Bump regex from 0.2.11 to 1.5.5

[dependabot]

Bumps regex from 0.2.11 to 1.5.5.

Release notes

Sourced from regex's releases.

1.0.0

This release marks the 1.0 release of regex.

While this release includes some breaking changes, most users of older versions of the regex library should be able to migrate to 1.0 by simply bumping the version number. The important changes are as follows:

• We adopt Rust 1.20 as the new minimum supported version of Rust for regex. We also tentativley adopt a policy that permits bumping the minimum supported version of Rust in minor version releases of regex, but no patch releases. That is, with respect to semver, we do not strictly consider bumping the minimum version of Rust to be a breaking change, but adopt a conservative stance as a compromise.
• Octal syntax in regular expressions has been disabled by default. This permits better error messages that inform users that backreferences aren't available. Octal syntax can be re-enabled via the corresponding option on RegexBuilder.
• (?-u:\B) is no longer allowed in Unicode regexes since it can match at invalid UTF-8 code unit boundaries. (?-u:\b) is still allowed in Unicode regexes.
• The From<regex_syntax::Error> impl has been removed. This formally removes the public dependency on regex-syntax.
• A new feature, use_std, has been added and enabled by default. Disabling the feature will result in a compilation error. In the future, this may permit us to support no_std environments (w/ alloc) in a backwards compatible way.

For more information and discussion, please see 1.0 release tracking issue.

Changelog

Sourced from regex's changelog.

1.5.5 (2022-03-08)

This releases fixes a security bug in the regex compiler. This bug permits a vector for a denial-of-service attack in cases where the regex being compiled is untrusted. There are no known problems where the regex is itself trusted, including in cases of untrusted haystacks.

• SECURITY #GHSA-m5pq-gvj9-9vr8: Fixes a bug in the regex compiler where empty sub-expressions subverted the existing mitigations in place to enforce a size limit on compiled regexes. The Rust Security Response WG published an advisory about this: https://groups.google.com/g/rustlang-security-announcements/c/NcNNL1Jq7Yw

1.5.4 (2021-05-06)

This release fixes another compilation failure when building regex. This time, the fix is for when the pattern feature is enabled, which only works on nightly Rust. CI has been updated to test this case.

• [BUG #772](rust-lang/regex#772): Fix build when pattern feature is enabled.

1.5.3 (2021-05-01)

This releases fixes a bug when building regex with only the unicode-perl feature. It turns out that while CI was building this configuration, it wasn't actually failing the overall build on a failed compilation.

• [BUG #769](rust-lang/regex#769): Fix build in regex-syntax when only the unicode-perl feature is enabled.

1.5.2 (2021-05-01)

This release fixes a performance bug when Unicode word boundaries are used. Namely, for certain regexes on certain inputs, it's possible for the lazy DFA to stop searching (causing a fallback to a slower engine) when it doesn't actually need to.

[PR #768](rust-lang/regex#768) fixes the bug, which was originally reported in ripgrep#1860.

1.5.1 (2021-04-30)

This is a patch release that fixes a compilation error when the perf-literal feature is not enabled.

... (truncated)

Commits

• d130381 1.5.5
• ae70b41 security: fix denial-of-service bug in compiler
• b92ffd5 cargo: use SPDX license format
• f6e52da syntax: fix 'unused' warnings
• 5197f21 fuzz: do not use inherits in Cargo.toml
• 3662851 doc: fix typo
• 63ee669 syntax/doc: fix 'their' typo
• d6bc7a4 readme: remove broken badge
• bd74660 fuzz: try to fix build issue
• bd0a142 readme: fix badges
• Additional commits viewable in compare view

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