source: branches/0.4/web/addons/job_monarch/dwoo/plugins/builtin/blocks/textformat.php @ 755

<?php

/**
 * Formats a string to the given format, you can wrap lines at a certain
 * length and indent them
 * <pre>
 *  * wrap : maximum line length
 *  * wrap_char : the character(s) to use to break the line
 *  * wrap_cut : if true, the words that are longer than $wrap are cut instead of overflowing
 *  * indent : amount of $indent_char to insert before every line
 *  * indent_char : character(s) to insert before every line
 *  * indent_first : amount of additional $indent_char to insert before the first line of each paragraphs
 *  * style : some predefined formatting styles that set up every required variables, can be "email" or "html"
 *  * assign : if set, the formatted text is assigned to that variable instead of being output
 * </pre>
 * This software is provided 'as-is', without any express or implied warranty.
 * In no event will the authors be held liable for any damages arising from the use of this software.
 *
 * @author     Jordi Boggiano <j.boggiano@seld.be>
 * @copyright  Copyright (c) 2008, Jordi Boggiano
 * @license    http://dwoo.org/LICENSE   Modified BSD License
 * @link       http://dwoo.org/
 * @version    1.0.0
 * @date       2008-10-23
 * @package    Dwoo
 */
class Dwoo_Plugin_textformat extends Dwoo_Block_Plugin
{
        protected $wrap;
        protected $wrapChar;
        protected $wrapCut;
        protected $indent;
        protected $indChar;
        protected $indFirst;
        protected $assign;

        public function init($wrap=80, $wrap_char="\r\n", $wrap_cut=false, $indent=0, $indent_char=" ", $indent_first=0, $style="", $assign="")
        {
                if ($indent_char === 'tab') {
                        $indent_char = "\t";
                }

                switch($style) {

                case 'email':
                        $wrap = 72;
                        $indent_first = 0;
                        break;
                case 'html':
                        $wrap_char = '<br />';
                        $indent_char = $indent_char == "\t" ? '&nbsp;&nbsp;&nbsp;&nbsp;':'&nbsp;';
                        break;

                }

                $this->wrap = (int) $wrap;
                $this->wrapChar = (string) $wrap_char;
                $this->wrapCut = (bool) $wrap_cut;
                $this->indent = (int) $indent;
                $this->indChar = (string) $indent_char;
                $this->indFirst = (int) $indent_first + $this->indent;
                $this->assign = (string) $assign;
        }

        public function process()
        {
                // gets paragraphs
                $pgs = explode("\n", str_replace(array("\r\n", "\r"), "\n", $this->buffer));

                while (list($i,) = each($pgs)) {
                        if (empty($pgs[$i])) {
                                continue;
                        }

                        // removes line breaks and extensive white space
                        $pgs[$i] = preg_replace(array('#\s+#', '#^\s*(.+?)\s*$#m'), array(' ', '$1'), str_replace("\n", '', $pgs[$i]));

                        // wordwraps + indents lines
                        $pgs[$i] = str_repeat($this->indChar, $this->indFirst) .
                                        wordwrap(
                                                        $pgs[$i],
                                                        max($this->wrap - $this->indent, 1),
                                                        $this->wrapChar . str_repeat($this->indChar, $this->indent),
                                                        $this->wrapCut
                                        );
                }

                if ($this->assign !== '') {
                        $this->dwoo->assignInScope(implode($this->wrapChar . $this->wrapChar, $pgs), $this->assign);
                } else {
                        return implode($this->wrapChar . $this->wrapChar, $pgs);
                }
        }
}