我有一个混乱的CSV文件。我正在尝试使用正则表达式从csv文件的列中的值中提取名字和姓氏。名字和姓氏将有自己的列。
CSV文件（使用不同的分隔符组合）：
ID,Description,Number JDo,John Doe - Temp - Client Client Ops,SomeValue JDo,John Doe - Temp - Client Client Ops,SomeValue JDo,John Doe - Temp - Client Client Ops,SomeValue JDo,John Doe - Temp - Client Client Ops,SomeValue JDo,John Doe - Temp - Client Client Ops,SomeValue JDo,John Doe - Temp - Client Client Ops,SomeValue JDo,John Doe - Temp - Client Client Ops,SomeValue JDo,John Doe - Temp - Client Client Ops,SomeValue JDo,John Doe - Temp - Client Client Ops ,SomeValue JDo,John Doe - Temp - Client Client Ops ,SomeValue JDo,John Doe-Temp-Client Client Ops,SomeValue JDo,John Doe - Temp-Client Client Ops,SomeValue JDo,John Doe - Temp-Client Client Ops,SomeValue JDo,John Doe-Temp - Client Client Ops,SomeValue JDo,John Doe - Temp - Client Client Ops,SomeValue JDo,John Doe - Temp - Client Client Ops,SomeValue JDo,John Doe - Temp - Client Client Ops,SomeValue JDo,John Doe - Temp - Client Client Ops,SomeValue JDo,John Doe-Temp - Client Client Ops ,SomeValue JDo,John Doe-Temp-Client Client Ops ,SomeValue JDo,John.Doe - Temp - Client Client Ops,SomeValue JDo,John .Doe - Temp - Client Client Ops,SomeValue JDo,John. Doe - Temp - Client Client Ops,SomeValue JDo,John . Doe - Temp - Client Client Ops,SomeValue JDo,John.Doe - Temp - Client Client Ops ,SomeValue JDo,John .Doe - Temp - Client Client Ops ,SomeValue JDo,John. Doe - Temp - Client Client Ops ,SomeValue JDo,John . Doe - Temp - Client Client Ops ,SomeValue JDo,John.Doe-Temp-Client Client Ops,SomeValue JDo,John .Doe-Temp-Client Client Ops,SomeValue JDo,John. Doe-Temp-Client Client Ops,SomeValue JDo,John . Doe-Temp-Client Client Ops,SomeValue JDo,John.Doe - Temp - Client Client Ops,SomeValue JDo,John .Doe - Temp - Client Client Ops,SomeValue JDo,John. Doe - Temp - Client Client Ops,SomeValue JDo,John . Doe - Temp - Client Client Ops,SomeValue JDo,John?Doe - Temp - Client Client Ops,SomeValue JDo,John ?Doe - Temp - Client Client Ops,SomeValue JDo,John? Doe - Temp - Client Client Ops,SomeValue JDo,John ? Doe - Temp - Client Client Ops,SomeValue JDo,John?Doe - Temp - Client Client Ops ,SomeValue JDo,John ?Doe - Temp - Client Client Ops ,SomeValue JDo,John? Doe - Temp - Client Client Ops ,SomeValue JDo,John ? Doe - Temp - Client Client Ops ,SomeValue JDo,John?Doe-Temp-Client Client Ops,SomeValue JDo,John ?Doe-Temp-Client Client Ops,SomeValue JDo,John? Doe-Temp-Client Client Ops,SomeValue JDo,John ? Doe-Temp-Client Client Ops,SomeValue JDo,John?Doe - Temp - Client Client Ops,SomeValue JDo,John ?Doe - Temp - Client Client Ops,SomeValue JDo,John? Doe - Temp - Client Client Ops,SomeValue JDo,John ? Doe - Temp - Client Client Ops,SomeValue JDo,"John,Doe - Temp - Client Client Ops",SomeValue JDo,"John ,Doe - Temp - Client Client Ops",SomeValue JDo,"John, Doe - Temp - Client Client Ops",SomeValue JDo,"John , Doe - Temp - Client Client Ops",SomeValue JDo," John,Doe - Temp - Client Client Ops ",SomeValue JDo," John ,Doe - Temp - Client Client Ops ",SomeValue JDo," John, Doe - Temp - Client Client Ops ",SomeValue JDo," John , Doe - Temp - Client Client Ops ",SomeValue JDo,"John,Doe-Temp-Client Client Ops",SomeValue JDo,"John ,Doe-Temp-Client Client Ops",SomeValue JDo,"John, Doe-Temp-Client Client Ops",SomeValue JDo,"John , Doe-Temp-Client Client Ops",SomeValue JDo,"John,Doe - Temp - Client Client Ops",SomeValue JDo,"John ,Doe - Temp - Client Client Ops",SomeValue JDo,"John, Doe - Temp - Client Client Ops",SomeValue JDo,"John , Doe - Temp - Client Client Ops",SomeValue JDo,John-Doe - Temp - Client Client Ops,SomeValue JDo,John -Doe - Temp - Client Client Ops,SomeValue JDo,John- Doe - Temp - Client Client Ops,SomeValue JDo,John - Doe - Temp - Client Client Ops,SomeValue JDo,John-Doe - Temp - Client Client Ops ,SomeValue JDo,John -Doe - Temp - Client Client Ops ,SomeValue JDo,John- Doe - Temp - Client Client Ops ,SomeValue JDo,John - Doe - Temp - Client Client Ops ,SomeValue JDo,John-Doe-Temp-Client Client Ops,SomeValue JDo,John -Doe-Temp-Client Client Ops,SomeValue JDo,John- Doe-Temp-Client Client Ops,SomeValue JDo,John - Doe-Temp-Client Client Ops,SomeValue JDo,John-Doe - Temp - Client Client Ops,SomeValue JDo,John -Doe - Temp - Client Client Ops,SomeValue JDo,John- Doe - Temp - Client Client Ops,SomeValue JDo,John - Doe - Temp - Client Client Ops,SomeValue
要添加名字和姓氏列，我使用以下代码：
<datalist id="mylist">
<option value="a">
<option value="b">
<option value="b">
</datalist>
<select class="someSelect">
<select class="someSelect">
$(".someSelect").html( $("#mylist").html() );
当我运行此代码时，所有名字值应为John，所有姓氏值应为Doe。但是，所有人的价值观都非常不同。
答案 0 :(得分：3)
你认为太复杂了。从Description字段的末尾删除附加信息以获取名称，然后修剪名称并将其拆分为名字和姓氏，然后将这些名称作为新属性添加到输入对象。
试试这个：
Import-Csv 'C:\path\to\input.csv' | ForEach-Object {
$rawname = $_.Description -replace '-[^-]*-[^-]*$'
$firstname, $lastname = $rawname.Trim() -split ' *[ \?\.,-] *'
$_ | Add-Member -Type NoteProperty -Name FirstName -Value $firstname
$_ | Add-Member -Type NoteProperty -Name LastName -Value $lastname
$_
} | Export-Csv 'C:\path\to\output.csv' -NoType