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.
This release includes a ground-up rewrite of the regex-syntax crate, which has
been in development for over a year.
New features:
Error messages for invalid regexes have been greatly improved. You get these
automatically; you don't need to do anything. In addition to better
formatting, error messages will now explicitly call out the use of look
around. When regex 1.0 is released, this will happen for backreferences as
well.
Full support for intersection, difference and symmetric difference of
character classes. These can be used via the &&, -- and ~~ binary
operators within classes.
A Unicode Level 1 conformat implementation of \p{..} character classes.
Things like \p{scx:Hira}, \p{age:3.2} or \p{Changes_When_Casefolded}
now work. All property name and value aliases are supported, and properties
are selected via loose matching. e.g., \p{Greek} is the same as
\p{G r E e K}.
A new UNICODE.md document has been added to this repository that
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.
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.
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.
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Bumps regex from 0.1.77 to 1.5.5.
Release notes
Sourced from regex's releases.
... (truncated)
Changelog
Sourced from regex's changelog.
... (truncated)
Commits
d1303811.5.5ae70b41security: fix denial-of-service bug in compilerb92ffd5cargo: use SPDX license formatf6e52dasyntax: fix 'unused' warnings5197f21fuzz: do not use inherits in Cargo.toml3662851doc: fix typo63ee669syntax/doc: fix 'their' typod6bc7a4readme: remove broken badgebd74660fuzz: try to fix build issuebd0a142readme: fix badgesDependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting
@dependabot rebase.Dependabot commands and options
You can trigger Dependabot actions by commenting on this PR: - `@dependabot rebase` will rebase this PR - `@dependabot recreate` will recreate this PR, overwriting any edits that have been made to it - `@dependabot merge` will merge this PR after your CI passes on it - `@dependabot squash and merge` will squash and merge this PR after your CI passes on it - `@dependabot cancel merge` will cancel a previously requested merge and block automerging - `@dependabot reopen` will reopen this PR if it is closed - `@dependabot close` will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually - `@dependabot ignore this major version` will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself) - `@dependabot ignore this minor version` will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself) - `@dependabot ignore this dependency` will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself) - `@dependabot use these labels` will set the current labels as the default for future PRs for this repo and language - `@dependabot use these reviewers` will set the current reviewers as the default for future PRs for this repo and language - `@dependabot use these assignees` will set the current assignees as the default for future PRs for this repo and language - `@dependabot use this milestone` will set the current milestone as the default for future PRs for this repo and language You can disable automated security fix PRs for this repo from the [Security Alerts page](https://github.com/amccreight/heapgraph/network/alerts).