spacer.php

См. документацию.

<?php
 
class CSpacer
{
    var $iMaxChar;
    var $symbol;
 
    function __construct($iMaxChar, $symbol)
    {
        $this->iMaxChar = $iMaxChar;
        $this->symbol = $symbol;
    }
 
    function InsertSpaces($string)
    {
        return preg_replace_callback('/(^|>)([^<>]+)(<|$)/', array($this, "__InsertSpacesCallback"), $string);
    }
 
    function __InsertSpacesCallback($arMatch)
    {
        return $arMatch[1].preg_replace("/([^() \\n\\r\\t%!?{}\\][-]{".$this->iMaxChar."})/u","\\1".$this->symbol, $arMatch[2]).$arMatch[3];
    }
}