In a DITA-OT preprocessing plugin, how can I tell what transformation type is being run?

[chrispy-snps]

In a DITA-OT plugin, I want to apply some preprocessing to only certain transformation types. How can I do this?

[chrispy-snps]

One way would be to extend an existing transformation type, then add additional custom tasks to the preprocessing pipeline. I don't have an example for this, as I've never done it.

Another way is to import the TRANSTYPE Ant property into an existing XSLT preprocessing stage, then reference it like this:

  <!-- this is applied only in 'html5' transformations -->
  <xsl:template match="/your/xpath/here[$TRANSTYPE = 'html5']">
    <!-- your processing here -->
  </xsl:template>

You can import the property as an XSLT parameter using one of the dita.preprocess.*.param extension points. Here is a sample plugin showing how to do this:

com.synopsys.show-transtype.zip