build(rust): vendor googletest crate

third_party/crates/regex-automata-0.4.18/src/util/mod.rs

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+/*!
+A collection of modules that provide APIs that are useful across many regex
+engines.
+
+While one should explore the sub-modules directly to get a sense of what's
+there, here are some highlights that tie the sub-modules to higher level
+use cases:
+
+* `alphabet` contains APIs that are useful if you're doing low level things
+with the DFAs in this crate. For example, implementing determinization or
+walking its state graph directly.
+* `captures` contains APIs for dealing with capture group matches and their
+mapping to "slots" used inside an NFA graph. This is also where you can find
+iterators over capture group names.
+* `escape` contains types for pretty-printing raw byte slices as strings.
+* `iter` contains API helpers for writing regex iterators.
+* `lazy` contains a no-std and no-alloc variant of `lazy_static!` and
+`once_cell`.
+* `look` contains APIs for matching and configuring look-around assertions.
+* `pool` provides a way to reuse mutable memory allocated in a thread safe
+manner.
+* `prefilter` provides APIs for building prefilters and using them in searches.
+* `primitives` are what you might use if you're doing lower level work on
+automata, such as walking an NFA state graph.
+* `syntax` provides some higher level convenience functions for interacting
+with the `regex-syntax` crate.
+* `wire` is useful if you're working with DFA serialization.
+*/
+
+pub mod alphabet;
+#[cfg(feature = "alloc")]
+pub mod captures;
+pub mod escape;
+#[cfg(feature = "alloc")]
+pub mod interpolate;
+pub mod iter;
+pub mod lazy;
+pub mod look;
+#[cfg(feature = "alloc")]
+pub mod pool;
+pub mod prefilter;
+pub mod primitives;
+pub mod start;
+#[cfg(feature = "syntax")]
+pub mod syntax;
+pub mod wire;
+
+#[cfg(any(feature = "dfa-build", feature = "hybrid"))]
+pub(crate) mod determinize;
+pub(crate) mod empty;
+pub(crate) mod int;
+pub(crate) mod memchr;
+pub(crate) mod search;
+#[cfg(feature = "alloc")]
+pub(crate) mod sparse_set;
+pub(crate) mod unicode_data;
+pub(crate) mod utf8;