Is it possible to add contitions to ?

Question

<xsl:key name="item" match="SHOPITEM" use="substring-before(PRODUCT, ' ')" />

Hello, i'm using this part of code to verify elements by first word but this is not enough. i have to add some conditions like:

if contains(PRODUCT, "SIZE.") then substring-before(PRODUCT, 'SIZE.') else get all value of PRODUCT

is it possible to put "if" inside "use" or any other way to do that?

For 1.0 https://stackoverflow.com/questions/10863491/xslt-grouping-on-multiple-keys-using-muenchian-method Check it — Ajeet Singh, Mar 25 '19 at 09:56
Your life would be much easier for this kind of thing if you were able to move to XSLT 2.0 or 3.0 — Michael Kay, Mar 25 '19 at 10:13
Yes i know but application which i'm using in my job allows only XSLT 1.0 :/ — Szczepan, Mar 25 '19 at 11:41

score 2 · Accepted Answer · answered Mar 25 '19 at 09:59

In XSLT 1.0, you can use a technique called Oliver Becker's method, which means writing the use in this form

concat(
  substring(Str1,1 div Cond),
  substring(Str2,1 div not(Cond))
)

So, in your case, you could write your xsl:key like this:

<xsl:key name="item2" match="SHOPITEM" use="concat(
        substring(substring-before(PRODUCT, ' SIZE.'), 1 div (contains(PRODUCT, ' SIZE.'))),
        substring(PRODUCT, 1 div (not(contains(PRODUCT, ' SIZE.'))))
    )" />

Whether you consider this readable is another matter.

However, in this particular case, for the logic you are trying to implement, you could also write the key like this:

 <xsl:key name="item" match="SHOPITEM" use="substring-before(concat(PRODUCT, ' SIZE.'), ' SIZE.')" />

So, if the PRODUCT contains SIZE. it will find the text before the first occurrence. If not, it will the concatenated SIZE. which effectively get the whole string

See examples in action at http://xsltfiddle.liberty-development.net/jyRYYij

Is it possible to add contitions to ?

1 Answers1