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  28  <H1><A NAME="5">5 Localizing error messages</A></H1>
  29  <P> The library has a quite extensive set of error messages to give
  30   hints and catch erroneous input to many of the controlling methods and
  31   also do sanity check on the data to be plotted.</P>
  32  <P> All error messages are collected in resource files which are
  33   localized to a specific language. All resource files are located under
  34   the &quot;lang/&quot; directory in the JpGraph installation directory. The
  35   deafult locale to be used is defined in the configuration file with the
  36   setting DEFAULT_ERR_LOCALE in the distribution this is set to English
  37   locale.</P>
  38  <P> The chosen locale is specified in the beginning of the script with a
  39   call to the static method<I> JpGraphError::SetErrLocale()</I>. The
  40   argument to this method is the ISO naming of the country/language to be
  41   selected. For example to enable the special production locale the
  42   following line should be added in the beginning of the script</P>
  43  <PRE>
  44  JpGraphError::SetErrLocale('prod');
  45  </PRE>
  46   If an unknown or unsupported locale is given the error message will
  47   default to English.<HR NOSHADE>
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