<?php

Str::macro('sentences', function($value, $sentences = 2, $end = '...')
{
    preg_match('/(.+?(?:(?<![\s.]\p{Lu})[.!?])){1,'.$sentences.'}/u', $value, $matches);

    if (! isset($matches[0]) || static::length($value) === static::length($matches[0])) {
        return $value;
    }

    return rtrim($matches[0]).$end;
});

Str::macro('paragraphs', function($value, $paragraphs = 3, $end = '...')
{
    preg_match('/(.+?(?:\s{2,})|\n*){1,'.$paragraphs.'}/um', $value, $matches);

    if (! isset($matches[0]) || static::length($value) === static::length($matches[0])) {
        return $value;
    }

    return rtrim($matches[0]).$end;
});