Looking for generic text transformation utility library

Looking for generic text transformation utility library

[Phil Eaton]

I can't seem to find a way to do simple programmatic transformations
without writing a good portion of code (that I imagine must have been
written before). I want to be able to make a text selection and run
`(map-selection #'prettify)` and have my `prettify` function called with
the selection and the result of `prettify` written back in place of the
selection.

Same thing goes for a hypothetical `map-buffer`, `map-line`, etc.

Is this a (builtin) thing? Or does every package re-implement this
functionality manually? Is there a library that provides these basic
transformation utilities?

Thank you!

-- 
Phil Eaton

Re: Looking for generic text transformation utility library

[Emanuel Berg]

Phil Eaton wrote:

> I can't seem to find a way to do simple
> programmatic transformations without writing
> a good portion of code

"generic text transformation utility", you mean
like the Unix tool sed(1), the "stream editor
for filtering and transforming text", or tr(1),
to "translate or delete characters"?

Can you provide me/us with an example of
a text, as well as the end result you want it
to be translated into?

-- 
underground experts united
http://user.it.uu.se/~embe8573