Package dap4.core.util

Class Escape

java.lang.Object

dap4.core.util.Escape

public class Escape
extends Object

Provide various methods for (un)escaping text

Field Summary

Fields

Modifier and Type	Field	Description
static String	BACKSLASHESCAPE
static String[][]	DEFAULTTRANSTABLE
static String	ENTITYESCAPES
static String	hexchars

Constructor Summary

Constructors

Constructor	Description
Escape()

Method Summary

Modifier and Type	Method	Description
static String	backslashEscape(String s, String wrt)	Escape control chars plus selected other characters in a string using backslash The definitive list is in netcdf-c/ncgen/ncgen.l.
static List<String>	backslashsplit(String s, char sep)	Split a string with respect to a separator character and taking backslashes into consideration.
static String	backslashUnescape(String s)	Remove backslashed characters in a string
static String	bytes2hex(byte[] bytes)
static String	cleanString(String s)	Clean up a string: currently means: 1.
static boolean	entitychar(char c)
static String	entityEscape(String s, String wrt)	Escape selected characters in a string using XML entities
static String	entityUnescape(String s)
static String	entityUnescape(String s, String[][] translations)
static int	fromHex(char c)
static boolean	isHexDigit(char c)
static String	toHex(int i)
static String	urlDecode(String s)
static String	urlEncodeQuery(String s)

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULTTRANSTABLE

public static final String[][] DEFAULTTRANSTABLE

BACKSLASHESCAPE

public static final String BACKSLASHESCAPE

See Also:

Constant Field Values

ENTITYESCAPES

public static final String ENTITYESCAPES

See Also:

Constant Field Values

hexchars

public static final String hexchars

See Also:

Constant Field Values

Constructor Detail

Escape

public Escape()

Method Detail

entitychar

public static boolean entitychar(char c)

entityEscape

public static String entityEscape(String s,
                                  String wrt)

Escape selected characters in a string using XML entities

Parameters:

s - string to escape

wrt - which chars to escape

Returns:

escaped string

entityUnescape

public static String entityUnescape(String s)

entityUnescape

public static String entityUnescape(String s,
                                    String[][] translations)

backslashEscape

public static String backslashEscape(String s,
                                     String wrt)

Escape control chars plus selected other characters in a string using backslash The definitive list is in netcdf-c/ncgen/ncgen.l.

Parameters:

s - the string to escape

wrt - what printable characters to escape; control characters and '\\' are always escaped.

Returns:

escaped string

backslashUnescape

public static String backslashUnescape(String s)

Remove backslashed characters in a string

backslashsplit

public static List<String> backslashsplit(String s,
                                          char sep)

Split a string with respect to a separator character and taking backslashes into consideration.

Parameters:

s - The string to split

sep - The character on which to split

Returns:

a List of strings (all with escaping still intact) representing s split at unescaped instances of sep.

toHex

public static String toHex(int i)

fromHex

public static int fromHex(char c)

isHexDigit

public static boolean isHexDigit(char c)

bytes2hex

public static String bytes2hex(byte[] bytes)

urlDecode

public static String urlDecode(String s)

urlEncodeQuery

public static String urlEncodeQuery(String s)

cleanString

public static String cleanString(String s)

Clean up a string: currently means: 1. strip off everything after the first nul character

Parameters:

s - string to clean

Returns:

cleaned string