diff options
Diffstat (limited to 'src/main/java/org/pdfbox/cmapparser/CMapParser.java')
| -rw-r--r-- | src/main/java/org/pdfbox/cmapparser/CMapParser.java | 285 |
1 files changed, 0 insertions, 285 deletions
diff --git a/src/main/java/org/pdfbox/cmapparser/CMapParser.java b/src/main/java/org/pdfbox/cmapparser/CMapParser.java deleted file mode 100644 index 5434bb7..0000000 --- a/src/main/java/org/pdfbox/cmapparser/CMapParser.java +++ /dev/null @@ -1,285 +0,0 @@ -/**
- * Copyright (c) 2003-2004, www.pdfbox.org
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- * 3. Neither the name of pdfbox; nor the names of its
- * contributors may be used to endorse or promote products derived from this
- * software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * http://www.pdfbox.org
- *
- */
-package org.pdfbox.cmapparser;
-
-import java.io.FileInputStream;
-import java.io.InputStream;
-import java.io.IOException;
-import java.io.RandomAccessFile;
-
-import java.util.List;
-
-import org.pdfbox.cmaptypes.CMap;
-import org.pdfbox.cmaptypes.CodespaceRange;
-
-import org.pdfbox.cos.COSArray;
-import org.pdfbox.cos.COSName;
-import org.pdfbox.cos.COSNumber;
-import org.pdfbox.cos.COSString;
-
-import org.pdfbox.pdfparser.PDFStreamParser;
-
-import org.pdfbox.util.PDFOperator;
-
-/**
- * This will parser a CMap stream.
- *
- * @author Ben Litchfield (ben@csh.rit.edu)
- * @version $Revision: 1.10 $
- */
-public class CMapParser
-{
- private static final String BEGIN_CODESPACE_RANGE = "begincodespacerange";
- private static final String BEGIN_BASE_FONT_CHAR = "beginbfchar";
- private static final String BEGIN_BASE_FONT_RANGE = "beginbfrange";
-
- private InputStream input;
- private CMap result;
- private RandomAccessFile file;
-
- /**
- * Creates a new instance of CMapParser.
- *
- * @param in The input stream to read data from.
- * @param raf The random access file from the document
- */
- public CMapParser( InputStream in, RandomAccessFile raf )
- {
- input = in;
- file = raf;
- }
-
- /**
- * This will get the results of the parsing. parse() must be called first.
- *
- * @return The parsed CMap file.
- */
- public CMap getResult()
- {
- return result;
- }
-
- /**
- * This will parse the stream and create a cmap object.
- *
- * @throws IOException If there is an error parsing the stream.
- */
- public void parse() throws IOException
- {
- result = new CMap();
- PDFStreamParser parser = new PDFStreamParser( input, file );
- parser.parse();
- List tokens = parser.getTokens();
- for( int i=0; i<tokens.size(); i++ )
- {
- Object token = tokens.get( i );
- if( token instanceof PDFOperator )
- {
- PDFOperator op = (PDFOperator)token;
- if( op.getOperation().equals( BEGIN_CODESPACE_RANGE ) )
- {
- COSNumber cosCount = (COSNumber)tokens.get( i-1 );
- for( int j=0; j<cosCount.intValue(); j++ )
- {
- i++;
- COSString startRange = (COSString)tokens.get( i );
- i++;
- COSString endRange = (COSString)tokens.get( i );
- CodespaceRange range = new CodespaceRange();
- range.setStart( startRange.getBytes() );
- range.setEnd( endRange.getBytes() );
- result.addCodespaceRange( range );
- }
- }
- else if( op.getOperation().equals( BEGIN_BASE_FONT_CHAR ) )
- {
- COSNumber cosCount = (COSNumber)tokens.get( i-1 );
- for( int j=0; j<cosCount.intValue(); j++ )
- {
- i++;
- COSString inputCode = (COSString)tokens.get( i );
- i++;
- Object nextToken = tokens.get( i );
- if( nextToken instanceof COSString )
- {
- byte[] bytes = ((COSString)nextToken).getBytes();
- String value = createStringFromBytes( bytes );
- result.addMapping( inputCode.getBytes(), value );
- }
- else if( nextToken instanceof COSName )
- {
- result.addMapping( inputCode.getBytes(), ((COSName)nextToken).getName() );
- }
- else
- {
- throw new IOException( "Error parsing CMap beginbfchar, expected{COSString " +
- "or COSName} and not " + nextToken );
- }
- }
- }
- else if( op.getOperation().equals( BEGIN_BASE_FONT_RANGE ) )
- {
- COSNumber cosCount = (COSNumber)tokens.get( i-1 );
-
- for( int j=0; j<cosCount.intValue(); j++ )
- {
- i++;
- COSString startCode = (COSString)tokens.get( i );
- i++;
- COSString endCode = (COSString)tokens.get( i );
- i++;
- Object nextToken = tokens.get( i );
- COSArray array = null;
- if( nextToken instanceof COSArray )
- {
- array = (COSArray)nextToken;
- }
-
- byte[] startBytes = startCode.getBytes();
- byte[] endBytes = endCode.getBytes();
- byte[] tokenBytes = null;
- if( array == null )
- {
- tokenBytes = ((COSString)nextToken).getBytes();
- }
- else
- {
- tokenBytes = ((COSString)array.getObject( 0 )).getBytes();
- }
-
- String value = null;
-
- int arrayIndex = 0;
- boolean done = false;
- while( !done )
- {
- if( compare( startBytes, endBytes ) >= 0 )
- {
- done = true;
- }
- value = createStringFromBytes( tokenBytes );
- result.addMapping( startBytes, value );
- increment( startBytes );
-
- if( array == null )
- {
- increment( tokenBytes );
- }
- else
- {
- if( arrayIndex < array.size() )
- {
- tokenBytes = ((COSString)array.getObject( arrayIndex++ )).getBytes();
- }
- }
- }
- }
- }
- }
- }
- }
-
- private void increment( byte[] data )
- {
- increment( data, data.length-1 );
- }
-
- private void increment( byte[] data, int position )
- {
- if( position > 0 && (data[position]+256)%256 == 255 )
- {
- data[position]=0;
- increment( data, position-1);
- }
- else
- {
- data[position] = (byte)(data[position]+1);
- }
- }
-
- private String createStringFromBytes( byte[] bytes ) throws IOException
- {
- String retval = null;
- if( bytes.length == 1 )
- {
- retval = new String( bytes );
- }
- else
- {
- retval = new String( bytes, "UTF-16BE" );
- }
- return retval;
- }
-
- private int compare( byte[] first, byte[] second )
- {
- int retval = 1;
- boolean done = false;
- for( int i=0; i<first.length && !done; i++ )
- {
- if( first[i] == second[i] )
- {
- //move to next position
- }
- else if( ((first[i]+256)%256) < ((second[i]+256)%256) )
- {
- done = true;
- retval = -1;
- }
- else
- {
- done = true;
- retval = 1;
- }
- }
- return retval;
- }
-
- /**
- * A simple class to test parsing of cmap files.
- *
- * @param args Some command line arguments.
- *
- * @throws Exception If there is an error parsing the file.
- */
- public static void main( String[] args ) throws Exception
- {
- if( args.length != 1 )
- {
- System.err.println( "usage: java org.pdfbox.cmapparser.CMapParser <CMAP File>" );
- System.exit( -1 );
- }
- CMapParser parser = new CMapParser( new FileInputStream( args[0] ), null );
- parser.parse();
- CMap result = parser.getResult();
- System.out.println( "Result:" + result );
- }
-}
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