EXCELLENT advise/suggestion! I fully agree that using global mapping is MUCH better. 👏

I don't think there is an official support way to achieve that.

However, if you temporary change ENSLIB database and remove read-only flag and then:

Set ^IRIS.Msg("EnsColumns","en","ServerName")="Server Name"

or maybe better:

s ^IRIS.Msg("EnsColumnsNAMESPACENAME,"en","ServerName")="Server Name"

where NAMESPACENAME is the name of your production.

And then you put back the read-only flag in ENSLIB  database......you will find a surprise 😉

Note that this is a kind of a hack, you lose the "surprise" when you upgrade and may not work in future versions.

Edit: see @Eduard Lebedyuk advise below for a much better way to do it using global mapping instead of changing ENSLIB

The count syntax ("*") only works if used for the last repeating element and using curly braces, so this works:

HL7.{PIDgrpgrp(1).ORCgrp(1).OBXgrp("*")}

You need to loop in the two previous groups (PID and ORC) to get the total count of OBX segments in the message.

OK, it seems that I did not understood the challenge! 😂

BUT, the instructions read as:

"...build a program (using only printable ASCII characters, tabs and newlines) that prints out...."

What's your concept of "prints out"?

I understand that the provided sample solution doe not printout anything, but the instructions also says:

"....exactly the characters in the printable ASCII space (characters 32 to 126) that don't appear in your program's source code..."

Again, my concept of source code include...well, all the code, including string constants in the source code, so the provided sample solution does not satisfy the conditions because it contains ALL the printable ASCII space!
Maybe it correct because sing it contains all the  printable ASCII space, it does not prints out anything?!

42 characters, but I don't like that code in a class....it's like cheating

43 characters, without feeling cheating 😂

It seems you are using Microsoft Internet Explorer.

Please note that it's not supported, please check Supported Web Browsers in the documentation.

What browser are you using?

The documentation page for your version is this.

Maybe you have issue with your web server, but you didn't provide any details so is impossible to guess.

Maybe you have an issue with the Web/CSP Application setup, but you didn't provide any details so is impossible to guess.

It's unlikely a security issue since you can access csl and zen (supposedly?) in the same Web/CSP application.

"...do I check the status for Prepare and Execute methods?"

No, you don't, but you should.

Is your object a %DynamicObject?

In the Management Portal go to Interoperability (choose namespace if asked) -> List -> Productions

There, do you see the production you need to open?
If yes, select the production line from the list and click the "Open" button below the title bar.

What do you get?

USER>DO HELP^%G
 
The %G utility displays global nodes. A "?" at the "Global ^" prompt
displays the global directory. If you enter just the name of a global,
%G displays the entire global. You may also display a portion of the
global at different subscript levels or specific nodes.
 
A complete global reference, such as ^GLO(3,"BED",5) will display
only that particular node. You may specify a subtree, such as
^GLO(3,"BED", to display all descendants of that node. To display
both the node and its descendants, do not end your entry with a
comma or a right parenthesis.
 
You can leave a subscript field empty when you specify the subtree and
the %G utility displays any nodes matching the other subscripts:
^GLO(,"BED") will match any nodes with 'BED' as the second subscript.
 
You can specify a range of subscripts for a particular subscript
level by inserting a colon between the first and last subscript in the
range: ^PT(1,"ACC":"BIRTH"
 
You can use variables and simple expressions in a subscript
specification by assigning a value to the variable before calling %G.
For example SET ID=214 and enter something like ^PT(ID,0).

You don't provide enough information to help you.

Can you please provide some more detail on how you are "reading" "message_code"?

What kind of object/class and how you load/populate  "response" when you mention "response.message_code"?

What product/version are you using?

Property sessionId As %String(XMLNAME="session_id";

WOW! That's subtle! Well spotted!

The RoutineList query in %Routine class does offer ranges, try this:

Set Query=##class(%Routine).RoutineListFunc("%D:%E")
Do Query.%Display()

Enrico
P.S.: Tested in latest IRIS, I'm not sure that the "Func" query method is available in 2017, but you can use your old %ResultSet with same parameters.

Can you try using the "SuperUser" user instead of "Admin"?

It has happened to me a few time not having access to terminal (OS or IRIS).

For this situation I developed a quick and dirty CSP class to allow me to execute IRIS or OS commands.

Class SomePackege.Cmd Extends %CSP.Page
{

ClassMethod OnPage() As %Status
{
    &html<<html>
<head>
</head>
<body>
<form>
<input type="text" name="cmdOS" size="150" value='#(%request.Get("cmdOS"))#'>
<input type="submit" value="runOS" onclick="this.form.submitted.value=this.value;" >
<br/>
<input type="text" name="cmd" size="150" value='#(%request.Get("cmd"))#'>
<input type="submit" value="runCMD" onclick="this.form.submitted.value=this.value;" >
<input type="hidden" name="submitted">
</form>
>
    If (%request.Get("submitted")="runOS") && (%request.Get("cmdOS")'="") {
        Set cmdOS=%request.Get("cmdOS")
        Set io=$io
        Open cmdOS:"QR"
        Write "<tt>"
        Try {
            For  Use cmdOS Read line Use io Write $replace(..EscapeHTML(line)," ","&nbsp;"),"<br>"
        } Catch CatchError {
            Set sc=CatchError.AsStatus()
        }
        Use io Write "</tt>"
        Close cmdOS
        Use io
    } ElseIf (%request.Get("submitted")="runCMD") && (%request.Get("cmd")'="") {
        Set cmd=%request.Get("cmd")
        Write "<pre>"
        x cmd
        Write "</pre>"
    }
    &html<</body>
</html>>
    Quit $$$OK
}

}

Once the class is loaded (say, from Studio or VS code) in one namespace, just call it from the default csp/web application, for example:

http://yourhost:57772/csp/user/SomePackage.Cmd.cls

Please note that the UI is very, very, VERY rudimental (ugly), but gets the job done in case of need.