在Powershell中替換多個字符串的正確語法

Question

我們有一個包含3000多個正在遷移到SharePoint站點的HTML文件的目錄，我們需要清理一些數據。

具體情況：

• 文件約1/3的包括XML頭<?xml version="1.0" encoding="utf-8"?> SharePoint可並不喜歡。我們計劃只刪除該標題行。
• 每個文件都有指向兩個備用相關主頁鏈接foo1.htm或foo.htm的「HOME」的javascript參數。我們想要將兩者都改爲絕對鏈接http:\\sharepoint.site\home.aspx
• 每個文件還有一個javascript鏈接參數「顯示」，我們只是想通過將其更改爲''來隱藏它。

這裏是我的功能至今：

function scrubXMLHeader { 
    $srcfiles  = Get-ChildItem $backupGuidePath -filter "*htm.*"        
    $srcfilecount = (Get-ChildItem $backupGuidePath).Count          
    $selfilecount = $srcfiles.Count                
    # Input and Ouput Path variables 
    $sourcePath  = $backupGuidePath 
    $destinationPath = $workScrubPath 
    "Input From: $($sourcePath)" | Log $messagLog -echo   
    " Output To: $($destinationPath)" | Log $messageLog -echo 
    # 
    $temp01 = Get-ChildItem $sourcePath -filter "*.htm" 
    foreach($file in $temp01) 
    { 
     $outfile = $destinationPath + $file 
     $content = Get-Content $file.Fullname | ? {$_ -notmatch "<\?xml[^>]+>" } 
     Set-Content -path $outfile -Force -Value $content 
    } 
} 

我想下面的兩個編輯添加到每個文件：

-replace '("foo.htm", "", ">", "Home", "foo1.htm")', '("http:\\sharepoint.site\home.aspx", "", ">", "Home", "http:\\sharepoint.site\home.aspx") 
-replace 'addButton("show",BTN_TEXT,"Show","","","","",0,0,"","","");', '' 

我不知道如何將這些合併成一個單一語句，所以我打開文件，執行更改，保存並關閉文件，而不是三個單獨的打開編輯 - 保存/關閉事務。我也不確定，用所有的引號和逗號，逃避這些角色的最好方法，或者圍繞整個字符串的單引號是否足夠。

理解到「asking regexes to parse arbitrary HTML is like asking Paris Hilton to write an operating system, it's sometimes appropriate to parse a limited, known set of HTML」，但在我的工具包，PowerShell的限制，我想了解兩個-replace行添加到現有的$content變量......在大括號內用逗號分隔的最好方法？互相傳送？

下面是這些最佳策略嗎？還是有更好的？

$content = Get-Content $file.Fullname | ? {$_ -notmatch "<\?xml[^>]+>", 
    -replace '("foo.htm", "", ">", "Home", "foo1.htm")', '("http:\\sharepoint.site\home.aspx", "", ">", "Home", "http:\\sharepoint.site\home.aspx"), 
    -replace 'addButton("show",BTN_TEXT,"Show","","","","",0,0,"","","");', '' } 

Answer 1

如果我正確讀取的問題，我覺得這可能會做你想要什麼：

$Regex0 = '<?xml version="1.0" encoding="utf-8"?> ' 

$Regex1 = '("foo.htm", "", ">", "Home", "foo1.htm")' 
$Replace1 = '("http:\\sharepoint.site\home.aspx", "", ">", "Home", "http:\\sharepoint.site\home.aspx")' 

$Regex2 = 'addButton("show",BTN_TEXT,"Show","","","","",0,0,"","","");' 


foreach($file in $temp01) 
    { 
     $outfile = $destinationPath + $file 
     (Get-Content $file.Fullname) -notmatch $Regex0,'' -replace $Regex1,$Replace1 -replace $Regex2,'' | 
     Set-Content -path $outfile -Force -Value $content 
    }