fix range detection for documents with section across document parts.

Bug46817.doc is the example of document where section contains all document parts - including main part and additional from textbox. Previous implemenetation didn't correctly calculate last paragraph for Section (intersection of SEPX and main document range). Test case is added.

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1143014 13f79535-47bb-0310-9956-ffa450edef68

src/scratchpad/src/org/apache/poi/hwpf/usermodel/Range.java

@@ -1001,21 +1001,31 @@ public class Range { // TODO -instantiable superclass
 			node = rpl.get(x);
 		}
 
-        if (node.getStart()>end) {
+        if ( node.getStart() > end )
+        {
             return new int[] { 0, 0 };
         }
 
-		if (node.getEnd() <= start) {
+        if ( node.getEnd() <= start )
+        {
             return new int[] { rpl.size(), rpl.size() };
         }
 
-		int y = x;
+        for ( int y = x; y < rpl.size(); y++ )
+        {
             node = rpl.get( y );
-		while (node==null || (node.getEnd() < end && y < rpl.size() - 1)) {
+            if ( node == null )
-			y++;
+                continue;
-			node = rpl.get(y);
+
-		}
+            if ( node.getStart() < end && node.getEnd() <= end )
+                continue;
+
+            if ( node.getStart() < end )
                 return new int[] { x, y +1 };
+
+            return new int[] { x, y };
+        }
+        return new int[] { x, rpl.size() };
     }
 
 	/**
@@ -1109,4 +1119,11 @@ public class Range { // TODO -instantiable superclass
 	protected HWPFDocumentCore getDocument() {
 		return _doc;
 	}
+
+    @Override
+    public String toString()
+    {
+        return "Range from " + getStartOffset() + " to " + getEndOffset()
+                + " (chars)";
+    }
 }

src/scratchpad/testcases/org/apache/poi/hwpf/converter/TestWordToHtmlConverter.java

@@ -62,6 +62,12 @@ public class TestWordToHtmlConverter extends TestCase
         return result;
     }
 
+    public void testAIOOBTap() throws Exception
+    {
+        String result = getHtmlText( "AIOOB-Tap.doc" );
+        assertTrue( result.substring( 0, 2000 ).contains( "<table>" ) );
+    }
+
     public void testBug33519() throws Exception
     {
         getHtmlText( "Bug33519.doc" );
@@ -74,6 +80,12 @@ public class TestWordToHtmlConverter extends TestCase
                 .contains( "012345678911234567892123456789312345678941234567890123456789112345678921234567893123456789412345678" ) );
     }
     
+    public void testBug46817() throws Exception
+    {
+        String result = getHtmlText( "Bug46817.doc" );
+        assertTrue( result.contains( "<table>" ) );
+    }
+
     public void testEquation() throws Exception
     {
         String result = getHtmlText( "equation.doc" );
@@ -82,13 +94,6 @@ public class TestWordToHtmlConverter extends TestCase
                 .contains( "<!--Image link to '0.emf' can be here-->" ) );
     }
 
-    public void testAIOOBTap() throws Exception
-    {
-        String result = getHtmlText( "AIOOB-Tap.doc" );
-
-        assertTrue( result.substring( 0, 2000 ).contains( "<table>" ) );
-    }
-
     public void testHyperlink() throws Exception
     {
         String result = getHtmlText( "hyperlink.doc" );
@@ -102,6 +107,13 @@ public class TestWordToHtmlConverter extends TestCase
         getHtmlText( "innertable.doc" );
     }
 
+    public void testMBD001D0B89() throws Exception
+    {
+        String result = getHtmlText( "MBD001D0B89.doc" );
+
+        assertTrue( result.contains( "<table>" ) );
+    }
+
     public void testPageref() throws Exception
     {
         String result = getHtmlText( "pageref.doc" );

src/scratchpad/testcases/org/apache/poi/hwpf/usermodel/TestRange.java

@@ -17,24 +17,30 @@
 
 package org.apache.poi.hwpf.usermodel;
 
+import java.util.ArrayList;
+
+import org.apache.poi.hwpf.model.SEPX;
+
+import org.apache.poi.POIDataSamples;
+import org.apache.poi.hwpf.HWPFDocument;
+
 import junit.framework.TestCase;
 
 /**
- * Tests for Range which aren't around deletion, insertion,
+ * Tests for Range which aren't around deletion, insertion, text replacement or
- *  text replacement or textual contents
+ * textual contents
  */
-public final class TestRange extends TestCase {
+public final class TestRange extends TestCase
-	public void testFieldStripping() {
+{
+    public void testFieldStripping()
+    {
         String exp = "This is some text.";
 
         String single = "This is some \u0013Blah!\u0015text.";
         String with14 = "This is \u0013Blah!\u0014some\u0015 text.";
-		String withNested =
+        String withNested = "This is \u0013Blah!\u0013Blah!\u0015\u0015some text.";
-			"This is \u0013Blah!\u0013Blah!\u0015\u0015some text.";
+        String withNested14 = "This is \u0013Blah!\u0013Blah!\u0014don't see me\u0015 blah!\u0015some text.";
-		String withNested14 =
+        String withNestedIn14 = "This is \u0013Blah!\u0014some\u0013Blah!\u0015 \u0015text.";
-			"This is \u0013Blah!\u0013Blah!\u0014don't see me\u0015 blah!\u0015some text.";
-		String withNestedIn14 =
-			"This is \u0013Blah!\u0014some\u0013Blah!\u0015 \u0015text.";
 
         // Check all comes out right
         assertEquals( exp, Range.stripFields( exp ) );
@@ -51,4 +57,36 @@ public final class TestRange extends TestCase {
         assertEquals( odd1, Range.stripFields( odd1 ) );
         assertEquals( odd2, Range.stripFields( odd2 ) );
     }
+
+    public void testBug46817() throws Exception
+    {
+        HWPFDocument hwpfDocument = new HWPFDocument( POIDataSamples
+                .getDocumentInstance().openResourceAsStream( "Bug46817.doc" ) );
+
+        final ArrayList<SEPX> sections = hwpfDocument.getSectionTable()
+                .getSections();
+        assertEquals( sections.size(), 1 );
+
+        // whole document, including additional text from shape
+        SEPX sepx = sections.get( 0 );
+        assertEquals( sepx.getStartBytes(), 1024 );
+        assertEquals( sepx.getEndBytes(), 3880 );
+        assertEquals( sepx.getStart(), 0 );
+        assertEquals( sepx.getEnd(), 1428 );
+
+        // only main range
+        Range range = hwpfDocument.getRange();
+        assertEquals( range.getStartOffset(), 0 );
+        assertEquals( range.getEndOffset(), 766 );
+
+        Paragraph lastInMainRange = range.getParagraph( range.numParagraphs() );
+        assertTrue( lastInMainRange.getEndOffset() <= 766 );
+
+        Section section = range.getSection( 0 );
+        assertTrue( section.getEndOffset() <= 766 );
+
+        Paragraph lastInMainSection = section.getParagraph( section
+                .numParagraphs() );
+        assertTrue( lastInMainSection.getEndOffset() <= 766 );
+    }
 }