How do I use regex modifiers in jquery function? [duplicate]

Question

I have this html content

<!DOCTYPE html>
<html>
<head>
</head>
<body>
<center><img style="margin-left: auto; display: block; margin-right: auto;" src="../img/escudocaba.png" alt="#" width="470" height="90" /></center>
<h1>Hoddda</h1>
</body>
</html>

I need to extract the content of the body without including the body tags. I have made this regex that match perfectly:

/<body[^>]*>(.*?)<\/body>/is

as you can see in this website

https://regex101.com/

But when I use it

var bodyHtml=$editor.val().match( /<body[^>]*>(.*?)<\/body>/is);

I get no results.......Also tried a similar regex which did not work out in the end with the same format and without modifiers and it was matching

   var bodyHtml=$editor.val().match(/(?:.(?!<\s*body[^>]*>))*\>.+/);

for example returned

<center><img style="margin-left: auto; display: block; margin-right: auto;" src="../img/escudocaba.png" alt="#" width="470" height="90" /></center>

How can I do in this case to use regex modifiers with this jquery function?. Thanks

You can simply do : $('body').html() to get the contents of the body without the body tag — DinoMyte
– DinoMyte, Commented Feb 10, 2016 at 18:39
Oh yeah, and this: stackoverflow.com/a/1732454/1232175, just use $('body').html(); as Dino suggested. — faino
– faino, Commented Feb 10, 2016 at 18:55
that's no good...I need the body of the editor canvas, not the body of the whole page — JAF
– JAF, Commented Feb 11, 2016 at 13:48
The html structure I was talking(the one which is inside a textarea with id="#plantillaEditor") about is inside the main html of the whole page...... — JAF
– JAF, Commented Feb 11, 2016 at 13:57

score 1 · Accepted Answer · 2016-02-11 16:32:53Z

1

In javascript flavour of regex the . doesn't match new lines.

To solve that you can use [^] or [\s\S] or [\d\D] or (?:.|\n) ...

Try this code:

var bodyHtml = $editor.val().match(/<body[^>]*>([\s\S]*?)(<\/body>|$)/i)[1];

edited Feb 11, 2016 at 16:32

answered Feb 10, 2016 at 18:49

user4227915

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9 Comments

JAF Over a year ago

this doesn't work, it returns "undifined"

user4227915 Over a year ago

@JAF. I suspect just $editor.find('body').html() should work

JAF Over a year ago

It's not working my friend.....If I put console.log(($('textarea').val())); I get <!DOCTYPE html> <html> <head> </head> <body> <center><img style="margin-left: auto; display: block; margin-right: auto;" src="../img/escudocaba.png" alt="#" width="470" height="90" /></center> <h1>Hodddaaa</h1> </body> </html>

user4227915 Over a year ago

@JAF. Last try: $($editor.val()).find('body').html(). Otherwise, just change the . in the regex by one of the options I said in my answer.

JAF Over a year ago

this is the correct answer, thank you very much my friend

|

Community · Accepted Answer · 2017-05-23 12:23:56Z

0

The s-modifier doesn't exist in JS. try using [\s\S] instead of the dot, as suggested here: Javascript regex multiline flag doesn't work

like this:

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

edited May 23, 2017 at 12:23

CommunityBot

11 silver badge

answered Feb 10, 2016 at 18:43

Neutrosider

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1 Comment

Wiktor Stribiżew Over a year ago

This regex will fail if the HTML doc is long and there is no closing </body>.

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