLen == 2 || idLen == 3) {
+ /* convert 3 character code to 2 character code if possible *CWB*/
+ if(idLen==3) {
+ int32_t offset = _findIndex(COUNTRIES_3, result.data());
+ if(offset>=0) {
+ result.clear();
+ result.append(COUNTRIES[offset], status);
+ }
+ }
+ localeID+=idLen;
+ } else {
+ result.clear();
+ }
+
+ if(pEnd!=nullptr) {
+ *pEnd=localeID;
+ }
+
+ return result;
+}
+
+/**
+ * @param needSeparator if true, then add leading '_' if any variants
+ * are added to 'variant'
+ */
+static void
+_getVariant(const char *localeID,
+ char prev,
+ ByteSink& sink,
+ UBool needSeparator) {
+ UBool hasVariant = false;
+
+ /* get one or more variant tags and separate them with '_' */
+ if(_isIDSeparator(prev)) {
+ /* get a variant string after a '-' or '_' */
+ while(!_isTerminator(*localeID)) {
+ if (needSeparator) {
+ sink.Append("_", 1);
+ needSeparator = false;
+ }
+ char c = (char)uprv_toupper(*localeID);
+ if (c == '-') c = '_';
+ sink.Append(&c, 1);
+ hasVariant = true;
+ localeID++;
+ }
+ }
+
+ /* if there is no variant tag after a '-' or '_' then look for '@' */
+ if(!hasVariant) {
+ if(prev=='@') {
+ /* keep localeID */
+ } else if((localeID=locale_getKeywordsStart(localeID))!=nullptr) {
+ ++localeID; /* point after the '@' */
+ } else {
+ return;
+ }
+ while(!_isTerminator(*localeID)) {
+ if (needSeparator) {
+ sink.Append("_", 1);
+ needSeparator = false;
+ }
+ char c = (char)uprv_toupper(*localeID);
+ if (c == '-' || c == ',') c = '_';
+ sink.Append(&c, 1);
+ localeID++;
+ }
+ }
+}
+
+/* Keyword enumeration */
+
+typedef struct UKeywordsContext {
+ char* keywords;
+ char* current;
+} UKeywordsContext;
+
+U_CDECL_BEGIN
+
+static void U_CALLCONV
+uloc_kw_closeKeywords(UEnumeration *enumerator) {
+ uprv_free(((UKeywordsContext *)enumerator->context)->keywords);
+ uprv_free(enumerator->context);
+ uprv_free(enumerator);
+}
+
+static int32_t U_CALLCONV
+uloc_kw_countKeywords(UEnumeration *en, UErrorCode * /*status*/) {
+ char *kw = ((UKeywordsContext *)en->context)->keywords;
+ int32_t result = 0;
+ while(*kw) {
+ result++;
+ kw += uprv_strlen(kw)+1;
+ }
+ return result;
+}
+
+static const char * U_CALLCONV
+uloc_kw_nextKeyword(UEnumeration* en,
+ int32_t* resultLength,
+ UErrorCode* /*status*/) {
+ const char* result = ((UKeywordsContext *)en->context)->current;
+ int32_t len = 0;
+ if(*result) {
+ len = (int32_t)uprv_strlen(((UKeywordsContext *)en->context)->current);
+ ((UKeywordsContext *)en->context)->current += len+1;
+ } else {
+ result = nullptr;
+ }
+ if (resultLength) {
+ *resultLength = len;
+ }
+ return result;
+}
+
+static void U_CALLCONV
+uloc_kw_resetKeywords(UEnumeration* en,
+ UErrorCode* /*status*/) {
+ ((UKeywordsContext *)en->context)->current = ((UKeywordsContext *)en->context)->keywords;
+}
+
+U_CDECL_END
+
+
+static const UEnumeration gKeywordsEnum = {
+ nullptr,
+ nullptr,
+ uloc_kw_closeKeywords,
+ uloc_kw_countKeywords,
+ uenum_unextDefault,
+ uloc_kw_nextKeyword,
+ uloc_kw_resetKeywords
+};
+
+U_CAPI UEnumeration* U_EXPORT2
+uloc_openKeywordList(const char *keywordList, int32_t keywordListSize, UErrorCode* status)
+{
+ LocalMemory<UKeywordsContext> myContext;
+ LocalMemory<UEnumeration> result;
+
+ if (U_FAILURE(*status)) {
+ return nullptr;
+ }
+ myContext.adoptInstead(static_cast<UKeywordsContext *>(uprv_malloc(sizeof(UKeywordsContext))));
+ result.adoptInstead(static_cast<UEnumeration *>(uprv_malloc(sizeof(UEnumeration))));
+ if (myContext.isNull() || result.isNull()) {
+ *status = U_MEMORY_ALLOCATION_ERROR;
+ return nullptr;
+ }
+ uprv_memcpy(result.getAlias(), &gKeywordsEnum, sizeof(UEnumeration));
+ myContext->keywords = static_cast<char *>(uprv_malloc(keywordListSize+1));
+ if (myContext->keywords == nullptr) {
+ *status = U_MEMORY_ALLOCATION_ERROR;
+ return nullptr;
+ }
+ uprv_memcpy(myContext->keywords, keywordList, keywordListSize);
+ myContext->keywords[keywordListSize] = 0;
+ myContext->current = myContext->keywords;
+ result->context = myContext.orphan();
+ return result.orphan();
+}
+
+U_CAPI UEnumeration* U_EXPORT2
+uloc_openKeywords(const char* localeID,
+ UErrorCode* status)
+{
+ char tempBuffer[ULOC_FULLNAME_CAPACITY];
+ const char* tmpLocaleID;
+
+ if(status==nullptr || U_FAILURE(*status)) {
+ return 0;
+ }
+
+ if (_hasBCP47Extension(localeID)) {
+ tmpLocaleID = _ConvertBCP47(localeID, tempBuffer,
+ sizeof(tempBuffer), status, nullptr);
+ } else {
+ if (localeID==nullptr) {
+ localeID=uloc_getDefault();
+ }
+ tmpLocaleID=localeID;
+ }
+
+ /* Skip the language */
+ ulocimp_getLanguage(tmpLocaleID, &tmpLocaleID, *status);
+ if (U_FAILURE(*status)) {
+ return 0;
+ }
+
+ if(_isIDSeparator(*tmpLocaleID)) {
+ const char *scriptID;
+ /* Skip the script if available */
+ ulocimp_getScript(tmpLocaleID+1, &scriptID, *status);
+ if (U_FAILURE(*status)) {
+ return 0;
+ }
+ if(scriptID != tmpLocaleID+1) {
+ /* Found optional script */
+ tmpLocaleID = scriptID;
+ }
+ /* Skip the Country */
+ if (_isIDSeparator(*tmpLocaleID)) {
+ ulocimp_getCountry(tmpLocaleID+1, &tmpLocaleID, *status);
+ if (U_FAILURE(*status)) {
+ return 0;
+ }
+ }
+ }
+
+ /* keywords are located after '@' */
+ if((tmpLocaleID = locale_getKeywordsStart(tmpLocaleID)) != nullptr) {
+ CharString keywords;
+ CharStringByteSink sink(&keywords);
+ ulocimp_getKeywords(tmpLocaleID+1, '@', sink, false, status);
+ if (U_FAILURE(*status)) {
+ return nullptr;
+ }
+ return uloc_openKeywordList(keywords.data(), keywords.length(), status);
+ }
+ return nullptr;
+}
+
+
+/* bit-flags for 'options' parameter of _canonicalize */
+#define _ULOC_STRIP_KEYWORDS 0x2
+#define _ULOC_CANONICALIZE 0x1
+
+#define OPTION_SET(options, mask) ((options & mask) != 0)
+
+static const char i_default[] = {'i', '-', 'd', 'e', 'f', 'a', 'u', 'l', 't'};
+#define I_DEFAULT_LENGTH UPRV_LENGTHOF(i_default)
+
+/**
+ * Canonicalize the given localeID, to level 1 or to level 2,
+ * depending on the options. To specify level 1, pass in options=0.
+ * To specify level 2, pass in options=_ULOC_CANONICALIZE.
+ *
+ * This is the code underlying uloc_getName and uloc_canonicalize.
+ */
+static void
+_canonicalize(const char* localeID,
+ ByteSink& sink,
+ uint32_t options,
+ UErrorCode* err) {
+ if (U_FAILURE(*err)) {
+ return;
+ }
+
+ int32_t j, fieldCount=0, scriptSize=0, variantSize=0;
+ PreflightingLocaleIDBuffer tempBuffer; // if localeID has a BCP47 extension, tmpLocaleID points to this
+ CharString localeIDWithHyphens; // if localeID has a BPC47 extension and have _, tmpLocaleID points to this
+ const char* origLocaleID;
+ const char* tmpLocaleID;
+ const char* keywordAssign = nullptr;
+ const char* separatorIndicator = nullptr;
+
+ if (_hasBCP47Extension(localeID)) {
+ const char* localeIDPtr = localeID;
+
+ // convert all underbars to hyphens, unless the "BCP47 extension" comes at the beginning of the string
+ if (uprv_strchr(localeID, '_') != nullptr && localeID[1] != '-' && localeID[1] != '_') {
+ localeIDWithHyphens.append(localeID, -1, *err);
+ if (U_SUCCESS(*err)) {
+ for (char* p = localeIDWithHyphens.data(); *p != '\0'; ++p) {
+ if (*p == '_') {
+ *p = '-';
+ }
+ }
+ localeIDPtr = localeIDWithHyphens.data();
+ }
+ }
+
+ do {
+ // After this call tmpLocaleID may point to localeIDPtr which may
+ // point to either localeID or localeIDWithHyphens.data().
+ tmpLocaleID = _ConvertBCP47(localeIDPtr, tempBuffer.getBuffer(),
+ tempBuffer.getCapacity(), err,
+ &(tempBuffer.requestedCapacity));
+ } while (tempBuffer.needToTryAgain(err));
+ } else {
+ if (localeID==nullptr) {
+ localeID=uloc_getDefault();
+ }
+ tmpLocaleID=localeID;
+ }
+
+ origLocaleID=tmpLocaleID;
+
+ /* get all pieces, one after another, and separate with '_' */
+ CharString tag = ulocimp_getLanguage(tmpLocaleID, &tmpLocaleID, *err);
+
+ if (tag.length() == I_DEFAULT_LENGTH &&
+ uprv_strncmp(origLocaleID, i_default, I_DEFAULT_LENGTH) == 0) {
+ tag.clear();
+ tag.append(uloc_getDefault(), *err);
+ } else if(_isIDSeparator(*tmpLocaleID)) {
+ const char *scriptID;
+
+ ++fieldCount;
+ tag.append('_', *err);
+
+ CharString script = ulocimp_getScript(tmpLocaleID+1, &scriptID, *err);
+ tag.append(script, *err);
+ scriptSize = script.length();
+ if(scriptSize > 0) {
+ /* Found optional script */
+ tmpLocaleID = scriptID;
+ ++fieldCount;
+ if (_isIDSeparator(*tmpLocaleID)) {
+ /* If there is something else, then we add the _ */
+ tag.append('_', *err);
+ }
+ }
+
+ if (_isIDSeparator(*tmpLocaleID)) {
+ const char *cntryID;
+
+ CharString country = ulocimp_getCountry(tmpLocaleID+1, &cntryID, *err);
+ tag.append(country, *err);
+ if (!country.isEmpty()) {
+ /* Found optional country */
+ tmpLocaleID = cntryID;
+ }
+ if(_isIDSeparator(*tmpLocaleID)) {
+ /* If there is something else, then we add the _ if we found country before. */
+ if (!_isIDSeparator(*(tmpLocaleID+1))) {
+ ++fieldCount;
+ tag.append('_', *err);
+ }
+
+ variantSize = -tag.length();
+ {
+ CharStringByteSink s(&tag);
+ _getVariant(tmpLocaleID+1, *tmpLocaleID, s, false);
+ }
+ variantSize += tag.length();
+ if (variantSize > 0) {
+ tmpLocaleID += variantSize + 1; /* skip '_' and variant */
+ }
+ }
+ }
+ }
+
+ /* Copy POSIX-style charset specifier, if any [mr.utf8] */
+ if (!OPTION_SET(options, _ULOC_CANONICALIZE) && *tmpLocaleID == '.') {
+ UBool done = false;
+ do {
+ char c = *tmpLocaleID;
+ switch (c) {
+ case 0:
+ case '@':
+ done = true;
+ break;
+ default:
+ tag.append(c, *err);
+ ++tmpLocaleID;
+ break;
+ }
+ } while (!done);
+ }
+
+ /* Scan ahead to next '@' and determine if it is followed by '=' and/or ';'
+ After this, tmpLocaleID either points to '@' or is nullptr */
+ if ((tmpLocaleID=locale_getKeywordsStart(tmpLocaleID))!=nullptr) {
+ keywordAssign = uprv_strchr(tmpLocaleID, '=');
+ separatorIndicator = uprv_strchr(tmpLocaleID, ';');
+ }
+
+ /* Copy POSIX-style variant, if any [mr@FOO] */
+ if (!OPTION_SET(options, _ULOC_CANONICALIZE) &&
+ tmpLocaleID != nullptr && keywordAssign == nullptr) {
+ for (;;) {
+ char c = *tmpLocaleID;
+ if (c == 0) {
+ break;
+ }
+ tag.append(c, *err);
+ ++tmpLocaleID;
+ }
+ }
+
+ if (OPTION_SET(options, _ULOC_CANONICALIZE)) {
+ /* Handle @FOO variant if @ is present and not followed by = */
+ if (tmpLocaleID!=nullptr && keywordAssign==nullptr) {
+ /* Add missing '_' if needed */
+ if (fieldCount < 2 || (fieldCount < 3 && scriptSize > 0)) {
+ do {
+ tag.append('_', *err);
+ ++fieldCount;
+ } while(fieldCount<2);
+ }
+
+ int32_t posixVariantSize = -tag.length();
+ {
+ CharStringByteSink s(&tag);
+ _getVariant(tmpLocaleID+1, '@', s, (UBool)(variantSize > 0));
+ }
+ posixVariantSize += tag.length();
+ if (posixVariantSize > 0) {
+ variantSize += posixVariantSize;
+ }
+ }
+
+ /* Look up the ID in the canonicalization map */
+ for (j=0; j<UPRV_LENGTHOF(CANONICALIZE_MAP); j++) {
+ StringPiece id(CANONICALIZE_MAP[j].id);
+ if (tag == id) {
+ if (id.empty() && tmpLocaleID != nullptr) {
+ break; /* Don't remap "" if keywords present */
+ }
+ tag.clear();
+ tag.append(CANONICALIZE_MAP[j].canonicalID, *err);
+ break;
+ }
+ }
+ }
+
+ sink.Append(tag.data(), tag.length());
+
+ if (!OPTION_SET(options, _ULOC_STRIP_KEYWORDS)) {
+ if (tmpLocaleID!=nullptr && keywordAssign!=nullptr &&
+ (!separatorIndicator || separatorIndicator > keywordAssign)) {
+ sink.Append("@", 1);
+ ++fieldCount;
+ ulocimp_getKeywords(tmpLocaleID+1, '@', sink, true, err);
+ }
+ }
+}
+
+/* ### ID parsing API **************************************************/
+
+U_CAPI int32_t U_EXPORT2
+uloc_getParent(const char* localeID,
+ char* parent,
+ int32_t parentCapacity,
+ UErrorCode* err)
+{
+ const char *lastUnderscore;
+ int32_t i;
+
+ if (U_FAILURE(*err))
+ return 0;
+
+ if (localeID == nullptr)
+ localeID = uloc_getDefault();
+
+ lastUnderscore=uprv_strrchr(localeID, '_');
+ if(lastUnderscore!=nullptr) {
+ i=(int32_t)(lastUnderscore-localeID);
+ } else {
+ i=0;
+ }
+
+ if (i > 0) {
+ if (uprv_strnicmp(localeID, "und_", 4) == 0) {
+ localeID += 3;
+ i -= 3;
+ uprv_memmove(parent, localeID, uprv_min(i, parentCapacity));
+ } else if (parent != localeID) {
+ uprv_memcpy(parent, localeID, uprv_min(i, parentCapacity));
+ }
+ }
+
+ return u_terminateChars(parent, parentCapacity, i, err);
+}
+
+U_CAPI int32_t U_EXPORT2
+uloc_getLanguage(const char* localeID,
+ char* language,
+ int32_t languageCapacity,
+ UErrorCode* err)
+{
+ /* uloc_getLanguage will return a 2 character iso-639 code if one exists. *CWB*/
+
+ if (err==nullptr || U_FAILURE(*err)) {
+ return 0;
+ }
+
+ if(localeID==nullptr) {
+ localeID=uloc_getDefault();
+ }
+
+ return ulocimp_getLanguage(localeID, nullptr, *err).extract(language, languageCapacity, *err);
+}
+
+U_CAPI int32_t U_EXPORT2
+uloc_getScript(const char* localeID,
+ char* script,
+ int32_t scriptCapacity,
+ UErrorCode* err)
+{
+ if(err==nullptr || U_FAILURE(*err)) {
+ return 0;
+ }
+
+ if(localeID==nullptr) {
+ localeID=uloc_getDefault();
+ }
+
+ /* skip the language */
+ ulocimp_getLanguage(localeID, &localeID, *err);
+ if (U_FAILURE(*err)) {
+ return 0;
+ }
+
+ if(_isIDSeparator(*localeID)) {
+ return ulocimp_getScript(localeID+1, nullptr, *err).extract(script, scriptCapacity, *err);
+ }
+ return u_terminateChars(script, scriptCapacity, 0, err);
+}
+
+U_CAPI int32_t U_EXPORT2
+uloc_getCountry(const char* localeID,
+ char* country,
+ int32_t countryCapacity,
+ UErrorCode* err)
+{
+ if(err==nullptr || U_FAILURE(*err)) {
+ return 0;
+ }
+
+ if(localeID==nullptr) {
+ localeID=uloc_getDefault();
+ }
+
+ /* Skip the language */
+ ulocimp_getLanguage(localeID, &localeID, *err);
+ if (U_FAILURE(*err)) {
+ return 0;
+ }
+
+ if(_isIDSeparator(*localeID)) {
+ const char *scriptID;
+ /* Skip the script if available */
+ ulocimp_getScript(localeID+1, &scriptID, *err);
+ if (U_FAILURE(*err)) {
+ return 0;
+ }
+ if(scriptID != localeID+1) {
+ /* Found optional script */
+ localeID = scriptID;
+ }
+ if(_isIDSeparator(*localeID)) {
+ return ulocimp_getCountry(localeID+1, nullptr, *err).extract(country, countryCapacity, *err);
+ }
+ }
+ return u_terminateChars(country, countryCapacity, 0, err);
+}
+
+U_CAPI int32_t U_EXPORT2
+uloc_getVariant(const char* localeID,
+ char* variant,
+ int32_t variantCapacity,
+ UErrorCode* err)
+{
+ char tempBuffer[ULOC_FULLNAME_CAPACITY];
+ const char* tmpLocaleID;
+ int32_t i=0;
+
+ if(err==nullptr || U_FAILURE(*err)) {
+ return 0;
+ }
+
+ if (_hasBCP47Extension(localeID)) {
+ tmpLocaleID =_ConvertBCP47(localeID, tempBuffer, sizeof(tempBuffer), err, nullptr);
+ } else {
+ if (localeID==nullptr) {
+ localeID=uloc_getDefault();
+ }
+ tmpLocaleID=localeID;
+ }
+
+ /* Skip the language */
+ ulocimp_getLanguage(tmpLocaleID, &tmpLocaleID, *err);
+ if (U_FAILURE(*err)) {
+ return 0;
+ }
+
+ if(_isIDSeparator(*tmpLocaleID)) {
+ const char *scriptID;
+ /* Skip the script if available */
+ ulocimp_getScript(tmpLocaleID+1, &scriptID, *err);
+ if (U_FAILURE(*err)) {
+ return 0;
+ }
+ if(scriptID != tmpLocaleID+1) {
+ /* Found optional script */
+ tmpLocaleID = scriptID;
+ }
+ /* Skip the Country */
+ if (_isIDSeparator(*tmpLocaleID)) {
+ const char *cntryID;
+ ulocimp_getCountry(tmpLocaleID+1, &cntryID, *err);
+ if (U_FAILURE(*err)) {
+ return 0;
+ }
+ if (cntryID != tmpLocaleID+1) {
+ /* Found optional country */
+ tmpLocaleID = cntryID;
+ }
+ if(_isIDSeparator(*tmpLocaleID)) {
+ /* If there was no country ID, skip a possible extra IDSeparator */
+ if (tmpLocaleID != cntryID && _isIDSeparator(tmpLocaleID[1])) {
+ tmpLocaleID++;
+ }
+
+ CheckedArrayByteSink sink(variant, variantCapacity);
+ _getVariant(tmpLocaleID+1, *tmpLocaleID, sink, false);
+
+ i = sink.NumberOfBytesAppended();
+
+ if (U_FAILURE(*err)) {
+ return i;
+ }
+
+ if (sink.Overflowed()) {
+ *err = U_BUFFER_OVERFLOW_ERROR;
+ return i;
+ }
+ }
+ }
+ }
+
+ return u_terminateChars(variant, variantCapacity, i, err);
+}
+
+U_CAPI int32_t U_EXPORT2
+uloc_getName(const char* localeID,
+ char* name,
+ int32_t nameCapacity,
+ UErrorCode* err)
+{
+ if (U_FAILURE(*err)) {
+ return 0;
+ }
+
+ CheckedArrayByteSink sink(name, nameCapacity);
+ ulocimp_getName(localeID, sink, err);
+
+ int32_t reslen = sink.NumberOfBytesAppended();
+
+ if (U_FAILURE(*err)) {
+ return reslen;
+ }
+
+ if (sink.Overflowed()) {
+ *err = U_BUFFER_OVERFLOW_ERROR;
+ } else {
+ u_terminateChars(name, nameCapacity, reslen, err);
+ }
+
+ return reslen;
+}
+
+U_CAPI void U_EXPORT2
+ulocimp_getName(const char* localeID,
+ ByteSink& sink,
+ UErrorCode* err)
+{
+ _canonicalize(localeID, sink, 0, err);
+}
+
+U_CAPI int32_t U_EXPORT2
+uloc_getBaseName(const char* localeID,
+ char* name,
+ int32_t nameCapacity,
+ UErrorCode* err)
+{
+ if (U_FAILURE(*err)) {
+ return 0;
+ }
+
+ CheckedArrayByteSink sink(name, nameCapacity);
+ ulocimp_getBaseName(localeID, sink, err);
+
+ int32_t reslen = sink.NumberOfBytesAppended();
+
+ if (U_FAILURE(*err)) {
+ return reslen;
+ }
+
+ if (sink.Overflowed()) {
+ *err = U_BUFFER_OVERFLOW_ERROR;
+ } else {
+ u_terminateChars(name, nameCapacity, reslen, err);
+ }
+
+ return reslen;
+}
+
+U_CAPI void U_EXPORT2
+ulocimp_getBaseName(const char* localeID,
+ ByteSink& sink,
+ UErrorCode* err)
+{
+ _canonicalize(localeID, sink, _ULOC_STRIP_KEYWORDS, err);
+}
+
+U_CAPI int32_t U_EXPORT2
+uloc_canonicalize(const char* localeID,
+ char* name,
+ int32_t nameCapacity,
+ UErrorCode* err)
+{
+ if (U_FAILURE(*err)) {
+ return 0;
+ }
+
+ CheckedArrayByteSink sink(name, nameCapacity);
+ ulocimp_canonicalize(localeID, sink, err);
+
+ int32_t reslen = sink.NumberOfBytesAppended();
+
+ if (U_FAILURE(*err)) {
+ return reslen;
+ }
+
+ if (sink.Overflowed()) {
+ *err = U_BUFFER_OVERFLOW_ERROR;
+ } else {
+ u_terminateChars(name, nameCapacity, reslen, err);
+ }
+
+ return reslen;
+}
+
+U_CAPI void U_EXPORT2
+ulocimp_canonicalize(const char* localeID,
+ ByteSink& sink,
+ UErrorCode* err)
+{
+ _canonicalize(localeID, sink, _ULOC_CANONICALIZE, err);
+}
+
+U_CAPI const char* U_EXPORT2
+uloc_getISO3Language(const char* localeID)
+{
+ int16_t offset;
+ char lang[ULOC_LANG_CAPACITY];
+ UErrorCode err = U_ZERO_ERROR;
+
+ if (localeID == nullptr)
+ {
+ localeID = uloc_getDefault();
+ }
+ uloc_getLanguage(localeID, lang, ULOC_LANG_CAPACITY, &err);
+ if (U_FAILURE(err))
+ return "";
+ offset = _findIndex(LANGUAGES, lang);
+ if (offset < 0)
+ return "";
+ return LANGUAGES_3[offset];
+}
+
+U_CAPI const char* U_EXPORT2
+uloc_getISO3Country(const char* localeID)
+{
+ int16_t offset;
+ char cntry[ULOC_LANG_CAPACITY];
+ UErrorCode err = U_ZERO_ERROR;
+
+ if (localeID == nullptr)
+ {
+ localeID = uloc_getDefault();
+ }
+ uloc_getCountry(localeID, cntry, ULOC_LANG_CAPACITY, &err);
+ if (U_FAILURE(err))
+ return "";
+ offset = _findIndex(COUNTRIES, cntry);
+ if (offset < 0)
+ return "";
+
+ return COUNTRIES_3[offset];
+}
+
+U_CAPI uint32_t U_EXPORT2
+uloc_getLCID(const char* localeID)
+{
+ UErrorCode status = U_ZERO_ERROR;
+ char langID[ULOC_FULLNAME_CAPACITY];
+ uint32_t lcid = 0;
+
+ /* Check for incomplete id. */
+ if (!localeID || uprv_strlen(localeID) < 2) {
+ return 0;
+ }
+
+ // First, attempt Windows platform lookup if available, but fall
+ // through to catch any special cases (ICU vs Windows name differences).
+ lcid = uprv_convertToLCIDPlatform(localeID, &status);
+ if (U_FAILURE(status)) {
+ return 0;
+ }
+ if (lcid > 0) {
+ // Windows found an LCID, return that
+ return lcid;
+ }
+
+ uloc_getLanguage(localeID, langID, sizeof(langID), &status);
+ if (U_FAILURE(status) || status == U_STRING_NOT_TERMINATED_WARNING) {
+ return 0;
+ }
+
+ if (uprv_strchr(localeID, '@')) {
+ // uprv_convertToLCID does not support keywords other than collation.
+ // Remove all keywords except collation.
+ int32_t len;
+ char tmpLocaleID[ULOC_FULLNAME_CAPACITY];
+
+ CharString collVal;
+ {
+ CharStringByteSink sink(&collVal);
+ ulocimp_getKeywordValue(localeID, "collation", sink, &status);
+ }
+
+ if (U_SUCCESS(status) && !collVal.isEmpty()) {
+ len = uloc_getBaseName(localeID, tmpLocaleID,
+ UPRV_LENGTHOF(tmpLocaleID) - 1, &status);
+
+ if (U_SUCCESS(status) && len > 0) {
+ tmpLocaleID[len] = 0;
+
+ len = uloc_setKeywordValue("collation", collVal.data(), tmpLocaleID,
+ UPRV_LENGTHOF(tmpLocaleID) - len - 1, &status);
+
+ if (U_SUCCESS(status) && len > 0) {
+ tmpLocaleID[len] = 0;
+ return uprv_convertToLCID(langID, tmpLocaleID, &status);
+ }
+ }
+ }
+
+ // fall through - all keywords are simply ignored
+ status = U_ZERO_ERROR;
+ }
+
+ return uprv_convertToLCID(langID, localeID, &status);
+}
+
+U_CAPI int32_t U_EXPORT2
+uloc_getLocaleForLCID(uint32_t hostid, char *locale, int32_t localeCapacity,
+ UErrorCode *status)
+{
+ return uprv_convertToPosix(hostid, locale, localeCapacity, status);
+}
+
+/* ### Default locale **************************************************/
+
+U_CAPI const char* U_EXPORT2
+uloc_getDefault()
+{
+ return locale_get_default();
+}
+
+U_CAPI void U_EXPORT2
+uloc_setDefault(const char* newDefaultLocale,
+ UErrorCode* err)
+{
+ if (U_FAILURE(*err))
+ return;
+ /* the error code isn't currently used for anything by this function*/
+
+ /* propagate change to C++ */
+ locale_set_default(newDefaultLocale);
+}
+
+/**
+ * Returns a list of all 2-letter language codes defined in ISO 639. This is a pointer
+ * to an array of pointers to arrays of char. All of these pointers are owned
+ * by ICU-- do not delete them, and do not write through them. The array is
+ * terminated with a null pointer.
+ */
+U_CAPI const char* const* U_EXPORT2
+uloc_getISOLanguages()
+{
+ return LANGUAGES;
+}
+
+/**
+ * Returns a list of all 2-letter country codes defined in ISO 639. This is a
+ * pointer to an array of pointers to arrays of char. All of these pointers are
+ * owned by ICU-- do not delete them, and do not write through them. The array is
+ * terminated with a null pointer.
+ */
+U_CAPI const char* const* U_EXPORT2
+uloc_getISOCountries()
+{
+ return COUNTRIES;
+}
+
+U_CAPI const char* U_EXPORT2
+uloc_toUnicodeLocaleKey(const char* keyword)
+{
+ const char* bcpKey = ulocimp_toBcpKey(keyword);
+ if (bcpKey == nullptr && ultag_isUnicodeLocaleKey(keyword, -1)) {
+ // unknown keyword, but syntax is fine..
+ return keyword;
+ }
+ return bcpKey;
+}
+
+U_CAPI const char* U_EXPORT2
+uloc_toUnicodeLocaleType(const char* keyword, const char* value)
+{
+ const char* bcpType = ulocimp_toBcpType(keyword, value, nullptr, nullptr);
+ if (bcpType == nullptr && ultag_isUnicodeLocaleType(value, -1)) {
+ // unknown keyword, but syntax is fine..
+ return value;
+ }
+ return bcpType;
+}
+
+static UBool
+isWellFormedLegacyKey(const char* legacyKey)
+{
+ const char* p = legacyKey;
+ while (*p) {
+ if (!UPRV_ISALPHANUM(*p)) {
+ return false;
+ }
+ p++;
+ }
+ return true;
+}
+
+static UBool
+isWellFormedLegacyType(const char* legacyType)
+{
+ const char* p = legacyType;
+ int32_t alphaNumLen = 0;
+ while (*p) {
+ if (*p == '_' || *p == '/' || *p == '-') {
+ if (alphaNumLen == 0) {
+ return false;
+ }
+ alphaNumLen = 0;
+ } else if (UPRV_ISALPHANUM(*p)) {
+ alphaNumLen++;
+ } else {
+ return false;
+ }
+ p++;
+ }
+ return (alphaNumLen != 0);
+}
+
+U_CAPI const char* U_EXPORT2
+uloc_toLegacyKey(const char* keyword)
+{
+ const char* legacyKey = ulocimp_toLegacyKey(keyword);
+ if (legacyKey == nullptr) {
+ // Checks if the specified locale key is well-formed with the legacy locale syntax.
+ //
+ // Note:
+ // LDML/CLDR provides some definition of keyword syntax in
+ // * http://www.unicode.org/reports/tr35/#Unicode_locale_identifier and
+ // * http://www.unicode.org/reports/tr35/#Old_Locale_Extension_Syntax
+ // Keys can only consist of [0-9a-zA-Z].
+ if (isWellFormedLegacyKey(keyword)) {
+ return keyword;
+ }
+ }
+ return legacyKey;
+}
+
+U_CAPI const char* U_EXPORT2
+uloc_toLegacyType(const char* keyword, const char* value)
+{
+ const char* legacyType = ulocimp_toLegacyType(keyword, value, nullptr, nullptr);
+ if (legacyType == nullptr) {
+ // Checks if the specified locale type is well-formed with the legacy locale syntax.
+ //
+ // Note:
+ // LDML/CLDR provides some definition of keyword syntax in
+ // * http://www.unicode.org/reports/tr35/#Unicode_locale_identifier and
+ // * http://www.unicode.org/reports/tr35/#Old_Locale_Extension_Syntax
+ // Values (types) can only consist of [0-9a-zA-Z], plus for legacy values
+ // we allow [/_-+] in the middle (e.g. "Etc/GMT+1", "Asia/Tel_Aviv")
+ if (isWellFormedLegacyType(value)) {
+ return value;
+ }
+ }
+ return legacyType;
+}
+
+/*eof*/
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-19 02:53:53 +0000