@SCRIPT does not like all comments

[Joe Caverly]

Using;

TCC  16.03.54  Windows Vista [Version 6.0.6002]
TCC Build 54  Windows Vista Build 6002  Service Pack 2

I am converting some of my larger VBScripts to TCC functions, using a utility that I created, vbs2Function.exe

Example;

a=10
a=a+1
'Create a console for output
set fso=CreateObject("Scripting.FileSystemObject")
set stdout=fso.GetStandardStream(1)
stdout.WriteLine a
Rem This is a comment

runs properly using

cscript //nologo test.vbs

and converts to this;

function test=`%@script[vbscript,a=10:a=a+1:'Create a console for output:set fso=CreateObject("Scripting.FileSystemObject"):set stdout=fso.GetStandardStream(1):stdout.WriteLine a:Rem This is a comment:]`

Running this as

echo %@test[]

returns nothing but the prompt.

The reason for this is the first comment. If I remove the first comment from the @script function, it works properly with no problem.

It appears that, when using the @script function, comments are allowed only at the end of the command. If comments are placed anywhere else in the @script function, execution halts.

Why is this?

Joe

TCC  16.03.54  Windows Vista [Version 6.0.6002]
TCC Build 54  Windows Vista Build 6002  Service Pack 2

 

[rconn]

Only Microsoft knows. @SCRIPT passes the script file name to the Windows scripting host -- the parsing and execution is up to Windows.

 

[myarmor]

It appears that, when using the @script function, comments are allowed only at the end of the command. If comments are placed anywhere else in the @script function, execution halts.

Why is this?

In vbscript ' is a line comment, in other words, everything from that char until the end of line (#13#10) will be treated as a comment.
(The same is true for jscript's // comment)
If you place it at the end of the code it obviously won't matter, because no code follows.

I'm not sure if vbscript has a block comment equalient (iow, similar to jscript's /*comment*/)