com.itextpdf.text.zugferd.checkers.basic.LanguageCode Maven / Gradle / Ivy
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*
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package com.itextpdf.text.zugferd.checkers.basic;
import com.itextpdf.text.zugferd.checkers.CodeValidation;
/**
* Class that can be used to check if a language code is well-formed.
* IMPORTANT: this doesn't check if the code is valid in the sense that
* it doesn't check the code against a list of languages.
*/
public class LanguageCode extends CodeValidation {
/**
* The code list provided with the ZUGFeRD standard only lists four codes:
* de, fr, en, and es. Obviously, there are more codes available (in ISO 639-1).
* We won't check the presence of a code in ISO 639-1, but we'll check if the
* code consists of two letters and if it's lowercase.
* @param code the code to be tested
* @return true if the code has the correct format
*/
public boolean isValid(String code) {
return isLowercase(code, 2);
}
}