在 Powershell 中查找 Regex 是否不匹配

Question

我有一个 powershell 脚本，用于将包含多个条形码列表（以 6 个数字的字符串格式）和用户信息列表的 word 文档集合中的信息重新排序到一个电子表格和任何具有未知条形码的用户中进入另一个。我想添加一行以将任何没有条形码的用户也包含到未知条形码文件中，因为目前这些用户正在处理中丢失。

我有一个用于挑选条形码的正则表达式，我尝试检查 $matches 变量的 $matches -eq '' 或 $matches -eq $null，它要么不返回任何输出，要么返回表，分别。我还尝试检查我存储条形码的变量是否为 $null 或为空，结果相同。最后，我尝试编写另一个正则表达式来检查条形码输入的格式是否不匹配，该格式返回工作表上的每个用户。

以下是我正在使用的字段及其属性的示例：

#This is the field which would contain barcodes. Note that there are several instances
#of fields with this name in any given sheet. The text is stored in the Result property,
#and for this field it should include a listing of 6-digit numbers possibly including 
#letters to indicate the type of equipment the barcode represents. It will sometimes
#contain notes from whomever filled the sheet in.
Application     : Microsoft.Office.Interop.Word.ApplicationClass
Creator         : **REDACTED**
Parent          : Microsoft.Office.Interop.Word.DocumentClass
Type            : 70
Name            : Text10
EntryMacro      : 
ExitMacro       : 
OwnHelp         : False
OwnStatus       : False
HelpText        : 
StatusText      : 
Enabled         : True
Result          : EQUIPMENT WAS ALREADY MOVED
TextInput       : System.__ComObject
CheckBox        : System.__ComObject
DropDown        : System.__ComObject
Next            : System.__ComObject
Previous        : System.__ComObject
CalculateOnExit : False
Range           : System.__ComObject
------------------------------------------------
Application     : Microsoft.Office.Interop.Word.ApplicationClass
Creator         : **REDACTED**
Parent          : Microsoft.Office.Interop.Word.DocumentClass
Type            : 70
Name            : Text10
EntryMacro      : 
ExitMacro       : 
OwnHelp         : False
OwnStatus       : False
HelpText        : 
StatusText      : 
Enabled         : True
Result          : 
TextInput       : System.__ComObject
CheckBox        : System.__ComObject
DropDown        : System.__ComObject
Next            : System.__ComObject
Previous        : System.__ComObject
CalculateOnExit : False
Range           : System.__ComObject
-----------------------------------------------
Application     : Microsoft.Office.Interop.Word.ApplicationClass
Creator         : **REDACTED**
Parent          : Microsoft.Office.Interop.Word.DocumentClass
Type            : 70
Name            : Text10
EntryMacro      : 
ExitMacro       : 
OwnHelp         : False
OwnStatus       : False
HelpText        : 
StatusText      : 
Enabled         : True
Result          : L 123456, M 654321, 456789, D 987654
TextInput       : System.__ComObject
CheckBox        : System.__ComObject
DropDown        : System.__ComObject
Next            : System.__ComObject
Previous        : System.__ComObject
CalculateOnExit : False
Range           : System.__ComObject

这是我正在使用的代码（除了忽略没有条形码的用户之外，它工作得很好），包括我最近一次失败的挑选这些用户的尝试：

$word = New-Object -ComObject Word.Application
$word.Visible = $false
$word.DisplayAlerts = "wdAlertsNone"
$results = "Header1,Header2,Header3,Header4`n"
$exceptions = "Header2,Header3,Header4`n"
$list = get-childitem 'H:\directory'
foreach($file in $list){
    $path = "H:\directory\$($file.name)"
    $doc = $word.Documents.Open($path)
    $fields = $doc.FormFields
    foreach($field in $fields){
        if ($field.name -eq 'Text2'){
            $ucc = $field.Result.Replace(' / ',",")
            $ucc = $ucc.Replace('/',',')
        }
        elseif($field.name -eq 'Text5'){
            $loc = $field.Result
            }
            $loc = $loc.Trim()
        }
        elseif($field.name -eq 'Text10'){
            if($field.result -like '*UNK*'){
                $exceptions+=$loc + "," + $ucc+"`n"
            }
            #this is where I am storing the barcodes
            $bar = @([regex]::matches($field.Result,'\D*(\d{6})')|%{$_.groups[1].value})
            #this is my attempt at picking out blank codes
            if([regex]::Match($field.result,"*(\d[6])*") -ne $true){
                $exceptions+=$loc + "," + $ucc + "`n"
            }
            foreach($code in $bar){
                $results += $code + "," + $loc + "," + $ucc+"`n"
            }
        }
    }
}
$exceptions | out-file 'H:\directory\exceptions.csv' -Encoding ascii -Force
$results | out-file 'H:\directory\list.csv' -Encoding ascii -Force
$word.quit()
[void][System.Runtime.InteropServices.Marshal]::ReleaseComObject($word)

Answer 1

您可以通过管道传输到ForEach 循环的Where 语句并利用自动变量$Matches 来稍微重构一下。

            $bar = $field.Result | Where{$_ -match '\D*(\d{6})'} | ForEach{$Matches[1].value}
            If(!$bar -eq $null){
                foreach($code in $bar){
                    $results += $code + "," + $loc + "," + $ucc+"`n"
                }
            }Else{
                $exceptions+=$loc + "," + $ucc + "`n"
            }

编辑：我添加了一些对象来模拟您的示例数据，并为每个对象生成一些随机字母用于 $loc 和 $ucc 变量。然后我只是输出到屏幕而不是文件。这是我正在查看的内容：

$letters= 97..123|%{[char]$_}
$fields = @(
    [pscustomobject]@{'Name' = 'Text10';'Result' = @('asdf123456','dasrew345678','fdswer098765')},
    [pscustomobject]@{'Name' = 'Text10';'Result' = 'EQUIPMENT WAS ALREADY MOVED'},
    [pscustomobject]@{'Name' = 'Text10';'Result' = ''}
)
foreach($field in $fields){
    $loc = (Get-Random -Count 5 -InputObject $letters) -join ''
    $ucc = (Get-Random -Count 5 -InputObject $letters) -join ''
    if ($field.name -eq 'Text2'){
        $ucc = $field.Result.Replace(' / ',",")
        $ucc = $ucc.Replace('/',',')
    }
    elseif($field.name -eq 'Text5'){
        $loc = $field.Result
        #}
        $loc = $loc.Trim()
    }
    elseif($field.name -eq 'Text10'){
        if($field.result -like '*UNK*'){
            $exceptions+=$loc + "," + $ucc+"`n"
        }
        $bar = $field.Result | Where{ $_ -match '\D*(\d{6})' } | ForEach {$Matches[1]}
        If(!($bar -eq $null)){
            foreach($code in $bar){
                "results+=$code + `",`" + $loc + `",`" + $ucc"
            }
        }Else{
            "exceptions+=$loc + `",`" + $ucc"
        }
    }
}

输出 5 行。三个用于第一个对象，全部用于同一个“用户”，loc 和 ucc 使用相同的 5 个字符，然后每行一个条形码。然后它为没有条形码的记录再输出 2 行。

results+=123456 + "," + vpsjt + "," + lmsyv
results+=345678 + "," + vpsjt + "," + lmsyv
results+=098765 + "," + vpsjt + "," + lmsyv
exceptions+=hbptn + "," + ugydn
exceptions+=ygbop + "," + zy{mt