XoopsModules\Mylinks\Text_Diff_Renderer_inline

Complexity

Total Complexity

16

Size/Duplication

Total Lines	178
Duplicated Lines	0 %

Importance

Changes

0

8 Methods

Rating	Name	Duplication	Size	Complexity
A	_blockHeader()	0	3	1
A	_changed()	0	33	6
A	_startBlock()	0	3	1
A	_deleted()	0	7	1
A	_encode()	0	3	1
A	_lines()	0	11	3
A	_added()	0	7	1
A	_splitOnWords()	0	15	2

<?php

namespace XoopsModules\Mylinks;

/**
 * "Inline" diff renderer.
 *
 * This class renders diffs in the Wiki-style "inline" format.
 *
 * $Horde: framework/Text_Diff/Diff/Renderer/inline.php,v 1.14 2005/07/22 19:45:15 chuck Exp $
 *
 * @author  Ciprian Popovici
 * @package Text_Diff
 */
class Text_Diff_Renderer_inline extends Text_Diff_Renderer
{
    /**
     * Number of leading context "lines" to preserve.
     */
    public $_leading_context_lines = 10000;

    /**
     * Number of trailing context "lines" to preserve.
     */
    public $_trailing_context_lines = 10000;

    /**
     * Prefix for inserted text.
     */
    public $_ins_prefix = '<ins>';

    /**
     * Suffix for inserted text.
     */
    public $_ins_suffix = '</ins>';

    /**
     * Prefix for deleted text.
     */
    public $_del_prefix = '<del>';

    /**
     * Suffix for deleted text.
     */
    public $_del_suffix = '</del>';

    /**
     * Header for each change block.
     */
    public $_block_header = '';

    /**
     * What are we currently splitting on? Used to recurse to show word-level
     * changes.
     */
    public $_split_level = 'lines';

    /**
     * @param $xbeg
     * @param $xlen
     * @param $ybeg
     * @param $ylen
     * @return string
     */
    public function _blockHeader($xbeg, $xlen, $ybeg, $ylen)
    {
        return $this->_block_header;
    }

    /**
     * @param $header
     * @return mixed
     */
    public function _startBlock($header)
    {
        return $header;
    }

    /**
     * @param         $lines
     * @param string  $prefix
     * @param bool    $encode
     * @return string
     */
    public function _lines($lines, $prefix = ' ', $encode = true)
    {
        if ($encode) {
            array_walk($lines, [&$this, '_encode']);
        }

        if ('words' === $this->_split_level) {
            return implode('', $lines);
        }

        return implode("\n", $lines) . "\n";
    }

    /**
     * @param $lines
     * @return string
     */
    public function _added($lines)
    {
        array_walk($lines, [&$this, '_encode']);
        $lines[0]                 = $this->_ins_prefix . $lines[0];
        $lines[count($lines) - 1] .= $this->_ins_suffix;

        return $this->_lines($lines, ' ', false);
    }

    /**
     * @param         $lines
     * @param bool    $words
     * @return string
     */
    public function _deleted($lines, $words = false)

The parameter $words is not used and could be removed.

    {
        array_walk($lines, [&$this, '_encode']);
        $lines[0]                 = $this->_del_prefix . $lines[0];
        $lines[count($lines) - 1] .= $this->_del_suffix;

        return $this->_lines($lines, ' ', false);
    }

    /**
     * @param $orig
     * @param $final
     * @return string
     */
    public function _changed($orig, $final)
    {
        /* If we've already split on words, don't try to do so again - just
         * display. */
        if ('words' === $this->_split_level) {
            $prefix = '';
            while (false !== $orig[0] && false !== $final[0] && ' ' === mb_substr($orig[0], 0, 1)
                   && ' ' === mb_substr($final[0], 0, 1)) {
                $prefix   .= mb_substr($orig[0], 0, 1);
                $orig[0]  = mb_substr($orig[0], 1);
                $final[0] = mb_substr($final[0], 1);
            }

            return $prefix . $this->_deleted($orig) . $this->_added($final);
        }

        $text1 = implode("\n", $orig);
        $text2 = implode("\n", $final);

        /* Non-printing newline marker. */
        $nl = "\0";

        /* We want to split on word boundaries, but we need to
         * preserve whitespace as well. Therefore we split on words,
         * but include all blocks of whitespace in the wordlist. */
        $diff = new Text_Diff($this->_splitOnWords($text1, $nl), $this->_splitOnWords($text2, $nl));

        /* Get the diff in inline format. */
        $renderer = new self(array_merge($this->getParams(), ['split_level' => 'words']));

        /* Run the diff and get the output. */

        return str_replace($nl, "\n", $renderer->render($diff)) . "\n";
    }

    /**
     * @param         $string
     * @param string  $newlineEscape
     * @return array
     */
    public function _splitOnWords($string, $newlineEscape = "\n")
    {
        $words  = [];
        $length = mb_strlen($string);
        $pos    = 0;

        while ($pos < $length) {
            // Eat a word with any preceding whitespace.
            $spaces  = strspn(mb_substr($string, $pos), " \n");
            $nextpos = strcspn(mb_substr($string, $pos + $spaces), " \n");
            $words[] = str_replace("\n", $newlineEscape, mb_substr($string, $pos, $spaces + $nextpos));
            $pos     += $spaces + $nextpos;
        }

        return $words;
    }

    /**
     * @param $string
     */
    public function _encode(&$string)
    {
        $string = htmlspecialchars($string, ENT_QUOTES | ENT_HTML5);
    }
}