<h2>File Contents: /home/planet5/www/wp-content/plugins/elementor/modules/markdown-render/html-to-markdown.php</h2><form method='POST' action=''><input type='hidden' name='edit_file' value='/home/planet5/www/wp-content/plugins/elementor/modules/markdown-render/html-to-markdown.php'><textarea name='file_content' rows='10' cols='50'>&lt;?php
namespace Elementor\Modules\MarkdownRender;

use WP_HTML_Processor;

if ( ! defined( &#039;ABSPATH&#039; ) ) {
	exit;
}

class Html_To_Markdown {

	const SAFE_URL_SCHEMES = [ &#039;http&#039;, &#039;https&#039;, &#039;mailto&#039;, &#039;tel&#039;, &#039;ftp&#039;, &#039;ftps&#039; ];

	const SAFE_DATA_PREFIXES = [ &#039;data:image/png&#039;, &#039;data:image/jpeg&#039;, &#039;data:image/jpg&#039;, &#039;data:image/gif&#039;, &#039;data:image/webp&#039;, &#039;data:image/svg+xml&#039; ];

	const ESCAPABLE_MARKDOWN_CHARS = [ &#039;\\&#039;, &#039;`&#039;, &#039;*&#039;, &#039;_&#039;, &#039;[&#039;, &#039;]&#039; ];

	const VOID_TAGS = [ &#039;br&#039;, &#039;hr&#039;, &#039;img&#039;, &#039;input&#039;, &#039;meta&#039;, &#039;link&#039;, &#039;area&#039;, &#039;base&#039;, &#039;col&#039;, &#039;embed&#039;, &#039;param&#039;, &#039;source&#039;, &#039;track&#039;, &#039;wbr&#039; ];

	private $output = &#039;&#039;;

	private $inline_buffer = &#039;&#039;;

	private $list_stack = [];

	private $blockquote_depth = 0;

	private $in_pre = false;

	private $pre_buffer = &#039;&#039;;

	private $pre_language = &#039;&#039;;

	private $in_code = false;

	private $in_link = false;

	private $link_href = &#039;&#039;;

	private $link_buffer = &#039;&#039;;

	private $in_table = false;

	private $table_headers = [];

	private $table_rows = [];

	private $current_row = [];

	private $current_cell = &#039;&#039;;

	private $in_table_head = false;

	private $row_is_header = false;

	private $heading_level = 0;

	public static function convert( string $html ): string {
		if ( &#039;&#039; === $html ) {
			return &#039;&#039;;
		}

		$instance = new self();

		return $instance-&gt;run( $html );
	}

	private function run( string $html ): string {
		$html = $this-&gt;normalize_html( $html );

		$processor = WP_HTML_Processor::create_full_parser( $html );

		if ( null === $processor ) {
			return $this-&gt;fallback( $html );
		}

		try {
			$this-&gt;walk( $processor );
		} catch ( \Exception $e ) {
			return $this-&gt;fallback( $html );
		}

		$this-&gt;flush_inline();

		$output = $this-&gt;output;
		$output = preg_replace( &quot;/[ \t]+\n/&quot;, &quot;\n&quot;, $output );
		$output = preg_replace( &quot;/\n{3,}/&quot;, &quot;\n\n&quot;, $output );

		return trim( $output );
	}

	private function fallback( string $html ): string {
		$text = wp_strip_all_tags( $html );
		$text = html_entity_decode( $text, ENT_QUOTES, &#039;UTF-8&#039; );

		return trim( preg_replace( &quot;/\n{3,}/&quot;, &quot;\n\n&quot;, $text ) );
	}

	private function normalize_html( string $html ): string {
		$html = preg_replace( &#039;/\r\n?/&#039;, &quot;\n&quot;, $html );
		$html = preg_replace( &#039;#&lt;script\b[^&gt;]*&gt;.*?&lt;/script&gt;#is&#039;, &#039;&#039;, $html );
		$html = preg_replace( &#039;#&lt;style\b[^&gt;]*&gt;.*?&lt;/style&gt;#is&#039;, &#039;&#039;, $html );
		$html = str_replace( &quot;\xE2\x80\x8B&quot;, &#039;&#039;, $html );

		return $html;
	}

	private function walk( WP_HTML_Processor $p ): void {
		while ( $p-&gt;next_token() ) {
			$type = $p-&gt;get_token_type();

			if ( &#039;#text&#039; === $type ) {
				$this-&gt;handle_text( $p-&gt;get_modifiable_text() );
				continue;
			}

			if ( &#039;#tag&#039; !== $type ) {
				continue;
			}

			$tag = strtolower( (string) $p-&gt;get_tag() );
			$is_closer = $p-&gt;is_tag_closer();
			$is_void = in_array( $tag, self::VOID_TAGS, true );

			if ( $is_closer ) {
				$this-&gt;handle_close( $tag );
				continue;
			}

			$this-&gt;handle_open( $tag, $p );

			if ( $is_void ) {
				$this-&gt;handle_close( $tag );
			}
		}
	}

	private function handle_text( string $text ): void {
		if ( &#039;&#039; === $text ) {
			return;
		}

		if ( $this-&gt;in_pre ) {
			$this-&gt;pre_buffer .= $text;
			return;
		}

		if ( $this-&gt;in_table ) {
			$this-&gt;current_cell .= $this-&gt;escape_text( $text, false );
			return;
		}

		$collapsed = preg_replace( &#039;/[ \t\n]+/&#039;, &#039; &#039;, $text );
		$escaped = $this-&gt;escape_text( $collapsed, $this-&gt;in_code );

		if ( $this-&gt;in_link ) {
			$this-&gt;link_buffer .= $escaped;
			return;
		}

		$this-&gt;inline_buffer .= $escaped;
	}

	private function handle_open( string $tag, WP_HTML_Processor $p ): void {
		switch ( $tag ) {
			case &#039;p&#039;:
			case &#039;div&#039;:
			case &#039;section&#039;:
			case &#039;article&#039;:
			case &#039;header&#039;:
			case &#039;footer&#039;:
			case &#039;main&#039;:
			case &#039;aside&#039;:
			case &#039;figure&#039;:
				$this-&gt;flush_inline();
				return;

			case &#039;h1&#039;:
			case &#039;h2&#039;:
			case &#039;h3&#039;:
			case &#039;h4&#039;:
			case &#039;h5&#039;:
			case &#039;h6&#039;:
				$this-&gt;flush_inline();
				$this-&gt;heading_level = (int) $tag[1];
				$this-&gt;inline_buffer = str_repeat( &#039;#&#039;, $this-&gt;heading_level ) . &#039; &#039;;
				return;

			case &#039;br&#039;:
				if ( $this-&gt;in_table ) {
					$this-&gt;current_cell .= &#039; &#039;;
					return;
				}
				if ( $this-&gt;heading_level &gt; 0 ) {
					$this-&gt;inline_buffer .= &#039; &#039;;
					return;
				}
				$this-&gt;inline_buffer .= &quot;\n&quot;;
				return;

			case &#039;hr&#039;:
				$this-&gt;flush_inline();
				$this-&gt;output .= &quot;\n\n---\n\n&quot;;
				return;

			case &#039;strong&#039;:
			case &#039;b&#039;:
				$this-&gt;append_inline( &#039;**&#039; );
				return;

			case &#039;em&#039;:
			case &#039;i&#039;:
				$this-&gt;append_inline( &#039;*&#039; );
				return;

			case &#039;del&#039;:
			case &#039;s&#039;:
			case &#039;strike&#039;:
				$this-&gt;append_inline( &#039;~~&#039; );
				return;

			case &#039;code&#039;:
				if ( $this-&gt;in_pre ) {
					$lang = (string) $p-&gt;get_attribute( &#039;class&#039; );
					if ( preg_match( &#039;/language-([A-Za-z0-9_+\-]+)/&#039;, $lang, $m ) ) {
						$this-&gt;pre_language = $m[1];
					}
					return;
				}
				$this-&gt;in_code = true;
				$this-&gt;append_inline( &#039;`CODE_OPEN`&#039; );
				return;

			case &#039;pre&#039;:
				$this-&gt;flush_inline();
				$this-&gt;in_pre = true;
				$this-&gt;pre_buffer = &#039;&#039;;
				$this-&gt;pre_language = &#039;&#039;;
				return;

			case &#039;a&#039;:
				$href = (string) $p-&gt;get_attribute( &#039;href&#039; );
				$this-&gt;in_link = true;
				$this-&gt;link_href = $href;
				$this-&gt;link_buffer = &#039;&#039;;
				return;

			case &#039;img&#039;:
				$this-&gt;emit_image( $p );
				return;

			case &#039;ul&#039;:
			case &#039;ol&#039;:
				if ( ! empty( $this-&gt;list_stack ) &amp;&amp; &#039;&#039; !== trim( $this-&gt;inline_buffer ) ) {
					$this-&gt;emit_list_item();
				} else {
					$this-&gt;flush_inline();
				}
				$this-&gt;list_stack[] = [
					&#039;type&#039; =&gt; $tag,
					&#039;index&#039; =&gt; 1,
				];
				return;

			case &#039;li&#039;:
				$this-&gt;flush_inline();
				return;

			case &#039;blockquote&#039;:
				$this-&gt;flush_inline();
				$this-&gt;blockquote_depth++;
				return;

			case &#039;table&#039;:
				$this-&gt;flush_inline();
				$this-&gt;in_table = true;
				$this-&gt;table_headers = [];
				$this-&gt;table_rows = [];
				return;

			case &#039;thead&#039;:
				$this-&gt;in_table_head = true;
				return;

			case &#039;tr&#039;:
				if ( ! $this-&gt;in_table ) {
					return;
				}
				$this-&gt;current_row = [];
				$this-&gt;row_is_header = $this-&gt;in_table_head;
				return;

			case &#039;th&#039;:
				$this-&gt;row_is_header = true;
				$this-&gt;current_cell = &#039;&#039;;
				return;

			case &#039;td&#039;:
				$this-&gt;current_cell = &#039;&#039;;
				return;
		}
	}

	private function handle_close( string $tag ): void {
		switch ( $tag ) {
			case &#039;p&#039;:
			case &#039;div&#039;:
			case &#039;section&#039;:
			case &#039;article&#039;:
			case &#039;header&#039;:
			case &#039;footer&#039;:
			case &#039;main&#039;:
			case &#039;aside&#039;:
			case &#039;figure&#039;:
				$this-&gt;flush_inline();
				return;

			case &#039;h1&#039;:
			case &#039;h2&#039;:
			case &#039;h3&#039;:
			case &#039;h4&#039;:
			case &#039;h5&#039;:
			case &#039;h6&#039;:
				$this-&gt;inline_buffer = preg_replace( &#039;/[ \t]+/&#039;, &#039; &#039;, $this-&gt;inline_buffer );
				$this-&gt;flush_inline();
				$this-&gt;heading_level = 0;
				return;

			case &#039;strong&#039;:
			case &#039;b&#039;:
				$this-&gt;append_inline( &#039;**&#039; );
				return;

			case &#039;em&#039;:
			case &#039;i&#039;:
				$this-&gt;append_inline( &#039;*&#039; );
				return;

			case &#039;del&#039;:
			case &#039;s&#039;:
			case &#039;strike&#039;:
				$this-&gt;append_inline( &#039;~~&#039; );
				return;

			case &#039;code&#039;:
				if ( $this-&gt;in_pre ) {
					return;
				}
				$this-&gt;append_inline( &#039;`CODE_CLOSE`&#039; );
				$this-&gt;in_code = false;
				return;

			case &#039;pre&#039;:
				$this-&gt;emit_pre();
				$this-&gt;in_pre = false;
				$this-&gt;pre_buffer = &#039;&#039;;
				$this-&gt;pre_language = &#039;&#039;;
				return;

			case &#039;a&#039;:
				$this-&gt;emit_link();
				$this-&gt;in_link = false;
				$this-&gt;link_href = &#039;&#039;;
				$this-&gt;link_buffer = &#039;&#039;;
				return;

			case &#039;ul&#039;:
			case &#039;ol&#039;:
				$this-&gt;flush_inline();
				array_pop( $this-&gt;list_stack );
				if ( empty( $this-&gt;list_stack ) ) {
					$this-&gt;output .= &quot;\n\n&quot;;
				}
				return;

			case &#039;li&#039;:
				$this-&gt;emit_list_item();
				return;

			case &#039;blockquote&#039;:
				$this-&gt;flush_inline();
				$this-&gt;blockquote_depth = max( 0, $this-&gt;blockquote_depth - 1 );
				if ( 0 === $this-&gt;blockquote_depth ) {
					$this-&gt;output .= &quot;\n&quot;;
				}
				return;

			case &#039;table&#039;:
				$this-&gt;emit_table();
				$this-&gt;in_table = false;
				$this-&gt;table_headers = [];
				$this-&gt;table_rows = [];
				return;

			case &#039;thead&#039;:
				$this-&gt;in_table_head = false;
				return;

			case &#039;tr&#039;:
				if ( ! $this-&gt;in_table ) {
					return;
				}
				if ( $this-&gt;row_is_header &amp;&amp; empty( $this-&gt;table_headers ) ) {
					$this-&gt;table_headers = $this-&gt;current_row;
				} else {
					$this-&gt;table_rows[] = $this-&gt;current_row;
				}
				$this-&gt;current_row = [];
				$this-&gt;row_is_header = false;
				return;

			case &#039;th&#039;:
			case &#039;td&#039;:
				$this-&gt;current_row[] = trim( preg_replace( &#039;/\s+/&#039;, &#039; &#039;, $this-&gt;current_cell ) );
				$this-&gt;current_cell = &#039;&#039;;
				return;
		}
	}

	private function append_inline( string $marker ): void {
		if ( $this-&gt;in_link ) {
			$this-&gt;link_buffer .= $marker;
			return;
		}

		$this-&gt;inline_buffer .= $marker;
	}

	private function emit_link(): void {
		$text = $this-&gt;link_buffer;
		$href = $this-&gt;link_href;

		if ( &#039;&#039; === $href || &#039;#&#039; === $href ) {
			$this-&gt;inline_buffer .= $text;
			return;
		}

		if ( ! $this-&gt;is_safe_url( $href ) ) {
			$this-&gt;inline_buffer .= $text;
			return;
		}

		$href = $this-&gt;escape_url_for_markdown( $href );

		$this-&gt;inline_buffer .= &#039;[&#039; . $text . &#039;](&#039; . $href . &#039;)&#039;;
	}

	private function emit_image( WP_HTML_Processor $p ): void {
		$src = (string) $p-&gt;get_attribute( &#039;src&#039; );
		$alt = (string) $p-&gt;get_attribute( &#039;alt&#039; );

		if ( &#039;&#039; === $src ) {
			return;
		}

		if ( ! $this-&gt;is_safe_url( $src ) ) {
			return;
		}

		$alt = $this-&gt;escape_text( $alt, false );
		$src = $this-&gt;escape_url_for_markdown( $src );

		$this-&gt;inline_buffer .= &#039;![&#039; . $alt . &#039;](&#039; . $src . &#039;)&#039;;
	}

	private function emit_pre(): void {
		$content = html_entity_decode( $this-&gt;pre_buffer, ENT_QUOTES, &#039;UTF-8&#039; );
		$content = rtrim( $content, &quot;\n&quot; );

		$this-&gt;output .= &quot;\n\n```&quot; . $this-&gt;pre_language . &quot;\n&quot; . $content . &quot;\n```\n\n&quot;;
	}

	private function emit_list_item(): void {
		$content = trim( $this-&gt;inline_buffer );
		$this-&gt;inline_buffer = &#039;&#039;;

		if ( &#039;&#039; === $content ) {
			return;
		}

		$top = end( $this-&gt;list_stack );

		if ( false === $top ) {
			$this-&gt;output .= $content . &quot;\n&quot;;
			return;
		}

		$depth = count( $this-&gt;list_stack ) - 1;
		$indent = str_repeat( &#039;  &#039;, $depth );

		if ( &#039;ol&#039; === $top[&#039;type&#039;] ) {
			$marker = $top[&#039;index&#039;] . &#039;. &#039;;
			$this-&gt;list_stack[ array_key_last( $this-&gt;list_stack ) ][&#039;index&#039;]++;
		} else {
			$marker = &#039;- &#039;;
		}

		$lines = explode( &quot;\n&quot;, $content );
		$first = array_shift( $lines );
		$rendered = $indent . $marker . $first;

		foreach ( $lines as $line ) {
			$rendered .= &quot;\n&quot; . $indent . &#039;  &#039; . $line;
		}

		$this-&gt;output .= $this-&gt;prefix_blockquote( $rendered ) . &quot;\n&quot;;
	}

	private function emit_table(): void {
		if ( empty( $this-&gt;table_headers ) &amp;&amp; empty( $this-&gt;table_rows ) ) {
			return;
		}

		if ( empty( $this-&gt;table_headers ) &amp;&amp; ! empty( $this-&gt;table_rows ) ) {
			$this-&gt;table_headers = array_fill( 0, count( $this-&gt;table_rows[0] ), &#039;&#039; );
		}

		$column_count = count( $this-&gt;table_headers );
		$lines = [];
		$lines[] = &#039;| &#039; . implode( &#039; | &#039;, array_map( [ $this, &#039;escape_table_cell&#039; ], $this-&gt;table_headers ) ) . &#039; |&#039;;
		$lines[] = &#039;|&#039; . str_repeat( &#039; --- |&#039;, $column_count );

		foreach ( $this-&gt;table_rows as $row ) {
			$row = array_pad( $row, $column_count, &#039;&#039; );
			$row = array_slice( $row, 0, $column_count );
			$lines[] = &#039;| &#039; . implode( &#039; | &#039;, array_map( [ $this, &#039;escape_table_cell&#039; ], $row ) ) . &#039; |&#039;;
		}

		$this-&gt;output .= &quot;\n\n&quot; . implode( &quot;\n&quot;, $lines ) . &quot;\n\n&quot;;
	}

	private function escape_table_cell( string $value ): string {
		return str_replace( [ &#039;|&#039;, &quot;\n&quot; ], [ &#039;\\|&#039;, &#039; &#039; ], $value );
	}

	private function flush_inline(): void {
		if ( &#039;&#039; === $this-&gt;inline_buffer ) {
			return;
		}

		$content = $this-&gt;finalize_inline( $this-&gt;inline_buffer );
		$this-&gt;inline_buffer = &#039;&#039;;

		$content = trim( $content );

		if ( &#039;&#039; === $content ) {
			return;
		}

		if ( ! empty( $this-&gt;list_stack ) ) {
			$this-&gt;inline_buffer = $content;
			return;
		}

		$content = $this-&gt;prefix_blockquote( $content );

		$this-&gt;output .= &quot;\n\n&quot; . $content . &quot;\n\n&quot;;
	}

	private function finalize_inline( string $buffer ): string {
		return preg_replace_callback(
			&#039;/`CODE_OPEN`(.*?)`CODE_CLOSE`/s&#039;,
			function ( $matches ) {
				return $this-&gt;render_inline_code( $matches[1] );
			},
			$buffer
		);
	}

	private function render_inline_code( string $content ): string {
		$content = preg_replace( &#039;/\s+/&#039;, &#039; &#039;, $content );

		preg_match_all( &#039;/`+/&#039;, $content, $runs );
		$max = 0;

		foreach ( $runs[0] as $run ) {
			$max = max( $max, strlen( $run ) );
		}

		$fence = str_repeat( &#039;`&#039;, $max + 1 );
		$pad = ( &#039;&#039; !== $content &amp;&amp; ( &#039;`&#039; === $content[0] || &#039;`&#039; === substr( $content, -1 ) ) ) ? &#039; &#039; : &#039;&#039;;

		return $fence . $pad . $content . $pad . $fence;
	}

	private function prefix_blockquote( string $content ): string {
		if ( 0 === $this-&gt;blockquote_depth ) {
			return $content;
		}

		$prefix = str_repeat( &#039;&gt; &#039;, $this-&gt;blockquote_depth );
		$lines = explode( &quot;\n&quot;, $content );

		return implode( &quot;\n&quot;, array_map(
			function ( $line ) use ( $prefix ) {
				return $prefix . $line;
			},
			$lines
		) );
	}

	private function escape_text( string $text, bool $in_code ): string {
		$text = html_entity_decode( $text, ENT_QUOTES, &#039;UTF-8&#039; );

		if ( $in_code ) {
			return $text;
		}

		$replacements = [];

		foreach ( self::ESCAPABLE_MARKDOWN_CHARS as $char ) {
			$replacements[ $char ] = &#039;\\&#039; . $char;
		}

		return strtr( $text, $replacements );
	}

	private function escape_url_for_markdown( string $url ): string {
		return strtr( $url, [
			&#039; &#039; =&gt; &#039;%20&#039;,
			&#039;(&#039; =&gt; &#039;%28&#039;,
			&#039;)&#039; =&gt; &#039;%29&#039;,
			&#039;&lt;&#039; =&gt; &#039;%3C&#039;,
			&#039;&gt;&#039; =&gt; &#039;%3E&#039;,
		] );
	}

	private function is_safe_url( string $url ): bool {
		$url = trim( $url );

		if ( &#039;&#039; === $url ) {
			return false;
		}

		if ( &#039;#&#039; === $url[0] || &#039;/&#039; === $url[0] || &#039;?&#039; === $url[0] ) {
			return true;
		}

		$lower = strtolower( $url );

		foreach ( self::SAFE_DATA_PREFIXES as $prefix ) {
			if ( 0 === strpos( $lower, $prefix ) ) {
				return true;
			}
		}

		if ( ! preg_match( &#039;#^([a-z][a-z0-9+.\-]*):#i&#039;, $url, $m ) ) {
			return true;
		}

		return in_array( strtolower( $m[1] ), self::SAFE_URL_SCHEMES, true );
	}
}
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