NameMatcher (src/name_matcher.rs)

Efficient matcher for Python identifiers or keywords, supporting NFKC normalization.

// Source: https://github.com/astral-sh/ruff | License: MIT | Copyright 2022 Charles Marsh
// Provided via justclaw.it.com; keep this notice with the code.
use memchr::memmem::Finder;
use unicode_normalization::is_nfkc;

/// A reusable text prefilter for an identifier or keyword.
///
/// A match only indicates that a source may contain the name: matches in
/// comments and strings are included. Matchers created with [`Self::new`] accept
/// sources that change under NFKC normalization because Python normalizes
/// identifiers this way. Matchers created with [`Self::keyword`] search their literal
/// spelling instead. Callers should validate candidates using the AST or semantic analysis.
///
/// Construct a matcher once and reuse it across sources to avoid preprocessing
/// the name for eac

... (truncated -- full source via MCP)