[xsl] Patterns usage in XSLT template rules

I run into a compilation error while using this stylesheet..

  <xsl:template match="(/)">
    <o1:NeverPrints/>
  </xsl:template>

The same repeats if the pattern were (/*), or, (child::*)
My question is:Why are these considered as invalid Patterns in XSLT ?

rgds,
Menon

It says invalid XSLT pattern.  XTSE0340: XSLT Pattern syntax error at
char 0 in {(/}:
    Unexpected token in pattern, found "("

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