As the author of both the SRFI and the guile code I am very happy you like it. I don't have a computer at the moment, but I looked through the code and it looked great.
All additions should have been included in the original SRFI :) one comment: your code uses define-public, which the rest of SRFI-171 code does not. I am not in any position to sign code off for inclusion in guile proper, but if the define-public thing is fixed it very much has my blessing. Best regards Linus Björnstam On Wed, 21 Dec 2022, at 01:48, Colin Woodbury wrote: > Happy holidays everyone, I hope everything is going well for you. > > Since discovering SRFI-171 (Transducers) I have fallen in love with it. > Transducers let me "talk the way I want to talk" while knowing that I'm > being efficient underneath w.r.t. to iteration and allocation. In using > Guile's implementation, I noticed a few common idioms missing that are > otherwise present in other languages, so I've added them in a series of > patches. I've been using these often for a number of weeks without > issue, but of course have added unit tests as well. > > The full details are in the commit messages, but here are the main highlights: > > * rfold: The fundamental reducer. This allows the user to turn any > two-arg function into a valid reducer, so that they don't need to worry > about hand-writing reducers via case-lambda. > * rfind: Yields the first item in the transduction that matches some > predicate. Nice for locating some specific value from a potentially > large data source (e.g. a port). > * twindow: Like tsegment, but yields overlapping slices into the data. > Cheers, and have a great holiday. > > Colin > > Attachments: > * 0001-srfi-171-add-twindow-and-various-reducers.patch > * 0002-doc-add-new-SRFI-171-reducers-to-the-manual.patch > * 0003-srfi-171-add-unit-tests-for-new-functions.patch
