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path: root/ivy.go
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package main

import (
	"strings"

	irc "github.com/fluffle/goirc/client"
	ivy "robpike.io/ivy/mobile"
)

type Ivy struct {
	Command
}

func (_ Ivy) WithArgs(_ int) bool { return true }

func (_ Ivy) Handle(conn *irc.Conn, line *irc.Line) {
	switch q := strings.SplitN(line.Text(), " ", 2); len(q) {
	case 1:
		ivy.Reset()
	case 2:
		if strings.Contains(q[1], "ivy") {
			return
		}
		result, err := ivy.Eval(q[1])
		if err != nil {
			result = err.Error()
		}
		if len(result) > 500 {
			conn.Notice(line.Target(), "result too long")
		} else {
			for i, s := range strings.Split(result, "\n") {
				conn.Notice(line.Target(), s)
				if i > 5 {
					conn.Notice(line.Target(), "output truncated")
					return
				}
			}
		}
	}
}

func (_ Ivy) Help() string {
	return "APL like interpreter. See robpike.io/ivy"
}

func init() {
	Register("ivy", &Ivy{})
}