org.apache.karaf.util

Class StringEscapeUtils

java.lang.Object

org.apache.karaf.util.StringEscapeUtils

public class StringEscapeUtils
extends Object

Util class to manipulate String, especially around escape/unescape.

Constructor Summary

Constructors

Constructor and Description
StringEscapeUtils()

Method Summary

Modifier and Type	Method and Description
static String	escapeJava(String str) Escapes the characters in a String using Java String rules.
static String	hex(char ch) Returns an upper case hexadecimal String for the given character.
static String	unescapeJava(String str) Unescapes any Java literals found in the String to a Writer.

Methods inherited from class java.lang.Object

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

Constructor Detail

StringEscapeUtils

public StringEscapeUtils()

Method Detail

unescapeJava

public static String unescapeJava(String str)

Unescapes any Java literals found in the String to a Writer.

This is a slightly modified version of the StringEscapeUtils.unescapeJava() function in commons-lang that doesn't drop escaped separators (i.e '\,').

Parameters:

str - the String to unescape, may be null

Returns:

the processed string

Throws:

IllegalArgumentException - if the Writer is null

escapeJava

public static String escapeJava(String str)

Escapes the characters in a String using Java String rules.

Deals correctly with quotes and control-chars (tab, backslash, cr, ff, etc.)

So a tab becomes the characters '\\' and 't'.

The only difference between Java strings and JavaScript strings is that in JavaScript, a single quote must be escaped.

Example:

 input string: He didn't say, "Stop!"
 output string: He didn't say, \"Stop!\"
 

Parameters:

str - String to escape values in, may be null

Returns:

String with escaped values, null if null string input

hex

public static String hex(char ch)

Returns an upper case hexadecimal String for the given character.

Parameters:

ch - The character to convert.

Returns:

An upper case hexadecimal String