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From: "Maksim Sakki" <maksim.sakki@hansa.ee>
To: "'general@xml.apache.org'" <general@xml.apache.org>
Subject: RE: Strange XSLT behaviour
Date: Mon, 9 Apr 2001 17:42:08 +0200 
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Hi,

The given behaviour is exactly what you get when writing
"format-number(9.5,'00')".
If you want to format numbers keeping 2 decimal places, you should write
"format-number(9.5,'0.00')".

Maksim Sakki


-----Original Message-----
From: Samson, Lyndon [IT] [mailto:lyndon.samson@ssmb.com]
Sent: 09. aprill 2001. a. 17:34
To: general@xml.apache.org
Subject: Strange XSLT behaviour


Using xalan-j_2_0_0

I've noticed some funny behaviour in xalan.

When given this;

<xsl:value-of select="format-number(9.5,'00')"/> +
<xsl:value-of select="format-number(10.5,'00')"/> +
<xsl:value-of select="format-number(11.5,'00')"/> +
<xsl:value-of select="format-number(12.5,'00')"/>

It returns something like this;

10 + 10 + 12 + 12 

That is all the odd numbers are rounded up and even numbers are rounded
down.

The W3c spec refers to the java.text.DecimalFormat class

This test code;

	public void pNum(double num) {
        java.text.FieldPosition fp = new
java.text.FieldPosition(java.text.NumberFormat.FRACTION_FIELD);
        StringBuffer sb = new StringBuffer();
        java.text.DecimalFormat df = new java.text.DecimalFormat("00");
        sb = df.format(num, sb, fp);
        
	  System.out.println("SB:"+sb.toString());
	}


      pNum(9.5);
      pNum(10.5);
      pNum(11.5);
      pNum(12.5);

produces;

SB:10
SB:10
SB:12
SB:12
The same situation! The only question is this a bug or a feature? Maybe my
mathematical memory is faulty
and this is the standard way of rounding to integers? 


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