正则表达式获取 <script> 标签

Question

我试图定位脚本内具有“ "@type": "NewsArticle" " 的整个脚本标记。

像这样的东西：

<script type="application\/ld\+json">[^\{]*?{(.*?)\}[^\}]*?<\/script>

我可以使用上面的正则表达式来定位最上面的脚本标签。但我正在寻找 newsArticle JSON 信息，在本例中是第二个，但在某些页面中有 4 个以上 application/ld+json 标签，但 " "@type": "NewsArticle" "始终存在无论如何，在每一页中。所以我正在寻找一个可以针对该特定脚本的脚本。

感谢帮助。

<script type="application/ld+json">

{

    "@context": "http://schema.org",

    "@type": "Organization",

    "@id": "https://www.givemesport.com/#gms",

    "name": "GiveMeSport",

    "url": "https://www.givemesport.com",

    "logo": {

        "@type": "ImageObject",

        "url": "https://gmsrp.cachefly.net/v4/images/logo-gms-black.png"

    },

    "sameAs":[

        "https://www.facebook.com/GiveMeSport",

        "https://www.instagram.com/givemesport",

        "https://twitter.com/GiveMeSport",

        "https://www.youtube.com/user/GiveMeSport"

    ]

}

</script>

    <script type="application/ld+json">

    {

    "@context": "http://schema.org",

    "@type": "NewsArticle",

    "mainEntityOfPage": "https://www.givemesport.com/1612447-man-uniteds-scott-mctominay-delighted-fans-with-reaction-after-third-goal-vs-rb-leipzig",

    "url": "https://www.givemesport.com/1612447-man-uniteds-scott-mctominay-delighted-fans-with-reaction-after-third-goal-vs-rb-leipzig",

    "headline": "Man United's Scott McTominay delighted fans with reaction after third goal vs RB Leipzig",

    "datePublished": "2020-10-30T21:52:48.3510000Z",

    "dateModified": "2020-10-30T21:52:48.3510000Z",

    "description": "Man United's Scott McTominay delighted fans with reaction after third goal vs RB Leipzig",

    "articleSection": "Football",

    "keywords": ["Football","Manchester United","Marcus Rashford","RB Leipzig","Scott McTominay","UEFA Champions"],

    "creator": ["Scott Wilson"],

    "thumbnailUrl": "https://gmsrp.cachefly.net/images/20/10/30/03a426c8204af5c8d02282afaeed6189/144.jpg",

    "author": {

    "@type": "Person",

    "name": "Scott Wilson",

    "sameAs": "https://www.givemesport.com/scott-wilson-1"

    },

Answer 1

很遗憾得知您不想遵循最佳实践，使用正则表达式解析 HTML 充满了问题。但是，如果您想要快速而肮脏的解决方法，请使用<script type="application\/ld\+json">((?:(?!<\/?script)[\w\W])*?"@type":\s*"NewsArticle"[\w\W]*?)<\/script>解释--------------------------------------------------------------------------------  <script                  '<script type="application'  type="application--------------------------------------------------------------------------------  \/                       '/'--------------------------------------------------------------------------------  ld                       'ld'--------------------------------------------------------------------------------  \+                       '+'--------------------------------------------------------------------------------  json">                   'json">'--------------------------------------------------------------------------------  (                        group and capture to \1:--------------------------------------------------------------------------------    (?:                      group, but do not capture (0 or more                             times (matching the least amount                             possible)):--------------------------------------------------------------------------------      (?!                      look ahead to see if there is not:--------------------------------------------------------------------------------        <                        '<'--------------------------------------------------------------------------------        \/?                      '/' (optional (matching the most                                 amount possible))--------------------------------------------------------------------------------        script                   'script'--------------------------------------------------------------------------------      )                        end of look-ahead--------------------------------------------------------------------------------      [\w\W]                   any character of: word characters (a-                               z, A-Z, 0-9, _), non-word characters                               (all but a-z, A-Z, 0-9, _)--------------------------------------------------------------------------------    )*?                      end of grouping--------------------------------------------------------------------------------    "@type":                 '"@type":'--------------------------------------------------------------------------------    \s*                      whitespace (\n, \r, \t, \f, and " ") (0                             or more times (matching the most amount                             possible))--------------------------------------------------------------------------------    "NewsArticle"            '"NewsArticle"'--------------------------------------------------------------------------------    [\w\W]*?                 any character of: word characters (a-z,                             A-Z, 0-9, _), non-word characters (all                             but a-z, A-Z, 0-9, _) (0 or more times                             (matching the least amount possible))--------------------------------------------------------------------------------  )                        end of \1--------------------------------------------------------------------------------  <                        '<'--------------------------------------------------------------------------------  \/                       '/'--------------------------------------------------------------------------------  script>                  'script>'