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[xsl] Increasing a numerical value in a for-each loop

2007-05-21 07:32:14
Good day,

I've been going through this mailing list and trying to figure out a way to increase a numerical value in a for-each loop. I know I can't use a variable since I can't change its value after it's been set.

The code:
--snip--
<xsl:for-each select="//Ticket">
  <xsl:choose>
    <xsl:when test="position() mod 2 = 1">
DIR 4:PP <xsl:value-of select="165 + increment"/>,<xsl:value-of select="230 + //offsets/x"/>:FT "Swiss 721 BT",8:PT "23. maí 2007"
    </xsl:when>
    <xsl:otherwise>
DIR 4:PP <xsl:value-of select="165 + increment"/>,<xsl:value-of select="515 + //offsets/x"/>:FT "Swiss 721 BT",8:PT "28. maí 2007"
    </xsl:otherwise>
  </xsl:choose>
</xsl:for-each>
--/snip--

As you can see I'm now using position() to alternate between odd and even elements, but I need to increment 165 by 35 each time the for-each loop is run. I know I can use a template to increment a variable but I don't think that's "The XSL-way".

The output I'm getting now is:
--snip--
      DIR 4:PP 165,230:FT "Swiss 721 BT",8:PT "14. Sept. ´06 kl. 19:30"
      DIR 4:PP 165,515:FT "Swiss 721 BT",8:PT "31. Okt. ´06 kl. 19:30"
      DIR 4:PP 165,230:FT "Swiss 721 BT",8:PT "30. Nóv. ´06 kl. 19:30"
      DIR 4:PP 165,515:FT "Swiss 721 BT",8:PT "8. Feb. ´07 kl. 19:30"
      DIR 4:PP 165,230:FT "Swiss 721 BT",8:PT "1. Mar. ´07 kl. 19:30"
      DIR 4:PP 165,515:FT "Swiss 721 BT",8:PT "22. Mar. ´07 kl. 19:30"
      DIR 4:PP 165,230:FT "Swiss 721 BT",8:PT "20. Apr. ´07 kl. 19:30"
--/snip--

But I want to get:
--snip--
      DIR 4:PP 165,230:FT "Swiss 721 BT",8:PT "14. Sept. ´06 kl. 19:30"
      DIR 4:PP 165,515:FT "Swiss 721 BT",8:PT "31. Okt. ´06 kl. 19:30"
      DIR 4:PP 200,230:FT "Swiss 721 BT",8:PT "30. Nóv. ´06 kl. 19:30"
      DIR 4:PP 200,515:FT "Swiss 721 BT",8:PT "8. Feb. ´07 kl. 19:30"
      DIR 4:PP 235,230:FT "Swiss 721 BT",8:PT "1. Mar. ´07 kl. 19:30"
      DIR 4:PP 235,515:FT "Swiss 721 BT",8:PT "22. Mar. ´07 kl. 19:30"
      DIR 4:PP 270,230:FT "Swiss 721 BT",8:PT "20. Apr. ´07 kl. 19:30"
--/snip--


--
Kær kveðja,
Ómar Kjartan
Midi.is Ltd.
Reykjavikurvegur 74 - 220 Hafnafjordur, Iceland
Tel: +354 540 9800

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