These are the only anchors supported by Hyperscan, making it easier to write handler patterns that should match exclusively at the beginning or at the end of a stream.
The exception mapping has also been changed in hexstring2regex, as anchors are processed during lexing, and it raises a different exception then what is raised during parsing. Fortunately lark has a nice exception base class to use.
These are the only anchors supported by Hyperscan, making it easier to write handler patterns that should match exclusively at the beginning or at the end of a stream.
The exception mapping has also been changed in
hexstring2regex, as anchors are processed during lexing, and it raises a different exception then what is raised during parsing. Fortunately lark has a nice exception base class to use.