odbtest/test/testexpr.go

package main

import (
	"fmt"
	//"strings"
	"github.com/japm/goScript"
)

func main() {
	
	ctxt := map[string]interface{}{}
	
	ctxt["aaa"] = 5
	ctxt["bbb"] = 10
	ctxt["ccc"] = add
	
	exp := &goScript.Expr{}
	exp.Prepare(`(aaa * bbb) / 10+ccc(5,6)`)
	
	if val, err := exp.Eval(ctxt) ;err == nil {
		fmt.Println( val )
	}else{
		fmt.Println( err )
	}
}

func add(a int, b int) int {
	return a+b
}