Package org.languagetool.language

Class LanguageIdentifier

java.lang.Object

org.languagetool.language.LanguageIdentifier

public class LanguageIdentifier
extends Object

Identify the language of a text. Note that some languages might never be detected because they are close to another language. Language variants like en-US or en-GB are not detected, the result will be en for those. By default, only the first 1000 characters of a text are considered. Email signatures that use \n-- \n as a delimiter are ignored.

Since:

2.9

Constructor Summary

Constructors

Constructor	Description
LanguageIdentifier()
LanguageIdentifier(int maxLength)

Method Summary

Modifier and Type	Method	Description
@Nullable Language	detectLanguage(String text)
@Nullable DetectedLanguage	detectLanguage(String text, List<String> noopLangsTmp, List<String> preferredLangsTmp)
void	enableFasttext(File fasttextBinary, File fasttextModel)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

LanguageIdentifier

public LanguageIdentifier()

LanguageIdentifier

public LanguageIdentifier(int maxLength)

Parameters:

maxLength - the maximum number of characters that will be considered - can help with performance. Don't use values below 100, as this would decrease accuracy.

Throws:

IllegalArgumentException - if maxLength is less than 10

Since:

4.2

Method Details

enableFasttext

public void enableFasttext(File fasttextBinary,
 File fasttextModel)

detectLanguage

@Nullable
public @Nullable Language detectLanguage(String text)

Returns:

language or null if language could not be identified

detectLanguage

@Nullable
public @Nullable DetectedLanguage detectLanguage(String text,
 List<String> noopLangsTmp,
 List<String> preferredLangsTmp)

Parameters:

noopLangsTmp - list of codes that are detected but will lead to the NoopLanguage that has no rules

Returns:

language or null if language could not be identified

Since:

4.4 (new parameter noopLangs, changed return type to DetectedLanguage)