CRAFT:Flux

flux.twig

{% extends "_abstract/master.twig" %}
{% set bodyId = 'flux' %}

{% block content %}
    {% set url = 'http://www.selvinortiz.com' %}
    {%
        set flux =  craft.flux
                    .startOfLine()
                    .find('http')
                    .maybe('s')
                    .then('://')
                    .maybe('www.')
                    .anythingBut('.')
                    .either('.in', '.co', '.com')
                    .ignoreCase()
                    .endOfLine()
    %}

    <pre>
        {{ flux.match( url ) ? 'matched' : 'unmached' }} {# matched #}
        {{ flux.replace( 'https://$5$6', url ) }} {# https://selvinortiz.com #}
        {{ flux }} {# /^(http)(s)?(\:\/\/)(www\.)?([^\.]*)(.in|.co|.com)$/i #}
    </pre>

{% endblock %}