com.oracle.truffle.regex.tregex.string

Class Encodings.Encoding.UTF8

java.lang.Object

com.oracle.truffle.regex.tregex.string.Encodings.Encoding

com.oracle.truffle.regex.tregex.string.Encodings.Encoding.UTF8

Enclosing class:

Encodings.Encoding

public static final class Encodings.Encoding.UTF8
extends Encodings.Encoding

Nested Class Summary

Nested classes/interfaces inherited from class com.oracle.truffle.regex.tregex.string.Encodings.Encoding

Encodings.Encoding.Ascii, Encodings.Encoding.Latin1, Encodings.Encoding.UTF16, Encodings.Encoding.UTF16Raw, Encodings.Encoding.UTF32, Encodings.Encoding.UTF8

Constructor Summary

Constructors

Constructor and Description
UTF8()

Method Summary

Modifier and Type	Method and Description
void	createMatcher(SequentialMatchers.Builder matchersBuilder, int i, CodePointSet cps, CompilationBuffer compilationBuffer)
StringBufferUTF8	createStringBuffer(int capacity)
int	getEncodedSize(int codepoint)
CodePointSet	getFullSet()
int	getMaxValue()
String	getName()
int	getNumberOfCodeRanges()
com.oracle.truffle.api.strings.TruffleString.Encoding	getTStringEncoding()
boolean	isFixedCodePointWidth(CodePointSet set) Returns true iff the given code point set may not match a variable amount of bytes in an UTF-8 encoded string, i.e.
boolean	isUnicode()
SequentialMatchers	toMatchers(SequentialMatchers.Builder matchersBuilder)

Methods inherited from class com.oracle.truffle.regex.tregex.string.Encodings.Encoding

createMatchersBuilder, getMinValue, getStride

Methods inherited from class java.lang.Object

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

Constructor Detail

UTF8

public UTF8()

Method Detail

getName

public String getName()

Specified by:

getName in class Encodings.Encoding

getTStringEncoding

public com.oracle.truffle.api.strings.TruffleString.Encoding getTStringEncoding()

Specified by:

getTStringEncoding in class Encodings.Encoding

getMaxValue

public int getMaxValue()

Specified by:

getMaxValue in class Encodings.Encoding

getFullSet

public CodePointSet getFullSet()

Specified by:

getFullSet in class Encodings.Encoding

getEncodedSize

public int getEncodedSize(int codepoint)

Specified by:

getEncodedSize in class Encodings.Encoding

isFixedCodePointWidth

public boolean isFixedCodePointWidth(CodePointSet set)

Returns true iff the given code point set may not match a variable amount of bytes in an UTF-8 encoded string, i.e. the set is bounded by exactly one of the following ranges:

 [0x0     - 0x7f    ] (one byte)
 [0x80    - 0x7ff   ] (two bytes)
 [0x800   - 0xffff  ] (three bytes)
 [0x10000 - 0x10ffff] (four bytes)
 

Specified by:

isFixedCodePointWidth in class Encodings.Encoding

isUnicode

public boolean isUnicode()

Specified by:

isUnicode in class Encodings.Encoding

createStringBuffer

public StringBufferUTF8 createStringBuffer(int capacity)

Specified by:

createStringBuffer in class Encodings.Encoding

getNumberOfCodeRanges

public int getNumberOfCodeRanges()

Specified by:

getNumberOfCodeRanges in class Encodings.Encoding

createMatcher

public void createMatcher(SequentialMatchers.Builder matchersBuilder,
                          int i,
                          CodePointSet cps,
                          CompilationBuffer compilationBuffer)

Specified by:

createMatcher in class Encodings.Encoding

toMatchers

public SequentialMatchers toMatchers(SequentialMatchers.Builder matchersBuilder)

Specified by:

toMatchers in class Encodings.Encoding