nu.validator.checker

Class AttributeUtil

java.lang.Object

nu.validator.checker.AttributeUtil

public final class AttributeUtil
extends java.lang.Object

Static utilities for working with (X)HTML5 attribute values.

Version:

$Id$

Author:

hsivonen

Method Summary

Modifier and Type	Method and Description
static boolean	lowerCaseLiteralEqualsIgnoreAsciiCaseString(java.lang.String lowerCaseLiteral, java.lang.String string) Checks if string matches lowerCaseLiteral when ASCII-lowercased.
static int	parseInteger(java.lang.String attrVal) Returns the integer represented by attrVal or Integer.MIN_VALUE on error.
static int	parseNonNegativeInteger(java.lang.String attrVal) Returns the non-negative integer represented by attrVal or -1 on error.
static int	parsePositiveInteger(java.lang.String attrVal) Returns the positive integer represented by attrVal or -1 on error.
static java.lang.String[]	split(java.lang.String value) Splits the argument on white space.

Methods inherited from class java.lang.Object

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

Method Detail

parseInteger

public static int parseInteger(java.lang.String attrVal)

Returns the integer represented by attrVal or Integer.MIN_VALUE on error.

Parameters:

attrVal - a string representing an integer attribute value (can be null)

Returns:

the integer represented by attrVal or Integer.MIN_VALUE on error

parseNonNegativeInteger

public static int parseNonNegativeInteger(java.lang.String attrVal)

Returns the non-negative integer represented by attrVal or -1 on error.

Parameters:

attrVal - a string representing a non-negative integer attribute value (can be null)

Returns:

the integer represented by attrVal or -1 on error

parsePositiveInteger

public static int parsePositiveInteger(java.lang.String attrVal)

Returns the positive integer represented by attrVal or -1 on error.

Parameters:

attrVal - a string representing a positive integer attribute value (can be null)

Returns:

the integer represented by attrVal or -1 on error

split

public static java.lang.String[] split(java.lang.String value)

Splits the argument on white space.

Parameters:

value - the attribute value

Returns:

a string array with zero or more strings none of which is the empty string and none of which contains white space characters.

lowerCaseLiteralEqualsIgnoreAsciiCaseString

public static boolean lowerCaseLiteralEqualsIgnoreAsciiCaseString(java.lang.String lowerCaseLiteral,
                                                                  java.lang.String string)

Checks if string matches lowerCaseLiteral when ASCII-lowercased.

Parameters:

lowerCaseLiteral - a lower-case literal

string - potentially mixed-case string or null

Returns:

true if string matches lowerCaseLiteral when ASCII-lowercased