implemented tables

index.php

@@ -5,5 +5,13 @@ require __DIR__."/vendor/autoload.php";
 
 $source = file_get_contents(dirname(__FILE__)."/test/test1.md");
 
+echo "
+<style>
+	table {
+		width: 100%;
+	}
+</style>
+";
+
 $Instance = new parkdown\Parkdown($source);
 $Instance->html();

src/Lexer.php

@@ -51,6 +51,10 @@ class Lexer {
 						$clearBuffer();
 						array_push($tokens, new Token(TokenType::DOT, $char));
 						break;
+					case '-':
+						$clearBuffer();
+						array_push($tokens, new Token(TokenType::MINUS, $char));
+						break;
 					case '`':
 						$clearBuffer();
 						array_push($tokens, new Token(TokenType::BACKTICK, $char));
@@ -75,6 +79,10 @@ class Lexer {
 						$clearBuffer();
 						array_push($tokens, new Token(TokenType::BANG, $char));
 						break;
+					case '|':
+						$clearBuffer();
+						array_push($tokens, new Token(TokenType::PIPE, $char));
+						break;
 					case ':':
 						if (str_ends_with($buffer, "http") || str_ends_with($buffer, "https")) {
 							$buffer .= $char;

src/Parser.php

@@ -5,7 +5,6 @@ namespace parkdown;
 use DOMDocument;
 use DOMElement;
 use DOMNode;
-use DOMText;
 
 class Parser {
 	const MAGIC_CHAR = "*";
@@ -316,7 +315,81 @@ class Parser {
 		$this->references[$index] = trim($buffer);
 	}
 
+	private function parseTableHead(string $nodeName = "th", ?array $props = null) : DOMNode {
+		$elm = $this->document->createElement("tr");
+		$i   = 0;
+		while ($this->current()->type !== TokenType::EOL && $this->current()->type !== TokenType::EOF) {
+			$pipe   = $this->consume();
+			$buffer = "";
+			while ($this->current()->type !== TokenType::PIPE && $this->current()->type !== TokenType::EOL)
+				$buffer .= $this->consume()->data;
+
+			if ($buffer === "")
+				continue;
+			$col = $this->document->createElement($nodeName, $buffer);
+			if ($props)
+				$col->setAttribute("style", "text-align: ".$props[$i]);
+			$elm->appendChild($col);
+			$i++;
+		}
+		$this->consume(); // EOL
+
+		return $elm;
+	}
+
+	private function parseTableRow(array $props) : DOMNode {
+		return $this->parseTableHead("td", $props);
+	}
+
+	private function parseTableAlignment() : array {
+		$props = [];
+
+		while ($this->current()->type !== TokenType::EOL && $this->current()->type !== TokenType::EOF) {
+			$pipe   = $this->consume();
+			$buffer = "";	
+			while ($this->current()->type !== TokenType::PIPE && $this->current()->type !== TokenType::EOL)
+				$buffer .= $this->consume()->data;
+			
+			if ($buffer === "")
+				continue;
+			if (substr($buffer, 0, 1) === ':')
+				array_push($props, "left");
+			elseif (substr($buffer, strlen($buffer) - 1, 1) === ':')
+				array_push($props, "right");
+			elseif (str_contains($buffer, ':'))
+				array_push($props, "center");
+			else
+				array_push($props, "left");
+		}
+
+		return $props;
+	}
+
+	private function parseTable() : void {
+		$elm   = $this->document->createElement("table");
+		$head  = $this->parseTableHead();
+		$props = $this->parseTableAlignment();
+
+		$i = 0;
+		foreach($head->childNodes as $col) {
+			$col->setAttribute("style", "text-align: ".$props[$i]);
+			$i++;
+		}
+
+		$elm->appendChild($head);
+
+		while ($this->current()->type === TokenType::EOL && $this->next()->type === TokenType::PIPE) {
+			$this->consume(); // EOL
+			$elm->appendChild($this->parseTableRow($props));
+		}
+
+		$this->document->appendChild($elm);
+	}
+
 	private function resolveReferences(DOMElement $node) : void {
+		if (count($this->references) < 1)
+			return;
+
 		if ($node->hasAttribute("href")) {
 			$href = $node->getAttribute("href");
 			if (substr($href, 0, 1) === self::MAGIC_CHAR) {
@@ -360,6 +433,9 @@ class Parser {
 				case TokenType::LBRACKET:
 					$this->parseReference();
 					break;
+				case TokenType::PIPE:
+					$this->parseTable();
+					break;
 				default:
 					$this->buildParagraph($this->parseText());
 					break;

src/Token.php

@@ -7,6 +7,7 @@ enum TokenType {
 	case ASTERISK;
 	case TEXT    ;
 	case DOT     ;
+	case MINUS   ;
 	case NUMBER  ;
 	case EOL     ;
 	case EOF     ;
@@ -17,6 +18,7 @@ enum TokenType {
 	case RPAREN  ;
 	case BANG    ;
 	case COLON   ;
+	case PIPE    ;
 }
 
 class Token {

test/test1.md

@@ -20,8 +20,11 @@ And we test: all [special chars][1] in random [text][hallo]. this [word][http://
 
 lol 1 bild ![Eine Perle: für **die Ewigkeit* ..](https://mike-ochmann.de/assets/images/perl_jam.jpg)
 
+| Spalte 1 | Spalte 2 | Spalte 3 |
+|:---------|-----:----|---------:|
+| value a  | value b  | value c  |
 
-At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet. Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet.
+At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet. Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet. {class: rot}
 
 ```
 	//this should be a codeblock