From 05e419b00ef64a42ef3d3243755f5a21b3bbc8ea Mon Sep 17 00:00:00 2001 From: "Andrew C. Oliver" Date: Fri, 1 Mar 2002 12:59:50 +0000 Subject: [PATCH] added Ryan's changes git-svn-id: https://svn.apache.org/repos/asf/jakarta/poi/trunk@352122 13f79535-47bb-0310-9956-ffa450edef68 --- .../poi/hdf/extractor/WordDocument.java | 291 +++++++++++------- 1 file changed, 184 insertions(+), 107 deletions(-) diff --git a/src/scratchpad/src/org/apache/poi/hdf/extractor/WordDocument.java b/src/scratchpad/src/org/apache/poi/hdf/extractor/WordDocument.java index 534ccd7c27..5d7f558325 100644 --- a/src/scratchpad/src/org/apache/poi/hdf/extractor/WordDocument.java +++ b/src/scratchpad/src/org/apache/poi/hdf/extractor/WordDocument.java @@ -61,55 +61,76 @@ import org.apache.poi.hdf.extractor.data.*; import java.util.*; import java.io.*; import javax.swing.*; -//import javax.swing.text.StyleContext; + import java.awt.*; import org.apache.poi.poifs.filesystem.POIFSFileSystem; import org.apache.poi.poifs.filesystem.POIFSDocument; -import org.apache.poi.poifs.filesystem.Entry; +import org.apache.poi.poifs.filesystem.DocumentEntry; import org.apache.poi.util.LittleEndian; /** - * Comment me + * This class contains the main functionality for the Word file "reader". Much + * of the code in this class is based on the Word 97 document file format. Only + * works for non-complex files * - * @author Ryan Ackley + * @author Ryan Ackley */ public class WordDocument { + /** byte buffer containing the main Document stream*/ byte[] _header; - + /** contains all style information for this document see Word 97 Doc spec*/ StyleSheet _styleSheet; + /** contains All list information for this document*/ ListTables _listTables; + /** contains global Document properties for this document*/ DOP _docProps = new DOP(); + int _currentList = -1; int _tableSize; int _sectionCounter = 1; + /** fonts available for this document*/ FontTable _fonts; + /** document's text blocks*/ BTreeSet _text = new BTreeSet(); + /** document's character runs */ BTreeSet _characterTable = new BTreeSet(); + /** document's paragraphs*/ BTreeSet _paragraphTable = new BTreeSet(); + /** doucment's sections*/ BTreeSet _sectionTable = new BTreeSet(); - //WordDocWriter _writer = this; + /** used for XSL-FO conversion*/ StringBuffer _headerBuffer = new StringBuffer(); + /** used for XSL-FO conversion*/ StringBuffer _bodyBuffer = new StringBuffer(); + /** used for XSL-FO table conversion*/ StringBuffer _cellBuffer; - + /** used for XSL-FO table conversion*/ ArrayList _cells; + /** used for XSL-FO table conversion*/ ArrayList _table; + /** document's header and footer information*/ byte[] _plcfHdd; + + /** starting position of text in main document stream*/ int _fcMin; + /** length of main document text stream*/ int _ccpText; + /** length of footnotes text*/ int _ccpFtn; - + /** OLE stuff*/ private InputStream istream; + /** OLE stuff*/ private POIFSFileSystem filesystem; - + + //used internally private static int HEADER_EVEN_INDEX = 0; private static int HEADER_ODD_INDEX = 1; private static int FOOTER_EVEN_INDEX = 2; @@ -117,7 +138,10 @@ public class WordDocument private static int HEADER_FIRST_INDEX = 4; private static int FOOTER_FIRST_INDEX = 5; - + /** + * right now this function takes one parameter: a Word file, and outputs an + * XSL-FO document at c:\test.xml (this is hardcoded) + */ public static void main(String args[]) { /*try @@ -134,7 +158,7 @@ public class WordDocument }*/ try { - WordDocument file = new WordDocument(args[0], "r"); + WordDocument file = new WordDocument(args[0]); file.closeDoc(); } catch(Exception e) @@ -143,6 +167,13 @@ public class WordDocument } System.exit(0); } + /** + * Spits out the document text + * + * @param out The Writer to write the text to. + * @throws IOException if there is a problem while reading from the file or + * writing out the text. + */ public void writeAllText(Writer out) throws IOException { int textStart = Utils.convertBytesToInt(_header, 0x18); @@ -177,18 +208,30 @@ public class WordDocument } } } - public WordDocument(String fileName, String mode) throws IOException + /** + * Constructs a Word document from fileName. Parses the document and places + * all the important stuff into data structures. + * + * @param fileName The name of the file to read. + * @throws IOException if there is a problem while parsing the document. + */ + public WordDocument(String fileName) throws IOException { -// super(fileName, mode); - - + + + //do Ole stuff istream = new FileInputStream(fileName); filesystem = new POIFSFileSystem(istream); - + + //get important stuff from the Header block and parse all the + //data structures readFIB(); + //get the SEPS for the main document text ArrayList sections = findProperties(_fcMin, _fcMin + _ccpText, _sectionTable.root); + //iterate through sections, paragraphs, and character runs doing what + //you will with the data. int size = sections.size(); for(int x = 0; x < size; x++) { @@ -198,86 +241,110 @@ public class WordDocument SEP sep = (SEP)StyleSheet.uncompressProperty(node.getSepx(), new SEP(), _styleSheet); writeSection(Math.max(_fcMin, start), Math.min(_fcMin + _ccpText, end), sep, _text, _paragraphTable, _characterTable, _styleSheet); } - + //finish istream.close(); } + /** + * Extracts the main document stream from the POI file then hands off to other + * functions that parse other areas. + * + * @throws IOException + */ private void readFIB() throws IOException { - //PropertySet headerProps = (PropertySet)_propertySetsHT.get("WordDocument"); - Entry headerProps = filesystem.getRoot().getEntry("WordDocument"); - - // if(headerProps.getSize() >= 4096) - // { - //_header = createBufferFromBBD(headerProps.getStartBlock()); - _header = new byte[4096]; - filesystem.createDocumentInputStream("WordDocument").read(_header); - // } + //get the main document stream + DocumentEntry headerProps = + (DocumentEntry)filesystem.getRoot().getEntry("WordDocument"); + + //I call it the header but its also the main document stream + _header = new byte[headerProps.getSize()]; + filesystem.createDocumentInputStream("WordDocument").read(_header); + + //Get the information we need from the header int info = LittleEndian.getShort(_header, 0xa); - _fcMin = Utils.convertBytesToInt(_header, 0x18); - _ccpText = Utils.convertBytesToInt(_header, 0x4c); - _ccpFtn = Utils.convertBytesToInt(_header, 0x50); + _fcMin = LittleEndian.getInt(_header, 0x18); + _ccpText = LittleEndian.getInt(_header, 0x4c); + _ccpFtn = LittleEndian.getInt(_header, 0x50); - int charPLC = Utils.convertBytesToInt(_header, 0xfa); - int charPlcSize = Utils.convertBytesToInt(_header, 0xfe); - int parPLC = Utils.convertBytesToInt(_header, 0x102); - int parPlcSize = Utils.convertBytesToInt(_header, 0x106); + int charPLC = LittleEndian.getInt(_header, 0xfa); + int charPlcSize = LittleEndian.getInt(_header, 0xfe); + int parPLC = LittleEndian.getInt(_header, 0x102); + int parPlcSize = LittleEndian.getInt(_header, 0x106); boolean useTable1 = (info & 0x200) != 0; + //process the text and formatting properties processComplexFile(useTable1, charPLC, charPlcSize, parPLC, parPlcSize); } - private boolean processComplexFile(boolean useTable1, int charTable, + /** + * Extracts the correct Table stream from the POI filesystem then hands off to + * other functions to process text and formatting info. the name is based on + * the fact that in Word 8(97) all text (not character or paragraph formatting) + * is stored in complex format. + * + * @param useTable1 boolean that specifies if we should use table1 or table0 + * @param charTable offset in table stream of character property bin table + * @param charPlcSize size of character property bin table + * @param parTable offset in table stream of paragraph property bin table. + * @param parPlcSize size of paragraph property bin table. + * @return boolean indocating success of + * @throws IOException + */ + private void processComplexFile(boolean useTable1, int charTable, int charPlcSize, int parTable, int parPlcSize) throws IOException { - int complexOffset = Utils.convertBytesToInt(_header, 0x1a2); - //int complexSize = Utils.convertBytesToInt(_header, 0x1a6); - //if(complexSize <= 0) - //{ - // return false; - //} + //get the location of the piece table + int complexOffset = LittleEndian.getInt(_header, 0x1a2); String tablename=null; - Entry tableProps = null; + DocumentEntry tableEntry = null; if(useTable1) { - tableProps = filesystem.getRoot().getEntry("1Table"); tablename="1Table"; } else { - tableProps = filesystem.getRoot().getEntry("0Table"); tablename="0Table"; } - //get table properties - //int size = tableProps.getSize(); - int size = 4096; //hardcoded -- need to learn more about new POIFS api..?? - //int startBlock = tableProps.getStartBlock(); + tableEntry = (DocumentEntry)filesystem.getRoot().getEntry(tablename); + //load the table stream into a buffer + int size = tableEntry.getSize(); byte[] tableStream = new byte[size]; - //big enough to use BBD? - if(size >= 4096) - { - filesystem.createDocumentInputStream(tablename).read(tableStream); //createBufferFromBBD(startBlock); - } + filesystem.createDocumentInputStream(tablename).read(tableStream); + + //init the DOP for this document initDocProperties(tableStream); + //load the header/footer raw data for this document initPclfHdd(tableStream); + //parse out the text locations findText(tableStream, complexOffset); + //parse out text formatting findFormatting(tableStream, charTable, charPlcSize, parTable, parPlcSize); - return true; - } + /** + * Goes through the piece table and parses out the info regarding the text + * blocks. For Word 97 and greater all text is stored in the "complex" way + * because of unicode. + * + * @param tableStream buffer containing the main table stream. + * @param beginning of the complex data. + * @throws IOException + */ private void findText(byte[] tableStream, int complexOffset) throws IOException { //actual text int pos = complexOffset; + //skips through the prms before we reach the piece table. These contain data + //for actual fast saved files while(tableStream[pos] == 1) { pos++; - int skip = Utils.convertBytesToShort(tableStream, pos); + int skip = LittleEndian.getShort(tableStream, pos); pos += 2 + skip; } if(tableStream[pos] != 2) @@ -286,12 +353,13 @@ public class WordDocument } else { - int pieceTableSize = Utils.convertBytesToInt(tableStream, ++pos); + //parse out the text pieces + int pieceTableSize = LittleEndian.getInt(tableStream, ++pos); pos += 4; int pieces = (pieceTableSize - 4) / 12; for (int x = 0; x < pieces; x++) { - int filePos = Utils.convertBytesToInt(tableStream, pos + ((pieces + 1) * 4) + (x * 8) + 2); + int filePos = LittleEndian.getInt(tableStream, pos + ((pieces + 1) * 4) + (x * 8) + 2); boolean unicode = false; if ((filePos & 0x40000000) == 0) { @@ -303,8 +371,8 @@ public class WordDocument filePos &= ~(0x40000000);//gives me FC in doc stream filePos /= 2; } - int totLength = Utils.convertBytesToInt(tableStream, pos + (x + 1) * 4) - - Utils.convertBytesToInt(tableStream, pos + (x * 4)); + int totLength = LittleEndian.getInt(tableStream, pos + (x + 1) * 4) - + LittleEndian.getInt(tableStream, pos + (x * 4)); TextPiece piece = new TextPiece(filePos, totLength, unicode); _text.add(piece); @@ -313,11 +381,16 @@ public class WordDocument } } - private void printText(CHP chp, byte[] grpprl, int filePos, int length) - { - - } + /** + * Does all of the formatting parsing + * + * @param tableStream Main table stream buffer. + * @param charOffset beginning of the character bin table. + * @param chrPlcSize size of the char bin table. + * @param parOffset offset of the paragraph bin table. + * @param size of the paragraph bin table. + */ private void findFormatting(byte[] tableStream, int charOffset, int charPlcSize, int parOffset, int parPlcSize) throws IOException { @@ -330,26 +403,25 @@ public class WordDocument //Get all the chpx info and store it int arraySize = (charPlcSize - 4)/8; - //int[][] parFkpTable = new int[arraySize][2]; + //first we must go through the bin table and find the fkps for(int x = 0; x < arraySize; x++) { - //get fc of the start of the paragraph - //parFkpTable[x][0] = Utils.convertBytesToInt(tableStream, parOffset + (x * 4)); - //get pn containing the chpx for the paragraph - //parFkpTable[x][1] = Utils.convertBytesToInt(tableStream, parOffset + (4 * (arraySize + 1) + (4 * x))); - int PN = Utils.convertBytesToInt(tableStream, charOffset + (4 * (arraySize + 1) + (4 * x))); + + //get page number(has nothing to do with document page) + //containing the chpx for the paragraph + int PN = LittleEndian.getInt(tableStream, charOffset + (4 * (arraySize + 1) + (4 * x))); byte[] fkp = new byte[512]; System.arraycopy(_header, (PN * 512), fkp, 0, 512); - //take each fkp and get the paps + //take each fkp and get the chpxs int crun = Utils.convertUnsignedByteToInt(fkp[511]); for(int y = 0; y < crun; y++) { //get the beginning fc of each paragraph text run - int fcStart = Utils.convertBytesToInt(fkp, y * 4); - int fcEnd = Utils.convertBytesToInt(fkp, (y+1) * 4); + int fcStart = LittleEndian.getInt(fkp, y * 4); + int fcEnd = LittleEndian.getInt(fkp, (y+1) * 4); //get the offset in fkp of the papx for this paragraph int chpxOffset = 2 * Utils.convertUnsignedByteToInt(fkp[((crun + 1) * 4) + y]); @@ -376,7 +448,7 @@ public class WordDocument //first we must go through the bin table and find the fkps for(int x = 0; x < arraySize; x++) { - int PN = Utils.convertBytesToInt(tableStream, parOffset + (4 * (arraySize + 1) + (4 * x))); + int PN = LittleEndian.getInt(tableStream, parOffset + (4 * (arraySize + 1) + (4 * x))); byte[] fkp = new byte[512]; System.arraycopy(_header, (PN * 512), fkp, 0, 512); @@ -385,8 +457,8 @@ public class WordDocument for(int y = 0; y < crun; y++) { //get the beginning fc of each paragraph text run - int fcStart = Utils.convertBytesToInt(fkp, y * 4); - int fcEnd = Utils.convertBytesToInt(fkp, (y+1) * 4); + int fcStart = LittleEndian.getInt(fkp, y * 4); + int fcEnd = LittleEndian.getInt(fkp, (y+1) * 4); //get the offset in fkp of the papx for this paragraph int papxOffset = 2 * Utils.convertUnsignedByteToInt(fkp[((crun + 1) * 4) + (y * 13)]); int size = 2 * Utils.convertUnsignedByteToInt(fkp[papxOffset]); @@ -406,6 +478,7 @@ public class WordDocument } } + //find sections int fcMin = Utils.convertBytesToInt(_header, 0x18); int plcfsedFC = Utils.convertBytesToInt(_header, 0xca); @@ -427,17 +500,16 @@ public class WordDocument System.arraycopy(_header, sepxStart + 2, sepx, 0, sepxSize); SepxNode node = new SepxNode(x + 1, sectionStart, sectionEnd, sepx); _sectionTable.add(node); - //HeaderFooter[] hdrftr = findSectionHdrFtr(x); } } + public void openDoc() { _headerBuffer.append("\r\n"); _headerBuffer.append("\r\n"); _headerBuffer.append("\r\n"); - //_headerBuffer.append("\r\n"); } private HeaderFooter findSectionHdrFtr(int type, int index) @@ -482,10 +554,15 @@ public class WordDocument } return retValue; } + /** + * inits this document DOP structure. + * + * @param tableStream The documents table stream. + */ private void initDocProperties(byte[] tableStream) { - int pos = Utils.convertBytesToInt(_header, 0x192); - int size = Utils.convertBytesToInt(_header, 0x196); + int pos = LittleEndian.getInt(_header, 0x192); + int size = LittleEndian.getInt(_header, 0x196); byte[] dop = new byte[size]; System.arraycopy(tableStream, pos, dop, 0, size); @@ -493,13 +570,13 @@ public class WordDocument _docProps._fFacingPages = (dop[0] & 0x1) > 0; _docProps._fpc = (dop[0] & 0x60) >> 5; - short num = Utils.convertBytesToShort(dop, 2); + short num = LittleEndian.getShort(dop, 2); _docProps._rncFtn = (num & 0x3); _docProps._nFtn = (short)(num & 0xfffc) >> 2; - num = Utils.convertBytesToShort(dop, 52); + num = LittleEndian.getShort(dop, 52); _docProps._rncEdn = num & 0x3; _docProps._nEdn = (short)(num & 0xfffc) >> 2; - num = Utils.convertBytesToShort(dop, 54); + num = LittleEndian.getShort(dop, 54); _docProps._epc = num & 0x3; } @@ -1568,18 +1645,23 @@ public class WordDocument return "solid"; } } + /** + * creates the List data + * + * @param tableStream Main table stream buffer. + */ private void createListTables(byte[] tableStream) { - int lfoOffset = Utils.convertBytesToInt(_header, 0x2ea); - int lfoSize = Utils.convertBytesToInt(_header, 0x2ee); + int lfoOffset = LittleEndian.getInt(_header, 0x2ea); + int lfoSize = LittleEndian.getInt(_header, 0x2ee); byte[] plflfo = new byte[lfoSize]; System.arraycopy(tableStream, lfoOffset, plflfo, 0, lfoSize); - int lstOffset = Utils.convertBytesToInt(_header, 0x2e2); - int lstSize = Utils.convertBytesToInt(_header, 0x2e2); + int lstOffset = LittleEndian.getInt(_header, 0x2e2); + int lstSize = LittleEndian.getInt(_header, 0x2e2); if(lstOffset > 0 && lstSize > 0) { lstSize = lfoOffset - lstOffset; @@ -1589,42 +1671,37 @@ public class WordDocument } } + /** + * Creates the documents StyleSheet + * + * @param tableStream Main table stream buffer. + * + */ private void createStyleSheet(byte[] tableStream) { - int stshIndex = Utils.convertBytesToInt(_header, 0xa2); - int stshSize = Utils.convertBytesToInt(_header, 0xa6); + int stshIndex = LittleEndian.getInt(_header, 0xa2); + int stshSize = LittleEndian.getInt(_header, 0xa6); byte[] stsh = new byte[stshSize]; System.arraycopy(tableStream, stshIndex, stsh, 0, stshSize); _styleSheet = new StyleSheet(stsh); } + /** + * creates the Font table + * + * @param tableStream Main table stream buffer. + */ private void createFontTable(byte[] tableStream) { - int fontTableIndex = Utils.convertBytesToInt(_header, 0x112); - int fontTableSize = Utils.convertBytesToInt(_header, 0x116); + int fontTableIndex = LittleEndian.getInt(_header, 0x112); + int fontTableSize = LittleEndian.getInt(_header, 0x116); byte[] fontTable = new byte[fontTableSize]; System.arraycopy(tableStream, fontTableIndex, fontTable, 0, fontTableSize); _fonts = new FontTable(fontTable); } -// private byte[] createBufferFromBBD(int startBlock) throws IOException -// { -// -// int[] blockChain = readChain(_big_block_depot, startBlock); -// byte[] streamBuffer = new byte[512 * blockChain.length]; -// -// -// for(int x = 0; x < blockChain.length; x++) -// { -// byte[] bigBlock = new byte[512]; -// seek((blockChain[x] + 1) * 512); -// read(bigBlock); -// System.arraycopy(bigBlock, 0, streamBuffer, x * 512, 512); -// } -// return streamBuffer; -// -// } + private void overrideCellBorder(int row, int col, int height, int width, TC tc, TAP tap) { -- 2.39.5