Thank you Lex, it's truly enlightening, I will explore more details in this area. ... View more

Hi Lex, Thanks for your explanation and will note this in daily work; Currently our project would merely use the official released stylesheet and it workd well, likes below: proc xsl in="&define_sdtm_root.define_SDTM.xml" xsl="&define_sdtm_root.define2-1-0.xsl" out="&define_sdtm_root.define_SDTM.html"; run; I understand that in some cases, we may need to modify the stylesheet, but I'm not sure about the situation you mentioned, "stylesheet imports other stylesheets".   Are you referring including another stylesheet inside the current stylesheet? I don't quite understand why this is done. Could you introduce a bit about it, or are there any papers that introduce this work.   Thank you!   ... View more

"PROC XSL can be limited" Could you explain some details about the limitations? What should we pay attention to if we want to use PROC XSL? ... View more