Question

我们有一个3000+ HTML文件的目录正在迁移到sharepoint站点，我们需要清理一些数据。

具体情况：

大约1/3的文件包含sharepoint不喜欢的XML标头<?xml version="1.0" encoding="utf-8"?>。我们计划删除该标题行。
每个文件都有“HOME”的javascript参数，指向两个备用相关主页链接foo1.htm或foo.htm。我们希望将两者都更改为http:\\sharepoint.site\home.aspx
每个文件还有一个javascript链接参数“Show”，我们只想将其隐藏起来，方法是将其更改为''。

到目前为止，这是我的功能：

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
    }
}

我想为每个文档添加以下两个编辑：

-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,"","","");', ''

我不确定如何将这些组合成单个语句，因此我打开文件，执行更改，保存并关闭文件，而不是三个单独的open-edit-save / close事务。我也不确定，使用所有引号和逗号，是逃避这些字符的最佳方法，或者整个字符串周围的单引号是否足够。

了解“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”，但我的工具集仅限于PowerShell，我试图了解将两条-replace行添加到现有$content变量的最佳方法...用花括号内的逗号分隔？彼此用管道输送？

以下是这些最佳策略吗？还是有更好的东西？

$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

如果我正确地阅读了这个问题，我认为这可能会做你想要的：

$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
    }

在Powershell中替换多个字符串的正确语法

1 个答案: