<?php

/*

 * MarkDoc
 * PHP MarkDown document manager
 * Hordé Nicolas
 * https://github.com/dahut87/MarkDoc
 * Release under GPLv3.0 license
 * Base on Pheditor "PHP file editor" By Hamid Samak Release under MIT license
 */

class ParsedownExtraplus extends ParsedownExtra
{

    public function line($text, $nonNestables=array())
    {
        $markup = '';

        # $excerpt is based on the first occurrence of a marker

        while ($excerpt = strpbrk($text, $this->inlineMarkerList))
        {
            $marker = $excerpt[0];

            $markerPosition = strpos($text, $marker);

            $Excerpt = array('text' => $excerpt, 'context' => $text);

            foreach ($this->InlineTypes[$marker] as $inlineType)
            {
                # check to see if the current inline type is nestable in the current context

                if ( ! empty($nonNestables) and in_array($inlineType, $nonNestables))
                {
                    continue;
                }

                $Inline = $this->{'inline'.$inlineType}($Excerpt);

                if ( ! isset($Inline))
                {
                    continue;
                }

		    if (isset($Inline['addon']))
                {
			  $markup .= $Inline['addon'];
                }

                # makes sure that the inline belongs to "our" marker

                if (isset($Inline['position']) and $Inline['position'] > $markerPosition)
                {
                    continue;
                }

                # sets a default inline position

                if ( ! isset($Inline['position']))
                {
                    $Inline['position'] = $markerPosition;
                }

                # cause the new element to 'inherit' our non nestables

                foreach ($nonNestables as $non_nestable)
                {
                    $Inline['element']['nonNestables'][] = $non_nestable;
                }

                # the text that comes before the inline
                $unmarkedText = substr($text, 0, $Inline['position']);

                # compile the unmarked text
                $markup .= $this->unmarkedText($unmarkedText);

                # compile the inline
                if (isset($Inline['element']))
                	$markup .= isset($Inline['markup']) ? $Inline['markup'] : $this->element($Inline['element']);

                # remove the examined text
                $text = substr($text, $Inline['position'] + $Inline['extent']);

                continue 2;
            }

            # the marker does not belong to an inline

            $unmarkedText = substr($text, 0, $markerPosition + 1);

            $markup .= $this->unmarkedText($unmarkedText);

            $text = substr($text, $markerPosition + 1);
        }

        $markup .= $this->unmarkedText($text);

        return $markup;
    }

    protected function inlineImage($Excerpt)
    {
        if ( ! isset($Excerpt['text'][1]) or $Excerpt['text'][1] !== '[')
        {
            return;
        }

        $Excerpt['text']= substr($Excerpt['text'], 1);

        $Link = $this->inlineLink($Excerpt);

        if ($Link === null)
        {
            return;
        }

        $Inline = array(
            'extent' => $Link['extent'] + 1,
            'element' => array(
                'name' => 'img',
                'attributes' => array(
                    'src' => $Link['element']['attributes']['href'],
                    'alt' => $Link['element']['text'],
                ),
            ),
        );

        $modifier = explode('?', $Inline['element']['attributes']['src'], 2)[1] ?? "";
        list($size,$align) = explode('-', $modifier, 2);
	  $width = $height = 0;
        if (preg_match('/^\d+x\d+$/', $size)) {
            list($width, $height) = explode('x', $size);
	  }
        if (preg_match('/^\d+$/', $size)) {
            $width = $size;
	  }
        if($width > 0) $Inline['element']['attributes']['width'] = $width;
        if($height > 0) $Inline['element']['attributes']['height'] = $height;
        if($align !="" ) $Inline['element']['attributes']['align'] = $align;

        $Inline['element']['attributes'] += $Link['element']['attributes'];

        unset($Inline['element']['attributes']['href']);

        return $Inline;
    }

    protected function inlineLink($Excerpt)
    {
        $Element = array(
            'name' => 'a',
            'handler' => 'line',
            'nonNestables' => array('Url', 'Link'),
            'text' => null,
            'attributes' => array(
                'href' => null,
                'title' => null,
            ),
        );

        $extent = 0;

        $remainder = $Excerpt['text'];

        if (preg_match('/\[((?:[^][]++|(?R))*+)\]/', $remainder, $matches))
        {
            $Element['text'] = $matches[1];

            $extent += strlen($matches[0]);

            $remainder = substr($remainder, $extent);
        }
        else
        {
            return;
        }

        if (preg_match('/^[(]\s*+((?:[^ ()]++|[(][^ )]+[)])++)(?:[ ]+("[^"]*"|\'[^\']*\'))?\s*[)]/', $remainder, $matches))
        {
            $Element['attributes']['href'] = $matches[1];

            if (isset($matches[2]))
            {
                $Element['attributes']['title'] = substr($matches[2], 1, - 1);
            }

            $extent += strlen($matches[0]);
        }
        else
        {
            if (preg_match('/^\s*\[(.*?)\]/', $remainder, $matches))
            {
                $definition = strlen($matches[1]) ? $matches[1] : $Element['text'];
                $definition = strtolower($definition);

                $extent += strlen($matches[0]);
            }
            else
            {
                $definition = strtolower($Element['text']);
            }

            if ( ! isset($this->DefinitionData['Reference'][$definition]))
            {
                return;
            }

            $Definition = $this->DefinitionData['Reference'][$definition];

            $Element['attributes']['href'] = $Definition['url'];
            $Element['attributes']['title'] = $Definition['title'];
        }
	  if ($Element['attributes']['href']=="tags")
	  {
		$addon='<div class="flexalign flexwrap">';
            $items=explode(" ",$Element['text']);
		foreach($items as $item)
		{
			$addon.='<span class="flexalign contained particularite"><a href="javascript:search(\''.$item.'\')">'.$item.'</a></span>';
		}
		$addon.='</div>';
            return array(
            'addon' => $addon,
            'extent' => $extent
            );
	  }

        return array(
            'extent' => $extent,
            'element' => $Element,
        );
    }
  
    
}