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Jon GallegosSubject: The last five bytes of a variable length field
Author: Jon Gallegos
Date: 20 May 2008 03:38 PM
I have a text field where the identification number is located on the last five bytes of the field. This is number is always on the last five bytes, but the field length is dynamic.

How can I grab the last five bytes of a variable length field?

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James DurningSubject: The last five bytes of a variable length field
Author: James Durning
Date: 20 May 2008 04:00 PM
If each byte is a character, you could use something like this with string-length():

substring(.,string-length()-5,5)

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Jon GallegosSubject: The last five bytes of a variable length field
Author: Jon Gallegos
Date: 20 May 2008 04:13 PM
This didn't work for me but maybe because of my wonderfull typing abilities. Here is my code;

<xsl:value-of select="substring(b:PLMXML/b:ProductRevision/b:ApplicationRef/@version,string-length()-5,5)"/>

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Tony LavinioSubject: The last five bytes of a variable length field
Author: Tony Lavinio
Date: 20 May 2008 06:59 PM
string-length() takes as an argument the string.

So you should do something like
<xsl:variable name="x" select="...."/>
<xsl:value-of select="substring(x, string-length(x) - 4)"/>

Note that if you want the last 5 characters, you need to only
subtract 4.

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Jon GallegosSubject: The last five bytes of a variable length field
Author: Jon Gallegos
Date: 21 May 2008 08:58 AM
I am still having issues though I am sure i have a typo somewhere. Here is what I have

<xsl:variable name="x"select="b:ProductRevision/b:ApplicationRef/@version"/>
<xsl:value-of select="substring(x, string-length(x) - 4)"/>


one quick question should the substing look like this?
<xsl:value-of select="substring(x, string-length(x) - 4), 5"/>

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Alberto MassariSubject: The last five bytes of a variable length field
Author: Alberto Massari
Date: 21 May 2008 09:54 AM
Hi Jon,
there is a typo in the suggestion: variables should be referenced as $x, not just 'x'. As for the last argument of substring, if omitted it means 'until the end of the input string'.

Alberto

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Jon GallegosSubject: The last five bytes of a variable length field
Author: Jon Gallegos
Date: 21 May 2008 10:10 AM
Ahh yes the typo king strikes again

Final code looks like this

<xsl:variable name="hld1" select="@version"/>
<xsl:variable name="hld2" select="string-length(@version)-3"/>
<xsl:value-of select="substring($hld1,$hld2,4)"/>


Thanks

 
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