de.intarsys.pdf.encoding
Class Encoding

java.lang.Object
  de.intarsys.pdf.encoding.Encoding

Direct Known Subclasses:

AFMEncoding, CMapEncoding, DifferenceEncoding, FontSpecificEncoding, MappedEncoding, SymbolEncoding

public abstract class Encoding
extends Object

An Encoding defines the mapping from a one byte codepoint to a glyph name in the font.

Every font has a built in encoding that can be changed by adding an explicit encoding to a PDFont. This explicit change may be in the form of a "differences" encoding in an explicit dictionary or by means of a named encoding, one of "MacRomanEncoding" or "WinAnsiEncoding".

todo 2 "MacExpertEncoding" is not supported.

If no encoding is found in the font implementation or the font dictionary, "StandardEncoding" is used.

Field Summary

static COSName	CN_MacRomanEncoding
static COSName	CN_StandardEncoding
static COSName	CN_WinAnsiEncoding
static String	NAME_a
static String	NAME_A
static String	NAME_aacute
static String	NAME_Aacute
static String	NAME_acircumflex
static String	NAME_Acircumflex
static String	NAME_acute
static String	NAME_adieresis
static String	NAME_Adieresis
static String	NAME_ae
static String	NAME_AE
static String	NAME_agrave
static String	NAME_Agrave
static String	NAME_ampersand
static String	NAME_aring
static String	NAME_Aring
static String	NAME_asciicircum
static String	NAME_asciitilde
static String	NAME_asterisk
static String	NAME_at
static String	NAME_atilde
static String	NAME_Atilde
static String	NAME_b
static String	NAME_B
static String	NAME_backslash
static String	NAME_bar
static String	NAME_braceleft
static String	NAME_braceright
static String	NAME_bracketleft
static String	NAME_bracketright
static String	NAME_breve
static String	NAME_brokenbar
static String	NAME_bullet
static String	NAME_c
static String	NAME_C
static String	NAME_caron
static String	NAME_ccedilla
static String	NAME_Ccedilla
static String	NAME_cedilla
static String	NAME_cent
static String	NAME_circumflex
static String	NAME_colon
static String	NAME_comma
static String	NAME_copyright
static String	NAME_currency
static String	NAME_d
static String	NAME_D
static String	NAME_dagger
static String	NAME_daggerdbl
static String	NAME_degree
static String	NAME_dieresis
static String	NAME_divide
static String	NAME_dollar
static String	NAME_dotaccent
static String	NAME_dotlessi
static String	NAME_e
static String	NAME_E
static String	NAME_eacute
static String	NAME_Eacute
static String	NAME_ecircumflex
static String	NAME_Ecircumflex
static String	NAME_edieresis
static String	NAME_Edieresis
static String	NAME_egrave
static String	NAME_Egrave
static String	NAME_eight
static String	NAME_ellipsis
static String	NAME_emdash
static String	NAME_endash
static String	NAME_equal
static String	NAME_eth
static String	NAME_Eth
static String	NAME_Euro
static String	NAME_exclam
static String	NAME_exclamdown
static String	NAME_f
static String	NAME_F
static String	NAME_fi
static String	NAME_five
static String	NAME_fl
static String	NAME_florin
static String	NAME_four
static String	NAME_fraction
static String	NAME_g
static String	NAME_G
static String	NAME_germandbls
static String	NAME_grave
static String	NAME_greater
static String	NAME_guillemotleft
static String	NAME_guillemotright
static String	NAME_guilsinglleft
static String	NAME_guilsinglright
static String	NAME_h
static String	NAME_H
static String	NAME_hungarumlaut
static String	NAME_hyphen
static String	NAME_i
static String	NAME_I
static String	NAME_iacute
static String	NAME_Iacute
static String	NAME_icircumflex
static String	NAME_Icircumflex
static String	NAME_idieresis
static String	NAME_Idieresis
static String	NAME_igrave
static String	NAME_Igrave
static String	NAME_j
static String	NAME_J
static String	NAME_k
static String	NAME_K
static String	NAME_l
static String	NAME_L
static String	NAME_less
static String	NAME_logicalnot
static String	NAME_lslash
static String	NAME_Lslash
static String	NAME_m
static String	NAME_M
static String	NAME_macron
static String	NAME_minus
static String	NAME_mu
static String	NAME_multiply
static String	NAME_n
static String	NAME_N
static String	NAME_nine
static String	NAME_ntilde
static String	NAME_Ntilde
static String	NAME_numbersign
static String	NAME_o
static String	NAME_O
static String	NAME_oacute
static String	NAME_Oacute
static String	NAME_ocircumflex
static String	NAME_Ocircumflex
static String	NAME_odieresis
static String	NAME_Odieresis
static String	NAME_oe
static String	NAME_OE
static String	NAME_ogonek
static String	NAME_ograve
static String	NAME_Ograve
static String	NAME_one
static String	NAME_onehalf
static String	NAME_onequarter
static String	NAME_onesuperior
static String	NAME_ordfeminine
static String	NAME_ordmasculine
static String	NAME_oslash
static String	NAME_Oslash
static String	NAME_otilde
static String	NAME_Otilde
static String	NAME_p
static String	NAME_P
static String	NAME_paragraph
static String	NAME_parenleft
static String	NAME_parenright
static String	NAME_percent
static String	NAME_period
static String	NAME_periodcentered
static String	NAME_perthousand
static String	NAME_plus
static String	NAME_plusminus
static String	NAME_q
static String	NAME_Q
static String	NAME_question
static String	NAME_questiondown
static String	NAME_quotedbl
static String	NAME_quotedblbase
static String	NAME_quotedblleft
static String	NAME_quotedblright
static String	NAME_quoteleft
static String	NAME_quoteright
static String	NAME_quotesinglbase
static String	NAME_quotesingle
static String	NAME_r
static String	NAME_R
static String	NAME_registered
static String	NAME_ring
static String	NAME_s
static String	NAME_S
static String	NAME_scaron
static String	NAME_Scaron
static String	NAME_section
static String	NAME_semicolon
static String	NAME_seven
static String	NAME_six
static String	NAME_slash
static String	NAME_space
static String	NAME_sterling
static String	NAME_t
static String	NAME_T
static String	NAME_thorn
static String	NAME_Thorn
static String	NAME_three
static String	NAME_threequarters
static String	NAME_threesuperior
static String	NAME_tilde
static String	NAME_trademark
static String	NAME_two
static String	NAME_twosuperior
static String	NAME_u
static String	NAME_U
static String	NAME_uacute
static String	NAME_Uacute
static String	NAME_ucircumflex
static String	NAME_Ucircumflex
static String	NAME_udieresis
static String	NAME_Udieresis
static String	NAME_ugrave
static String	NAME_Ugrave
static String	NAME_underscore
static String	NAME_v
static String	NAME_V
static String	NAME_w
static String	NAME_W
static String	NAME_x
static String	NAME_X
static String	NAME_y
static String	NAME_Y
static String	NAME_yacute
static String	NAME_Yacute
static String	NAME_ydieresis
static String	NAME_Ydieresis
static String	NAME_yen
static String	NAME_z
static String	NAME_Z
static String	NAME_zcaron
static String	NAME_Zcaron
static String	NAME_zero

Constructor Summary

Encoding()
Create a new Encoding

Method Summary

static Encoding	create(COSName name) "Create" one of the well known encodings.
Reader	createReader(InputStream is) Create a reader on the InputStream is that uses the encoding defined in the receiver.
Writer	createWriter(OutputStream os) Create a writer on the OutputStream os that uses the encoding defined in the receiver.
String	decode(byte[] bytes)
byte[]	encode(char[] value)
byte[]	encode(String value)
abstract int	getByteCode(int unicode) Get the byte code point where the character referenced by the Unicode code point unicode is mapped in this font encoding or -1 if invalid.
abstract int	getByteCode(String name) Get the code point where the character referenced by the Adobe glyph name name is mapped in this font encoding or -1 if not valid.
abstract COSObject	getCosObject() Get an object that can be used as a representation of the receiver encoding within doc.
String	getDifferenceGlyphName(int codePoint)
int	getDifferenceUnicode(int codePoint)
abstract String	getGlyphName(int codePoint) Get the character name for a given encoded byte code point.
abstract String	getName()
static Encoding	getStandard() Return the standard encoding for the PDF specification.
abstract int	getUnicode(int byteCode) Get the Unicode code point for the encoded code Point byteCode or -1 if not available.
abstract int	getValidByteCode(int unicode) Get the byte code point where the character referenced by the Unicode code point unicode is mapped in this font encoding or a valid replacement code point if invalid.
abstract int	getValidByteCode(String name) Get the code point where the character referenced by the Adobe glyph name name is mapped in this font encoding or a valid replacement.
boolean	isFontSpecificEncoding() Answer true if this encoding is specific to and embedded into the font program itself so that we can not derive any mapping information from here.
String	toString()

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

CN_MacRomanEncoding

public static final COSName CN_MacRomanEncoding

CN_StandardEncoding

public static final COSName CN_StandardEncoding

CN_WinAnsiEncoding

public static final COSName CN_WinAnsiEncoding

NAME_a

public static final String NAME_a

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Constant Field Values

NAME_A

public static final String NAME_A

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Constant Field Values

NAME_aacute

public static final String NAME_aacute

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Constant Field Values

NAME_Aacute

public static final String NAME_Aacute

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NAME_acircumflex

public static final String NAME_acircumflex

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NAME_Acircumflex

public static final String NAME_Acircumflex

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NAME_acute

public static final String NAME_acute

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NAME_adieresis

public static final String NAME_adieresis

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NAME_Adieresis

public static final String NAME_Adieresis

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NAME_ae

public static final String NAME_ae

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NAME_AE

public static final String NAME_AE

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NAME_agrave

public static final String NAME_agrave

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NAME_Agrave

public static final String NAME_Agrave

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NAME_ampersand

public static final String NAME_ampersand

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NAME_aring

public static final String NAME_aring

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NAME_Aring

public static final String NAME_Aring

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NAME_asciicircum

public static final String NAME_asciicircum

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NAME_asciitilde

public static final String NAME_asciitilde

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NAME_asterisk

public static final String NAME_asterisk

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NAME_at

public static final String NAME_at

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NAME_atilde

public static final String NAME_atilde

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NAME_Atilde

public static final String NAME_Atilde

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NAME_b

public static final String NAME_b

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NAME_B

public static final String NAME_B

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NAME_backslash

public static final String NAME_backslash

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NAME_bar

public static final String NAME_bar

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NAME_braceleft

public static final String NAME_braceleft

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NAME_braceright

public static final String NAME_braceright

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NAME_bracketleft

public static final String NAME_bracketleft

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NAME_bracketright

public static final String NAME_bracketright

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NAME_breve

public static final String NAME_breve

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NAME_brokenbar

public static final String NAME_brokenbar

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NAME_bullet

public static final String NAME_bullet

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NAME_c

public static final String NAME_c

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NAME_C

public static final String NAME_C

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NAME_caron

public static final String NAME_caron

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NAME_ccedilla

public static final String NAME_ccedilla

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NAME_Ccedilla

public static final String NAME_Ccedilla

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NAME_cedilla

public static final String NAME_cedilla

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NAME_cent

public static final String NAME_cent

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NAME_circumflex

public static final String NAME_circumflex

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NAME_colon

public static final String NAME_colon

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NAME_comma

public static final String NAME_comma

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NAME_copyright

public static final String NAME_copyright

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NAME_currency

public static final String NAME_currency

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NAME_d

public static final String NAME_d

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NAME_D

public static final String NAME_D

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NAME_dagger

public static final String NAME_dagger

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NAME_daggerdbl

public static final String NAME_daggerdbl

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NAME_degree

public static final String NAME_degree

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NAME_dieresis

public static final String NAME_dieresis

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NAME_divide

public static final String NAME_divide

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NAME_dollar

public static final String NAME_dollar

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NAME_dotaccent

public static final String NAME_dotaccent

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NAME_dotlessi

public static final String NAME_dotlessi

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NAME_e

public static final String NAME_e

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NAME_E

public static final String NAME_E

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NAME_eacute

public static final String NAME_eacute

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NAME_Eacute

public static final String NAME_Eacute

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NAME_ecircumflex

public static final String NAME_ecircumflex

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NAME_Ecircumflex

public static final String NAME_Ecircumflex

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NAME_edieresis

public static final String NAME_edieresis

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NAME_Edieresis

public static final String NAME_Edieresis

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NAME_egrave

public static final String NAME_egrave

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NAME_Egrave

public static final String NAME_Egrave

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NAME_eight

public static final String NAME_eight

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NAME_ellipsis

public static final String NAME_ellipsis

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NAME_emdash

public static final String NAME_emdash

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NAME_endash

public static final String NAME_endash

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NAME_equal

public static final String NAME_equal

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NAME_eth

public static final String NAME_eth

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NAME_Eth

public static final String NAME_Eth

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NAME_Euro

public static final String NAME_Euro

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NAME_exclam

public static final String NAME_exclam

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NAME_exclamdown

public static final String NAME_exclamdown

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NAME_f

public static final String NAME_f

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NAME_F

public static final String NAME_F

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NAME_fi

public static final String NAME_fi

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NAME_five

public static final String NAME_five

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NAME_fl

public static final String NAME_fl

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NAME_florin

public static final String NAME_florin

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NAME_four

public static final String NAME_four

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NAME_fraction

public static final String NAME_fraction

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NAME_g

public static final String NAME_g

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NAME_G

public static final String NAME_G

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NAME_germandbls

public static final String NAME_germandbls

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NAME_grave

public static final String NAME_grave

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NAME_greater

public static final String NAME_greater

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NAME_guillemotleft

public static final String NAME_guillemotleft

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NAME_guillemotright

public static final String NAME_guillemotright

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NAME_guilsinglleft

public static final String NAME_guilsinglleft

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NAME_guilsinglright

public static final String NAME_guilsinglright

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NAME_h

public static final String NAME_h

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NAME_H

public static final String NAME_H

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NAME_hungarumlaut

public static final String NAME_hungarumlaut

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NAME_hyphen

public static final String NAME_hyphen

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NAME_i

public static final String NAME_i

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NAME_I

public static final String NAME_I

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NAME_iacute

public static final String NAME_iacute

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NAME_Iacute

public static final String NAME_Iacute

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NAME_icircumflex

public static final String NAME_icircumflex

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NAME_Icircumflex

public static final String NAME_Icircumflex

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NAME_idieresis

public static final String NAME_idieresis

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NAME_Idieresis

public static final String NAME_Idieresis

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NAME_igrave

public static final String NAME_igrave

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NAME_Igrave

public static final String NAME_Igrave

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NAME_j

public static final String NAME_j

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NAME_J

public static final String NAME_J

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NAME_k

public static final String NAME_k

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NAME_K

public static final String NAME_K

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NAME_l

public static final String NAME_l

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NAME_L

public static final String NAME_L

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NAME_less

public static final String NAME_less

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NAME_logicalnot

public static final String NAME_logicalnot

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NAME_lslash

public static final String NAME_lslash

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NAME_Lslash

public static final String NAME_Lslash

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NAME_m

public static final String NAME_m

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NAME_M

public static final String NAME_M

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NAME_macron

public static final String NAME_macron

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NAME_minus

public static final String NAME_minus

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NAME_mu

public static final String NAME_mu

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NAME_multiply

public static final String NAME_multiply

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NAME_n

public static final String NAME_n

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NAME_N

public static final String NAME_N

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NAME_nine

public static final String NAME_nine

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NAME_ntilde

public static final String NAME_ntilde

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NAME_Ntilde

public static final String NAME_Ntilde

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NAME_numbersign

public static final String NAME_numbersign

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NAME_o

public static final String NAME_o

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NAME_O

public static final String NAME_O

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NAME_oacute

public static final String NAME_oacute

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NAME_Oacute

public static final String NAME_Oacute

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NAME_ocircumflex

public static final String NAME_ocircumflex

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NAME_Ocircumflex

public static final String NAME_Ocircumflex

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NAME_odieresis

public static final String NAME_odieresis

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NAME_Odieresis

public static final String NAME_Odieresis

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NAME_oe

public static final String NAME_oe

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NAME_OE

public static final String NAME_OE

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NAME_ogonek

public static final String NAME_ogonek

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NAME_ograve

public static final String NAME_ograve

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NAME_Ograve

public static final String NAME_Ograve

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NAME_one

public static final String NAME_one

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NAME_onehalf

public static final String NAME_onehalf

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NAME_onequarter

public static final String NAME_onequarter

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NAME_onesuperior

public static final String NAME_onesuperior

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NAME_ordfeminine

public static final String NAME_ordfeminine

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NAME_ordmasculine

public static final String NAME_ordmasculine

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NAME_oslash

public static final String NAME_oslash

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NAME_Oslash

public static final String NAME_Oslash

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NAME_otilde

public static final String NAME_otilde

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NAME_Otilde

public static final String NAME_Otilde

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NAME_p

public static final String NAME_p

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NAME_P

public static final String NAME_P

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NAME_paragraph

public static final String NAME_paragraph

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NAME_parenleft

public static final String NAME_parenleft

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NAME_parenright

public static final String NAME_parenright

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NAME_percent

public static final String NAME_percent

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NAME_period

public static final String NAME_period

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NAME_periodcentered

public static final String NAME_periodcentered

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NAME_perthousand

public static final String NAME_perthousand

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NAME_plus

public static final String NAME_plus

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NAME_plusminus

public static final String NAME_plusminus

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NAME_q

public static final String NAME_q

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NAME_Q

public static final String NAME_Q

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NAME_question

public static final String NAME_question

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NAME_questiondown

public static final String NAME_questiondown

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NAME_quotedbl

public static final String NAME_quotedbl

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NAME_quotedblbase

public static final String NAME_quotedblbase

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NAME_quotedblleft

public static final String NAME_quotedblleft

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NAME_quotedblright

public static final String NAME_quotedblright

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NAME_quoteleft

public static final String NAME_quoteleft

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NAME_quoteright

public static final String NAME_quoteright

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NAME_quotesinglbase

public static final String NAME_quotesinglbase

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NAME_quotesingle

public static final String NAME_quotesingle

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NAME_r

public static final String NAME_r

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NAME_R

public static final String NAME_R

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NAME_registered

public static final String NAME_registered

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NAME_ring

public static final String NAME_ring

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NAME_s

public static final String NAME_s

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NAME_S

public static final String NAME_S

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NAME_scaron

public static final String NAME_scaron

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NAME_Scaron

public static final String NAME_Scaron

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NAME_section

public static final String NAME_section

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NAME_semicolon

public static final String NAME_semicolon

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NAME_seven

public static final String NAME_seven

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NAME_six

public static final String NAME_six

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NAME_slash

public static final String NAME_slash

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NAME_space

public static final String NAME_space

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NAME_sterling

public static final String NAME_sterling

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NAME_t

public static final String NAME_t

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NAME_T

public static final String NAME_T

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NAME_thorn

public static final String NAME_thorn

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NAME_Thorn

public static final String NAME_Thorn

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NAME_three

public static final String NAME_three

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NAME_threequarters

public static final String NAME_threequarters

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NAME_threesuperior

public static final String NAME_threesuperior

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NAME_tilde

public static final String NAME_tilde

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NAME_trademark

public static final String NAME_trademark

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NAME_two

public static final String NAME_two

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NAME_twosuperior

public static final String NAME_twosuperior

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NAME_u

public static final String NAME_u

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NAME_U

public static final String NAME_U

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NAME_uacute

public static final String NAME_uacute

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NAME_Uacute

public static final String NAME_Uacute

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NAME_ucircumflex

public static final String NAME_ucircumflex

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NAME_Ucircumflex

public static final String NAME_Ucircumflex

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NAME_udieresis

public static final String NAME_udieresis

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NAME_Udieresis

public static final String NAME_Udieresis

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NAME_ugrave

public static final String NAME_ugrave

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NAME_Ugrave

public static final String NAME_Ugrave

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NAME_underscore

public static final String NAME_underscore

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NAME_v

public static final String NAME_v

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NAME_V

public static final String NAME_V

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NAME_w

public static final String NAME_w

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NAME_W

public static final String NAME_W

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NAME_x

public static final String NAME_x

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NAME_X

public static final String NAME_X

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NAME_y

public static final String NAME_y

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NAME_Y

public static final String NAME_Y

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NAME_yacute

public static final String NAME_yacute

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NAME_Yacute

public static final String NAME_Yacute

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NAME_ydieresis

public static final String NAME_ydieresis

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NAME_Ydieresis

public static final String NAME_Ydieresis

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NAME_yen

public static final String NAME_yen

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NAME_z

public static final String NAME_z

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NAME_Z

public static final String NAME_Z

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NAME_zcaron

public static final String NAME_zcaron

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NAME_Zcaron

public static final String NAME_Zcaron

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NAME_zero

public static final String NAME_zero

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Constructor Detail

Encoding

public Encoding()

Create a new Encoding

Method Detail

create

public static Encoding create(COSName name)

"Create" one of the well known encodings.

Parameters:

name - The name of the encoding to create.

Returns:

The encoding implementation.

Throws:

IllegalArgumentException - When the encoding is not supported.

getStandard

public static Encoding getStandard()

Return the standard encoding for the PDF specification.

Returns:

Return the standard encoding for the PDF specification.

createReader

public Reader createReader(InputStream is)

Create a reader on the InputStream is that uses the encoding defined in the receiver.

Parameters:

is - The input stream to read.

Returns:

Create a reader on the InputStream is that uses the encoding defined in the receiver.

createWriter

public Writer createWriter(OutputStream os)

Create a writer on the OutputStream os that uses the encoding defined in the receiver.

Parameters:

os - The output stream to be written.

Returns:

Create a writer on the OutputStream os that uses the encoding defined in the receiver.

decode

public String decode(byte[] bytes)

encode

public byte[] encode(char[] value)

encode

public byte[] encode(String value)

getByteCode

public abstract int getByteCode(int unicode)

Get the byte code point where the character referenced by the Unicode code point unicode is mapped in this font encoding or -1 if invalid.

unicode must be a valid Unicode code point. The returned code point is a value from 0...255. If the Unicode code point is not valid or not mapped, -1 is returned.

Parameters:

unicode - The Unicode code point to look up.

Returns:

The index from 0..255 where this character is mapped or -1.

getByteCode

public abstract int getByteCode(String name)

Get the code point where the character referenced by the Adobe glyph name name is mapped in this font encoding or -1 if not valid.

name must be a valid Adobe glyph name. The code point is a value from 0...255. If the glyph is not found, -1 is returned.

Parameters:

name - The glyph name.

Returns:

The index from 0..255 where this character is mapped or -1.

getCosObject

public abstract COSObject getCosObject()

Get an object that can be used as a representation of the receiver encoding within doc.

Returns:

Get an object that can be used as a representation of the receiver encoding within doc.

getGlyphName

public abstract String getGlyphName(int codePoint)

Get the character name for a given encoded byte code point. If no mapping is defined, return ".notdef".

Parameters:

codePoint - The encoded byte code point.

Returns:

The glyph name of the character referenced by codePoint or ".notdef".

getName

public abstract String getName()

getUnicode

public abstract int getUnicode(int byteCode)

Get the Unicode code point for the encoded code Point byteCode or -1 if not available.

Parameters:

byteCode - The encoded code point

Returns:

The Unicode code point for the encoded code Point byteCode or -1.

getValidByteCode

public abstract int getValidByteCode(int unicode)

Get the byte code point where the character referenced by the Unicode code point unicode is mapped in this font encoding or a valid replacement code point if invalid.

unicode must be a valid Unicode code point. The returned code point is a value from 0...255. If the Unicode code point is not valid or not mapped, a valid code point is returned is returned (for example the space character).

Parameters:

unicode - The Unicode code point to look up.

Returns:

The index from 0..255 where this character is mapped or valid replacement.

getValidByteCode

public abstract int getValidByteCode(String name)

Get the code point where the character referenced by the Adobe glyph name name is mapped in this font encoding or a valid replacement.

name must be a valid Adobe glyph name. The code point is a value from 0...255. If the glyph is not found, a valif replacement code point is returned instead (for example the space character).

Parameters:

name - The glyph name.

Returns:

The index from 0..255 where this character is mapped or a valid replacement.

isFontSpecificEncoding

public boolean isFontSpecificEncoding()

Answer true if this encoding is specific to and embedded into the font program itself so that we can not derive any mapping information from here.

Returns:

Answer true if this encoding is specific to and embedded into the font program itself

toString

public String toString()

Overrides:

toString in class Object

getDifferenceUnicode

public int getDifferenceUnicode(int codePoint)

getDifferenceGlyphName

public String getDifferenceGlyphName(int codePoint)