You are now in the directory for the port "textproc/docbook-xsl" (package name "docbook-xsl-1.55.0_1").
This is the one-line description for this port:
XSL DocBook stylesheets
Please read the "description file" for a longer description.
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This port requires package(s) "docbook-xml-4.2 mkcatalog-1.1 sdocbook-xml-4.1.2.5" to run.