File: Lang.java

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lib-xt-java 0.19990725-1
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package com.jclark.xsl.tr;

import java.util.Locale;

/* Convert the value of an xml:lang attribute to a Locale. */

class Lang {
  /* lang may be null. */
  static Locale getLocale(String lang) {
    // FIXME handle non ISO 639 codes
    if (lang == null || lang.length() < 2 || lang.charAt(1) == '-')
      return null;
    return new Locale(lang.substring(0, 2), getCountryCode(lang));
  }

  static private String getCountryCode(String lang) {
    int len = lang.length();
    if (len < 5
	|| (len > 5 && lang.charAt(5) != '-')
	|| lang.charAt(4) == '-')
      return "";
    return lang.substring(3, 5);
  }
	
}