diffs-fancy-regex 0.1.0

Fork of fancy-regex 0.16.2 maintained only for diffs-rs: adds caller-owned search scratch, scoped engine sharing, and required-byte metadata. Use upstream fancy-regex (https://github.com/fancy-regex/fancy-regex) instead.
Documentation

diffs-fancy-regex

A fork of fancy-regex maintained only for diffs-rs. Use upstream fancy-regex in your own projects. This crate follows the needs of diffs-rs and may change or stop being updated without notice.

  • Upstream base: fancy-regex 0.16.2, revision 68d300b. The published upstream archive has SHA-256 998b056554fbe42e03ae0e152895cd1a7e1002aec800fdc6635d20270260c46f.

  • Fork version: diffs-fancy-regex 0.1.0. Fork versions are independent of upstream versions.

  • Library name: fancy_regex, as upstream. Depend on it under the upstream name:

    [dependencies]
fancy-regex = { package = "diffs-fancy-regex", version = "0.1.0" }

Changes from upstream

All additions are opt-in or additive. Default features, matching behavior, compiled programs, and errors are unchanged.

  1. Caller-owned search scratch. SearchScratch and Regex::captures_from_pos_with_scratch let a caller reuse the VM's temporary branch, save-history, and delegated-slot buffers across searches.
  2. Scoped engine sharing (feature shared-engines). EngineCache and RegexBuilder::build_with_cache let equal expressions with equal settings share one compiled inner engine within a caller-chosen scope.
  3. Required-byte metadata. Regex::required_ascii_bytes() returns a conservative mask of ASCII bytes that every match needs somewhere in the input. Callers can skip searches that cannot match.
  4. Owner inspection (feature owner-census). A borrowed visitor over existing inner engines, for memory diagnostics.

PATCHES.md describes each change, the changed files, packaging changes, and the checks that updates need. The upstream README is in UPSTREAM_README.md.

License

MIT, as upstream. See LICENSE and AUTHORS. The upstream copyright notice is unchanged, and the fork's changes are distributed under the same license.