Class JavaCharStream
- java.lang.Object
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- org.apache.cayenne.template.parser.JavaCharStream
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public class JavaCharStream extends Object
An implementation of interface CharStream, where the stream is assumed to contain only ASCII characters (with java-like unicode escape processing).- Since:
- 4.1
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Field Summary
Fields Modifier and Type Field Description protected int[]bufcolumnprotected char[]bufferprotected int[]buflineintbufposPosition in buffer.protected intcolumnprotected intinBufprotected ReaderinputStreamprotected intlineprotected intmaxNextCharIndprotected char[]nextCharBufprotected intnextCharIndprotected booleanprevCharIsCRprotected booleanprevCharIsLFstatic booleanstaticFlagWhether parser is static.protected inttabSize
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Constructor Summary
Constructors Constructor Description JavaCharStream(InputStream dstream)Constructor.JavaCharStream(InputStream dstream, int startline, int startcolumn)Constructor.JavaCharStream(InputStream dstream, int startline, int startcolumn, int buffersize)Constructor.JavaCharStream(InputStream dstream, String encoding)Constructor.JavaCharStream(InputStream dstream, String encoding, int startline, int startcolumn)Constructor.JavaCharStream(InputStream dstream, String encoding, int startline, int startcolumn, int buffersize)Constructor.JavaCharStream(Reader dstream)Constructor.JavaCharStream(Reader dstream, int startline, int startcolumn)Constructor.JavaCharStream(Reader dstream, int startline, int startcolumn, int buffersize)Constructor.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description voidadjustBeginLineColumn(int newLine, int newCol)Method to adjust line and column numbers for the start of a token.protected voidAdjustBuffSize()voidbackup(int amount)Retreat.charBeginToken()voidDone()Set buffers back to null when finished.protected voidExpandBuff(boolean wrapAround)protected voidFillBuff()intgetBeginColumn()intgetBeginLine()intgetEndColumn()Get end column.intgetEndLine()Get end line.StringGetImage()char[]GetSuffix(int len)protected charReadByte()charreadChar()Read a character.voidReInit(InputStream dstream)Reinitialise.voidReInit(InputStream dstream, int startline, int startcolumn)Reinitialise.voidReInit(InputStream dstream, int startline, int startcolumn, int buffersize)Reinitialise.voidReInit(InputStream dstream, String encoding)Reinitialise.voidReInit(InputStream dstream, String encoding, int startline, int startcolumn)Reinitialise.voidReInit(InputStream dstream, String encoding, int startline, int startcolumn, int buffersize)Reinitialise.voidReInit(Reader dstream)Reinitialise.voidReInit(Reader dstream, int startline, int startcolumn)Reinitialise.voidReInit(Reader dstream, int startline, int startcolumn, int buffersize)Reinitialise.protected voidUpdateLineColumn(char c)
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Field Detail
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staticFlag
public static final boolean staticFlag
Whether parser is static.- See Also:
- Constant Field Values
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bufpos
public int bufpos
Position in buffer.
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bufline
protected int[] bufline
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bufcolumn
protected int[] bufcolumn
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column
protected int column
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line
protected int line
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prevCharIsCR
protected boolean prevCharIsCR
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prevCharIsLF
protected boolean prevCharIsLF
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inputStream
protected Reader inputStream
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nextCharBuf
protected char[] nextCharBuf
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buffer
protected char[] buffer
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maxNextCharInd
protected int maxNextCharInd
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nextCharInd
protected int nextCharInd
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inBuf
protected int inBuf
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tabSize
protected int tabSize
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Constructor Detail
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JavaCharStream
public JavaCharStream(Reader dstream, int startline, int startcolumn, int buffersize)
Constructor.
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JavaCharStream
public JavaCharStream(Reader dstream, int startline, int startcolumn)
Constructor.
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JavaCharStream
public JavaCharStream(Reader dstream)
Constructor.
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JavaCharStream
public JavaCharStream(InputStream dstream, String encoding, int startline, int startcolumn, int buffersize) throws UnsupportedEncodingException
Constructor.- Throws:
UnsupportedEncodingException
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JavaCharStream
public JavaCharStream(InputStream dstream, int startline, int startcolumn, int buffersize)
Constructor.
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JavaCharStream
public JavaCharStream(InputStream dstream, String encoding, int startline, int startcolumn) throws UnsupportedEncodingException
Constructor.- Throws:
UnsupportedEncodingException
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JavaCharStream
public JavaCharStream(InputStream dstream, int startline, int startcolumn)
Constructor.
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JavaCharStream
public JavaCharStream(InputStream dstream, String encoding) throws UnsupportedEncodingException
Constructor.- Throws:
UnsupportedEncodingException
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JavaCharStream
public JavaCharStream(InputStream dstream)
Constructor.
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Method Detail
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ExpandBuff
protected void ExpandBuff(boolean wrapAround)
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FillBuff
protected void FillBuff() throws IOException- Throws:
IOException
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ReadByte
protected char ReadByte() throws IOException- Throws:
IOException
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BeginToken
public char BeginToken() throws IOException- Returns:
- starting character for token.
- Throws:
IOException
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AdjustBuffSize
protected void AdjustBuffSize()
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UpdateLineColumn
protected void UpdateLineColumn(char c)
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readChar
public char readChar() throws IOExceptionRead a character.- Throws:
IOException
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getEndColumn
public int getEndColumn()
Get end column.
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getEndLine
public int getEndLine()
Get end line.
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getBeginColumn
public int getBeginColumn()
- Returns:
- column of token start
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getBeginLine
public int getBeginLine()
- Returns:
- line number of token start
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backup
public void backup(int amount)
Retreat.
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ReInit
public void ReInit(Reader dstream, int startline, int startcolumn, int buffersize)
Reinitialise.
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ReInit
public void ReInit(Reader dstream, int startline, int startcolumn)
Reinitialise.
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ReInit
public void ReInit(Reader dstream)
Reinitialise.
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ReInit
public void ReInit(InputStream dstream, String encoding, int startline, int startcolumn, int buffersize) throws UnsupportedEncodingException
Reinitialise.- Throws:
UnsupportedEncodingException
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ReInit
public void ReInit(InputStream dstream, int startline, int startcolumn, int buffersize)
Reinitialise.
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ReInit
public void ReInit(InputStream dstream, String encoding, int startline, int startcolumn) throws UnsupportedEncodingException
Reinitialise.- Throws:
UnsupportedEncodingException
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ReInit
public void ReInit(InputStream dstream, int startline, int startcolumn)
Reinitialise.
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ReInit
public void ReInit(InputStream dstream, String encoding) throws UnsupportedEncodingException
Reinitialise.- Throws:
UnsupportedEncodingException
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ReInit
public void ReInit(InputStream dstream)
Reinitialise.
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GetImage
public String GetImage()
- Returns:
- token image as String
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GetSuffix
public char[] GetSuffix(int len)
- Returns:
- suffix
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Done
public void Done()
Set buffers back to null when finished.
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adjustBeginLineColumn
public void adjustBeginLineColumn(int newLine, int newCol)Method to adjust line and column numbers for the start of a token.
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