EM Highlight

Looks for given words or expressions in a text and highlights them with <em class='highlight'> TERM </em>

Usage

var highlight = require('em-highlight');

var text   = "We cannot rule this rule out on other rules and there is no stopping.";
var lookup = [
    "rule",
    "rule out"
];

var result = highlight.find(text, lookup);

// "We cannot <em class='highlight'> rule </em> this
//  <em class='highlight'> <em class='highlight'> rule </em> out </em> on other
//  rules and there is no stopping."

Notes

• Allows case insensitive matching.
• Not extensively tested with very large texts.
• Nested lookup terms are highlighted again. You could use css opacity to display this.