Need help to create an XPL

Hi XProc users,

I need some help in creating an XPL to accomplish the following steps on a
given XML doc -

1. Schema validation on "my_input_file.xml" using user supplied (XSD)
schema. The file should remain unchanged and fed to the next step.
2. Schematron validation on "my_input_file.xml" using a user supplied
schematron (.SCH). The file should remain unchanged and fed to the next
step.
3. XSLT transform on "my_input_file.xml" (using a user supplied .xsl) to
produce "my_output_file.xml".


-- 
M. A. Arefin

240.401.7074 (cell)