PowerShell的突出空白髮現

Question

我有以下腳本，由行會行發現在一個CSV文件中的空格

$yes = New-Object System.Management.Automation.Host.ChoiceDescription "&Yes", "Retain blank space." 

$no = New-Object System.Management.Automation.Host.ChoiceDescription "&No", "Delete blank space." 

$n = @() 

$f = Get-Content C:\MyPath\*.csv 
foreach($item in $f) { 

if($item -like "* *"){ 
    $res = $host.ui.PromptForChoice("Title", "want to keep the blank on this line? `n $item", [System.Management.Automation.Host.ChoiceDescription[]]($yes, $no), 0) 

    switch ($res) 
    { 
     0 {$n+=$item} 
     1 {$n+=$item -replace ' '} 
    } 


} else { 
    $n+=$item -replace ' ' 
} 

} 

$n | Set-Content C:\MyPath\*.csv 

的問題是：當有找了個空位，我怎麼能突出在哪裏排隊或在那裏放置顏色，什麼可以減輕發現它的過程？

編輯：不想改變文件或文本，這應該只顯示在PowerShell的控制檯或在ISE的窗口彈出。

Answer 1

一個基本的代碼示例使用讀主機用戶輸入和改變與寫主背景色在註釋中描述的方法是這樣的：

$str= "test abc1 abc2 test3" 

$index = $str.IndexOf(" ") 
while ($index -gt -1) { 
    write-host $str.Substring(0,$index) -NoNewline 
    write-host "_" -foreground "magenta" -NoNewline 
    $str = $str.Substring($index + 1, $str.length - $index - 1); 
    $index = $str.IndexOf(" ") 
} 
write-host $str.Substring($index + 1, $str.length - $index - 1); 
$confirmation = Read-Host "Do you want to keep the blank on this line?" 
if ($confirmation -eq 'y') { 
    #do action 
} 

編輯：多個白色包含的代碼空間

代碼最初發布：

$n = @() 

$f = Get-Content C:\MyPath\*.csv 
foreach($item in $f) { 

if($item -like "* *"){ 
    #$res = $host.ui.PromptForChoice("Title", "want to keep the blank on this line? `n $item", [System.Management.Automation.Host.ChoiceDescription[]]($yes, $no), 0) 

    $str = $item 
    $index = $str.IndexOf(" ") 
    while ($index -gt -1) { 
     write-host $str.Substring(0,$index) -NoNewline 
     write-host "_" -foreground "magenta" -NoNewline 
     $str = $str.Substring($index + 1, $str.length - $index - 1); 
     $index = $str.IndexOf(" ") 
    } 
    write-host $str.Substring($index + 1, $str.length - $index - 1); 
    $confirmation = Read-Host "Do you want to keep the blank on this line?" 
    if (($confirmation -eq 'y') -or ($confirmation -eq 'Y')) { 
     $n+=$item 
    } 
    else { 
     $n+=$item -replace ' ' 
    } 
} else { 
    $n+=$item -replace ' ' 
} 

} 

$n | Set-Content C:\MyPath\*.csv