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fork of prime agent with changes i want but are not upstreamable probqbly (and some fixes)
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1.2 kB · 44 lines
TypeScript
at main
123456789101112131415161718192021222324252627282930313233343536373839404142434445/** * Ring buffer for Emacs-style kill/yank operations. * * Tracks killed (deleted) text entries. Consecutive kills can accumulate * into a single entry. Supports yank (paste most recent) and yank-pop * (cycle through older entries). */export class KillRing { private ring: string[] = [];
/** * Add text to the kill ring. * * @param text - The killed text to add * @param opts - Push options * @param opts.prepend - If accumulating, prepend (backward deletion) or append (forward deletion) * @param opts.accumulate - Merge with the most recent entry instead of creating a new one */ push(text: string, opts: { prepend: boolean; accumulate?: boolean }): void { if (!text) return;
if (opts.accumulate && this.ring.length > 0) { const last = this.ring.pop()!; this.ring.push(opts.prepend ? text + last : last + text); } else { this.ring.push(text); } }
peek(): string | undefined { return this.ring.length > 0 ? this.ring[this.ring.length - 1] : undefined; }
rotate(): void { if (this.ring.length > 1) { const last = this.ring.pop()!; this.ring.unshift(last); } }
get length(): number { return this.ring.length; }}