UnicodeFilter
public
abstract
class
UnicodeFilter
extends Object
implements
UnicodeMatcher
 Known Direct Subclasses
| UnicodeSet |
A mutable set of Unicode characters and multicharacter strings.
|
|
UnicodeFilter defines a protocol for selecting a
subset of the full range (U+0000 to U+FFFF) of Unicode characters.
Summary
Inherited constants |
|---|
From
interface
android.icu.text.UnicodeMatcher
char |
ETHER
The character at index i, where i < contextStart || i >= contextLimit,
is ETHER.
|
int |
U_MATCH
Constant returned by matches() indicating a
complete match between the text and this matcher.
|
int |
U_MISMATCH
Constant returned by matches() indicating a
mismatch between the text and this matcher.
|
int |
U_PARTIAL_MATCH
Constant returned by matches() indicating a
partial match between the text and this matcher.
|
|
Public methods |
|---|
abstract
boolean
|
contains(int c)
Returns true for characters that are in the selected
subset.
|
int
|
matches(Replaceable text, int[] offset, int limit, boolean incremental)
Default implementation of UnicodeMatcher::matches() for Unicode
filters.
|
Inherited methods |
|---|
From
class
java.lang.Object
Object
|
clone()
Creates and returns a copy of this object.
|
boolean
|
equals(Object obj)
Indicates whether some other object is "equal to" this one.
|
void
|
finalize()
Called by the garbage collector on an object when garbage collection
determines that there are no more references to the object.
|
final
Class<?>
|
getClass()
Returns the runtime class of this Object.
|
int
|
hashCode()
Returns a hash code value for the object.
|
final
void
|
notify()
Wakes up a single thread that is waiting on this object's
monitor.
|
final
void
|
notifyAll()
Wakes up all threads that are waiting on this object's monitor.
|
String
|
toString()
Returns a string representation of the object.
|
final
void
|
wait(long millis, int nanos)
Causes the current thread to wait until another thread invokes the
notify() method or the
notifyAll() method for this object, or
some other thread interrupts the current thread, or a certain
amount of real time has elapsed.
|
final
void
|
wait(long millis)
Causes the current thread to wait until either another thread invokes the
notify() method or the
notifyAll() method for this object, or a
specified amount of time has elapsed.
|
final
void
|
wait()
Causes the current thread to wait until another thread invokes the
notify() method or the
notifyAll() method for this object.
|
|
From
interface
android.icu.text.UnicodeMatcher
abstract
void
|
addMatchSetTo(UnicodeSet toUnionTo)
Union the set of all characters that may be matched by this object
into the given set.
|
abstract
int
|
matches(Replaceable text, int[] offset, int limit, boolean incremental)
Return a UMatchDegree value indicating the degree of match for
the given text at the given offset.
|
abstract
boolean
|
matchesIndexValue(int v)
Returns TRUE if this matcher will match a character c, where c
& 0xFF == v, at offset, in the forward direction (with limit >
offset).
|
abstract
String
|
toPattern(boolean escapeUnprintable)
Returns a string representation of this matcher.
|
|
Public methods
contains
boolean contains (int c)
Returns true for characters that are in the selected
subset. In other words, if a character is to be
filtered, then contains() returns
false.
matches
int matches (Replaceable text,
int[] offset,
int limit,
boolean incremental)
Default implementation of UnicodeMatcher::matches() for Unicode
filters. Matches a single 16-bit code unit at offset.
| Parameters |
|---|
text |
Replaceable:
the text to be matched |
offset |
int:
on input, the index into text at which to begin
matching. On output, the limit of the matched text. The
number of matched characters is the output value of offset
minus the input value. Offset should always point to the
HIGH SURROGATE (leading code unit) of a pair of surrogates,
both on entry and upon return. |
limit |
int:
the limit index of text to be matched. Greater
than offset for a forward direction match, less than offset for
a backward direction match. The last character to be
considered for matching will be text.charAt(limit-1) in the
forward direction or text.charAt(limit+1) in the backward
direction. |
incremental |
boolean:
if TRUE, then assume further characters may
be inserted at limit and check for partial matching. Otherwise
assume the text as given is complete. |
| Returns |
|---|
int |
a match degree value indicating a full match, a partial
match, or a mismatch. If incremental is FALSE then
U_PARTIAL_MATCH should never be returned.
|
Developers