dap4.core.util

Class Escape

java.lang.Object

dap4.core.util.Escape

public class Escape
extends java.lang.Object

Provide various methods for (un)escaping text

Field Summary

Fields

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

Constructor Summary

Constructors

Constructor and Description
Escape()

Method Summary

Modifier and Type	Method and Description
static java.lang.String	backslashEscape(java.lang.String s, java.lang.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 java.util.List<java.lang.String>	backslashsplit(java.lang.String s, char sep) Split a string with respect to a separator character and taking backslashes into consideration.
static java.lang.String	backslashUnescape(java.lang.String s) Remove backslashed characters in a string
static java.lang.String	bytes2hex(byte[] bytes)
static java.lang.String	cleanString(java.lang.String s) Clean up a string: currently means: 1.
static boolean	entitychar(char c)
static java.lang.String	entityEscape(java.lang.String s, java.lang.String wrt) Escape selected characters in a string using XML entities
static java.lang.String	entityUnescape(java.lang.String s)
static java.lang.String	entityUnescape(java.lang.String s, java.lang.String[][] translations)
static int	fromHex(char c)
static boolean	isHexDigit(char c)
static java.lang.String	toHex(int i)
static java.lang.String	urlDecode(java.lang.String s)
static java.lang.String	urlEncodeQuery(java.lang.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 java.lang.String[][] DEFAULTTRANSTABLE

BACKSLASHESCAPE

public static final java.lang.String BACKSLASHESCAPE

See Also:

Constant Field Values

ENTITYESCAPES

public static final java.lang.String ENTITYESCAPES

See Also:

Constant Field Values

hexchars

public static final java.lang.String hexchars

See Also:

Constant Field Values

Constructor Detail

Escape

public Escape()

Method Detail

entitychar

public static boolean entitychar(char c)

entityEscape

public static java.lang.String entityEscape(java.lang.String s,
                                            java.lang.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 java.lang.String entityUnescape(java.lang.String s)

entityUnescape

public static java.lang.String entityUnescape(java.lang.String s,
                                              java.lang.String[][] translations)

backslashEscape

public static java.lang.String backslashEscape(java.lang.String s,
                                               java.lang.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 java.lang.String backslashUnescape(java.lang.String s)

Remove backslashed characters in a string

backslashsplit

public static java.util.List<java.lang.String> backslashsplit(java.lang.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 java.lang.String toHex(int i)

fromHex

public static int fromHex(char c)

isHexDigit

public static boolean isHexDigit(char c)

bytes2hex

public static java.lang.String bytes2hex(byte[] bytes)

urlDecode

public static java.lang.String urlDecode(java.lang.String s)

urlEncodeQuery

public static java.lang.String urlEncodeQuery(java.lang.String s)

cleanString

public static java.lang.String cleanString(java.lang.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