message.go

package gosudoku

import (
	"log"
	"regexp"
	"strconv"
	"strings"
)

var msgProcessRegex = regexp.MustCompile(`^(box_[a,d,g][1,4,7]),([0-2]),([0-2]):([1-9])$`)
var msgRegex = regexp.MustCompile(`^box_[a,d,g][1,4,7],[0-2],[0-2]:[1-9]$`)
var msgChan = make(chan string, 100)

func processMessages() {
	for message := range msgChan {
		message = strings.TrimSuffix(message, "\n")

		if msgRegex.MatchString(message) {
			matches := msgProcessRegex.FindStringSubmatch(message)
			val, err := strconv.Atoi(matches[4])
			if err == nil {
				if matches[1][:len(matches[1])-1] == myBox.id[:len(myBox.id)-1] {
					x, err := strconv.Atoi(matches[2])
					checkSoftErr(err)
					myBox.setColValue(x, val)
				} else {
					y, err := strconv.Atoi(matches[3])
					checkSoftErr(err)
					myBox.setRowValue(y, val)
				}
			}
		} else {
			log.Println("malformed message received " + message)
		}
	}
}