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java.lang.Objectcom.ibm.bidiTools.bdlayout.ArabicOption
public class ArabicOption
This class represents ArabicOption objects and provides initial values for each shaping option.
Arabic text has some special characters that can be converted to different formats, which are characterized by four Arabic options, these options are stored in four Arabic objects. These four options constitute an ArabicOptionSet.
An ArabicOptionSet object contains a value for each of the four Arabic objects which represent the Arabic options. The four options are:
For more information on Arabic Shaping options, see: Bidirectional support in IBM SDK: A user guide
Multi-threading considerations: There are no multi-threading concerns for this class because it only defines static final instances.
Field Summary | |
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static ArabicOption |
LAMALEF_ATBEGIN
Value identifying At Begin. |
static ArabicOption |
LAMALEF_ATEND
Value identifying At End. |
static ArabicOption |
LAMALEF_AUTO
Value identifying Auto. |
static ArabicOption |
LAMALEF_NEAR
Value identifying Near. |
static ArabicOption |
LAMALEF_RESIZE_BUFFER
Value identifying Resize buffer. |
static ArabicOption |
SEEN_ATBEGIN
Deprecated. this option is deprecated use SEEN_NEAR option |
static ArabicOption |
SEEN_AUTO
Deprecated. this option is deprecated use SEEN_NEAR option |
static ArabicOption |
SEEN_NEAR
Value identifying Near. |
static ArabicOption |
TASHKEEL_AUTO
Value identifying Auto. |
static ArabicOption |
TASHKEEL_CUSTOMIZED_ATBEGIN
Value identifying Customized At Begin. |
static ArabicOption |
TASHKEEL_CUSTOMIZED_ATEND
Value identifying Customized At End. |
static ArabicOption |
TASHKEEL_CUSTOMIZED_Near
Value identifying Customized Near. |
static ArabicOption |
TASHKEEL_CUSTOMIZED_RESIZE_BUFFER
Value identifying Customized Resize_Buffer. |
static ArabicOption |
TASHKEEL_CUSTOMIZED_WITHWIDTH
Value identifying Customized With Width. |
static ArabicOption |
TASHKEEL_CUSTOMIZED_WITHZEROWIDTH
Value identifying Customized With Zero Width. |
static ArabicOption |
TASHKEEL_KEEP
Value identifying Keep Tashkeel. |
static ArabicOption |
YEHHAMZA_AUTO
Deprecated. this option is deprecated use YEHHAMZA_TWO_CELL_NEAR |
static ArabicOption |
YEHHAMZA_TWO_CELL_ATEND
Deprecated. this option is deprecated use YEHHAMZA_TWO_CELL_NEAR |
static ArabicOption |
YEHHAMZA_TWO_CELL_NEAR
Value identifying Near. |
Method Summary |
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Methods inherited from class java.lang.Object |
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equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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public static final ArabicOption LAMALEF_RESIZE_BUFFER
When converting from visual to implicit code pages, Lam-Alef characters are expanded to Lam plus Alef, while when converting from implicit to visual code pages, every sequence of Lam followed by Alef is contracted to a Lam-ALef character. The buffer is enlarged or reduced as appropriate.
public static final ArabicOption LAMALEF_NEAR
When converting from visual to implicit code pages, Lam-Alef characters are expanded to Lam plus Alef consuming the blank space next to it. If no blank space is available, the Lam-Alef character remains as is in the Unicode uFExx range.
When converting from implicit to visual code pages, Lam plus Alef sequences are compressed to a unique Lam-Alef character; the space resulting from Lam-Alef compression is positioned next to each generated Lam-Alef character.
public static final ArabicOption LAMALEF_ATBEGIN
When converting from visual to implicit code pages, Lam-Alef characters are expanded to Lam plus Alef consuming a blank space at the beginning of the buffer. If no blank space is available, the Lam-Alef character remains as is in the Unicode uFExx range.
When converting from implicit to visual code pages, Lam plus Alef sequences are compressed to a unique Lam-Alef character; the space resulting from Lam-Alef compression is positioned at the beginning of the buffer.
public static final ArabicOption LAMALEF_ATEND
When converting from visual to implicit code pages, Lam-Alef characters are expanded to Lam plus Alef consuming a blank space at the end of the buffer. If no blank space is available, the Lam-Alef character remains as is in the Unicode uFExx range.
When converting from implicit to visual code pages, Lam plus Alef sequences are compressed to a unique Lam-Alef character; the space resulting from Lam-Alef compression is positioned at the end of the buffer.
public static final ArabicOption LAMALEF_AUTO
When converting from visual to implicit code pages, Lam-Alef characters are expanded to Lam plus Alef consuming a blank space at the beginning of the buffer with respect to the orientation, i.e. buffer[0] in case of left-to-right and buffer[length - 1] in case of right-to-left. If no blank space is available, the Lam-Alef character remains as is in the Unicode uFExx range.
When converting from implicit to visual code pages, Lam plus Alef sequences are compressed to a unique Lam-Alef character; the space resulting from Lam-Alef compression is positioned at the beginning of the buffer with respect to the orientation.
public static final ArabicOption SEEN_NEAR
Conversion from visual to implicit converts final forms of the Seen family represented by two characters (the three quarters shape and the Tail character) to corresponding final forms represented by one character and a space replacing the Tail. This space is positioned next to the Seen final form.
In conversion from implicit to visual, each final form of characters in the Seen family (represented by one character) is converted to the the corresponding final form of the Seen family that is represented by two characters, consuming the space next to the Seen character. If there is no space available, it will be converted to one character only which is the three quarters shape Seen.
@Deprecated public static final ArabicOption SEEN_ATBEGIN
Conversion from visual to implicit converts final forms of the Seen family represented by two characters (the three quarters shape and the Tail character) to corresponding final forms represented by one character and a space replacing the Tail. The resulting space is moved to the beginning of the buffer.
In conversion from implicit to visual, each final form of characters in the Seen family (represented by one character) is converted to the the corresponding final form of the Seen family that is represented by two characters, consuming a space at the beginning of the buffer.
@Deprecated public static final ArabicOption SEEN_AUTO
Same behavior as NEAR for this release
public static final ArabicOption YEHHAMZA_TWO_CELL_NEAR
Conversion from visual to implicit converts each Yeh character followed by a Hamza character to a Yeh-Hamza character; the space resulting from the contraction is positioned next to the Yeh-Hamza character.
In conversion from implicit to visual, each Yeh-Hamza character is expanded to two characters (Yeh and Hamza), consuming the space located next to the original Yeh-Hamza character. If there is no space available, it will be converted to one character which is Yeh.
@Deprecated public static final ArabicOption YEHHAMZA_TWO_CELL_ATEND
In conversion from visual to implicit, each Yeh character followed by a Hamza character is contracted to a Yeh-Hamza character (one character); the resulting space is positioned at the end of the buffer.
In conversion from implicit to visual, each Yeh-Hamza character is expanded to two characters (Yeh and Hamza), consuming the space located at the end of the buffer.
@Deprecated public static final ArabicOption YEHHAMZA_AUTO
Same behavior as NEAR for this release
public static final ArabicOption TASHKEEL_KEEP
No special processing is done
public static final ArabicOption TASHKEEL_CUSTOMIZED_WITHZEROWIDTH
All Tashkeel characters are converted to the corresponding non-spacing (zero-width) characters.
public static final ArabicOption TASHKEEL_CUSTOMIZED_WITHWIDTH
All Tashkeel characters are converted to the corresponding spacing characters. This option is not available in case of visual to implicit conversion because Tashkeel characters in the Arabic u06xx range all represent non-spacing (zero-width) characters.
public static final ArabicOption TASHKEEL_CUSTOMIZED_ATBEGIN
All Tashkeel characters except for Shadda are replaced by spaces. The resulting spaces are moved to the beginning of the buffer.
public static final ArabicOption TASHKEEL_CUSTOMIZED_Near
All Tashkeel characters except for Shadda are replaced by spaces. The resulting spaces are moved to the same position of the tashkeel character.
public static final ArabicOption TASHKEEL_CUSTOMIZED_ATEND
All Tashkeel characters except for Shadda are replaced by spaces. The resulting spaces are moved to the end of the buffer.
public static final ArabicOption TASHKEEL_CUSTOMIZED_RESIZE_BUFFER
All Tashkeel characters except for Shadda are ignored and reseize the data buffer. This done only when the output codepage is 420 or 864.
public static final ArabicOption TASHKEEL_AUTO
Same behavior as KEEP for this release
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