From b61060302c563617fd7514c21c9d7fd43f6b716d Mon Sep 17 00:00:00 2001
From: Michael Ochmann <michael.ochmann@propeller.de>
Date: Tue, 1 Mar 2022 18:50:57 +0100
Subject: [PATCH] implemented horizontal rules.

closes #1
---
 README.md                    |  6 ++++++
 src/Parser.php               | 19 +++++++++++++++++++
 {test => tests}/paragraph.md |  0
 {test => tests}/test1.md     |  0
 4 files changed, 25 insertions(+)
 rename {test => tests}/paragraph.md (100%)
 rename {test => tests}/test1.md (100%)

diff --git a/README.md b/README.md
index 82f7679..7ac3eeb 100644
--- a/README.md
+++ b/README.md
@@ -12,6 +12,7 @@ Parkdown currently support the following block types:
 * tables *(with alignment specification)*
 * paragraphs
 * block quotes
+* horizontal rules `---`
 
 ### Supported inline types
 Parkdown currently support the following block types:
@@ -43,7 +44,12 @@ or via reference to [a later defined url][massivedynamic], i we so desire.
 
 ![this is an alt text](https://images.unsplash.com/photo-1571171637578-41bc2dd41cd2?ixlib=rb-1.2.1&ixid=MnwxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8&auto=format&fit=crop&h=300&w=1740&q=80)
 
+### Horizontal rules
+```markdown
+---
+```
 
+---
 ### Block quotes
 ```markdown
 > Only two things are infinite,
diff --git a/src/Parser.php b/src/Parser.php
index 5cea154..1b7e42f 100644
--- a/src/Parser.php
+++ b/src/Parser.php
@@ -457,6 +457,22 @@ class Parser {
 		$this->document->appendChild($elm);
 	}
 
+	private function parseHorizontalRule() : void {
+		if (!($this->next()->type === TokenType::MINUS &&
+				$this->peek(2)->type === TokenType::MINUS &&
+				$this->peek(3)->type === TokenType::EOL)) {
+			$this->buildParagraph($this->parseText());
+			return;
+		}
+		$this->consume(); // -
+		$this->consume(); // -
+		$this->consume(); // -
+		$this->consume(); // EOL
+
+		$elm = $this->document->createElement("hr");
+		$this->document->appendChild($elm);
+	}
+
 	public function parse() : DOMDocument {
 		while ($this->current()->type !== TokenType::EOF) {
 			switch($this->current()->type) {
@@ -484,6 +500,9 @@ class Parser {
 				case TokenType::GT:
 					$this->parseBlockQuote();
 					break;
+				case TokenType::MINUS:
+					$this->parseHorizontalRule();
+					break;
 				case TokenType::TEXT:
 				default:
 					$this->buildParagraph($this->parseText(true));
diff --git a/test/paragraph.md b/tests/paragraph.md
similarity index 100%
rename from test/paragraph.md
rename to tests/paragraph.md
diff --git a/test/test1.md b/tests/test1.md
similarity index 100%
rename from test/test1.md
rename to tests/test1.md