Top Description Fields Constructors Methods
org.apache.tomcat.util.buf

public final Class Ascii

extends Object
Class Inheritance
This class implements some basic ASCII character handling functions.
Authors
[email protected], James Todd [[email protected]]

Field Summary

Modifier and TypeField and Description
private static final boolean[]
isDigit

private static final long
OVERFLOW_LIMIT

private static final byte[]
toLower

Constructor Summary

AccessConstructor and Description
public
Ascii()

Method Summary

Modifier and TypeMethod and Description
private static boolean

Returns:

true if the specified ASCII character is a digit.
isDigit(int
The char
c)

public static long

Returns:

the long value
parseLong(byte[]
the bytes to parse
b, int
the start offset of the bytes
off, int
the length of the bytes
len)

Parses an unsigned long from the specified subarray of bytes.

public static int

Returns:

the lower case equivalent char
toLower(int
The char
c)

Returns the lower case equivalent of the specified ASCII character.

Inherited from java.lang.Object:
cloneequalsfinalizegetClasshashCodenotifynotifyAlltoStringwaitwaitwait

Field Detail

isDigitback to summary
private static final boolean[] isDigit
OVERFLOW_LIMITback to summary
private static final long OVERFLOW_LIMIT
toLowerback to summary
private static final byte[] toLower

Constructor Detail

Asciiback to summary
public Ascii()

Method Detail

isDigitback to summary
private static boolean isDigit(int c)
Parameters
c:int

The char

Returns:boolean

true if the specified ASCII character is a digit.

parseLongback to summary
public static long parseLong(byte[] b, int off, int len) throws NumberFormatException

Parses an unsigned long from the specified subarray of bytes.

Parameters
b:byte[]

the bytes to parse

off:int

the start offset of the bytes

len:int

the length of the bytes

Returns:long

the long value

Exceptions
NumberFormatException:
if the long format was invalid
toLowerback to summary
public static int toLower(int c)

Returns the lower case equivalent of the specified ASCII character.

Parameters
c:int

The char

Returns:int

the lower case equivalent char