• ANN: Dogelog Player 2.3.2 (Schwartzian Transform)

    From Mild Shock@janburse@fastmail.fm to comp.lang.java.programmer on Mon Sep 28 13:05:34 2026
    From Newsgroup: comp.lang.java.programmer

    Dear All,

    We are happy to announce a new
    edition of the Dogelog Player:

    - Enhanced common:
    Triggered by SWI-Prologs new built-ins,
    we did a revision of library(cyclic) now
    exposing term_minimal/2 and term_decompose/2.
    Turns out we could also speed-up distinct/1
    and aggregate/3, by using term_minimal/2
    alone in the deduplication phase. And
    then for aggregate/3 deploying a Schwartzian
    Transform with term_decompose/2 in
    the sorting phase.

    - Enhanced top-level:
    We also did a revision of the top-level.
    For example answer substitutions are now
    shown more compact, so that a query X = f(A,Y),
    Y = f(B,X) can keep its shape. Further
    the debugger now uses the visibility rules
    of listing/[0,1]. Even overriding the
    provenance of goals arguments and only
    prompting in case they branch back
    into user clauses.

    - New undo/1:
    Realizing the analogue to our recent rogue
    '$CUT'/1 for cleanup goals, this time not
    scanning the choice points but the variable
    trail to find undo goals, we could arrive
    at a undo/1. Because of atomicity concerns,
    its not directly exposed, and subsequently
    the user facing API has now new set_arg/3
    and setup_undo/2 only.

    Have Fun!

    Jan Burse, September 28, 2026, https://www.herbrand.ai/
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