Question

来自SEO插件的正则表达式/<img[^>]+/导致我的mapping plugin中断，因为它在我的JavaScript输出中添加了未转义的斜杠。

我想建议对此进行修复，其中<img> - 标记只有在title=""或<script>标记内时才会使用<script*...>进行增强。

澄清：

仅在代码blabla <img src="">blab上添加属性title=""
<script>blabla <img src=""> blabla</script>应保持原样
<script type="text/javascript">blabla <img src=""> blabla</script>也应保持原样

任何人都可以帮助正则表达式吗？我找到了(?! Expression)用于定义排除项的内容，但我不太确定如何使用它。

Answer 1

不要将regex用于此类问题。请改用DOMDocument。然后，仅将属性添加到适当的节点是微不足道的，并且您可以100％确定将来不会出现类似的问题。

Answer 2

我不知道它的正则表达式，但我知道一种解决方法

function add_titles_no_scripts($page)
{
    /* split up page at each start of an script */
    $parts = explode("<script", str_ireplace("<script", "<script", $page));

    /* remove the first part from the list, as its before first script */
    $first_part = array_shift();

    /* add titles to first parts as usal */
    $new_page = add_title($first_part);

    /* for all other parts */
    foreach($parts as $current_part)
    {
        /* split up part in 2 parts, before and after end of script */
        $sub_parts = explode("</script", str_ireplace("</script", "</script", $current_part), 2);

        /* make sure we have 2 parts */
        if(count($sub_parts) == 2)
        {
            /* add first part as it was inside the scripttags removed by explode */
            $new_page .= "<script" . $sub_parts[0] . "</script";

            /* adds 2nd part as usal */
            $new_page .= add_title($sub_parts[1]);
        }
        else
        {
            /* if only one part, we are inside an not ended script tag */
            $new_page .= "<script" . $sub_parts[0];
        }
    }

    /* return the new page */
    return $new_page;
}

正则表达式：添加标题=＆＃34;＆＃34;到<img/>标签但不是{script> -tags </script>之间的<img/>

2 个答案: