将数字输入修改为特定的模式格式？

Question

如何使以下代码格式化电话号码以输出结果： +44 123 456 789 而不是 +44 123456789 ?

Function Format-TelephoneNumber {
    Param(
        [Parameter(ValueFromPipeline = $true, Position = 0)]
        [Alias('Number')]
        [string]$TelephoneNumber,
        [Parameter(Position = 1)]
        [string]$DefaultCountryCode = '+44'
    )
    Process {
        $formattedNumber = $TelephoneNumber -replace '[\x09 ]'
        If ($formattedNumber -match '\A(?<CountryCode>\+[1-9]\d|0)(?<Number>\d*)\Z') {
            If ($Matches['CountryCode'] -eq '0') {
                $countryCode = $defaultCountryCode
            }
            Else {
                $countryCode = $Matches['CountryCode']
            }
            $formattedNumber = $countryCode + ' ' + $Matches['Number']
            $formattedNumber
        }
        Else {
            Write-Error "Unable to parse the string '$($number)' as telephone number!"
        }
    }
}

'+33 123456789', '0123456789', '0 123 456 789' | Format-TelephoneNumber

Answer 1

这样的事情应该可以工作，只需将值与数组中的范围连接起来：

Function Format-TelephoneNumber {
    Param(
        [Parameter(ValueFromPipeline = $true, Position = 0)]
        [Alias('Number')]
        [string]$TelephoneNumber,
        [Parameter(Position = 1)]
        [string]$DefaultCountryCode = '+44'
    )
    Process {
        $formattedNumber = $TelephoneNumber -replace '[\x09 ]'
        If (-not ([string]::ISNULLOREMPTY($TelephoneNumber))) {
            If ($formattedNumber -match '\A(?<CountryCode>\+[1-9]\d|0)(?<Number>\d*)\Z') {
                If ($Matches['CountryCode'] -eq '0') {
                    $countryCode = $defaultCountryCode
                }
                Else {
                    $countryCode = $Matches['CountryCode']
                }
                $formattedNumber = $countryCode + ' ' 
                $formattedNumber += -join $Matches['Number'][0..2] + ' '
                $formattedNumber += -join $Matches['Number'][3..5] + ' '
                $formattedNumber += -join $Matches['Number'][6..8]
                $formattedNumber
            }
            Else {
                Write-Error "Unable to parse the string '$($number)' as telephone number!"
            }
        }
    }
}

'+33 123456789', '0123456789', '0 123 456 789' | Format-TelephoneNumber

输出：

+33 123 456 789
+44 123 456 789
+44 123 456 789