正则表达式匹配patern之前和之后的下划线

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我在kaltura中有一个文件名约定{referenceId} _ {flavor name} .mp4。或者如果你熟悉kaltura然后告诉我slugRegex我可以使用这个命名约定，将支持预编码的文件摄入正则表达式匹配patern之前和之后的下划线

我必须从中提取referenceId和文件名。

我使用

/(?P)_(?P)[.]\w{3,}/

来源

2012-08-01 Abhimanyu Singh

var filename = "referenceId_flavor-name.mp4"; 
var parts = filename.match(/([^_]+)_([^.]+)\.(\w{3})/i); 
// parts is an array with 4 elements 
// ["referenceId_flavor-name.mp4", "referenceId", "flavor-name", "mp4];

来源

2012-08-01 13:53:33

其实我已经在炎ABC文件名abc_1000.mp4是参考Id和1000是使用香精name.i'm（ΔP）_（ΔP）[] \ w {3，} /。 referenceId是组名，所以flavorName是。 – 2012-08-01 14:03:46

var file = 'refID_name.mp4', 
    parts = file.match(/^([^_]+)_(.+)\.mp4/, file);

返回数组：

[ 
    'refID_name.mp4', //the whole match is always match 0 
    'refID', //sub-match 1 
    'name' //sub-match 2 
]

来源

2012-08-01 13:58:45 Utkanos

我通过删除正则表达式来解决问题。 kaltura将其作为默认值 – 2012-09-13 12:30:05

/** 
* Parse file name according to defined slugRegex and set the extracted parsedSlug and parsedFlavor. 
* The following expressions are currently recognized and used: 
* - (?P<referenceId>\w+) - will be used as the drop folder file's parsed slug. 
* - (?P<flavorName>\w+) - will be used as the drop folder file's parsed flavor. 
* - (?P<userId>\[\w\@\.]+) - will be used as the drop folder file entry's parsed user id. 
* @return bool true if file name matches the slugRegex or false otherwise 
*/ 
private function parseRegex(DropFolderContentFileHandlerConfig $fileHandlerConfig, $fileName, &$parsedSlug, &$parsedFlavor, &$parsedUserId) 
{ 
    $matches = null; 
    $slugRegex = $fileHandlerConfig->getSlugRegex(); 
    if(is_null($slugRegex) || empty($slugRegex)) 
    { 
     $slugRegex = self::DEFAULT_SLUG_REGEX; 
    } 
    $matchFound = preg_match($slugRegex, $fileName, $matches); 
    KalturaLog::debug('slug regex: ' . $slugRegex . ' file name:' . $fileName); 
    if ($matchFound) 
    { 
     $parsedSlug = isset($matches[self::REFERENCE_ID_WILDCARD]) ? $matches[self::REFERENCE_ID_WILDCARD] : null; 
     $parsedFlavor = isset($matches[self::FLAVOR_NAME_WILDCARD]) ? $matches[self::FLAVOR_NAME_WILDCARD] : null; 
     $parsedUserId = isset($matches[self::USER_ID_WILDCARD]) ? $matches[self::USER_ID_WILDCARD] : null; 
     KalturaLog::debug('Parsed slug ['.$parsedSlug.'], Parsed flavor ['.$parsedFlavor.'], parsed user id ['. $parsedUserId .']'); 
    } 
    if(!$parsedSlug) 
     $matchFound = false; 
    return $matchFound; 
}

是与正则表达式交易的代码。我用/(?P<referenceId>.+)_(?P<flavorName>.+)[.]\w{3,}/并按照本教程enter link description here

来源

2015-08-19 14:34:51

正则表达式匹配patern之前和之后的下划线

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