Parse HTML file with NodeJS

Question

I have a short html file loaded as a string in Nodejs.

<html>
<head>
    <title>NodeJS</title>
    <link href="/style/application.css" rel="stylesheet" type="text/css">
    <script type="text/javascript" src="/scripts/script.js"></script>
    <link rel="shortcut icon" href="/favicon.ico">
  </head>
<body>
<center>
<h1><a href="#"><% title %></a></h1><br>
</center>
</body>
</html>

I need to get an array of every string between <% and %>. In this case only title.

Tried some javascript string functions and regex but can't find anything...

Maybe finding all positions of <% %> and programatically slice the strings?

Eugene Naydenov · Accepted Answer · 2012-09-22 23:00:49Z

2

Really regular expressions could do the trick for you:

var str = document.getElementById('template').innerHTML,
    re = /<%\s*(.*?)\s*%>/g,
    matches,
    results = [];

while((matches = re.exec(str)) !== null) {
    results.push(matches[1]);
}

console.log(results);

DEMO

edited Sep 22, 2012 at 23:00

answered Sep 22, 2012 at 22:54

Eugene Naydenov

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1 Comment

jviotti Over a year ago

worked flawless. I have to get more into RegEx. Lot of potencial

TMan · Accepted Answer · 2012-09-22 22:42:01Z

1

If you call .split("%") on the string in question then every odd index in the array that is returned should contain your desired string as long as you don't have any instances of % on the page.

Another way to go about doing things would be to first call string.split("<%"), and then call string.split("%>") on the odd indexes if you do happen to have instances where % is an otherwise used character in your page.

answered Sep 22, 2012 at 22:42

TMan

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