freebsd-ports/textproc/py-pyPEG2/pkg-descr

PyPEG2 is a parser-interpreter for Parsing Expression Grammars (PEGs).

PEGs look similar to context-free grammars (CFGs), except that the choice
operator always picks the first matching option. This allows for parsing
in linear time.

WWW: https://fdik.org/pyPEG/
Add py-pyPEG2. I am currently in the process of creating ports for various components related to CloudABI, including ARPC (an RPC framework that supports file descriptor passing) and Flower (a capability-based network backplane). The former comes with a script called 'aprotoc' for creating C++ bindings for messages and RPC services. This script depends on Python's pyPEG2 package to parse (a subset of) Protobuf's .proto grammar. Reviewed by: wg Differential Revision: https://reviews.freebsd.org/D12048 2017-08-17 11:45:13 +02:00			`PyPEG2 is a parser-interpreter for Parsing Expression Grammars (PEGs).`

			`PEGs look similar to context-free grammars (CFGs), except that the choice`
			`operator always picks the first matching option. This allows for parsing`
			`in linear time.`

			`WWW: https://fdik.org/pyPEG/`