Valid characters for labels

[ngdrummer]

I know it's somewhere, but I'm lost on where the table of valid characters for both starting a label or having anywhere in a label is. i.e., I know it cannot start with a number, but can have a number later in the label.  Where is this information?

thanks!

[cadet1620]

ngdrummer wrote

I know it's somewhere, but I'm lost on where the table of valid characters for both starting a label or having anywhere in a label is. i.e., I know it cannot start with a number, but can have a number later in the label.  Where is this information?

thanks!

It is rather hard to spot without reading linearly! I didn't see it quickly scanning chapter 4 so I searched the PDF files.

It's in both sections 4.2.6 and 6.2.1.

    Constants and Symbols Constants must be non-negative
    and are always written in decimal notation. A user-defined
    symbol can be any sequence of letters, digits, underscore (_),
    dot (.), dollar sign ($), and colon (:) that does not begin with
    a digit.

--Mark

[ngdrummer]

Thanks Mark,

found it in the text right before reading this hehe!