I vote for allowing dfdl:textStringPadCharacter to have the value %NL;

[Costello, Roger L.]

Hello DFDL community,

I have this input file:

[cid:image002.png@01D49D1F.8A4BAFB0]

One way to characterize that data is that it contains rows separated by exactly 
one newline. Each row contains a label and message separated by a colon. The 
message is a string padded by zero or more newlines.

So, for the message element I would like to use this:

<xs:element name="message" type="xs:string"
    dfdl:lengthKind="pattern"
    dfdl:lengthPattern="[\x00-\x39\x3B-\xFF]+?(?=%NL;([^%NL;]|$))"
    dfdl:representation="text"
    dfdl:encoding="ISO-8859-1"
    dfdl:textTrimKind="padChar"
    dfdl:textStringPadCharacter="%NL;"
    dfdl:textStringJustification="left" />

Sadly, running that yielded this error message:

Error: Property dfdl:textStringPadCharacter cannot contain %NL;

Bummer!

I vote to allow dfdl:textStringPadCharacter to contain %NL;

In the meantime, is there a way to implement this characterization?

/Roger