> On 27. Apr 2024, at 20:02, felix.winkelm...@bevuta.com wrote:
>
>> Dear All,
>>
>> is it somehow possible (ie via macros) to have a line in a scheme source
>> code file being a comment line by default and only when a certain symbol or
>> group of symbols is starting a line it is an uncommented / evaluated line?
>> Basically, the reverse of a normal source file where I need to introduce a
>> comment line. I would imagine a header line setting up this "comment"-mode,
>> and below this every line becomes a comment unless explicitly uncommented.
>
> You could use "set-read-syntax!" or "set-sharp-read-syntax!" to define a
> sequence
> that either treats the line as a comment or reads and returns it as an
> expression.
> Dropping means to skip subsequent lines prefixed with the chosen sequence or
> returning the first expression that follows. Since an expression may straddle
> multiple
> prefixed lines, you may have to dynamically bind a flag that ignores the
> sequence
> in nested reads. This may need a bit of fiddling, but that is probably the
> approach
> I would try.
>
>
> felix
>
Dear felix,
This looks like a very good starting point. Thank you for pointing me in the
right direction.
Cheers
Christian
