Javascript regexp modifiers

Question

This code gets html data and should replace all javascript content

$.ajax({
    url: url,
    success: function(data){
        data = data.replace(/<script.*?<\/sc/mg,'');
        alert(data);
    },
    dataType: 'html'
});

But there is stay javascript code in the data

.....</div><!-- end header -->
<div id="snapshot">
    <a href="?cat=<div style=&panel=center" id="leftNav" class="navlink"><i class="icon-previous icon-large white"></i></a>

    <a href="?cat=<div style=&panel=left" id="rightNav" class="navlink"><i class="icon-next icon-large white"></i></a>
<script type="text/javascript">
$(document).ready(function() {
    $('body').append('<div id="loaded_page"></div>');
    url = $('#leftNav').attr('href')
    $.ajax({
        url: url,
        success: function(data){
            data = data.replace(/<script.*?<\/sc/mgi,'');
            alert(data);
        },
        dataType: 'html'
    });

    return;
</script>
    ....................

So I need result to be

.....</div><!-- end header -->
<div id="snapshot">
    <a href="?cat=<div style=&panel=center" id="leftNav" class="navlink"><i class="icon-previous icon-large white"></i></a>

    <a href="?cat=<div style=&panel=left" id="rightNav" class="navlink"><i class="icon-next icon-large white"></i></a>

all javascript should be cut. Regexp data.replace(/<script.*?<\/sc/mg,'') replaces things which are in a one line only

regexp doesn't work, it should replace <script.*?<\/sc with '' — Oleksandr IY
– Oleksandr IY, Commented Mar 29, 2012 at 12:56

Jules · Accepted Answer · 2012-06-19 22:11:30Z

3

.* doesn't work in javascript over new lines. Instead use [\s\S]*

Here's the regex:

/<script[\s\S]*?</script>/i

answered Jun 19, 2012 at 22:11

Jules

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Comments

codef0rmer · Accepted Answer · 2012-03-29 13:32:02Z

0

This is what you are looking for:

var html = "<html><head><script src='http://jquery.js'></script>\n<script src='http://jquery.js'></script></head><body>I m legend</body></html>";
html.replace(/<script.*?<\/script>/gi,'');

This will return :

"<html><head>
</head><body>I m legend</body></html>"

answered Mar 29, 2012 at 13:32

codef0rmer

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Comments

caw · Accepted Answer · 2014-08-09 02:40:59Z

0

[T]o match a pattern across multiple lines the character set [^] can be used (if you don't mean an old version of IE, of course), it will match any character including newlines.

Source: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp

This means you should use the negative empty selection [^] instead of the dot . to match "all characters".

answered Aug 9, 2014 at 2:40

caw

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