XPTY0004: An empty sequence is not allowed as the first argument of md2doc:convert()

[martin-macak]

Saxon version 9.7

Run command
java -jar lib/saxon9he.jar\ -it:{http://www.markdown2docbook.com/ns/md2doc}main\ -xsl:lib/markdown2docbook-1.0.4/src/md2doc.xsl\ input=hello.md\ encoding=utf-8\ root-element=book\ headline-element=chapter\ savepath=output.xml

hello.md

Hello

Just a test

Getting
MD2Doc: Error with input file: incorrect encoding or missing file
Type error at char 32 in xsl:sequence/@select on line 58 column 123 of md2doc.xsl:
XPTY0004: An empty sequence is not allowed as the first argument of md2doc:convert()
An empty sequence is not allowed as the first argument of md2doc:convert()

[martin-macak]

I just realized that the problem seems to be in input parameter. When I tried to provide absolute path then I got expected result.
It seems that there's something wrong with path evaluation in read-file function

[msmid]

Hello, there is very similiar issue and you got the right clue. Read-file function behaves incorrectly. I'll look at it when I got some spare time