Module look

Types and routines for working with look-around assertions.

This module principally defines two types:

• Look enumerates all of the assertions supported by this crate.
• LookSet provides a way to efficiently store a set of Look values.
• LookMatcher provides routines for checking whether a Look or a LookSet matches at a particular position in a haystack.

Structs

• LookMatcher
  A matcher for look-around assertions.
• LookSet
  LookSet is a memory-efficient set of look-around assertions.
• LookSetIter
  An iterator over all look-around assertions in a LookSet.
• UnicodeWordBoundaryError
  An error that occurs when the Unicode-aware \w class is unavailable.

Enums

• Look
  A look-around assertion.