From d6bcc16d72c2084dac48582bc9a6f4fd7c6ab042 Mon Sep 17 00:00:00 2001
From: Anita Stanisz
 <106669481+anita-stanisz-sonarsource@users.noreply.github.com>
Date: Mon, 29 Apr 2024 17:05:35 +0200
Subject: [PATCH] SONAR-22162 Support empty quote line in issue comment
 (#11048)

---
 .../sonar/markdown/HtmlBlockquoteChannel.java |  6 +++---
 .../java/org/sonar/markdown/MarkdownTest.java | 20 ++++++++++++++++++-
 2 files changed, 22 insertions(+), 4 deletions(-)

diff --git a/sonar-markdown/src/main/java/org/sonar/markdown/HtmlBlockquoteChannel.java b/sonar-markdown/src/main/java/org/sonar/markdown/HtmlBlockquoteChannel.java
index 8cc0045ebbd..3dac71ad6eb 100644
--- a/sonar-markdown/src/main/java/org/sonar/markdown/HtmlBlockquoteChannel.java
+++ b/sonar-markdown/src/main/java/org/sonar/markdown/HtmlBlockquoteChannel.java
@@ -63,7 +63,7 @@ class HtmlBlockquoteChannel extends Channel<MarkdownOutput> {
   private class QuotedLineElementChannel extends RegexChannel<MarkdownOutput> {
 
     private QuotedLineElementChannel() {
-      super("&gt;\\s[^\r\n]*+");
+      super("&gt;[^\r\n]*+");
     }
 
     @Override
@@ -82,15 +82,15 @@ class HtmlBlockquoteChannel extends Channel<MarkdownOutput> {
         if (token.charAt(index) == '&') {
           index += 4;
           while (index < token.length()) {
-            index ++;
             if (token.charAt(index) != ' ') {
               return index;
             }
+            index ++;
           }
         }
         index ++;
       }
-      return token.length() - 1;
+      return token.length();
     }
   }
 
diff --git a/sonar-markdown/src/test/java/org/sonar/markdown/MarkdownTest.java b/sonar-markdown/src/test/java/org/sonar/markdown/MarkdownTest.java
index 1f56839134f..22baae61acb 100644
--- a/sonar-markdown/src/test/java/org/sonar/markdown/MarkdownTest.java
+++ b/sonar-markdown/src/test/java/org/sonar/markdown/MarkdownTest.java
@@ -43,7 +43,6 @@ public class MarkdownTest {
         .isEqualTo("For more details, please <a href=\"http://docs.sonarsource.com/sonarqube/display/SONAR\" target=\"_blank\" rel=\"noopener noreferrer\">check online documentation</a>.");
   }
 
-
   @Test
   public void shouldDecorateEndOfLine() {
     assertThat(Markdown.convertToHtml("1\r2\r\n3\n")).isEqualTo("1<br/>2<br/>3<br/>");
@@ -123,4 +122,23 @@ public class MarkdownTest {
     assertThat(Markdown.convertToHtml("My text is $123 ''")).isEqualTo("My text is $123 ''");
   }
 
+  @Test
+  public void shouldSupportEmptyQuoteLineWithAndWithoutLeadingSpace() {
+    assertThat(Markdown.convertToHtml("""
+        >just some quotation without leading space
+        > 
+        >
+        > continue quotation"""
+    )).isEqualTo("""
+        <blockquote>just some quotation without leading space<br/>
+        <br/>
+        <br/>
+        continue quotation<br/></blockquote>""");
+  }
+
+  @Test
+  public void shouldConvertSingleGreaterThanChar() {
+    assertThat(Markdown.convertToHtml(">")).isEqualTo("<blockquote><br/></blockquote>");
+  }
+
 }
-- 
2.39.5