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Merged
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Feb 11, 2025
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Added Luxembourgish language support #1

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113 changes: 57 additions & 56 deletions README.md
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Expand Up @@ -29,69 +29,70 @@ This is a refined and re-implemented version of the archived plugin for ElasticS
## About this library

The library uses 3-gram character and a Bayesian filter with various normalizations and feature sampling.
The precision is over **99%** for **53** languages.
The precision is over **99%** for **54** languages.

See the following PR description to read about the benchmaks done by @yanirs : https://github.com/jprante/elasticsearch-langdetect/pull/69

### Supported ISO 639-1 codes

The following is a list of ISO 639-1 languages code recognized:

| Code | Description |
|--------|--------------------------------------------------|
| af | Afrikaans |
| ar | Arabic |
| bg | Bulgarian |
| bn | Bengali |
| cs | Czech |
| da | Danish |
| de | German |
| el | Greek |
| en | English |
| es | Spanish |
| et | Estonian |
| fa | Farsi |
| fi | Finnish |
| fr | French |
| gu | Gujarati |
| he | Hebrew |
| hi | Hindi |
| hr | Croatian |
| hu | Hungarian |
| id | Indonesian |
| it | Italian |
| ja | Japanese |
| kn | Kannada |
| ko | Korean |
| lt | Lithuanian |
| lv | Latvian |
| mk | Macedonian |
| ml | Malayalam |
| mr | Marathi |
| ne | Nepali |
| nl | Dutch |
| no | Norwegian |
| pa | Eastern Punjabi |
| pl | Polish |
| pt | Portuguese |
| ro | Romanian |
| ru | Russian |
| sk | Slovak |
| sl | Slovene |
| so | Somali |
| sq | Albanian |
| sv | Swedish |
| sw | Swahili |
| ta | Tamil |
| te | Telugu |
| th | Thai |
| tl | Tagalog |
| tr | Turkish |
| uk | Ukrainian |
| ur | Urdu |
| vi | Vietnamese |
| zh-cn | Chinese |
| zh-tw | Traditional Chinese (Taiwan, Hongkong and Macau) |
| Code | Description |
|-------|--------------------------------------------------|
| af | Afrikaans |
| ar | Arabic |
| bg | Bulgarian |
| bn | Bengali |
| cs | Czech |
| da | Danish |
| de | German |
| el | Greek |
| en | English |
| es | Spanish |
| et | Estonian |
| fa | Farsi |
| fi | Finnish |
| fr | French |
| gu | Gujarati |
| he | Hebrew |
| hi | Hindi |
| hr | Croatian |
| hu | Hungarian |
| id | Indonesian |
| it | Italian |
| ja | Japanese |
| kn | Kannada |
| ko | Korean |
| lb | Luxembourgish |
| lt | Lithuanian |
| lv | Latvian |
| mk | Macedonian |
| ml | Malayalam |
| mr | Marathi |
| ne | Nepali |
| nl | Dutch |
| no | Norwegian |
| pa | Eastern Punjabi |
| pl | Polish |
| pt | Portuguese |
| ro | Romanian |
| ru | Russian |
| sk | Slovak |
| sl | Slovene |
| so | Somali |
| sq | Albanian |
| sv | Swedish |
| sw | Swahili |
| ta | Tamil |
| te | Telugu |
| th | Thai |
| tl | Tagalog |
| tr | Turkish |
| uk | Ukrainian |
| ur | Urdu |
| vi | Vietnamese |
| zh-cn | Chinese |
| zh-tw | Traditional Chinese (Taiwan, Hongkong and Macau) |

### Quick detection of CJK languages

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2 changes: 1 addition & 1 deletion src/main/java/io/github/azagniotov/language/LanguageDetectionSettings.java
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Expand Up @@ -9,7 +9,7 @@
public class LanguageDetectionSettings {

private static final String ALL_SUPPORTED_ISO_CODES_639_1 =
"af,ar,bg,bn,ca,cs,da,de,el,en,es,et,fa,fi,fr,gu,he,hi,hr,hu,id,it,ja,kn,ko,lt,lv,mk,ml,mr,ne,nl,no,pa,pl,pt,"
"af,ar,bg,bn,ca,cs,da,de,el,en,es,et,fa,fi,fr,gu,he,hi,hr,hu,id,it,ja,kn,ko,lb,lt,lv,mk,ml,mr,ne,nl,no,pa,pl,pt,"
+ "ro,ru,si,sk,sl,so,sq,sv,sw,ta,te,th,tl,tr,uk,ur,vi,zh-cn,zh-tw";

static final LanguageDetectionSettings DEFAULT_SETTINGS_ALL_LANGUAGES =
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1 change: 1 addition & 0 deletions src/main/resources/langdetect/lb
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1 change: 1 addition & 0 deletions src/main/resources/langdetect/merged-average/lb
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1 change: 1 addition & 0 deletions src/main/resources/langdetect/short-text/lb
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19 changes: 19 additions & 0 deletions src/test/java/io/github/azagniotov/language/LanguageDetectorTest.java
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Expand Up @@ -213,4 +213,23 @@ public final void languageDetectorRespondsWithUndeterminedLanguage() throws Exce
assertEquals("und", detector.detectAll("1234567").get(0).getIsoCode639_1());
assertEquals("und", detector.detectAll("한국어").get(0).getIsoCode639_1());
}

@Test
public final void languageDetectorTestLuxembourgish() throws Exception {
final LanguageDetectionSettings supportedLanguages =
LanguageDetectionSettings.fromIsoCodes639_1("de,lb").build();
final LanguageDetectorFactory factory = new LanguageDetectorFactory(supportedLanguages);
final LanguageDetector detector =
new LanguageDetector(factory.getSupportedIsoCodes639_1(), factory.getLanguageCorporaProbabilities());

assertEquals(
"lb", detector.detectAll("Ech léiere Lëtzebuergesch").get(0).getIsoCode639_1());
assertEquals("de", detector.detectAll("Ich lerne Deutsch").get(0).getIsoCode639_1());

assertEquals(
"lb",
detector.detectAll("Schwätzt wannechgelift méi lues").get(0).getIsoCode639_1());
assertEquals(
"de", detector.detectAll("Bitte sprechen Sie langsamer").get(0).getIsoCode639_1());
}
}