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compact_lang_det_hint_code.cc
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compact_lang_det_hint_code.cc
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// Copyright 2013 Google Inc. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// Author: [email protected] (Dick Sites)
//
#include "compact_lang_det_hint_code.h"
#include <stdlib.h> // for abs()
#include <stdio.h> // for sprintf()
#include <string.h> //
#include "lang_script.h"
#include "port.h"
using namespace std;
namespace CLD2 {
static const int kCLDPriorEncodingWeight = 4; // 100x more likely
static const int kCLDPriorLanguageWeight = 8; // 10000x more likely
// Tables to map lang="..." language code lists to actual languages.
// based on scraping and hand-edits, dsites June 2011
// n = f(string, &a) gives list of n<=4 language pairs: primary, secondary
// For close pairs like ms/id, more weight on TLD and lang=
// Alternately, weaker boost but mark others of set as negative;
// makes "neither" an easier result.
// lang=en low weight 4
// tld=lu boost lu maaybe 4. but lang= alwyas overcomes tld and encoding
// (except maybe en)
// TLD to separate, e.g., burundi from rwanda
// Encoding lookup: OneLangProb array
// TLD lookup: tld OneLangProb pairs
typedef struct {
const char* const langtag; // Lowercased, hyphen only lookup key
const char* const langcode; // Canonical language codes; two if ambiguous
OneCLDLangPrior onelangprior1;
OneCLDLangPrior onelangprior2;
} LangTagLookup;
typedef struct {
const char* const tld; // Lowercased, hyphen only lookup key
OneCLDLangPrior onelangprior1;
OneCLDLangPrior onelangprior2;
} TLDLookup;
#define W2 (2 << 10) // 3**2 = 10x more likely
#define W4 (4 << 10) // 3**4 = 100x more likely
#define W6 (6 << 10) // 3**6 = 1000x more likely
#define W8 (8 << 10) // 3**8 = 10K x more likely
#define W10 (10 << 10) // 3**10 = 100K x more likely
#define W12 (12 << 10) // 3**12 = 1M x more likely
// TODO: more about ba hr sr sr-ME and sl
// Temporary state of affairs:
// BOSNIAN CROATIAN MONTENEGRIN SERBIAN detecting just CROATIAN SERBIAN
// Eventually, we want to do all four, but it requires a CLD change to handle
// up to six languages per quadgram.
// Close pairs boost one of pair, demote other.
// Statistically close pairs:
// INDONESIAN/MALAY difficult to distinguish -- extra word-based lookups used
//
// INDONESIAN MALAY coef=0.4698 Problematic w/o extra words
// TIBETAN DZONGKHA coef=0.4571
// CZECH SLOVAK coef=0.4273
// NORWEGIAN NORWEGIAN_N coef=0.4182
//
// HINDI MARATHI coef=0.3795
// ZULU XHOSA coef=0.3716
//
// DANISH NORWEGIAN coef=0.3672 Usually OK
// BIHARI HINDI coef=0.3668 Usually OK
// ICELANDIC FAROESE coef=0.3519 Usually OK
//
// Table to look up lang= tags longer than three characters
// Overrides table below, which is truncated at first hyphen
// In alphabetical order for binary search
static const int kCLDTable1Size = 213;
static const LangTagLookup kCLDLangTagsHintTable1[kCLDTable1Size] = {
{"abkhazian", "ab", ABKHAZIAN + W10, 0},
{"afar", "aa", AFAR + W10, 0},
{"afrikaans", "af", AFRIKAANS + W10, 0},
{"akan", "ak", AKAN + W10, 0},
{"albanian", "sq", ALBANIAN + W10, 0},
{"am-am", "hy", ARMENIAN + W10, 0}, // 1:2 Armenian, not ambiguous
{"amharic", "am", AMHARIC + W10, 0},
{"arabic", "ar", ARABIC + W10, 0},
{"argentina", "es", SPANISH + W10, 0},
{"armenian", "hy", ARMENIAN + W10, 0},
{"assamese", "as", ASSAMESE + W10, 0},
{"aymara", "ay", AYMARA + W10, 0},
{"azerbaijani", "az", AZERBAIJANI + W10, 0},
{"bangla", "bn", BENGALI + W10, 0},
{"bashkir", "ba", BASHKIR + W10, 0},
{"basque", "eu", BASQUE + W10, 0},
{"belarusian", "be", BELARUSIAN + W10, 0},
{"bengali", "bn", BENGALI + W10, 0},
{"bihari", "bh", BIHARI + W10, HINDI - W4},
{"bislama", "bi", BISLAMA + W10, 0},
{"bosnian", "bs", BOSNIAN + W10, 0}, // Bosnian => Bosnian
{"br-br", "pt", PORTUGUESE + W10, 0}, // 1:2 Portuguese, not ambiguous
{"br-fr", "br", BRETON + W10, 0}, // 1:2 Breton, not ambiguous
{"breton", "br", BRETON + W10, 0},
{"bulgarian", "bg", BULGARIAN + W10, 0},
{"burmese", "my", BURMESE + W10, 0}, // Myanmar
{"catalan", "ca", CATALAN + W10, 0},
{"cherokee", "chr", CHEROKEE + W10, 0},
{"chichewa", "ny", NYANJA + W10, 0},
{"chinese", "zh", CHINESE + W10, 0},
{"chinese-t", "zhT", CHINESE_T + W10, 0},
{"chineset", "zhT", CHINESE_T + W10, 0},
{"corsican", "co", CORSICAN + W10, 0},
{"cpf-hat", "ht", HAITIAN_CREOLE + W10, 0}, // Creole, French-based
{"croatian", "hr", CROATIAN + W10, 0},
{"czech", "cs", CZECH + W10, SLOVAK - W4},
{"danish", "da", DANISH + W10, NORWEGIAN - W4},
{"deutsch", "de", GERMAN + W10, 0},
{"dhivehi", "dv", DHIVEHI + W10, 0},
{"dutch", "nl", DUTCH + W10, 0},
{"dzongkha", "dz", DZONGKHA + W10, TIBETAN - W4},
{"ell-gr", "el", GREEK + W10, 0},
{"english", "en", ENGLISH + W4, 0},
{"esperanto", "eo", ESPERANTO + W10, 0},
{"estonian", "et", ESTONIAN + W10, 0},
{"euc-jp", "ja", JAPANESE + W10, 0}, // Japanese encoding
{"euc-kr", "ko", KOREAN + W10, 0}, // Korean encoding
{"faroese", "fo", FAROESE + W10, ICELANDIC - W4},
{"fijian", "fj", FIJIAN + W10, 0},
{"finnish", "fi", FINNISH + W10, 0},
{"fran", "fr", FRENCH + W10, 0}, // Truncated at non-ASCII
{"francais", "fr", FRENCH + W10, 0},
{"french", "fr", FRENCH + W10, 0},
{"frisian", "fy", FRISIAN + W10, 0},
{"ga-es", "gl", GALICIAN + W10, 0}, // 1:2 Galician, not ambiguous
{"galician", "gl", GALICIAN + W10, 0},
{"ganda", "lg", GANDA + W10, 0},
{"georgian", "ka", GEORGIAN + W10, 0},
{"german", "de", GERMAN + W10, 0},
{"greek", "el", GREEK + W10, 0},
{"greenlandic", "kl", GREENLANDIC + W10, 0},
{"guarani", "gn", GUARANI + W10, 0},
{"gujarati", "gu", GUJARATI + W10, 0},
{"haitian_creole", "ht", HAITIAN_CREOLE + W10, 0},
{"hausa", "ha", HAUSA + W10, 0},
{"hawaiian", "haw", HAWAIIAN + W10, 0},
{"hebrew", "iw", HEBREW + W10, 0},
{"hindi", "hi", HINDI + W10, MARATHI - W4},
{"hn-in", "hi", HINDI + W10, MARATHI - W4},
{"hungarian", "hu", HUNGARIAN + W10, 0},
{"icelandic", "is", ICELANDIC + W10, FAROESE - W4},
{"igbo", "ig", IGBO + W10, 0},
{"indonesian", "id", INDONESIAN + W10, MALAY - W4},
{"interlingua", "ia", INTERLINGUA + W10, 0},
{"interlingue", "ie", INTERLINGUE + W10, 0},
// 1:2 iu-Cans ik-Latn
{"inuktitut", "iu,ik", INUKTITUT + W10, INUPIAK + W10}, // 1:2
{"inupiak", "ik,iu", INUPIAK + W10, INUKTITUT + W10}, // 1:2
{"ir-ie", "ga", IRISH + W10, 0}, // Irish
{"irish", "ga", IRISH + W10, 0},
{"italian", "it", ITALIAN + W10, 0},
{"ja-euc", "ja", JAPANESE + W10, 0}, // Japanese encoding
{"jan-jp", "ja", JAPANESE + W10, 0}, // Japanese encoding
{"japanese", "ja", JAPANESE + W10, 0},
{"javanese", "jw", JAVANESE + W10, 0},
{"kannada", "kn", KANNADA + W10, 0},
{"kashmiri", "ks", KASHMIRI + W10, 0},
{"kazakh", "kk", KAZAKH + W10, 0},
{"khasi", "kha", KHASI + W10, 0},
{"khmer", "km", KHMER + W10, 0},
{"kinyarwanda", "rw", KINYARWANDA + W10, 0},
{"klingon", "tlh", X_KLINGON + W10, 0},
{"korean", "ko", KOREAN + W10, 0},
{"kurdish", "ku", KURDISH + W10, 0},
{"kyrgyz", "ky", KYRGYZ + W10, 0},
{"laothian", "lo", LAOTHIAN + W10, 0},
{"latin", "la", LATIN + W10, 0},
{"latvian", "lv", LATVIAN + W10, 0},
{"limbu", "sit", LIMBU + W10, 0},
{"lingala", "ln", LINGALA + W10, 0},
{"lithuanian", "lt", LITHUANIAN + W10, 0},
{"luxembourgish", "lb", LUXEMBOURGISH + W10, 0},
{"macedonian", "mk", MACEDONIAN + W10, 0},
{"malagasy", "mg", MALAGASY + W10, 0},
{"malay", "ms", MALAY + W10, INDONESIAN - W4},
{"malayalam", "ml", MALAYALAM + W10, 0},
{"maltese", "mt", MALTESE + W10, 0},
{"manx", "gv", MANX + W10, 0},
{"maori", "mi", MAORI + W10, 0},
{"marathi", "mr", MARATHI + W10, HINDI - W4},
{"mauritian_creole", "mfe", MAURITIAN_CREOLE + W10, 0},
{"moldavian", "mo", ROMANIAN + W10, 0},
{"mongolian", "mn", MONGOLIAN + W10, 0},
{"montenegrin", "sr-me", MONTENEGRIN + W10, 0},
{"myanmar", "my", BURMESE + W10, 0}, // Myanmar
{"nauru", "na", NAURU + W10, 0},
{"ndebele", "nr", NDEBELE + W10, 0},
{"nepali", "ne", NEPALI + W10, 0},
{"no-bok", "no", NORWEGIAN + W10, NORWEGIAN_N - W4}, // Bokmaal
{"no-bokmaal", "no", NORWEGIAN + W10, NORWEGIAN_N - W4},
{"no-nb", "no", NORWEGIAN + W10, NORWEGIAN_N - W4}, // Bokmaal
{"no-no", "no", NORWEGIAN + W10, NORWEGIAN_N - W4},
{"no-nyn", "nn", NORWEGIAN_N + W10, NORWEGIAN - W4}, // Nynorsk
{"no-nynorsk", "nn", NORWEGIAN_N + W10, NORWEGIAN - W4},
{"norwegian", "no", NORWEGIAN + W10, NORWEGIAN_N - W4},
{"norwegian_n", "nn", NORWEGIAN_N + W10, NORWEGIAN - W4},
{"nyanja", "ny", NYANJA + W10, 0},
{"occitan", "oc", OCCITAN + W10, 0},
{"oriya", "or", ORIYA + W10, 0},
{"oromo", "om", OROMO + W10, 0},
{"parsi", "fa", PERSIAN + W10, 0},
{"pashto", "ps", PASHTO + W10, 0},
{"pedi", "nso", PEDI + W10, 0},
{"persian", "fa", PERSIAN + W10, 0},
{"polish", "pl", POLISH + W10, 0},
{"polska", "pl", POLISH + W10, 0},
{"polski", "pl", POLISH + W10, 0},
{"portugu", "pt", PORTUGUESE + W10, 0}, // Truncated at non-ASCII
{"portuguese", "pt", PORTUGUESE + W10, 0},
{"punjabi", "pa", PUNJABI + W10, 0},
{"quechua", "qu", QUECHUA + W10, 0},
{"rhaeto_romance", "rm", RHAETO_ROMANCE + W10, 0},
{"romanian", "ro", ROMANIAN + W10, 0},
{"rundi", "rn", RUNDI + W10, 0},
{"russian", "ru", RUSSIAN + W10, 0},
{"samoan", "sm", SAMOAN + W10, 0},
{"sango", "sg", SANGO + W10, 0},
{"sanskrit", "sa", SANSKRIT + W10, 0},
{"scots", "sco", SCOTS + W10, ENGLISH - W4},
{"scots_gaelic", "gd", SCOTS_GAELIC + W10, 0},
{"serbian", "sr", SERBIAN + W10, 0},
{"seselwa", "crs", SESELWA + W10, 0},
{"sesotho", "st", SESOTHO + W10, 0},
{"shift-jis", "ja", JAPANESE + W10, 0}, // Japanese encoding
{"shift-js", "ja", JAPANESE + W10, 0}, // Japanese encoding
{"shona", "sn", SHONA + W10, 0},
{"si-lk", "si", SINHALESE + W10, 0}, // 1:2 Sri Lanka, not ambiguous
{"si-si", "sl", SLOVENIAN + W10, 0}, // 1:2 Slovenia, not ambiguous
{"si-sl", "sl", SLOVENIAN + W10, 0}, // 1:2 Slovenia, not ambiguous
{"sindhi", "sd", SINDHI + W10, 0},
{"sinhalese", "si", SINHALESE + W10, 0},
{"siswant", "ss", SISWANT + W10, 0},
{"sit-np", "sit", LIMBU + W10, 0},
{"slovak", "sk", SLOVAK + W10, CZECH - W4},
{"slovenian", "sl", SLOVENIAN + W10, 0},
{"somali", "so", SOMALI + W10, 0},
{"spanish", "es", SPANISH + W10, 0},
{"sr-me", "sr-me", MONTENEGRIN + W10, 0}, // Montenegrin => Montenegrin
{"sundanese", "su", SUNDANESE + W10, 0},
{"suomi", "fi", FINNISH + W10, 0}, // Finnish
{"swahili", "sw", SWAHILI + W10, 0},
{"swedish", "sv", SWEDISH + W10, 0},
{"syriac", "syr", SYRIAC + W10, 0},
{"tagalog", "tl", TAGALOG + W10, 0},
{"tajik", "tg", TAJIK + W10, 0},
{"tamil", "ta", TAMIL + W10, 0},
{"tatar", "tt", TATAR + W10, 0},
{"tb-tb", "bo", TIBETAN + W10, DZONGKHA - W4}, // Tibet
{"tchinese", "zhT", CHINESE_T + W10, 0},
{"telugu", "te", TELUGU + W10, 0},
{"thai", "th", THAI + W10, 0},
{"tibetan", "bo", TIBETAN + W10, DZONGKHA - W4},
{"tigrinya", "ti", TIGRINYA + W10, 0},
{"tonga", "to", TONGA + W10, 0},
{"tsonga", "ts", TSONGA + W10, 0},
{"tswana", "tn", TSWANA + W10, 0},
{"tt-ru", "tt", TATAR + W10, 0},
{"tur-tr", "tr", TURKISH + W10, 0},
{"turkish", "tr", TURKISH + W10, 0},
{"turkmen", "tk", TURKMEN + W10, 0},
{"uighur", "ug", UIGHUR + W10, 0},
{"ukrainian", "uk", UKRAINIAN + W10, 0},
{"urdu", "ur", URDU + W10, 0},
{"uzbek", "uz", UZBEK + W10, 0},
{"venda", "ve", VENDA + W10, 0},
{"vietnam", "vi", VIETNAMESE + W10, 0},
{"vietnamese", "vi", VIETNAMESE + W10, 0},
{"volapuk", "vo", VOLAPUK + W10, 0},
{"welsh", "cy", WELSH + W10, 0},
{"wolof", "wo", WOLOF + W10, 0},
{"xhosa", "xh", XHOSA + W10, ZULU - W4},
{"yiddish", "yi", YIDDISH + W10, 0},
{"yoruba", "yo", YORUBA + W10, 0},
{"zh-classical", "zhT", CHINESE_T + W10, 0},
{"zh-cn", "zh", CHINESE + W10, 0},
{"zh-hans", "zh", CHINESE + W10, 0},
{"zh-hant", "zhT", CHINESE_T + W10, 0},
{"zh-hk", "zhT", CHINESE_T + W10, 0},
{"zh-min-nan", "zhT", CHINESE_T + W10, 0}, // Min Nan => ChineseT
{"zh-sg", "zhT", CHINESE_T + W10, 0},
{"zh-tw", "zhT", CHINESE_T + W10, 0},
{"zh-yue", "zh", CHINESE + W10, 0}, // Yue (Cantonese) => Chinese
{"zhuang", "za", ZHUANG + W10, 0},
{"zulu", "zu", ZULU + W10, XHOSA - W4},
};
// Table to look up lang= tags of two/three characters after truncate at hyphen
// In alphabetical order for binary search
static const int kCLDTable2Size = 257;
static const LangTagLookup kCLDLangTagsHintTable2[kCLDTable2Size] = {
{"aa", "aa", AFAR + W10, 0},
{"ab", "ab", ABKHAZIAN + W10, 0},
{"af", "af", AFRIKAANS + W10, 0},
{"ak", "ak", AKAN + W10, 0},
{"al", "sq", ALBANIAN + W10, 0}, // Albania
{"am", "am,hy", AMHARIC + W10, ARMENIAN + W10}, // 1:2 Amharic Armenian
{"ar", "ar", ARABIC + W10, 0},
{"ara", "ar", ARABIC + W10, 0},
{"arm", "hy", ARMENIAN + W10, 0}, // Armenia
{"arz", "ar", ARABIC + W10, 0}, // Egyptian Arabic
{"as", "as", ASSAMESE + W10, 0},
{"at", "de", GERMAN + W10, 0}, // Austria
{"au", "de", GERMAN + W10, 0}, // Austria
{"ay", "ay", AYMARA + W10, 0},
{"az", "az", AZERBAIJANI + W10, 0},
{"aze", "az", AZERBAIJANI + W10, 0},
{"ba", "ba,bs", BASHKIR + W10, BOSNIAN + W10}, // 1:2 Bashkir Bosnia
{"be", "be", BELARUSIAN + W10, 0},
{"bel", "be", BELARUSIAN + W10, 0},
{"bg", "bg", BULGARIAN + W10, 0},
{"bh", "bh", BIHARI + W10, HINDI - W4},
{"bi", "bi", BISLAMA + W10, 0},
{"big", "zhT", CHINESE_T + W10, 0}, // Big5 encoding
{"bm", "ms", MALAY + W10, INDONESIAN - W4}, // Bahasa Malaysia
{"bn", "bn", BENGALI + W10, 0},
{"bo", "bo", TIBETAN + W10, DZONGKHA - W4},
// 1:2 Breton, Brazil country code, both Latn .br TLD enough for pt to win
{"br", "br,pt", BRETON + W10, PORTUGUESE + W8}, // 1:2 Breton, Brazil
{"bs", "bs", BOSNIAN + W10, 0}, // Bosnian => Bosnian
{"ca", "ca", CATALAN + W10, 0},
{"cat", "ca", CATALAN + W10, 0},
{"ch", "de,fr", GERMAN + W10, FRENCH + W10}, // 1:2 Switzerland
{"chn", "zh", CHINESE + W10, 0},
{"chr", "chr", CHEROKEE + W10, 0},
{"ckb", "ku", KURDISH + W10, 0}, // Central Kurdish
{"cn", "zh,zhT", CHINESE + W6, CHINESE_T + W4}, // Ambiguous, so weaker.
// Offset by 2 so that TLD=tw or
// enc=big5 will put zhT ahead
{"co", "co", CORSICAN + W10, 0},
{"cro", "hr", CROATIAN + W10, 0}, // Croatia
{"crs", "crs", SESELWA + W10, 0},
{"cs", "cs", CZECH + W10, SLOVAK - W4},
{"ct", "ca", CATALAN + W10, 0},
{"cy", "cy", WELSH + W10, 0},
{"cym", "cy", WELSH + W10, 0},
{"cz", "cs", CZECH + W10, SLOVAK - W4},
{"da", "da", DANISH + W10, NORWEGIAN - W4},
{"dan", "da", DANISH + W10, NORWEGIAN - W4},
{"de", "de", GERMAN + W10, 0},
{"deu", "de", GERMAN + W10, 0},
{"div", "dv", DHIVEHI + W10, 0},
{"dk", "da", DANISH + W10, NORWEGIAN - W4}, // Denmark
{"dut", "nl", DUTCH + W10, 0}, // Dutch
{"dv", "dv", DHIVEHI + W10, 0},
{"dz", "dz", DZONGKHA + W10, TIBETAN - W4},
{"ee", "et", ESTONIAN + W10, 0}, // Estonia
{"eg", "ar", ARABIC + W10, 0}, // Egypt
{"el", "el", GREEK + W10, 0},
{"en", "en", ENGLISH + W4, 0},
{"eng", "en", ENGLISH + W4, 0},
{"eo", "eo", ESPERANTO + W10, 0},
{"er", "ur", URDU + W10, 0}, // "Erdu"
{"es", "es", SPANISH + W10, 0},
{"esp", "es", SPANISH + W10, 0},
{"est", "et", ESTONIAN + W10, 0},
{"et", "et", ESTONIAN + W10, 0},
{"eu", "eu", BASQUE + W10, 0},
{"fa", "fa", PERSIAN + W10, 0},
{"far", "fa", PERSIAN + W10, 0},
{"fi", "fi", FINNISH + W10, 0},
{"fil", "tl", TAGALOG + W10, 0}, // Philippines
{"fj", "fj", FIJIAN + W10, 0},
{"fo", "fo", FAROESE + W10, ICELANDIC - W4},
{"fr", "fr", FRENCH + W10, 0},
{"fra", "fr", FRENCH + W10, 0},
{"fre", "fr", FRENCH + W10, 0},
{"fy", "fy", FRISIAN + W10, 0},
{"ga", "ga,gl", IRISH + W10, GALICIAN + W10}, // 1:2 Irish, Galician
{"gae", "gd,ga", SCOTS_GAELIC + W10, IRISH + W10}, // 1:2 Gaelic, either
{"gal", "gl", GALICIAN + W10, 0},
{"gb", "zh", CHINESE + W10, 0}, // GB2312 encoding
{"gbk", "zh", CHINESE + W10, 0}, // GBK encoding
{"gd", "gd", SCOTS_GAELIC + W10, 0},
{"ge", "ka", GEORGIAN + W10, 0}, // Georgia
{"geo", "ka", GEORGIAN + W10, 0},
{"ger", "de", GERMAN + W10, 0},
{"gl", "gl", GALICIAN + W10, 0}, // Also Greenland; hard to confuse
{"gn", "gn", GUARANI + W10, 0},
{"gr", "el", GREEK + W10, 0}, // Greece
{"gu", "gu", GUJARATI + W10, 0},
{"gv", "gv", MANX + W10, 0},
{"ha", "ha", HAUSA + W10, 0},
{"hat", "ht", HAITIAN_CREOLE + W10, 0}, // Haiti
{"haw", "haw", HAWAIIAN + W10, 0},
{"hb", "iw", HEBREW + W10, 0},
{"he", "iw", HEBREW + W10, 0},
{"heb", "iw", HEBREW + W10, 0},
{"hi", "hi", HINDI + W10, MARATHI - W4},
{"hk", "zhT", CHINESE_T + W10, 0}, // Hong Kong
{"hr", "hr", CROATIAN + W10, 0},
{"ht", "ht", HAITIAN_CREOLE + W10, 0},
{"hu", "hu", HUNGARIAN + W10, 0},
{"hun", "hu", HUNGARIAN + W10, 0},
{"hy", "hy", ARMENIAN + W10, 0},
{"ia", "ia", INTERLINGUA + W10, 0},
{"ice", "is", ICELANDIC + W10, FAROESE - W4}, // Iceland
{"id", "id", INDONESIAN + W10, MALAY - W4},
{"ids", "id", INDONESIAN + W10, MALAY - W4},
{"ie", "ie", INTERLINGUE + W10, 0},
{"ig", "ig", IGBO + W10, 0},
// 1:2 iu-Cans ik-Latn
{"ik", "ik,iu", INUPIAK + W10, INUKTITUT + W10}, // 1:2
{"in", "id", INDONESIAN + W10, MALAY - W4},
{"ind", "id", INDONESIAN + W10, MALAY - W4}, // Indonesia
{"inu", "iu,ik", INUKTITUT + W10, INUPIAK + W10}, // 1:2
{"is", "is", ICELANDIC + W10, FAROESE - W4},
{"it", "it", ITALIAN + W10, 0},
{"ita", "it", ITALIAN + W10, 0},
{"iu", "iu,ik", INUKTITUT + W10, INUPIAK + W10}, // 1:2
{"iw", "iw", HEBREW + W10, 0},
{"ja", "ja", JAPANESE + W10, 0},
{"jp", "ja", JAPANESE + W10, 0}, // Japan
{"jpn", "ja", JAPANESE + W10, 0},
{"jv", "jw", JAVANESE + W10, 0},
{"jw", "jw", JAVANESE + W10, 0},
{"ka", "ka", GEORGIAN + W10, 0},
{"kc", "qu", QUECHUA + W10, 0}, // (K)Quechua
{"kg", "ky", KYRGYZ + W10, 0}, // Kyrgyzstan
{"kh", "km", KHMER + W10, 0}, // Country code Khmer (Cambodia)
{"kha", "kha", KHASI + W10, 0},
{"kk", "kk", KAZAKH + W10, 0}, // Kazakh
{"kl", "kl", GREENLANDIC + W10, 0},
{"km", "km", KHMER + W10, 0},
{"kn", "kn", KANNADA + W10, 0},
{"ko", "ko", KOREAN + W10, 0},
{"kor", "ko", KOREAN + W10, 0},
{"kr", "ko", KOREAN + W10, 0}, // Country code Korea
{"ks", "ks", KASHMIRI + W10, 0},
{"ksc", "ko", KOREAN + W10, 0}, // KSC encoding
{"ku", "ku", KURDISH + W10, 0},
{"ky", "ky", KYRGYZ + W10, 0},
{"kz", "kk", KAZAKH + W10, 0}, // Kazakhstan
{"la", "la", LATIN + W10, 0},
{"lao", "lo", LAOTHIAN + W10, 0}, // Laos
{"lb", "lb", LUXEMBOURGISH + W10, 0},
{"lg", "lg", GANDA + W10, 0},
{"lit", "lt", LITHUANIAN + W10, 0},
{"ln", "ln", LINGALA + W10, 0},
{"lo", "lo", LAOTHIAN + W10, 0},
{"lt", "lt", LITHUANIAN + W10, 0},
{"ltu", "lt", LITHUANIAN + W10, 0},
{"lv", "lv", LATVIAN + W10, 0},
{"mfe", "mfe", MAURITIAN_CREOLE + W10, 0},
{"mg", "mg", MALAGASY + W10, 0},
{"mi", "mi", MAORI + W10, 0},
{"mk", "mk", MACEDONIAN + W10, 0},
{"ml", "ml", MALAYALAM + W10, 0},
{"mn", "mn", MONGOLIAN + W10, 0},
{"mo", "mo", ROMANIAN + W10, 0},
{"mon", "mn", MONGOLIAN + W10, 0}, // Mongolian
{"mr", "mr", MARATHI + W10, HINDI - W4},
{"ms", "ms", MALAY + W10, INDONESIAN - W4},
{"mt", "mt", MALTESE + W10, 0},
{"mx", "es", SPANISH + W10, 0}, // Mexico
{"my", "my,ms", BURMESE + W10, MALAY + W10}, // Myanmar, Malaysia
{"na", "na", NAURU + W10, 0},
{"nb", "no", NORWEGIAN + W10, NORWEGIAN_N - W4},
{"ne", "ne", NEPALI + W10, 0},
{"nl", "nl", DUTCH + W10, 0},
{"nn", "nn", NORWEGIAN_N + W10, NORWEGIAN - W4},
{"no", "no", NORWEGIAN + W10, NORWEGIAN_N - W4},
{"nr", "nr", NDEBELE + W10, 0},
{"nso", "nso", PEDI + W10, 0},
{"ny", "ny", NYANJA + W10, 0},
{"oc", "oc", OCCITAN + W10, 0},
{"om", "om", OROMO + W10, 0},
{"or", "or", ORIYA + W10, 0},
{"pa", "pa,ps", PUNJABI + W10, PASHTO + W10}, // 1:2 pa-Guru ps-Arab
{"per", "fa", PERSIAN + W10, 0},
{"ph", "tl", TAGALOG + W10, 0}, // Philippines
{"pk", "ur", URDU + W10, 0}, // Pakistan
{"pl", "pl", POLISH + W10, 0},
{"pnb", "pa", PUNJABI + W10, 0}, // Western Punjabi
{"pol", "pl", POLISH + W10, 0},
{"por", "pt", PORTUGUESE + W10, 0},
{"ps", "ps", PASHTO + W10, 0},
{"pt", "pt", PORTUGUESE + W10, 0},
{"ptg", "pt", PORTUGUESE + W10, 0},
{"qc", "fr", FRENCH + W10, 0}, // Quebec "country" code
{"qu", "qu", QUECHUA + W10, 0},
{"rm", "rm", RHAETO_ROMANCE + W10, 0},
{"rn", "rn", RUNDI + W10, 0},
{"ro", "ro", ROMANIAN + W10, 0},
{"rs", "sr", SERBIAN + W10, 0}, // Serbia country code
{"ru", "ru", RUSSIAN + W10, 0},
{"rus", "ru", RUSSIAN + W10, 0},
{"rw", "rw", KINYARWANDA + W10, 0},
{"sa", "sa", SANSKRIT + W10, 0},
{"sco", "sco", SCOTS + W10, ENGLISH - W4},
{"sd", "sd", SINDHI + W10, 0},
{"se", "sv", SWEDISH + W10, 0},
{"sg", "sg", SANGO + W10, 0},
{"si", "si,sl", SINHALESE + W10, SLOVENIAN + W10}, // 1:2 Sinhalese, Slovinia
{"sk", "sk", SLOVAK + W10, CZECH - W4},
{"sl", "sl", SLOVENIAN + W10, 0},
{"slo", "sl", SLOVENIAN + W10, 0},
{"sm", "sm", SAMOAN + W10, 0},
{"sn", "sn", SHONA + W10, 0},
{"so", "so", SOMALI + W10, 0},
{"sp", "es", SPANISH + W10, 0},
{"sq", "sq", ALBANIAN + W10, 0},
{"sr", "sr", SERBIAN + W10, 0},
{"srb", "sr", SERBIAN + W10, 0},
{"srl", "sr", SERBIAN + W10, 0}, // Serbian Latin
{"srp", "sr", SERBIAN + W10, 0},
{"ss", "ss", SISWANT + W10, 0},
{"st", "st", SESOTHO + W10, 0},
{"su", "su", SUNDANESE + W10, 0},
{"sv", "sv", SWEDISH + W10, 0},
{"sve", "sv", SWEDISH + W10, 0},
{"sw", "sw", SWAHILI + W10, 0},
{"swe", "sv", SWEDISH + W10, 0},
{"sy", "syr", SYRIAC + W10, 0},
{"syr", "syr", SYRIAC + W10, 0},
{"ta", "ta", TAMIL + W10, 0},
{"te", "te", TELUGU + W10, 0},
{"tg", "tg", TAJIK + W10, 0},
{"th", "th", THAI + W10, 0},
{"ti", "ti,bo", TIGRINYA + W10, TIBETAN + W10}, // 1:2 Tigrinya, Tibet
{"tj", "tg", TAJIK + W10, 0}, // Tajikistan
{"tk", "tk", TURKMEN + W10, 0},
{"tl", "tl", TAGALOG + W10, 0},
{"tlh", "tlh", X_KLINGON + W10, 0},
{"tn", "tn", TSWANA + W10, 0},
{"to", "to", TONGA + W10, 0},
{"tr", "tr", TURKISH + W10, 0},
{"ts", "ts", TSONGA + W10, 0},
{"tt", "tt", TATAR + W10, 0},
{"tw", "ak,zhT", AKAN + W10, CHINESE_T + W10}, // 1:2 Twi => Akan, Taiwan
{"twi", "ak", AKAN + W10, 0}, // Twi => Akan
{"ua", "uk", UKRAINIAN + W10, 0}, // Ukraine
{"ug", "ug", UIGHUR + W10, 0},
{"uk", "uk", UKRAINIAN + W10, 0},
{"ur", "ur", URDU + W10, 0},
{"uz", "uz", UZBEK + W10, 0},
{"va", "ca", CATALAN + W10, 0}, // Valencia => Catalan
{"val", "ca", CATALAN + W10, 0}, // Valencia => Catalan
{"ve", "ve", VENDA + W10, 0},
{"vi", "vi", VIETNAMESE + W10, 0},
{"vie", "vi", VIETNAMESE + W10, 0},
{"vn", "vi", VIETNAMESE + W10, 0},
{"vo", "vo", VOLAPUK + W10, 0},
{"wo", "wo", WOLOF + W10, 0},
{"xh", "xh", XHOSA + W10, ZULU - W4},
{"xho", "xh", XHOSA + W10, ZULU - W4},
{"yi", "yi", YIDDISH + W10, 0},
{"yo", "yo", YORUBA + W10, 0},
{"za", "za", ZHUANG + W10, 0},
{"zh", "zh", CHINESE + W10, 0},
{"zht", "zhT", CHINESE_T + W10, 0},
{"zu", "zu", ZULU + W10, XHOSA - W4},
};
// Possibly map to tl:
// -LangTags tl-Latn /7val.com/ ,bcl 2 Central Bicolano
// -LangTags tl-Latn /7val.com/ ,ceb 6 Cebuano
// -LangTags tl-Latn /7val.com/ ,war 1 Waray
// Table to look up country TLD (no general TLD)
// In alphabetical order for binary search
static const int kCLDTable3Size = 181;
static const TLDLookup kCLDTLDHintTable[kCLDTable3Size] = {
{"ac", JAPANESE + W2, 0},
{"ad", CATALAN + W4, 0},
{"ae", ARABIC + W4, 0},
{"af", PASHTO + W4, PERSIAN + W4},
{"ag", GERMAN + W2, 0}, // meager
// {"ai", 0, 0}, // meager
{"al", ALBANIAN + W4, 0},
{"am", ARMENIAN + W4, 0},
{"an", DUTCH + W4, 0}, // meager
{"ao", PORTUGUESE + W4, 0},
// {"aq", 0, 0}, // meager
{"ar", SPANISH + W4, 0},
// {"as", 0, 0},
{"at", GERMAN + W4, 0},
{"au", ENGLISH + W2, 0},
{"aw", DUTCH + W4, 0},
{"ax", SWEDISH + W4, 0},
{"az", AZERBAIJANI + W4, 0},
{"ba", BOSNIAN + W8, CROATIAN - W4},
// {"bb", 0, 0},
{"bd", BENGALI + W4, 0},
{"be", DUTCH + W4, FRENCH + W4},
{"bf", FRENCH + W4, 0},
{"bg", BULGARIAN + W4, 0},
{"bh", ARABIC + W4, 0},
{"bi", RUNDI + W4, FRENCH + W4},
{"bj", FRENCH + W4, 0},
{"bm", ENGLISH + W2, 0},
{"bn", MALAY + W4, INDONESIAN - W4},
{"bo", SPANISH + W4, AYMARA + W2}, // and GUARANI QUECHUA
{"br", PORTUGUESE + W4, 0},
// {"bs", 0, 0},
{"bt", DZONGKHA + W10, TIBETAN - W10}, // Strong presumption of Dzongha
{"bw", TSWANA + W4, 0},
{"by", BELARUSIAN + W4, 0},
// {"bz", 0, 0},
{"ca", FRENCH + W4, ENGLISH + W2},
{"cat", CATALAN + W4, 0},
{"cc", 0, 0},
{"cd", FRENCH + W4, 0},
{"cf", FRENCH + W4, 0},
{"cg", FRENCH + W4, 0},
{"ch", GERMAN + W4, FRENCH + W4},
{"ci", FRENCH + W4, 0},
// {"ck", 0, 0},
{"cl", SPANISH + W4, 0},
{"cm", FRENCH + W4, 0},
{"cn", CHINESE + W4, 0},
{"co", SPANISH + W4, 0},
{"cr", SPANISH + W4, 0},
{"cu", SPANISH + W4, 0},
{"cv", PORTUGUESE + W4, 0},
// {"cx", 0, 0},
{"cy", GREEK + W4, TURKISH + W4},
{"cz", CZECH + W4, SLOVAK - W4},
{"de", GERMAN + W4, 0},
{"dj", 0, 0},
{"dk", DANISH + W4, NORWEGIAN - W4},
{"dm", 0, 0},
{"do", SPANISH + W4, 0},
{"dz", FRENCH + W4, ARABIC + W4},
{"ec", SPANISH + W4, 0},
{"ee", ESTONIAN + W4, 0},
{"eg", ARABIC + W4, 0},
{"er", AFAR + W4, 0},
{"es", SPANISH + W4, 0},
{"et", AMHARIC + W4, AFAR + W4},
{"fi", FINNISH + W4, 0},
{"fj", FIJIAN + W4, 0},
// {"fk", 0, 0},
// {"fm", 0, 0},
{"fo", FAROESE + W4, ICELANDIC - W4},
{"fr", FRENCH + W4, 0},
{"ga", FRENCH + W4, 0},
{"gd", 0, 0},
{"ge", GEORGIAN + W4, 0},
{"gf", FRENCH + W4, 0},
// {"gg", 0, 0},
// {"gh", 0, 0},
// {"gi", 0, 0},
{"gl", GREENLANDIC + W4, DANISH + W4},
// {"gm", 0, 0},
{"gn", FRENCH + W4, 0},
// {"gp", 0, 0},
// {"gq", 0, 0},
{"gr", GREEK + W4, 0},
// {"gs", 0, 0},
{"gt", SPANISH + W4, 0},
// {"gu", 0, 0},
// {"gy", 0, 0},
{"hk", CHINESE_T + W4, 0},
// {"hm", 0, 0},
{"hn", SPANISH + W4, 0},
{"hr", CROATIAN + W8, BOSNIAN - W4},
{"ht", HAITIAN_CREOLE + W4, FRENCH + W4},
{"hu", HUNGARIAN + W4, 0},
{"id", INDONESIAN + W4, MALAY - W4},
{"ie", IRISH + W4, 0},
{"il", HEBREW + W4, 0},
{"im", MANX + W4, 0},
// {"in", 0, 0},
// {"io", 0, 0},
{"iq", ARABIC + W4, 0},
{"ir", PERSIAN + W4, 0},
{"is", ICELANDIC + W4, FAROESE - W4},
{"it", ITALIAN + W4, 0},
// {"je", 0, 0},
// {"jm", 0, 0},
{"jo", ARABIC + W4, 0},
{"jp", JAPANESE + W4, 0},
// {"ke", 0, 0},
{"kg", KYRGYZ + W4, 0},
{"kh", KHMER + W4, 0},
// {"ki", 0, 0},
{"km", FRENCH + W4, 0},
// {"kn", 0, 0},
{"kp", KOREAN + W4, 0},
{"kr", KOREAN + W4, 0},
{"kw", ARABIC + W4, 0},
// {"ky", 0, 0},
{"kz", KAZAKH + W4, 0},
{"la", LAOTHIAN + W4, 0},
{"lb", ARABIC + W4, FRENCH + W4},
// {"lc", 0, 0},
{"li", GERMAN + W4, 0},
{"lk", SINHALESE + W4, 0},
// {"lr", 0, 0},
{"ls", SESOTHO + W4, 0},
{"lt", LITHUANIAN + W4, 0},
{"lu", LUXEMBOURGISH + W4},
{"lv", LATVIAN + W4, 0},
{"ly", ARABIC + W4, 0},
{"ma", FRENCH + W4, 0},
{"mc", FRENCH + W4, 0},
{"md", ROMANIAN + W4, 0},
{"me", MONTENEGRIN + W8, SERBIAN - W4},
{"mg", FRENCH + W4, 0},
{"mk", MACEDONIAN + W4, 0},
{"ml", FRENCH + W4, 0},
{"mm", BURMESE + W4, 0},
{"mn", MONGOLIAN + W4, 0},
{"mo", CHINESE_T + W4, PORTUGUESE + W4},
// {"mp", 0, 0},
{"mq", FRENCH + W4, 0},
{"mr", FRENCH + W4, ARABIC + W4},
// {"ms", 0, 0},
{"mt", MALTESE + W4, 0},
// {"mu", 0, 0},
{"mv", DHIVEHI + W4, 0},
// {"mw", 0, 0},
{"mx", SPANISH + W4, 0},
{"my", MALAY + W4, INDONESIAN - W4},
{"mz", PORTUGUESE + W4, 0},
{"na", 0, 0}, // Namibia
{"nc", FRENCH + W4, 0},
{"ne", FRENCH + W4, 0},
{"nf", FRENCH + W4, 0},
// {"ng", 0, 0},
{"ni", SPANISH + W4, 0},
{"nl", DUTCH + W4, 0},
{"no", NORWEGIAN + W4, NORWEGIAN_N + W2},
{"np", NEPALI + W4, 0},
{"nr", NAURU + W4, 0},
{"nu", SWEDISH + W4, 0},
{"nz", MAORI + W4, ENGLISH + W2},
{"om", ARABIC + W4, 0},
{"pa", SPANISH + W4, 0},
{"pe", SPANISH + W4, QUECHUA + W2}, // also AYMARA
{"pf", FRENCH + W4, 0},
// {"pg", 0, 0},
{"ph", TAGALOG + W4, 0},
{"pk", URDU + W4, 0},
{"pl", POLISH + W4, 0},
// {"pn", 0, 0},
{"pr", SPANISH + W4, 0},
{"ps", ARABIC + W4, 0},
{"pt", PORTUGUESE + W4, 0},
{"py", SPANISH + W4, GUARANI + W2},
{"qa", ARABIC + W4, 0},
{"re", FRENCH + W4, 0},
{"ro", ROMANIAN + W4, 0},
{"rs", SERBIAN + W8, MONTENEGRIN - W4},
{"ru", RUSSIAN + W4, 0},
{"rw", KINYARWANDA + W4, FRENCH + W2},
{"sa", ARABIC + W4, 0},
// {"sb", 0, 0},
{"sc", SESELWA + W4, 0},
{"sd", ARABIC + W4, 0},
{"se", SWEDISH + W4, 0},
// {"sg", 0, 0},
// {"sh", 0, 0},
{"si", SLOVENIAN + W4, 0},
{"sk", SLOVAK + W4, CZECH - W4},
// {"sl", 0, 0},
{"sm", ITALIAN + W4, 0},
{"sn", FRENCH + W4, 0},
// {"sr", 0, 0},
{"ss", ARABIC + W4, 0}, // Presumed South Sudan TLD. dsites 2011.07.07
// {"st", 0, 0},
{"su", RUSSIAN + W4, 0},
{"sv", SPANISH + W4, 0},
{"sy", ARABIC + W4, 0},
// {"sz", 0, 0},
// {"tc", 0, 0},
{"td", FRENCH + W4, 0},
// {"tf", 0, 0},
{"tg", FRENCH + W4, 0},
{"th", THAI + W4, 0},
// Tibet has no country code (see .cn)
{"tj", TAJIK + W4, 0},
// {"tk", 0, 0},
// {"tl", 0, 0},
{"tm", TURKISH + W4, 0},
{"tn", FRENCH + W4, ARABIC + W4},
// {"to", 0, 0},
{"tp", JAPANESE + W4, 0},
{"tr", TURKISH + W4, 0},
// {"tt", 0, 0},
// {"tv", 0, 0},
{"tw", CHINESE_T + W4, 0},
{"tz", SWAHILI + W4, AKAN + W4},
{"ua", UKRAINIAN + W4, 0},
{"ug", GANDA + W4, 0},
{"uk", ENGLISH + W2, 0},
{"us", ENGLISH + W2, 0},
{"uy", SPANISH + W4, 0},
{"uz", UZBEK + W4, 0},
{"va", ITALIAN + W4, LATIN + W2},
// {"vc", 0, 0},
{"ve", SPANISH + W4, 0},
// {"vg", 0, 0},
// {"vi", 0, 0},
{"vn", VIETNAMESE + W4, 0},
// {"vu", 0, 0},
{"wf", FRENCH + W4, 0},
// {"ws", 0, 0},
{"ye", ARABIC + W4, 0},
{"za", AFRIKAANS + W4, 0},
// {"zm", 0, 0},
// {"zw", 0, 0},
};
#undef W2
#undef W4
#undef W6
#undef W8
#undef W10
#undef W12
inline void SetCLDPriorWeight(int w, OneCLDLangPrior* olp) {
*olp = (*olp & 0x3ff) + (w << 10);
}
inline void SetCLDPriorLang(Language lang, OneCLDLangPrior* olp) {
*olp = (*olp & ~0x3ff) + lang;
}
OneCLDLangPrior PackCLDPriorLangWeight(Language lang, int w) {
return (w << 10) + lang;
}
inline int MaxInt(int a, int b) {
return (a >= b) ? a : b;
}
// Merge in another language prior, taking max if already there
void MergeCLDLangPriorsMax(OneCLDLangPrior olp, CLDLangPriors* lps) {
if (olp == 0) {return;}
Language target_lang = GetCLDPriorLang(olp);
for (int i = 0; i < lps->n; ++i) {
if (GetCLDPriorLang(lps->prior[i]) == target_lang) {
int new_weight = MaxInt(GetCLDPriorWeight(lps->prior[i]),
GetCLDPriorWeight(olp));
SetCLDPriorWeight(new_weight, &lps->prior[i]);
return;
}
}
// Not found; add it if room
if (lps->n >= kMaxOneCLDLangPrior) {return;}
lps->prior[lps->n++] = olp;
}
// Merge in another language prior, boosting 10x if already there
void MergeCLDLangPriorsBoost(OneCLDLangPrior olp, CLDLangPriors* lps) {
if (olp == 0) {return;}
Language target_lang = GetCLDPriorLang(olp);
for (int i = 0; i < lps->n; ++i) {
if (GetCLDPriorLang(lps->prior[i]) == target_lang) {
int new_weight = GetCLDPriorWeight(lps->prior[i]) + 2;
SetCLDPriorWeight(new_weight, &lps->prior[i]);
return;
}
}
// Not found; add it if room
if (lps->n >= kMaxOneCLDLangPrior) {return;}
lps->prior[lps->n++] = olp;
}
// Trim language priors to no more than max_entries, keeping largest abs weights
void TrimCLDLangPriors(int max_entries, CLDLangPriors* lps) {
if (lps->n <= max_entries) {return;}
// Insertion sort in-place by abs(weight)
for (int i = 0; i < lps->n; ++i) {
OneCLDLangPrior temp_olp = lps->prior[i];
int w = abs(GetCLDPriorWeight(temp_olp));
int kk = i;
for (; kk > 0; --kk) {
if (abs(GetCLDPriorWeight(lps->prior[kk - 1])) < w) {
// Move down and continue
lps->prior[kk] = lps->prior[kk - 1];
} else {
// abs(weight[kk - 1]) >= w, time to stop
break;
}
}
lps->prior[kk] = temp_olp;
}
lps->n = max_entries;
}
int CountCommas(const string& langtags) {
int commas = 0;
for (int i = 0; i < static_cast<int>(langtags.size()); ++i) {