Testing numbers

<Float attribute="Match" context="#stay" />
<Float>
3.42
<Float>

<HlCChar attribute="Match" context="#stay" />
<HlCChar>
'c'
<HlCChar>

<HlCHex attribute="Match" context="#stay" />
<HlCHex>
0xff
<HlCHex>

<HlCOct attribute="Match" context="#stay" />
<HlCOct>
033
<HlCOct>

<HlCStringChar attribute="Match" context="#stay" />
<HlCStringChar>
\t
<HlCStringChar>

<Int attribute="Match" context="#stay" />
<Int>
947
<Int>
