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<TD><B><A HREF="../../../../../org/apache/fop/complexscripts/fonts/class-use/Positionable.html#org.apache.fop.fonts"><B>Positionable</B></A></B>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Optional interface which indicates that glyph positioning is supported and, if supported,
 can perform positioning.</TD>
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<TD><B><A HREF="../../../../../org/apache/fop/complexscripts/fonts/class-use/Substitutab