Implements the fuzzy matching engine, including FuzzyMatchV1 and FuzzyMatchV2 with a documented scoring model that rewards boundary, camelCase, and consecutive matches while penalizing gaps. The package is self-contained and exposes a consistent function signature, making it extractable into a general-purpose fuzzy-search library. It demonstrates non-obvious algorithmic craftsmanship in balancing match quality against performance.

Provides a reusable slab allocation pool of []int16/[]int32 slices, reducing allocation pressure and GC churn during high-throughput matching. This is an isolated, generic memory-management pattern that can be dropped into any performance-sensitive Go program that repeatedly allocates small temporary slices.

A hand-written, fuzz-tested ANSI escape sequence parser that extracts color and style information from input lines. It is decoupled from fzf-specific state and can be reused as a standalone library for parsing, stripping, or transforming terminal escape codes in other CLI tools.

Implements a condition-variable-based event delivery box for coordinating producer/consumer goroutines. It is a self-contained concurrency primitive that provides lightweight wait/notify and event fan-out semantics, useful in any Go application needing decoupled inter-goroutine communication.

Parses field index expressions and applies them to transform line-based input for --with-nth and --accept-nth. The token/transformer pattern is generic and can be extracted into a reusable library for CLI tools that need flexible field selection, reordering, or exclusion on delimited text.