pare two string objects, in three phases:
 (a) ignoring accents and case
 (b) if still equal, ignoring case
 (c) if still equal, taking case into account
<P>
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<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../com/icl/saxon/sort/Comparer.html#compare(java.lang.Object, java.lang.Object)">compare</A></CODE> in class <CODE><A HREF="../../../../com/icl/saxon/sort/Comparer.html" title="class in com.icl.saxon.sort">Comparer</A></CODE></DL>
</DD>
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<DT><B>Returns:</B><DD><0 if a<b, 0 if a