org.codehaus.groovy.antlr

## Class UnicodeEscapingReader

- java.lang.Object
- - java.io.Reader
  - - org.codehaus.groovy.antlr.UnicodeEscapingReader

All Implemented Interfaces:
  Closeable, AutoCloseable, Readable

    public class UnicodeEscapingReader
    extends Reader

Translates GLS-defined unicode escapes into characters. Throws an exception in the event of an invalid unicode escape being detected.

No attempt has been made to optimize this class for speed or space.

Version:
  $Revision: 21735 $

### Field Summary

### Fields inherited from class java.io.Reader

`lock`

### Constructor Summary

Constructors
Constructor and Description
`UnicodeEscapingReader(Reader reader, SourceBuffer sourceBuffer)` Constructor.

### Method Summary

Methods
`void` `close()` Closes this reader by calling close on the underlying reader.
`int` `getUnescapedUnicodeColumnCount()`
`int` `getUnescapedUnicodeOffsetCount()`
`int` `read()` Gets the next character from the underlying reader, translating escapes as required.
`int` `read(char[] cbuf, int off, int len)` Reads characters from the underlying reader.
`void` `setLexer(CharScanner lexer)` Sets the lexer that is using this reader.

### Methods inherited from class java.io.Reader

`mark, markSupported, read, read, ready, reset, skip`

### Methods inherited from class java.lang.Object

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

### Constructor Detail

#### UnicodeEscapingReader

    public UnicodeEscapingReader(Reader reader,
                         SourceBuffer sourceBuffer)

Constructor.

Parameters:
  `reader` - The reader that this reader will filter over.

### Method Detail

#### setLexer

    public void setLexer(CharScanner lexer)

Sets the lexer that is using this reader. Must be called before the lexer is used.

#### read

    public int read(char[] cbuf,
           int off,
           int len)
             throws IOException

Reads characters from the underlying reader.

Specified by:
  `read` in class `Reader`
Throws:
  `IOException`
See Also:
  `Reader.read(char[],int,int)`

#### read

    public int read()
             throws IOException

Gets the next character from the underlying reader, translating escapes as required.

Overrides:
  `read` in class `Reader`
Throws:
  `IOException`
See Also:
  `Reader.close()`

#### getUnescapedUnicodeColumnCount

    public int getUnescapedUnicodeColumnCount()

#### getUnescapedUnicodeOffsetCount

    public int getUnescapedUnicodeOffsetCount()

#### close

    public void close()
               throws IOException

Closes this reader by calling close on the underlying reader.

Specified by:
  `close` in interface `Closeable`
Specified by:
  `close` in interface `AutoCloseable`
Specified by:
  `close` in class `Reader`
Throws:
  `IOException`
See Also:
  `Reader.close()`