build(deps): update fancy-regex requirement from 0.16 to 0.17

[dependabot]

Updates the requirements on fancy-regex to permit the latest version.

Release notes

Sourced from fancy-regex's releases.

0.17.0

Added

• Add support for "easy" variable-length lookbehinds (enabled via new feature flag) (#194, #196)
• Add support for more word boundaries: \b{start}, \b{end}, \b{start-half}, \b{end-half} (#193)
• Allow {...} repetition syntax after assertions (except in Oniguruma mode) (#193)
• Add Oniguruma mode flag to playground (#199)

Changed

• Rewrite Theory section of Readme in a more formal style (#187)
• Box CompileError in Error enum to reduce size (#204)
• Bail out early when \G fails to match for increased performance (#198)
• Handle ignore_whitespace case in parsing escape sequences (#193)
• Add tests to ensure that Regex is Send and Sync (#195)

Fixed

• Fix clippy lint warnings (#204)

Changelog

Sourced from fancy-regex's changelog.

[0.17.0] - 2025-12-13

Added

• Add support for "easy" variable-length lookbehinds (enabled via new feature flag) (#194, #196)
• Add support for more word boundaries: \b{start}, \b{end}, \b{start-half}, \b{end-half} (#193)
• Allow {...} repetition syntax after assertions (except in Oniguruma mode) (#193)
• Add Oniguruma mode flag to playground (#199)

Changed

• Rewrite Theory section of Readme in a more formal style (#187)
• Box CompileError in Error enum to reduce size (#204)
• Bail out early when \G fails to match for increased performance (#198)
• Handle ignore_whitespace case in parsing escape sequences (#193)
• Add tests to ensure that Regex is Send and Sync (#195)

Fixed

• Fix clippy lint warnings (#204)

[0.16.2] - 2025-09-19

Added

• Add an "oniguruma mode" flag to control whether \< and \> are treated as literals or word-boundary assertions. (#186)
• Add support for const-size backrefs in lookbehinds. (#182)

Changed

• A few small internal changes which allowed us to expose a web-based playground for fancy-regex. (#181)

Fixed

• Fix behavior of repetition on an empty match. (#179)
• Always return the original input pattern when as_str is called. (#185)
• Fix panic when matching non-ascii text as part of a case insensitive backref. (#189)
• The toy example wasn't always showing the correct analysis or compiled program when optimizations were applied. (#181)

[0.16.1] - 2025-08-02

Fixed

• Fixed a bug whereby sometimes a backreference to a non-existing capture group would compile successfully when it should fail, causing a panic in the VM when trying to match the regex. (#174)

[0.16.0] - 2025-08-01

Added

• Add an optimization step after the pattern is parsed but before it is analyzed. Currently it only optimizes one specific use-case - where the expression is easy except for a trailing positive lookahead whose contents are also easy. The optimization is to delegate to the regex crate instead of using the backtracking VM. (#171)

Changed

• Patterns which are anchored to the start of the text (i.e. with ^ when not in multiline mode) should now fail faster when there is no match, because fancy-regex no longer tries to match at other positions. (#170)
• The CompileError for an invalid (numbered) backref has been updated to mention which backref was invalid (#170)
• Removed dependency on derivative (#169)

Fixed

• Fixed a bug whereby sometimes a capture group containing a backref to itself would cause a compile error, when it is valid - this fixes a few Oniguruma test cases (#170)

[0.15.0] - 2025-07-06

Added

• Support \Z - anchor to the end of the text before any trailing newlines. (#148)
• Support \O - any character including newlines. (#158)
• The parser can now parse subroutine calls and relative backreferences (but execution is still unsupported). This is preparation for future work. Some new error variants have been added for features which can be parsed but are still otherwise unsupported.
• Backreferences can now be case insensitive. (#160)

... (truncated)

Commits

• 1f8a5d1 Version 0.17.0
• c0b90eb Merge pull request #198 from fancy-regex/min_pos_continue_optimization
• 6f4ea4f Add documentation for min_pos_in_group
• 342e5e0 Add tests for various patterns containing \G
• c97470e track whether inside an alternation
• 29ff5dd bail out early when \G fails to match
• 656e1df add benchmarks for \G
• d38b259 record min position in group
• 2ee85f9 Merge pull request #203 from fancy-regex/remove_clone_from_insn
• 6690229 Merge pull request #204 from fancy-regex/fix-large-compile-error
• Additional commits viewable in compare view

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[codspeed-hq]

CodSpeed Performance Report

Merging #912 will not alter performance

_{Comparing dependabot/cargo/fancy-regex-0.17 (0e6c5e6) with master (de9416b)}

Summary

✅ 61 untouched

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 94.38%. Comparing base (de9416b) to head (0e6c5e6).
⚠️ Report is 2 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #912   +/-   ##
=======================================
  Coverage   94.38%   94.38%           
=======================================
  Files          78       78           
  Lines       17529    17529           
=======================================
  Hits        16544    16544           
  Misses        985      985           

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