package com.jclark.xsl.conv;

import java.util.Hashtable;

class AlphabetFormatTokenHandler implements FormatTokenHandler {
  private Hashtable langTable = new Hashtable();
  private NumberFormat defaultFormat;
  AlphabetFormatTokenHandler(NumberFormat defaultFormat) {
    this.defaultFormat = defaultFormat;
  }
  void setLangNumberFormat(String lang, NumberFormat format) {
    langTable.put(lang, format);
  }
  public NumberFormat getFormat(String lang, String letterValue) {
    if (lang == null)
      return defaultFormat;
    NumberFormat format = (NumberFormat)langTable.get(lang.toLowerCase());
    if (format != null)
      return format;
    int i = lang.lastIndexOf('-');
    if (i > 1)
      return getFormat(lang.substring(0, i), letterValue);
    return defaultFormat;
  }
}