Re: number of digits

> Is there any xsl function or trick to get the number of digits of a
> certain number ??

The solution depends on the number system used to represent the number and whether
the number is a whole integer or not:

1. Decimal

string-length($x) - (contains($x, '.')) - (contains($x, '-')) 

2. Hexadecimal integer

<digits:node>
  <digit>0</digit>
  <digit>16</digit>
  <digit>256</digit>
  <digit>4096</digit>
  <digit>65536</digit>
  <digit>1048576</digit>
  <digit>16777216</digit>
  <digit>268435456</digit>
  <digit>4294967296</digit>
  <digit>68719476736</digit>
  <digit>1099511627776</digit>
  <digit>17592186044416</digit>
  <digit>281474976710656</digit>
  <digit>4503599627370496</digit>
  <digit>72057594037927936</digit>
  <digit>1152921504606846976</digit>
</digits:node>

count($st/digits:node/digit[. > $x][1]/preceding-sibling::digit)

where the "st" variable is defined as:

<xsl:variable name="st" select="document('')/*"/>

3. Integer in another numeric system

The same as the above, only the "digits:node/digit" nodes should contain consecutive
powers of the base of the numeric system.


Cheers,
Dimitre Novatchev.

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