Building a Calculator with goyacc in Go

goyacc is a parser generator that generates parsers. It can be installed with the following command:

go install golang.org/x/tools/cmd/goyacc@master

Download parser.go.y from the following Gist

Next, compile and try running the generated code:

goyacc parser.go.y
go run y.go "1 + 2"

A detailed explanation article for the code is published on the Mynavi site.