Re: [PATCH] gnu-maintenance: update-package-source: Only update the desired package.

[ludo@gnu.org (Ludovic Courtès)]

Andy Wingo <wingo@igalia.com> skribis:

> In that case I think the ideal is something like "edit-expression",
> which takes a source location that starts an expression, uses "read" to
> advance to the end of the expression, then edits the intervening string
> using whatever but verifies that the result can still be read as one
> expression.  Having recorded the absolute byte positions of the start
> and end of the expression, you can then create the output by doing an
> efficient bytevector read of the prologue, then display the string for
> the edited expression, then the bytevector tail.

Indeed, that sounds like the right abstraction!

Thanks,
Ludo’.