Package org.codehaus.groovy.antlr
Class UnicodeEscapingReader
- java.lang.Object
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- java.io.Reader
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- org.codehaus.groovy.antlr.UnicodeEscapingReader
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- All Implemented Interfaces:
java.io.Closeable
,java.lang.AutoCloseable
,java.lang.Readable
public class UnicodeEscapingReader extends java.io.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.
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Constructor Summary
Constructors Constructor Description UnicodeEscapingReader(java.io.Reader reader, SourceBuffer sourceBuffer)
Constructor.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description 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(antlr.CharScanner lexer)
Sets the lexer that is using this reader.
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Constructor Detail
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UnicodeEscapingReader
public UnicodeEscapingReader(java.io.Reader reader, SourceBuffer sourceBuffer)
Constructor.- Parameters:
reader
- The reader that this reader will filter over.
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Method Detail
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setLexer
public void setLexer(antlr.CharScanner lexer)
Sets the lexer that is using this reader. Must be called before the lexer is used.
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read
public int read(char[] cbuf, int off, int len) throws java.io.IOException
Reads characters from the underlying reader.- Specified by:
read
in classjava.io.Reader
- Throws:
java.io.IOException
- See Also:
Reader.read(char[],int,int)
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read
public int read() throws java.io.IOException
Gets the next character from the underlying reader, translating escapes as required.- Overrides:
read
in classjava.io.Reader
- Throws:
java.io.IOException
- See Also:
Reader.close()
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getUnescapedUnicodeColumnCount
public int getUnescapedUnicodeColumnCount()
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getUnescapedUnicodeOffsetCount
public int getUnescapedUnicodeOffsetCount()
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close
public void close() throws java.io.IOException
Closes this reader by calling close on the underlying reader.- Specified by:
close
in interfacejava.lang.AutoCloseable
- Specified by:
close
in interfacejava.io.Closeable
- Specified by:
close
in classjava.io.Reader
- Throws:
java.io.IOException
- See Also:
Reader.close()
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