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fix LVL#xst definition and processing

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git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1389053 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Sergey Vladimirov 2012-09-23 13:29:31 +00:00
parent d8a2f3eb72
commit 3f5640f8f2
3 changed files with 162 additions and 67 deletions
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96
src/scratchpad/src/org/apache/poi/hwpf/model/ListLevel.java
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@ -20,7 +20,6 @@ package org.apache.poi.hwpf.model;
import java.util.Arrays;
import org.apache.poi.util.Internal;
import org.apache.poi.util.LittleEndian;
import org.apache.poi.util.POILogFactory;
import org.apache.poi.util.POILogger;
@ -44,7 +43,22 @@ public final class ListLevel
private byte[] _grpprlChpx;
private byte[] _grpprlPapx;
private LVLF _lvlf;
private char[] _xst = {};
/**
* An Xst that specifies the number text that begins each paragraph in this
* level. This can contain placeholders for level numbers that are inherited
* from the other paragraphs in the list. Any element in the rgtchar field
* of this Xst can be a placeholder. Each placeholder is an unsigned 2-byte
* integer that specifies the zero-based level that the placeholder is for.
*
* Each placeholder MUST have a value that is less than or equal to the
* zero-based level of the list that this LVL represents. The indexes of the
* placeholders are specified by lvlf.rgbxchNums. Placeholders that
* correspond to levels that do not have a number sequence (see lvlf.nfc)
* MUST be ignored. If this level uses bullets (see lvlf.nfc), the cch field
* of this Xst MUST be equal to 0x0001, and this MUST NOT contain any
* placeholders.
*/
private Xst _xst = new Xst();
ListLevel()
{
@ -67,11 +81,11 @@ public final class ListLevel
if ( numbered )
{
_lvlf.getRgbxchNums()[0] = 1;
_xst = new char[] { (char) level, '.' };
_xst = new Xst("" + (char) level + ".");
}
else
{
_xst = new char[] { '\u2022' };
_xst = new Xst("\u2022");
}
}
@ -84,7 +98,7 @@ public final class ListLevel
_lvlf.setJc( (byte) alignment );
_grpprlChpx = numberProperties;
_grpprlPapx = entryProperties;
_xst = numberText.toCharArray();
_xst = new Xst(numberText);
}
public boolean equals( Object obj )
@ -96,7 +110,7 @@ public final class ListLevel
return lvl._lvlf.equals( this._lvlf )
&& Arrays.equals( lvl._grpprlChpx, _grpprlChpx )
&& Arrays.equals( lvl._grpprlPapx, _grpprlPapx )
&& Arrays.equals( lvl._xst, _xst );
&& lvl._xst.equals( this._xst );
}
/**
@ -132,17 +146,13 @@ public final class ListLevel
public String getNumberText()
{
if ( _xst.length < 2 )
return null;
return new String( _xst, 0, _xst.length - 1 );
return _xst.getAsJavaString();
}
public int getSizeInBytes()
{
return LVLF.getSize() + _lvlf.getCbGrpprlChpx()
+ _lvlf.getCbGrpprlPapx() + LittleEndian.SHORT_SIZE
+ _xst.length * LittleEndian.SHORT_SIZE;
+ _lvlf.getCbGrpprlPapx() + _xst.getSize();
}
public int getStartAt()
@ -173,6 +183,9 @@ public final class ListLevel
System.arraycopy( data, offset, _grpprlChpx, 0, _lvlf.getCbGrpprlChpx() );
offset += _lvlf.getCbGrpprlChpx();
_xst = new Xst( data, offset );
offset += _xst.getSize();
/*
* "If this level uses bullets (see lvlf.nfc), the cch field of this Xst
* MUST be equal to 0x0001, and this MUST NOT contain any placeholders."
@ -181,45 +194,12 @@ public final class ListLevel
*/
if ( _lvlf.getNfc() == 0x17 )
{
int cch = LittleEndian.getUShort( data, offset );
offset += LittleEndian.SHORT_SIZE;
if ( cch != 1 )
if ( _xst.getCch() != 1 )
{
logger.log( POILogger.WARN, "LVL at offset ",
Integer.valueOf( startOffset ),
" has nfc == 0x17 (bullets), but cch != 1 (",
Integer.valueOf( cch ), ")" );
}
_xst = new char[cch];
for ( int x = 0; x < cch; x++ )
{
_xst[x] = (char) LittleEndian.getShort( data, offset );
offset += LittleEndian.SHORT_SIZE;
}
}
else
{
int cch = LittleEndian.getUShort( data, offset );
offset += LittleEndian.SHORT_SIZE;
if ( cch > 0 )
{
_xst = new char[cch];
for ( int x = 0; x < cch; x++ )
{
_xst[x] = (char) LittleEndian.getShort( data, offset );
offset += LittleEndian.SHORT_SIZE;
}
}
else
{
logger.log( POILogger.WARN, "LVL.xst.cch <= 0: ",
Integer.valueOf( cch ) );
/* sometimes numberTextLength<0 */
/* by derjohng */
_xst = new char[] {};
Integer.valueOf( _xst.getCch() ), ")" );
}
}
@ -271,24 +251,8 @@ public final class ListLevel
System.arraycopy( _grpprlChpx, 0, buf, offset, _grpprlChpx.length );
offset += _grpprlChpx.length;
if ( _lvlf.getNfc() == 0x17 )
{
LittleEndian.putUShort( buf, offset, 1 );
offset += LittleEndian.SHORT_SIZE;
LittleEndian.putUShort( buf, offset, _xst[0] );
offset += LittleEndian.SHORT_SIZE;
}
else
{
LittleEndian.putUShort( buf, offset, _xst.length );
offset += LittleEndian.SHORT_SIZE;
for ( char c : _xst )
{
LittleEndian.putUShort( buf, offset, c );
offset += LittleEndian.SHORT_SIZE;
}
}
_xst.serialize( buf, offset );
offset += _xst.getSize();
return buf;
}
@ -300,6 +264,6 @@ public final class ListLevel
+ "\n"
+ ( "PAPX's grpprl: " + Arrays.toString( _grpprlPapx ) + "\n" )
+ ( "CHPX's grpprl: " + Arrays.toString( _grpprlChpx ) + "\n" )
+ ( "xst: " + Arrays.toString( _xst ) + "\n" );
+ ( "xst: " + _xst + "\n" );
}
}

131
src/scratchpad/src/org/apache/poi/hwpf/model/Xst.java Normal file
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@ -0,0 +1,131 @@
package org.apache.poi.hwpf.model;
import java.util.Arrays;
import org.apache.poi.util.LittleEndian;
/**
* The Xst structure is a string. The string is prepended by its length and is
* not null-terminated.
* <p>
* Documentation quoted from Page 424 of 621. [MS-DOC] -- v20110315 Word (.doc)
* Binary File Format
*
* @author Sergey Vladimirov (vlsergey {at} gmail {dot} com)
*/
public class Xst
{
/**
* An unsigned integer that specifies the number of characters that are
* contained in the rgtchar array.
*/
private int _cch;
/**
* An array of 16-bit Unicode characters that make up a string.
*/
private char[] _rgtchar;
public Xst()
{
_cch = 0;
_rgtchar = new char[0];
}
public Xst( byte[] data, int startOffset )
{
int offset = startOffset;
_cch = LittleEndian.getUShort( data, offset );
offset += LittleEndian.SHORT_SIZE;
_rgtchar = new char[_cch];
for ( int x = 0; x < _cch; x++ )
{
_rgtchar[x] = (char) LittleEndian.getShort( data, offset );
offset += LittleEndian.SHORT_SIZE;
}
}
public Xst( String str )
{
_cch = str.length();
_rgtchar = str.toCharArray();
}
@Override
public boolean equals( Object obj )
{
if ( this == obj )
return true;
if ( obj == null )
return false;
if ( getClass() != obj.getClass() )
return false;
Xst other = (Xst) obj;
if ( _cch != other._cch )
return false;
if ( !Arrays.equals( _rgtchar, other._rgtchar ) )
return false;
return true;
}
public String getAsJavaString()
{
return new String( _rgtchar );
}
/**
* An unsigned integer that specifies the number of characters that are
* contained in the rgtchar array.
*/
public int getCch()
{
return _cch;
}
/**
* An array of 16-bit Unicode characters that make up a string.
*/
public char[] getRgtchar()
{
return _rgtchar;
}
public int getSize()
{
return LittleEndian.SHORT_SIZE + _rgtchar.length * 2;
}
@Override
public int hashCode()
{
final int prime = 31;
int result = 1;
result = prime * result + _cch;
result = prime * result + Arrays.hashCode( _rgtchar );
return result;
}
public void serialize( byte[] data, int startOffset )
{
int offset = startOffset;
LittleEndian.putUShort( data, offset, _cch );
offset += LittleEndian.SHORT_SIZE;
for ( char c : _rgtchar )
{
LittleEndian.putShort( data, offset, (short) c );
offset += LittleEndian.SHORT_SIZE;
}
}
@Override
public String toString()
{
return new String( "Xst [" + _cch + "; " + _rgtchar + "]" );
}
}

2
src/scratchpad/src/org/apache/poi/hwpf/usermodel/Paragraph.java
View File

@ -607,7 +607,7 @@ public short getStyleIndex()
public boolean isInList()
{
return getIlvl() != 0 && getIlfo() != 0x000 && getIlfo() != 0xF801;
return getIlfo() != 0x000 && getIlfo() != 0xF801;
}
/**