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// Copyright 2012, 2013 Canonical Ltd.
// Licensed under the AGPLv3, see LICENCE file for details.
package cmd
import (
"regexp"
"launchpad.net/juju-core/names"
)
const (
ContainerSnippet = "(/[a-z]+/" + names.NumberSnippet + ")"
ContainerSpecSnippet = "([a-z]+:)?"
)
var (
validMachineOrNewContainer = regexp.MustCompile("^" + ContainerSpecSnippet + names.MachineSnippet + "$")
)
// IsMachineOrNewContainer returns whether spec is a valid machine id
// or new container definition.
func IsMachineOrNewContainer(spec string) bool {
return validMachineOrNewContainer.MatchString(spec)
}
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