XSLT - substring 1

[ddrillich]

Good Day,

Not sure what the following does -

<xsl:value-of select="/article-doc[substring(@orig-obj-ref,1,4)='http']/@orig-obj-ref|/article-doc[substring(@orig-obj-ref,1,1)='/']/@orig-obj-ref"/>

Many thanks.

Regards,
Dan

 

[k5tm]

Select the value of the attribute orig-obj-ref from the root node named article-doc if (1) the value of orig-obj-ref begins with the letters 'http' or (2) the value of orig-obj-ref begins with the character '/'.

substring(@orig-obj-ref,1,4) is selecting characters beginning at character 1 for 4 characters.

substring(@orig-obj-ref,1,1) is selecting characters beginning at character 1 for 1 character.

The square brackets are specifying a predicate (constraint) on the node.

So, some examples:
<article-doc orig-obj-ref="

http://blahblah">...</article-doc>

would be selected. The value returned would be

http://blahblah

.
<article-doc orig-obj-ref="/blahblah">...</article-doc> would be selected. The value returned would be /blahblah.
<article-doc orig-obj-ref="blahblah">...</article-doc> would not be selected.




The '|' character is an operator in the expression.

XPath is fun!

Tom Morrison
Micro Focus

 

[ddrillich]

Many many thanks Tom.