net.fortuna.ical4j.util

Class Strings

java.lang.Object

net.fortuna.ical4j.util.Strings

public final class Strings
extends java.lang.Object

$Id$ [23-Apr-2004] Utility methods for working with parameters.

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	LINE_SEPARATOR A string used to denote the start (and end) of iCalendar content lines.
static java.util.regex.Pattern	PARAM_QUOTE_PATTERN Defines a regular expression representing all parameter strings that should be quoted.

Method Summary

Modifier and Type	Method and Description
static java.lang.String	escape(java.lang.String aValue) Convenience method for escaping special characters.
static java.lang.String	escapeNewline(java.lang.String value)
static java.lang.String	quote(java.lang.Object aValue) Convenience method for adding quotes.
static java.lang.String	unescape(java.lang.String aValue) Convenience method for replacing escaped special characters with their original form.
static java.lang.String	unquote(java.lang.String aValue) Convenience method for removing surrounding quotes from a string value.
static java.lang.String	valueOf(java.lang.Object object) Wraps java.lang.String.valueOf() to return an empty string where the specified object is null.

Methods inherited from class java.lang.Object

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

Field Detail

PARAM_QUOTE_PATTERN

public static final java.util.regex.Pattern PARAM_QUOTE_PATTERN

Defines a regular expression representing all parameter strings that should be quoted.

LINE_SEPARATOR

public static final java.lang.String LINE_SEPARATOR

A string used to denote the start (and end) of iCalendar content lines.

See Also:

Constant Field Values

Method Detail

quote

public static java.lang.String quote(java.lang.Object aValue)

Convenience method for adding quotes. The specified object is converted to a string representation by calling its toString() method.

Parameters:

aValue - an object to quote

Returns:

a quoted string

unquote

public static java.lang.String unquote(java.lang.String aValue)

Convenience method for removing surrounding quotes from a string value.

Parameters:

aValue - a string to remove quotes from

Returns:

an un-quoted string

escape

public static java.lang.String escape(java.lang.String aValue)

Convenience method for escaping special characters.

Parameters:

aValue - a string value to escape

Returns:

an escaped representation of the specified string

unescape

public static java.lang.String unescape(java.lang.String aValue)

Convenience method for replacing escaped special characters with their original form.

Parameters:

aValue - a string value to unescape

Returns:

a string representation of the specified string with escaped characters replaced with their original form

escapeNewline

public static java.lang.String escapeNewline(java.lang.String value)

valueOf

public static java.lang.String valueOf(java.lang.Object object)

Wraps java.lang.String.valueOf() to return an empty string where the specified object is null.

Parameters:

object - an object instance

Returns:

a string representation of the object