Anko
Anko is a scriptable interpreter written in Go.
(Picture licensed under CC BY-SA 3.0, photo by Ocdp)
Usage Example - Embedded
package main
import (
"fmt"
"log"
"github.com/mattn/anko/env"
"github.com/mattn/anko/vm"
)
func main() {
e := env.NewEnv()
err := e.Define("println", fmt.Println)
if err != nil {
log.Fatalf("Define error: %v\n", err)
}
script := `
println("Hello World :)")
`
_, err = vm.Execute(e, nil, script)
if err != nil {
log.Fatalf("Execute error: %v\n", err)
}
// output: Hello World :)
}
More examples are located in the GoDoc:
https://godoc.org/github.com/mattn/anko/vm
Usage Example - Command Line
Building
go get github.com/mattn/anko
go install github.com/mattn/anko
Running an Anko script file named script.ank
./anko script.ank
Anko Script Quick Start
// declare variables
x = 1
y = x + 1
// print using outside the script defined println function
println(x + y) // 3
// if else statement
if x < 1 || y < 1 {
println(x)
} else if x < 1 && y < 1 {
println(y)
} else {
println(x + y)
}
// slice
a = []interface{1, 2, 3}
println(a) // [1 2 3]
println(a[0]) // 1
// map
a = map[interface]interface{"x": 1}
println(a) // map[x:1]
a.b = 2
a["c"] = 3
println(a["b"]) // 2
println(a.c) // 3
// struct
a = make(struct {
A int64,
B float64
})
a.A = 4
a.B = 5.5
println(a.A) // 4
println(a.B) // 5.5
// function
func a (x) {
println(x + 1)
}
a(5) // 6
Please note that the master branch is not stable
The master branch language and API may change at any time.
To mitigate breaking changes, please use tagged branches. New tagged branches will be created for breaking changes.
Author
Yasuhiro Matsumoto (a.k.a mattn)
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