Package org.apache.fontbox.cff

Class CFFParser

java.lang.Object

org.apache.fontbox.cff.CFFParser

public class CFFParser
extends java.lang.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 class	CFFParser.Format3FDSelect	Format 3 FDSelect data.
private static class	CFFParser.Header	Inner class holding the header of a CFF font.
private static class	CFFParser.Range3	Structure of a Range3 element.
private static class	CFFParser.RangeMapping	Inner class representing a rang mapping for a CID charset.

Field Summary

Fields

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

Constructor Summary

Constructors

Constructor	Description
CFFParser()

Method Summary

Modifier and Type	Method	Description
private void	concatenateMatrix(java.util.List<java.lang.Number> matrixDest, java.util.List<java.lang.Number> matrixConcat)
private DataInput	createTaggedCFFDataInput(DataInput input)
private java.lang.String	getString(CFFParser.DictData dict, java.lang.String name)
java.util.List<CFFFont>	parse(byte[] bytes, CFFParser.ByteSource source)	Parse CFF font using byte array, also passing in a byte source for future use.
private java.util.List<CFFFont>	parse(DataInput input)	Parse CFF font using a DataInput as input.
java.util.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, java.lang.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 java.lang.Integer	readIntegerNumber(DataInput input, int b0)
private static long	readLong(DataInput input)
private static int	readOffSize(DataInput input)
private static java.lang.String	readOperator(DataInput input, int b0)
private java.util.Map<java.lang.String,java.lang.Object>	readPrivateDict(CFFParser.DictData privateDict)
private static java.lang.Double	readRealNumber(DataInput input)
private java.lang.String	readString(int index)
private static java.lang.String[]	readStringIndexData(DataInput input)
private void	readSupplement(DataInput dataInput, CFFParser.CFFBuiltInEncoding encoding)
private static java.lang.String	readTagName(DataInput input)
private DataInput	skipHeader(DataInput input)
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

LOG

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

Log instance.

TAG_OTTO

private static final java.lang.String TAG_OTTO

See Also:

Constant Field Values

TAG_TTCF

private static final java.lang.String TAG_TTCF

See Also:

Constant Field Values

TAG_TTFONLY

private static final java.lang.String TAG_TTFONLY

See Also:

Constant Field Values

stringIndex

private java.lang.String[] stringIndex

source

private CFFParser.ByteSource source

debugFontName

private java.lang.String debugFontName

Constructor Detail

CFFParser

public CFFParser()

Method Detail

parse

public java.util.List<CFFFont> parse(byte[] bytes,
                                     CFFParser.ByteSource source)
                              throws java.io.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:

java.io.IOException - If there is an error reading from the stream

parse

public java.util.List<CFFFont> parse(RandomAccessRead randomAccessRead)
                              throws java.io.IOException

Parse CFF font using a RandomAccessRead as input.

Parameters:

randomAccessRead - the source to be parsed

Returns:

the parsed CFF fonts

Throws:

java.io.IOException - If there is an error reading from the stream

parseFirstSubFontROS

public void parseFirstSubFontROS(RandomAccessRead randomAccessRead,
                                 FontHeaders outHeaders)
                          throws java.io.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:

java.io.IOException - If there is an error reading from the stream

skipHeader

private DataInput skipHeader(DataInput input)
                      throws java.io.IOException

Throws:

java.io.IOException

parse

private java.util.List<CFFFont> parse(DataInput input)
                               throws java.io.IOException

Parse CFF font using a DataInput as input.

Parameters:

input - the source to be parsed

Throws:

java.io.IOException - If there is an error reading from the stream

createTaggedCFFDataInput

private DataInput createTaggedCFFDataInput(DataInput input)
                                    throws java.io.IOException

Throws:

java.io.IOException

readTagName

private static java.lang.String readTagName(DataInput input)
                                     throws java.io.IOException

Throws:

java.io.IOException

readLong

private static long readLong(DataInput input)
                      throws java.io.IOException

Throws:

java.io.IOException

readOffSize

private static int readOffSize(DataInput input)
                        throws java.io.IOException

Throws:

java.io.IOException

readHeader

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

Throws:

java.io.IOException

readIndexDataOffsets

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

Throws:

java.io.IOException

readIndexData

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

Throws:

java.io.IOException

readStringIndexData

private static java.lang.String[] readStringIndexData(DataInput input)
                                               throws java.io.IOException

Throws:

java.io.IOException

readDictData

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

Throws:

java.io.IOException

readDictData

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

Throws:

java.io.IOException

readEntry

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

Throws:

java.io.IOException

readOperator

private static java.lang.String readOperator(DataInput input,
                                             int b0)
                                      throws java.io.IOException

Throws:

java.io.IOException

readIntegerNumber

private static java.lang.Integer readIntegerNumber(DataInput input,
                                                   int b0)
                                            throws java.io.IOException

Throws:

java.io.IOException

readRealNumber

private static java.lang.Double readRealNumber(DataInput input)
                                        throws java.io.IOException

Throws:

java.io.IOException

parseROS

private CFFCIDFont parseROS(CFFParser.DictData topDict)
                     throws java.io.IOException

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

Throws:

java.io.IOException

parseFont

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

Throws:

java.io.IOException

concatenateMatrix

private void concatenateMatrix(java.util.List<java.lang.Number> matrixDest,
                               java.util.List<java.lang.Number> matrixConcat)

parseCIDFontDicts

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

Parse dictionaries specific to a CIDFont.

Throws:

java.io.IOException

readPrivateDict

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

parseType1Dicts

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

Parse dictionaries specific to a Type 1-equivalent font.

Throws:

java.io.IOException

readString

private java.lang.String readString(int index)
                             throws java.io.IOException

Throws:

java.io.IOException

getString

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

Throws:

java.io.IOException

readEncoding

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

Throws:

java.io.IOException

readFormat0Encoding

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

Throws:

java.io.IOException

readFormat1Encoding

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

Throws:

java.io.IOException

readSupplement

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

Throws:

java.io.IOException

readFDSelect

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

Read the FDSelect Data according to the format.

Parameters:

dataInput -

nGlyphs -

Returns:

the FDSelect data

Throws:

java.io.IOException

readFormat0FDSelect

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

Read the Format 0 of the FDSelect data structure.

Parameters:

dataInput -

nGlyphs -

Returns:

the Format 0 of the FDSelect data

Throws:

java.io.IOException

readFormat3FDSelect

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

Read the Format 3 of the FDSelect data structure.

Parameters:

dataInput -

Returns:

the Format 3 of the FDSelect data

Throws:

java.io.IOException

readCharset

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

Throws:

java.io.IOException

readFormat0Charset

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

Throws:

java.io.IOException

readFormat1Charset

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

Throws:

java.io.IOException

readFormat2Charset

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

Throws:

java.io.IOException

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object