Feature idea: conditional GO TO using labels

[patters-match]

Compensating for the lack of IF THEN ELSE in Sinclair BASIC, some programmers use arithmetic GO TO jumps within nested conditional logic as below:

    let s=3: \
    let f=not f: \
    let x=x-1: \
    let t=attr (y,x): \
    if t then \
        let x=u: \
        if t>64 then \
            go to 40+(10 and t>78)

Would it be possible to express this with labels, and have zmakebas work out the necessary arithmetic operation automatically?

e.g. something like:

goto @firstlabel ( @secondlabel and t>78 )

or maybe:

goto @firstlabel or ( @secondlabel and t>78 )

resulting in:

go to @firstlabel (sign( @secondlabel - @firstlabel ))(( @secondlabel - @firstlabel ) and t>78 )

[patters-match]

If I ensure there is whitespace surrounding the label names I can work around this using the following approach, but it is adding some additional computation to the program:

goto @died + (( @cont - @died ) and t>78)

I think this would be ideal if it could be implemented:

goto @died or (@cont and t>78)

[patters-match]

This is what I was using zmakebas for:
https://github.com/patters-syno/microprof

[ohnosec]

The current zmakebas doesn't really do parsing as such. Instead of parsing it simply substitutes strings with tokens. However I really like your idea so I'll have a go at implementing it without a rewrite :)