Added support for \n in text elements

OpenXmlFormats/Wordprocessing/wml.cs

@@ -18,6 +18,7 @@
 using NPOI.OpenXml4Net.Util;
 using System.Xml;
 using NPOI.OpenXmlFormats.Dml.WordProcessing;
+using System.Text;
 
 namespace NPOI.OpenXmlFormats.Wordprocessing
 {
@@ -2246,9 +2247,26 @@ public static CT_Text Parse(XmlNode node, XmlNamespaceManager namespaceManager)
         {
             if (node == null)
                 return null;
+
             CT_Text ctObj = new CT_Text();
             ctObj.space = XmlHelper.ReadString(node.Attributes["xml:space"]);
-            ctObj.Value = node.InnerText;
+
+            //Check if the current Xml Node contains "<w:cr/>" elements.
+            //Each cr element should be replaced with \n
+            StringBuilder sb = new StringBuilder();
+            foreach (XmlNode elem in node.ChildNodes)
+            {
+                if (elem.NodeType==XmlNodeType.Text)
+                {
+                    sb.Append(elem.InnerText);
+                }
+                else if (elem.NodeType==XmlNodeType.Element && elem.LocalName=="cr")
+                {
+                    sb.Append("\n");
+                }
+            }
+
+            ctObj.Value = sb.ToString();          
             return ctObj;
         }
 
@@ -2263,7 +2281,13 @@ internal void Write(StreamWriter sw, string nodeName)
             sw.Write(">");
             if (this.valueField != null)
             {
-                sw.Write(XmlHelper.EncodeXml(this.valueField));
+                string[] parts = this.valueField.Split('\n');
+                for(int i = 0; i<parts.Length; i++)
+                {
+                    sw.Write(XmlHelper.EncodeXml(parts[i]));
+                    if(i < parts.Length - 1)
+                        sw.Write("<w:cr/>");
+                }
             }
             sw.WriteEndW(nodeName);
         }

testcases/ooxml/XWPF/UserModel/TestXWPFDocument.cs

@@ -28,6 +28,8 @@ namespace TestCases.XWPF.UserModel
     using System;
     using System.Collections.Generic;
     using System.IO;
+    using System.Linq;
+    using System.Text;
     using TestCases;
 
     [TestFixture]
@@ -135,6 +137,53 @@ public void TestAddParagraph()
             //Assert.AreSame(cP, doc.Paragraphs[(0)]);
             //Assert.AreEqual(5, doc.Paragraphs.Count);
         }
+
+        [Test]
+        public void ReplaceParagraphText()
+        {
+            XWPFDocument doc = XWPFTestDataSamples.OpenSampleDocument("WordReplaceCRLF.docx");
+
+            //Find and replace text in document body
+            doc.FindAndReplaceText("$replace_text$", "Regel1\nRegel2\nRegel3");
+
+            //Find and replace text io tabel cell
+            doc.FindAndReplaceText("$replace_cell_text$", "Regel1\nRegel2\nRegel3");
+
+            //Save Word Document
+            XWPFDocument outputDocument = outputDocument = XWPFTestDataSamples.WriteOutAndReadBack(doc);
+
+            //Combine all runs of all paragraphs
+            StringBuilder builder = new StringBuilder();
+            foreach (var paragraph in outputDocument.Paragraphs)
+            {
+                foreach (var run in  paragraph.Runs)
+                {
+                    builder.Append(run.GetText(0));
+                }
+            }
+
+            //Check 
+            Assert.AreEqual("Regel1\nRegel2\nRegel3", builder.ToString());
+
+            //Check text was replaced correctly in table cell
+            var table = outputDocument.Tables.FirstOrDefault();
+            Assert.IsNotNull(table);
+
+            var dataRow = table.Rows[1];
+            builder.Clear();
+            foreach (var tableCellParagraph in dataRow.GetCell(0).Paragraphs)
+            {
+                foreach(var run in tableCellParagraph.Runs)
+                {
+                    builder.Append(run.GetText(0));
+                }
+            }
+
+            //Check 
+            Assert.AreEqual("Table replace multiple enters Regel1\nRegel2\nRegel3 text after last enter", builder.ToString());
+
+        }
+
         [Test]
         public void TestAddPicture()
         {