From 040d7a6b7b2854537dc408abf85157474ce4f74f Mon Sep 17 00:00:00 2001
From: Jason Streifling <jason@streifling.com>
Date: Thu, 17 Oct 2024 18:12:23 +0200
Subject: [PATCH] Create xhtmlDiv.go

---
 xhtmlDiv.go  | 30 ++++++++++++++++++++++++++++++
 xhtmlText.go | 12 +++---------
 2 files changed, 33 insertions(+), 9 deletions(-)
 create mode 100644 xhtmlDiv.go

diff --git a/xhtmlDiv.go b/xhtmlDiv.go
new file mode 100644
index 0000000..f0224b9
--- /dev/null
+++ b/xhtmlDiv.go
@@ -0,0 +1,30 @@
+package atom
+
+import (
+	"encoding/xml"
+	"errors"
+)
+
+type XHTMLDiv struct {
+	XMLName xml.Name `xml:"div"`
+	XMLNS   string   `xml:"xmlns,attr"`
+	Content string   `xml:",innerxml"`
+}
+
+// NewXHTMLDiv creates a new XHTMLDiv. It returns a *XHTMLDiv.
+func NewXHTMLDiv(content string) *XHTMLDiv {
+	return &XHTMLDiv{
+		XMLNS:   "http://www.w3.org/1999/xhtml",
+		Content: content,
+	}
+}
+
+// Check checks the XHTMLDiv for incompatibilities with RFC4287. It returns an
+// error.
+func (x *XHTMLDiv) Check() error {
+	if x.XMLNS != "http://www.w3.org/1999/xhtml" {
+		return errors.New("xmlns attribute of xhtml text must be http://www.w3.org/1999/xhtml")
+	}
+
+	return nil
+}
diff --git a/xhtmlText.go b/xhtmlText.go
index fd44b14..1deeeb1 100644
--- a/xhtmlText.go
+++ b/xhtmlText.go
@@ -1,16 +1,10 @@
 package atom
 
 import (
-	"encoding/xml"
 	"errors"
+	"fmt"
 )
 
-type XHTMLDiv struct {
-	XMLName xml.Name `xml:"div"`
-	XMLNS   string   `xml:"xmlns,attr"`
-	Content string   `xml:",innerxml"`
-}
-
 type XHTMLText struct {
 	*CommonAttributes
 	Type     string `xml:"type,attr"` // Must be xhtml
@@ -27,8 +21,8 @@ func (x *XHTMLText) Check() error {
 		return errors.New("type attribute of xhtml text must be xhtml")
 	}
 
-	if x.XHTMLDiv.XMLNS != "http://www.w3.org/1999/xhtml" {
-		return errors.New("xmlns attribute of xhtml text must be http://www.w3.org/1999/xhtml")
+	if err := x.XHTMLDiv.Check(); err != nil {
+		return fmt.Errorf("xhtml div element %v of xhtml text %v: %v", x.XHTMLDiv, x, err)
 	}
 
 	return nil