Package org.apache.fontbox.cff

Class CFFParser

java.lang.Object

org.apache.fontbox.cff.CFFParser

public class CFFParser
extends Object

This class represents a parser for a CFF font.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	CFFParser.ByteSource	Source from which bytes may be read in the future.
(package private) static class	CFFParser.CFFBuiltInEncoding	Inner class representing a font's built-in CFF encoding.
private static class	CFFParser.CFFBytesource	Allows bytes to be re-read later by CFFParser.
private static class	CFFParser.DictData	Inner class holding the DictData of a CFF font.
private static class	CFFParser.EmptyCharsetCID	An empty charset in a malformed CID font.
private static class	CFFParser.EmptyCharsetType1	An empty charset in a malformed Type1 font.
private static class	CFFParser.Format0Charset	Inner class representing a Format0 charset.
private static class	CFFParser.Format0Encoding	Inner class representing a Format0 encoding.
private static class	CFFParser.Format0FDSelect	Format 0 FDSelect.
private static class	CFFParser.Format1Charset	Inner class representing a Format1 charset.
private static class	CFFParser.Format1Encoding	Inner class representing a Format1 encoding.
private static class	CFFParser.Format2Charset	Inner class representing a Format2 charset.
private static final class	CFFParser.Format3FDSelect	Format 3 FDSelect data.
private static class	CFFParser.Header	Inner class holding the header of a CFF font.
private static final class	CFFParser.Range3	Structure of a Range3 element.
private static final class	CFFParser.RangeMapping	Inner class representing a rang mapping for a CID charset.

Field Summary

Fields

Modifier and Type	Field	Description
private String	debugFontName
private static final org.apache.commons.logging.Log	LOG	Log instance.
private CFFParser.ByteSource	source
private String[]	stringIndex
private static final String	TAG_OTTO
private static final String	TAG_TTCF
private static final String	TAG_TTFONLY

Constructor Summary

Constructors

Constructor	Description
CFFParser()

Method Summary

Modifier and Type	Method	Description
private void	concatenateMatrix(List<Number> matrixDest, List<Number> matrixConcat)
private DataInput	createTaggedCFFDataInput(DataInput input)
private String	getString(CFFParser.DictData dict, String name)
List<CFFFont>	parse(byte[] bytes, CFFParser.ByteSource source)	Parse CFF font using byte array, also passing in a byte source for future use.
private List<CFFFont>	parse(DataInput input)	Parse CFF font using a DataInput as input.
List<CFFFont>	parse(RandomAccessRead randomAccessRead)	Parse CFF font using a RandomAccessRead as input.
private void	parseCIDFontDicts(DataInput input, CFFParser.DictData topDict, CFFCIDFont font, int nrOfcharStrings)	Parse dictionaries specific to a CIDFont.
void	parseFirstSubFontROS(RandomAccessRead randomAccessRead, FontHeaders outHeaders)	Extract "Registry", "Ordering" and "Supplement" properties from the first CFF subfont.
private CFFFont	parseFont(DataInput input, String name, byte[] topDictIndex)
private CFFCIDFont	parseROS(CFFParser.DictData topDict)	Extracts Registry, Ordering and Supplement from topDict["ROS"].
private void	parseType1Dicts(DataInput input, CFFParser.DictData topDict, CFFType1Font font, CFFCharset charset)	Parse dictionaries specific to a Type 1-equivalent font.
private CFFCharset	readCharset(DataInput dataInput, int nGlyphs, boolean isCIDFont)
private static CFFParser.DictData	readDictData(DataInput input)
private static CFFParser.DictData	readDictData(DataInput input, int offset, int dictSize)
private CFFEncoding	readEncoding(DataInput dataInput, CFFCharset charset)
private static CFFParser.DictData.Entry	readEntry(DataInput input)
private static FDSelect	readFDSelect(DataInput dataInput, int nGlyphs)	Read the FDSelect Data according to the format.
private CFFParser.Format0Charset	readFormat0Charset(DataInput dataInput, int nGlyphs, boolean isCIDFont)
private CFFParser.Format0Encoding	readFormat0Encoding(DataInput dataInput, CFFCharset charset, int format)
private static CFFParser.Format0FDSelect	readFormat0FDSelect(DataInput dataInput, int nGlyphs)	Read the Format 0 of the FDSelect data structure.
private CFFParser.Format1Charset	readFormat1Charset(DataInput dataInput, int nGlyphs, boolean isCIDFont)
private CFFParser.Format1Encoding	readFormat1Encoding(DataInput dataInput, CFFCharset charset, int format)
private CFFParser.Format2Charset	readFormat2Charset(DataInput dataInput, int nGlyphs, boolean isCIDFont)
private static CFFParser.Format3FDSelect	readFormat3FDSelect(DataInput dataInput)	Read the Format 3 of the FDSelect data structure.
private static CFFParser.Header	readHeader(DataInput input)
private static byte[][]	readIndexData(DataInput input)
private static int[]	readIndexDataOffsets(DataInput input)
private static Integer	readIntegerNumber(DataInput input, int b0)
private static long	readLong(DataInput input)
private static int	readOffSize(DataInput input)
private static String	readOperator(DataInput input, int b0)
private Map<String,Object>	readPrivateDict(CFFParser.DictData privateDict)
private static Double	readRealNumber(DataInput input)
private String	readString(int index)
private static String[]	readStringIndexData(DataInput input)
private void	readSupplement(DataInput dataInput, CFFParser.CFFBuiltInEncoding encoding)
private static String	readTagName(DataInput input)
private DataInput	skipHeader(DataInput input)
String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Details

LOG

private static final org.apache.commons.logging.Log LOG

Log instance.

TAG_OTTO

private static final String TAG_OTTO

See Also:

• Constant Field Values

TAG_TTCF

private static final String TAG_TTCF

See Also:

• Constant Field Values

TAG_TTFONLY

private static final String TAG_TTFONLY

See Also:

• Constant Field Values

stringIndex

private String[] stringIndex

source

private CFFParser.ByteSource source

debugFontName

private String debugFontName

Constructor Details

CFFParser

public CFFParser()

Method Details

parse

public List<CFFFont> parse(byte[] bytes,
 CFFParser.ByteSource source)
                    throws IOException

Parse CFF font using byte array, also passing in a byte source for future use.

Parameters:

bytes - source bytes

source - source to re-read bytes from in the future

Returns:

the parsed CFF fonts

Throws:

IOException - If there is an error reading from the stream

parse

public List<CFFFont> parse(RandomAccessRead randomAccessRead)
                    throws IOException

Parse CFF font using a RandomAccessRead as input.

Parameters:

randomAccessRead - the source to be parsed

Returns:

the parsed CFF fonts

Throws:

IOException - If there is an error reading from the stream

parseFirstSubFontROS

public void parseFirstSubFontROS(RandomAccessRead randomAccessRead,
 FontHeaders outHeaders)
                          throws IOException

Extract "Registry", "Ordering" and "Supplement" properties from the first CFF subfont.

Parameters:

randomAccessRead - the source to be parsed

outHeaders - where to put results

Throws:

IOException - If there is an error reading from the stream

skipHeader

private DataInput skipHeader(DataInput input)
                      throws IOException

Throws:

IOException

parse

private List<CFFFont> parse(DataInput input)
                     throws IOException

Parse CFF font using a DataInput as input.

Parameters:

input - the source to be parsed

Throws:

IOException - If there is an error reading from the stream

createTaggedCFFDataInput

private DataInput createTaggedCFFDataInput(DataInput input)
                                    throws IOException

Throws:

IOException

readTagName

private static String readTagName(DataInput input)
                           throws IOException

Throws:

IOException

readLong

private static long readLong(DataInput input)
                      throws IOException

Throws:

IOException

readOffSize

private static int readOffSize(DataInput input)
                        throws IOException

Throws:

IOException

readHeader

private static CFFParser.Header readHeader(DataInput input)
                                    throws IOException

Throws:

IOException

readIndexDataOffsets

private static int[] readIndexDataOffsets(DataInput input)
                                   throws IOException

Throws:

IOException

readIndexData

private static byte[][] readIndexData(DataInput input)
                               throws IOException

Throws:

IOException

readStringIndexData

private static String[] readStringIndexData(DataInput input)
                                     throws IOException

Throws:

IOException

readDictData

private static CFFParser.DictData readDictData(DataInput input)
                                        throws IOException

Throws:

IOException

readDictData

private static CFFParser.DictData readDictData(DataInput input,
 int offset,
 int dictSize)
                                        throws IOException

Throws:

IOException

readEntry

private static CFFParser.DictData.Entry readEntry(DataInput input)
                                           throws IOException

Throws:

IOException

readOperator

private static String readOperator(DataInput input,
 int b0)
                            throws IOException

Throws:

IOException

readIntegerNumber

private static Integer readIntegerNumber(DataInput input,
 int b0)
                                  throws IOException

Throws:

IOException

readRealNumber

private static Double readRealNumber(DataInput input)
                              throws IOException

Throws:

IOException

parseROS

private CFFCIDFont parseROS(CFFParser.DictData topDict)
                     throws IOException

Extracts Registry, Ordering and Supplement from topDict["ROS"].

Throws:

IOException

parseFont

private CFFFont parseFont(DataInput input,
 String name,
 byte[] topDictIndex)
                   throws IOException

Throws:

IOException

concatenateMatrix

private void concatenateMatrix(List<Number> matrixDest,
 List<Number> matrixConcat)

parseCIDFontDicts

private void parseCIDFontDicts(DataInput input,
 CFFParser.DictData topDict,
 CFFCIDFont font,
 int nrOfcharStrings)
                        throws IOException

Parse dictionaries specific to a CIDFont.

Throws:

IOException

readPrivateDict

private Map<String,Object> readPrivateDict(CFFParser.DictData privateDict)

parseType1Dicts

private void parseType1Dicts(DataInput input,
 CFFParser.DictData topDict,
 CFFType1Font font,
 CFFCharset charset)
                      throws IOException

Parse dictionaries specific to a Type 1-equivalent font.

Throws:

IOException

readString

private String readString(int index)
                   throws IOException

Throws:

IOException

getString

private String getString(CFFParser.DictData dict,
 String name)
                  throws IOException

Throws:

IOException

readEncoding

private CFFEncoding readEncoding(DataInput dataInput,
 CFFCharset charset)
                          throws IOException

Throws:

IOException

readFormat0Encoding

private CFFParser.Format0Encoding readFormat0Encoding(DataInput dataInput,
 CFFCharset charset,
 int format)
                                               throws IOException

Throws:

IOException

readFormat1Encoding

private CFFParser.Format1Encoding readFormat1Encoding(DataInput dataInput,
 CFFCharset charset,
 int format)
                                               throws IOException

Throws:

IOException

readSupplement

private void readSupplement(DataInput dataInput,
 CFFParser.CFFBuiltInEncoding encoding)
                     throws IOException

Throws:

IOException

readFDSelect

private static FDSelect readFDSelect(DataInput dataInput,
 int nGlyphs)
                              throws IOException

Read the FDSelect Data according to the format.

Parameters:

dataInput -

nGlyphs -

Returns:

the FDSelect data

Throws:

IOException

readFormat0FDSelect

private static CFFParser.Format0FDSelect readFormat0FDSelect(DataInput dataInput,
 int nGlyphs)
                                                      throws IOException

Read the Format 0 of the FDSelect data structure.

Parameters:

dataInput -

nGlyphs -

Returns:

the Format 0 of the FDSelect data

Throws:

IOException

readFormat3FDSelect

private static CFFParser.Format3FDSelect readFormat3FDSelect(DataInput dataInput)
                                                      throws IOException

Read the Format 3 of the FDSelect data structure.

Parameters:

dataInput -

Returns:

the Format 3 of the FDSelect data

Throws:

IOException

readCharset

private CFFCharset readCharset(DataInput dataInput,
 int nGlyphs,
 boolean isCIDFont)
                        throws IOException

Throws:

IOException

readFormat0Charset

private CFFParser.Format0Charset readFormat0Charset(DataInput dataInput,
 int nGlyphs,
 boolean isCIDFont)
                                             throws IOException

Throws:

IOException

readFormat1Charset

private CFFParser.Format1Charset readFormat1Charset(DataInput dataInput,
 int nGlyphs,
 boolean isCIDFont)
                                             throws IOException

Throws:

IOException

readFormat2Charset

private CFFParser.Format2Charset readFormat2Charset(DataInput dataInput,
 int nGlyphs,
 boolean isCIDFont)
                                             throws IOException

Throws:

IOException

toString

public String toString()

Overrides:

toString in class Object