DXL variable name leading underscore gives error

Here is a simple script using a variable with a leading underscore

string _s = "test"
print _s

The first time it is runs it gives the runtime error

-E- DXL: <Line:1> syntax error
-E- DXL: <Line:2> incorrect use of identifier (print)
-I- DXL: All done. Errors reported: 2. Warnings reported: 0.

If you hit run again then it executes and prints 'test'

Anybody know why this happens?

Sean

Re: DXL variable name leading underscore gives error
Mathias Mamsch - Mon Dec 07 06:15:22 EST 2015

The DXL manual states:

An identifier is an arbitrarily long sequence of characters. 
The first character must be a letter; the rest of the identifier may contain letters, numerals or either of the following two symbols:_ '

That DXL does not check correctly for this, does not mean you are allowed to use it. DXL has a lot of these quirks. You learn which ones you can ignore and which one you cannot over time. This one I would not ignore. Use nice variable names. Regards, Mathias