如何从标题中获取电视节目集和季号

Question

我正在尝试从标题中获取 tvhsow 季节和剧集编号

我尝试使用以下代码，但它也将像 xxxxe 3 这样的标题选为第 3 集

$episode = $title | Select-String -Pattern "E(\d+)", "E (\d+)", "Episode (\d+)" | % {$_.Matches.Groups[1].Value}
$season = $title | Select-String -Pattern "S(\d+)", "S (\d+)", "Season (\d+)" | % {$_.Matches.Groups[1].Value} 

我如何确保我可以从这些格式中选择季号和剧集。

• xxx S01E01
• xxxe 1 S01E01
• xxx S01 E01
• xxx 01x01
• xxx 季 01 集 01

如果剧名中没有上述季节或剧集编号，那么我只想不返回任何内容，例如如果节目被命名为“xxxxxE 1”

Answer 1

假设如下

1. 季节和剧集将始终为 2 个（或更多）数字
2. 季节和剧集将始终位于文件名的末尾。

我建议使用正则表达式模式锚定到名称的末尾。从那里我们在句点（文件扩展名）之前考虑 0 个或更多字符，1 个文字句点（用于扩展名），在句点和剧集之间有 0 个或更多字符，在季节和剧集之间考虑 0 或更多字符。

$examples = @'
xxx S01E02.avi
xxxe 1 S02E03.mp3
xxx S03 E04.mov
xxx 04x05.png
xxx Season 05 Episode 06.wav
'@ -split [environment]::NewLine

$examples | ForEach-Object {
    if($_ -match '.+(\d{2,}).*(\d{2,}).*\..*$'){
        "Season: {0}  Episode: {1}" -f $matches.1,$matches.2
    }
}

这将输出

Season: 01  Episode: 02
Season: 02  Episode: 03
Season: 03  Episode: 04
Season: 04  Episode: 05
Season: 05  Episode: 06

您没有展示如何填充 $title，因此假定它只是一个字符串。但是，如果您想应用于文件对象，您有几个选择。

我们可以不使用正则表达式模式并使用 Name 属性。

$videolist = Get-Childitem -Path path\to\movies -Filter *.whatever

foreach($video in $videolist){
    if($video.Name -match '.+(\d{2,}).*(\d{2,}).*\..*$'){
        "Season: {0}  Episode: {1}" -f $matches.1,$matches.2
    }
}

或

我们可以使用 BaseName 属性并稍微调整正则表达式。

$videolist = Get-Childitem -Path path\to\movies -Filter *.whatever

foreach($video in $videolist){
    if($video.BaseName -match '.+(\d{2,}).*(\d{2,}).*$'){
        "Season: {0}  Episode: {1}" -f $matches.1,$matches.2
    }
}

Answer 2

您可以构造一个正则表达式字符串来解析季节和剧集编号，如下所示：

$examples = 'xxx S01E01','xxxe 1 S01E03','xxx S06 E01','xxx 01x01','xxx Season 01 Episode 02'

foreach ($title in $examples) {
    if ($title -match '(?:(?:S(?:eason)?)?\s*(\d+)[\sx]*)(?:(?:E(?:pisode)?)?\s*(\d+))') {
        $season  = [int]$matches[1]
        $episode = [int]$matches[2]

        # just to display the output:
        [PsCustomObject]@{
            Title   = $title
            Season  = $season
            Episode = $episode
        }
    }
}

输出：

Title                    Season Episode
-----                    ------ -------
xxx S01E01                    1       1
xxxe 1 S01E03                 1       3
xxx S06 E01                   6       1
xxx 01x01                     1       1
xxx Season 01 Episode 02      1       2

正则表达式详细信息：

(?:                # Match the regular expression below
   (?:             # Match the regular expression below
      S            # Match the character “S” literally
      (?:          # Match the regular expression below
         eason     # Match the characters “eason” literally
      )?           # Between zero and one times, as many times as possible, giving back as needed (greedy)
   )?              # Between zero and one times, as many times as possible, giving back as needed (greedy)
   \s              # Match a single character that is a “whitespace character” (spaces, tabs, line breaks, etc.)
      *            # Between zero and unlimited times, as many times as possible, giving back as needed (greedy)
   (               # Match the regular expression below and capture its match into backreference number 1
      \d           # Match a single digit 0..9
         +         # Between one and unlimited times, as many times as possible, giving back as needed (greedy)
   )
   [\sx]           # Match a single character present in the list below
                   # A whitespace character (spaces, tabs, line breaks, etc.)
                   # The character “x”
      ?            # Between zero and one times, as many times as possible, giving back as needed (greedy)
)
(?:                # Match the regular expression below
   (?:             # Match the regular expression below
      E            # Match the character “E” literally
      (?:          # Match the regular expression below
         pisode    # Match the characters “pisode” literally
      )?           # Between zero and one times, as many times as possible, giving back as needed (greedy)
   )?              # Between zero and one times, as many times as possible, giving back as needed (greedy)
   \s              # Match a single character that is a “whitespace character” (spaces, tabs, line breaks, etc.)
      *            # Between zero and unlimited times, as many times as possible, giving back as needed (greedy)
   (               # Match the regular expression below and capture its match into backreference number 2
      \d           # Match a single digit 0..9
         +         # Between one and unlimited times, as many times as possible, giving back as needed (greedy)
   )
)

^{我已经更改了您的一些示例，以便更清楚地显示正确找到的数字}