org.crosswire.common.util
Class Language.CanonicalUtils

java.lang.Object
  org.crosswire.common.util.Language.CanonicalUtils

Enclosing class:

Language

private static final class Language.CanonicalUtils
extends Object

Converts substrings to the canonical representation for language code, script and country.

Constructor Summary

private

Language.CanonicalUtils() Utility class.

Method Summary

static String	getCountry(String specification, int start, int end) The iso3166 country code's canonical form is upper case.
static String	getLanguage(String specification, int start, int end) The iso639 language code's canonical form is lower case.
static String	getScript(String specification, int start, int end) The iso15924 script code's canonical form is title case.
private static boolean	isLowerASCII(char c) Determine whether the character is one of a-z.
private static boolean	isUpperASCII(char c) Determine whether the character is one of A-Z.
private static char	toLowerASCII(char c) Convert a character, in in A-Z to its lower case value, otherwise leave it alone.
private static char	toUpperASCII(char c) Convert a character, in in a-z to its upper case value, otherwise leave it alone.

Methods inherited from class java.lang.Object

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

Constructor Detail

Language.CanonicalUtils

private Language.CanonicalUtils()

Utility class. Private constructor.

Method Detail

getLanguage

public static String getLanguage(String specification,
                                 int start,
                                 int end)

The iso639 language code's canonical form is lower case.

Parameters:

specification - the bcp47 specification of the language

start - the start of the code

end - the position of the character following the code

Returns:

the canonical representation for the code

getCountry

public static String getCountry(String specification,
                                int start,
                                int end)

The iso3166 country code's canonical form is upper case.

Parameters:

specification - the bcp47 specification of the language

start - the start of the code

end - the position of the character following the code

Returns:

the canonical representation for the code

getScript

public static String getScript(String specification,
                               int start,
                               int end)

The iso15924 script code's canonical form is title case.

Parameters:

specification - the bcp47 specification of the language

start - the start of the code

end - the position of the character following the code

Returns:

the canonical representation for the code

isUpperASCII

private static boolean isUpperASCII(char c)

Determine whether the character is one of A-Z.

Parameters:

c - the character to examine

Returns:

true if it is in A-Z

isLowerASCII

private static boolean isLowerASCII(char c)

Determine whether the character is one of a-z.

Parameters:

c - the character to examine

Returns:

true if it is in a-z

toUpperASCII

private static char toUpperASCII(char c)

Convert a character, in in a-z to its upper case value, otherwise leave it alone.

Parameters:

c - the character to convert, if in a-z

Returns:

the upper case ASCII representation of the character or the character itself.

toLowerASCII

private static char toLowerASCII(char c)

Convert a character, in in A-Z to its lower case value, otherwise leave it alone.

Parameters:

c - the character to convert, if in A-Z

Returns:

the lower case ASCII representation of the character or the character itself.