com.google.common.escape

Class Escapers.Builder

java.lang.Object

com.google.common.escape.Escapers.Builder

Enclosing class:

Escapers

@Beta
public static final class Escapers.Builder
extends Object

A builder for simple, fast escapers.

Typically an escaper needs to deal with the escaping of high valued characters or code points. In these cases it is necessary to extend either ArrayBasedCharEscaper or ArrayBasedUnicodeEscaper to provide the desired behavior. However this builder is suitable for creating escapers that replace a relative small set of characters.

Since:

15.0

Author:

David Beaumont

Method Summary

Modifier and Type	Method and Description
Escapers.Builder	addEscape(char c, String replacement) Adds a replacement string for the given input character.
Escaper	build() Returns a new escaper based on the current state of the builder.
Escapers.Builder	setSafeRange(char safeMin, char safeMax) Sets the safe range of characters for the escaper.
Escapers.Builder	setUnsafeReplacement(String unsafeReplacement) Sets the replacement string for any characters outside the 'safe' range that have no explicit replacement.

Methods inherited from class java.lang.Object

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

Method Detail

setSafeRange

public Escapers.Builder setSafeRange(char safeMin,
                                     char safeMax)

Sets the safe range of characters for the escaper. Characters in this range that have no explicit replacement are considered 'safe' and remain unescaped in the output. If safeMax < safeMin then the safe range is empty.

Parameters:

safeMin - the lowest 'safe' character

safeMax - the highest 'safe' character

Returns:

the builder instance

setUnsafeReplacement

public Escapers.Builder setUnsafeReplacement(@Nullable
                                             String unsafeReplacement)

Sets the replacement string for any characters outside the 'safe' range that have no explicit replacement. If unsafeReplacement is null then no replacement will occur, if it is "" then the unsafe characters are removed from the output.

Parameters:

unsafeReplacement - the string to replace unsafe chracters

Returns:

the builder instance

addEscape

public Escapers.Builder addEscape(char c,
                                  String replacement)

Adds a replacement string for the given input character. The specified character will be replaced by the given string whenever it occurs in the input, irrespective of whether it lies inside or outside the 'safe' range.

Parameters:

c - the character to be replaced

replacement - the string to replace the given character

Returns:

the builder instance

Throws:

NullPointerException - if replacement is null

build

public Escaper build()

Returns a new escaper based on the current state of the builder.