net.sf.saxon.regex

Class BMPString

java.lang.Object

net.sf.saxon.regex.UnicodeString

net.sf.saxon.regex.BMPString

public final class BMPString
extends UnicodeString

An implementation of UnicodeString optimized for strings that contain no characters outside the BMP (i.e. no characters whose codepoints exceed 65535)

Field Summary

Fields inherited from class net.sf.saxon.regex.UnicodeString

EMPTY_STRING

Constructor Summary

Constructors

Constructor and Description
BMPString(CharSequence src)

Method Summary

Methods

Modifier and Type	Method and Description
int	charAt(int pos) Get the character at a specified position
CharSequence	getCharSequence() Get the value of this UnicodeString as a CharSequence
int	indexOf(int search, int pos) Get the first match for a given character
boolean	isEnd(int pos) Ask whether a given position is at (or beyond) the end of the string
int	length() Get the length of the string, in Unicode codepoints
UnicodeString	substring(int beginIndex, int endIndex) Get a substring of this string
String	toString()

Methods inherited from class net.sf.saxon.regex.UnicodeString

containsSurrogatePairs, makeUnicodeString, makeUnicodeString

Methods inherited from class java.lang.Object

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

Constructor Detail

BMPString

public BMPString(CharSequence src)

Parameters:

src - - encapsulated CharSequence. The client must ensure that this contains no surrogate pairs

Method Detail

substring

public UnicodeString substring(int beginIndex,
                      int endIndex)

Description copied from class: UnicodeString

Get a substring of this string

Specified by:

substring in class UnicodeString

Parameters:

beginIndex - the index of the first character to be included (counting codepoints, not 16-bit characters)

endIndex - the index of the first character to be NOT included (counting codepoints, not 16-bit characters)

Returns:

a substring

charAt

public int charAt(int pos)

Description copied from class: UnicodeString

Get the character at a specified position

Specified by:

charAt in class UnicodeString

Parameters:

pos - the index of the required character (counting codepoints, not 16-bit characters)

Returns:

a character (Unicode codepoint) at the specified position.

indexOf

public int indexOf(int search,
          int pos)

Description copied from class: UnicodeString

Get the first match for a given character

Specified by:

indexOf in class UnicodeString

Parameters:

search - the character to look for

pos - the first position to look

Returns:

the position of the first occurrence of the sought character, or -1 if not found

length

public int length()

Description copied from class: UnicodeString

Get the length of the string, in Unicode codepoints

Specified by:

length in class UnicodeString

Returns:

the number of codepoints in the string

isEnd

public boolean isEnd(int pos)

Description copied from class: UnicodeString

Ask whether a given position is at (or beyond) the end of the string

Specified by:

isEnd in class UnicodeString

Parameters:

pos - the index of the required character (counting codepoints, not 16-bit characters)

Returns:

true iff if the specified index is after the end of the character stream

toString

public String toString()

Overrides:

toString in class Object

getCharSequence

public CharSequence getCharSequence()

Description copied from class: UnicodeString

Get the value of this UnicodeString as a CharSequence

Specified by:

getCharSequence in class UnicodeString

Returns:

a CharSequence representing the same characters as this UnicodeString