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JavaScript RegEx for div tags

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旧巷少年郎
旧巷少年郎 2020-12-17 00:26

I have a JavaScript variable which holds an HTML page and due to the setup I need to extract everything between

and
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10条回答
  • 佛祖请我去吃肉
    2020-12-17 01:07 
    var temp = document.createElement('DIV');
temp.innerHTML = YourVariable;
var liveArea;
for (var i = 0; i < temp.childNodes.length; i++)
{
   if (temp.childNodes[i].id == 'LiveArea')
   {
       liveArea = temp.childNodes[i];
       break;
   }
}
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  • [愿得一人]
    2020-12-17 01:07

    I found this article surfing on the web which take a DIV id and shows it on a new page to print it;

    function getPrint(print_area)
{
//Creating new page
var pp = window.open();
//Adding HTML opening tag with <HEAD> … </HEAD> portion 
pp.document.writeln('<HTML><HEAD><title>Print Preview</title>')
pp.document.writeln('<LINK href=Styles.css type="text/css" rel="stylesheet">')
pp.document.writeln('<LINK href=PrintStyle.css ' + 
                    'type="text/css" rel="stylesheet" media="print">')
pp.document.writeln('<base target="_self"></HEAD>')

//Adding Body Tag
pp.document.writeln('<body MS_POSITIONING="GridLayout" bottomMargin="0"');
pp.document.writeln(' leftMargin="0" topMargin="0" rightMargin="0">');
//Adding form Tag
pp.document.writeln('<form method="post">');

//Creating two buttons Print and Close within a HTML table
pp.document.writeln('<TABLE width=100%><TR><TD></TD></TR><TR><TD align=right>');
pp.document.writeln('<INPUT ID="PRINT" type="button" value="Print" ');
pp.document.writeln('onclick="javascript:location.reload(true);window.print();">');
pp.document.writeln('<INPUT ID="CLOSE" type="button" ' + 
                    'value="Close" onclick="window.close();">');
pp.document.writeln('</TD></TR><TR><TD></TD></TR></TABLE>');

//Writing print area of the calling page
pp.document.writeln(document.getElementById(print_area).innerHTML);
//Ending Tag of </form>, </body> and </HTML>
pp.document.writeln('</form></body></HTML>');

    }

    You will call this script sending the DIV id you want to get;

    btnGet.Attributes.Add("Onclick", "getPrint('YOURDIV');")

    It worked exactly as I wanted. Hope it helps

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  • 借酒劲吻你
    2020-12-17 01:08

    Use the following regular expression:

    <div id="[^"]*">(.*?)</div>
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  • 梦谈多话
    2020-12-17 01:10

    Sorry for late reply, if someone else stumbles on this problem here is my suggestion, assuming you have access to the page you are reading from source code.

    Add a HTML-comment like this

    <div id="LiveArea">
<!--LiveArea-->
Content here
<!--EndLiveArea-->
</div>

    Then match it with

    htmlVal.match(/<\!\-\-LiveArea"\-\->(.*?)<\!\-\-EndLiveArea"\-\->/);
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  • 执笔经年
    2020-12-17 01:12 
    var html = "<stuff><div id=\"LiveArea\">hello stackoverflow!</div></stuff>";

var matches = html.match(/<div\s+id="LiveArea">[\S\s]*?<\/div>/gi);
var matches = matches[0].replace(/(<\/?[^>]+>)/gi, ''); // Strip HTML tags?

alert(matches);
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  • 忘掉有多难
    2020-12-17 01:12

    This should do it:

    pattern = /<div id="LiveArea">(.*?)<\/div>/;
matches = your_html_var.match(pattern);
the_string = matches[0];

document.write(the_string);
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