Expand description
These matcher builders can be used from a build script to generate functions that accept bytes as an input and return a mapped value if they find a given byte sequence at the start of the input.
TreeMatcher generates more complicated but often faster code, while
FlatMatcher generates simpler but often slower code. See their
documentation for example usage.
If you need a const fn matcher, then your only option is to use
FlatMatcher with FlatMatcher::return_index(), which causes the
generated function to return the index of the next unmatched byte instead of
a slice. That allows the function to be const.
§Minimum supported Rust version
Currently the minimum supported Rust version (MSRV) is 1.56.1.
Structs§
- Flat
Matcher - Build a function with a single match statement to quickly map byte sequences to values.
- Tree
Matcher - Build a function with nested match statements to quickly map byte sequences to values.
- Tree
Node - A node in a tree matcher’s simple finite-state automaton.
Enums§
- Input
- What kind of input the matcher should accept: a slice or an iterator.