Regex to detect JavaScript

Question

Does someone know how to check if a code begins by <script> and end by </script>. It's just a means to check if code is ok to be inserted in HTML to avoid breaking the site.

So far I've tried to look if <script> is there but I need to check both opening and closing.

Any help would be cool :)

It's the easiest regex to write but it won't check your string is valid. Parse the HTML for that or do additional check. — Denys Séguret, Sep 17 '13 at 13:03
Whoever attempts to answer this question, please take into account that `.....` is invalid. — georg, Sep 17 '13 at 13:11
I have to check, I do not want my users to enter something bad and then layout is broken — calo, Sep 17 '13 at 13:17

score 5 · Accepted Answer · answered Sep 17 '13 at 13:20

5

You could use this..

<script[^>]*>([\s\S]*?)<\/script>

answered Sep 17 '13 at 13:20

hwnd

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Almost correct... except that this doesn't handle double closing tags. – georg Sep 17 '13 at 13:40
@JMau: You didn’t surround it with `/`. Also, what is this for? – Ry- Sep 27 '13 at 14:31

Regex to detect JavaScript

1 Answers1