From 7aa11b7a8abacf81dec20fff21216df35d333756 Mon Sep 17 00:00:00 2001
From: Elizabeth Hunt <me@liz.coffee>
Date: Sun, 27 Jul 2025 18:50:33 -0700
Subject: Pulls in pengueno from npm

---
 u/types/collections/cons.ts        | 40 ----------------------
 u/types/collections/index.ts       |  2 --
 u/types/collections/list_zipper.ts | 70 --------------------------------------
 3 files changed, 112 deletions(-)
 delete mode 100644 u/types/collections/cons.ts
 delete mode 100644 u/types/collections/index.ts
 delete mode 100644 u/types/collections/list_zipper.ts

(limited to 'u/types/collections')

diff --git a/u/types/collections/cons.ts b/u/types/collections/cons.ts
deleted file mode 100644
index 05dbe7c..0000000
--- a/u/types/collections/cons.ts
+++ /dev/null
@@ -1,40 +0,0 @@
-import { IOptional, Mapper, Optional } from '@emprespresso/pengueno';
-
-export interface ICons<T> extends Iterable<T> {
-    readonly value: T;
-    readonly next: IOptional<ICons<T>>;
-
-    readonly replace: Mapper<T, ICons<T>>;
-    readonly before: Mapper<IOptional<ICons<T>>, ICons<T>>;
-}
-
-export class Cons<T> implements ICons<T> {
-    constructor(
-        public readonly value: T,
-        public readonly next: IOptional<ICons<T>> = Optional.none(),
-    ) {}
-
-    public before(head: IOptional<ICons<T>>): ICons<T> {
-        return new Cons<T>(this.value, head);
-    }
-
-    public replace(_value: T): ICons<T> {
-        return new Cons<T>(_value, this.next);
-    }
-
-    *[Symbol.iterator]() {
-        for (let cur = Optional.some<ICons<T>>(this); cur.present(); cur = cur.flatMap((cur) => cur.next)) {
-            yield cur.get().value;
-        }
-    }
-
-    static addOnto<T>(items: Iterable<T>, tail: IOptional<ICons<T>>): IOptional<ICons<T>> {
-        return Array.from(items)
-            .reverse()
-            .reduce((cons, value) => Optional.from<ICons<T>>(new Cons<T>(value, cons)), tail);
-    }
-
-    static from<T>(items: Iterable<T>): IOptional<ICons<T>> {
-        return Cons.addOnto(items, Optional.none());
-    }
-}
diff --git a/u/types/collections/index.ts b/u/types/collections/index.ts
deleted file mode 100644
index 69e5d0b..0000000
--- a/u/types/collections/index.ts
+++ /dev/null
@@ -1,2 +0,0 @@
-export * from './cons.js';
-export * from './list_zipper.js';
diff --git a/u/types/collections/list_zipper.ts b/u/types/collections/list_zipper.ts
deleted file mode 100644
index 3df15b5..0000000
--- a/u/types/collections/list_zipper.ts
+++ /dev/null
@@ -1,70 +0,0 @@
-import { Cons, ICons } from './cons.js';
-import { IOptional, Mapper, Optional, Supplier } from '@emprespresso/pengueno';
-
-export interface IZipper<T> extends Iterable<T> {
-    readonly read: Supplier<IOptional<T>>;
-    readonly next: Supplier<IOptional<IZipper<T>>>;
-    readonly previous: Supplier<IOptional<IZipper<T>>>;
-
-    readonly prependChunk: Mapper<Iterable<T>, IZipper<T>>;
-    readonly prepend: Mapper<T, IZipper<T>>;
-    readonly remove: Supplier<IZipper<T>>;
-    readonly replace: Mapper<T, IZipper<T>>;
-}
-
-export class ListZipper<T> implements IZipper<T> {
-    private constructor(
-        private readonly reversedPathToHead: IOptional<ICons<T>>,
-        private readonly currentHead: IOptional<ICons<T>>,
-    ) {}
-
-    public read(): IOptional<T> {
-        return this.currentHead.map(({ value }) => value);
-    }
-
-    public next(): IOptional<IZipper<T>> {
-        return this.currentHead.map<IZipper<T>>(
-            (head) => new ListZipper<T>(Optional.some(head.before(this.reversedPathToHead)), head.next),
-        );
-    }
-
-    public previous(): IOptional<IZipper<T>> {
-        return this.reversedPathToHead.map<IZipper<T>>(
-            (lastVisited) => new ListZipper<T>(lastVisited.next, Optional.some(lastVisited.before(this.currentHead))),
-        );
-    }
-
-    public prependChunk(values: Iterable<T>): IZipper<T> {
-        return new ListZipper<T>(Cons.addOnto(Array.from(values).reverse(), this.reversedPathToHead), this.currentHead);
-    }
-
-    public prepend(value: T): IZipper<T> {
-        return this.prependChunk([value]);
-    }
-
-    public remove(): IZipper<T> {
-        const newHead = this.currentHead.flatMap((right) => right.next);
-        return new ListZipper<T>(this.reversedPathToHead, newHead);
-    }
-
-    public replace(value: T): IZipper<T> {
-        const newHead = this.currentHead.map((right) => right.replace(value));
-        return new ListZipper<T>(this.reversedPathToHead, newHead);
-    }
-
-    *[Symbol.iterator]() {
-        let head: ListZipper<T> = this;
-        for (let prev = head.previous(); prev.present(); prev = prev.flatMap((p) => p.previous())) {
-            head = <ListZipper<T>>prev.get();
-        }
-        if (head.currentHead.present()) yield* head.currentHead.get();
-    }
-
-    public collection() {
-        return Array.from(this);
-    }
-
-    static from<T>(iterable: Iterable<T>): ListZipper<T> {
-        return new ListZipper(Optional.none(), Cons.from(iterable));
-    }
-}
-- 
cgit v1.2.3-70-g09d2