Fix #274, Fix #275

_test/extra.txt

@@ -684,3 +684,22 @@ This line will be displayed.
 <video autoplay muted loop>\r\n<source src=\"https://example.com/example.mp4\" type=\"video/mp4\">\r\nYour browser does not support the video tag.\r\n</video>
 //= = = = = = = = = = = = = = = = = = = = = = = =//
 
+
+53: HTML comment without trailing new lines
+    OPTIONS: {"trim": true}
+//- - - - - - - - -//
+<!--
+-->
+//- - - - - - - - -//
+<!--
+-->
+//= = = = = = = = = = = = = = = = = = = = = = = =//
+
+
+54: Escaped characters followed by a null character
+    OPTIONS: {"enableEscape": true}
+//- - - - - - - - -//
+\\\x00\"
+//- - - - - - - - -//
+<p>\\\ufffd&quot;</p>
+//= = = = = = = = = = = = = = = = = = = = = = = =//

parser/html_block.go

@@ -201,7 +201,7 @@ func (b *htmlBlockParser) Continue(node ast.Node, reader text.Reader, pc Context
 		}
 		if bytes.Contains(line, closurePattern) {
 			htmlBlock.ClosureLine = segment
-			reader.Advance(segment.Len() - 1)
+			reader.Advance(segment.Len())
 			return Close
 		}
 

renderer/html/html.go

@@ -743,6 +743,7 @@ func (d *defaultWriter) Write(writer util.BufWriter, source []byte) {
 			d.RawWrite(writer, source[n:i])
 			d.RawWrite(writer, replacementCharacter)
 			n = i + 1
+			escaped = false
 			continue
 		}
 		if c == '&' {

testutil/testutil.go

@@ -35,22 +35,31 @@ type MarkdownTestCase struct {
 }
 
 func source(t *MarkdownTestCase) string {
-	if t.Options.EnableEscape {
+	ret := t.Markdown
-		return string(applyEscapeSequence([]byte(t.Markdown)))
+	if t.Options.Trim {
+		ret = strings.TrimSpace(ret)
 	}
-	return t.Markdown
+	if t.Options.EnableEscape {
+		return string(applyEscapeSequence([]byte(ret)))
+	}
+	return ret
 }
 
 func expected(t *MarkdownTestCase) string {
-	if t.Options.EnableEscape {
+	ret := t.Expected
-		return string(applyEscapeSequence([]byte(t.Expected)))
+	if t.Options.Trim {
+		ret = strings.TrimSpace(ret)
 	}
-	return t.Expected
+	if t.Options.EnableEscape {
+		return string(applyEscapeSequence([]byte(ret)))
+	}
+	return ret
 }
 
 // MarkdownTestCaseOptions represents options for each test case.
 type MarkdownTestCaseOptions struct {
 	EnableEscape bool
+	Trim         bool
 }
 
 const attributeSeparator = "//- - - - - - - - -//"