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java.lang.Objectnet.sourceforge.pmd.ast.JavaCharStream
public class JavaCharStream
An implementation of interface CharStream, where the stream is assumed to contain only ASCII characters (with java-like unicode escape processing).
Field Summary | |
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protected int[] |
bufcolumn
|
protected char[] |
buffer
|
protected int[] |
bufline
|
int |
bufpos
|
protected int |
column
|
protected int |
inBuf
|
protected java.io.Reader |
inputStream
|
protected int |
line
|
protected int |
maxNextCharInd
|
protected char[] |
nextCharBuf
|
protected int |
nextCharInd
|
protected boolean |
prevCharIsCR
|
protected boolean |
prevCharIsLF
|
static boolean |
staticFlag
|
Constructor Summary | |
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JavaCharStream(java.io.InputStream dstream)
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JavaCharStream(java.io.InputStream dstream,
int startline,
int startcolumn)
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JavaCharStream(java.io.InputStream dstream,
int startline,
int startcolumn,
int buffersize)
|
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JavaCharStream(java.io.Reader dstream)
|
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JavaCharStream(java.io.Reader dstream,
int startline,
int startcolumn)
|
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JavaCharStream(java.io.Reader dstream,
int startline,
int startcolumn,
int buffersize)
|
Method Summary | |
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void |
adjustBeginLineColumn(int newLine,
int newCol)
Method to adjust line and column numbers for the start of a token. |
protected void |
AdjustBuffSize()
|
void |
backup(int amount)
Backs up the input stream by amount steps. |
char |
BeginToken()
Returns the next character that marks the beginning of the next token. |
void |
Done()
The lexer calls this function to indicate that it is done with the stream and hence implementations can free any resources held by this class. |
protected void |
ExpandBuff(boolean wrapAround)
|
protected void |
FillBuff()
|
int |
getBeginColumn()
Returns the column number of the first character for current token (being matched after the last call to BeginTOken). |
int |
getBeginLine()
Returns the line number of the first character for current token (being matched after the last call to BeginTOken). |
int |
getColumn()
Deprecated. |
int |
getEndColumn()
Returns the column number of the last character for current token (being matched after the last call to BeginTOken). |
int |
getEndLine()
Returns the line number of the last character for current token (being matched after the last call to BeginTOken). |
java.lang.String |
GetImage()
Returns a string made up of characters from the marked token beginning to the current buffer position. |
int |
getLine()
Deprecated. |
char[] |
GetSuffix(int len)
Returns an array of characters that make up the suffix of length 'len' for the currently matched token. |
protected char |
ReadByte()
|
char |
readChar()
Returns the next character from the selected input. |
void |
ReInit(java.io.InputStream dstream)
|
void |
ReInit(java.io.InputStream dstream,
int startline,
int startcolumn)
|
void |
ReInit(java.io.InputStream dstream,
int startline,
int startcolumn,
int buffersize)
|
void |
ReInit(java.io.Reader dstream)
|
void |
ReInit(java.io.Reader dstream,
int startline,
int startcolumn)
|
void |
ReInit(java.io.Reader dstream,
int startline,
int startcolumn,
int buffersize)
|
protected void |
UpdateLineColumn(char c)
|
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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public static final boolean staticFlag
public int bufpos
protected int[] bufline
protected int[] bufcolumn
protected int column
protected int line
protected boolean prevCharIsCR
protected boolean prevCharIsLF
protected java.io.Reader inputStream
protected char[] nextCharBuf
protected char[] buffer
protected int maxNextCharInd
protected int nextCharInd
protected int inBuf
Constructor Detail |
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public JavaCharStream(java.io.Reader dstream, int startline, int startcolumn, int buffersize)
public JavaCharStream(java.io.Reader dstream, int startline, int startcolumn)
public JavaCharStream(java.io.Reader dstream)
public JavaCharStream(java.io.InputStream dstream, int startline, int startcolumn, int buffersize)
public JavaCharStream(java.io.InputStream dstream, int startline, int startcolumn)
public JavaCharStream(java.io.InputStream dstream)
Method Detail |
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protected void ExpandBuff(boolean wrapAround)
protected void FillBuff() throws java.io.IOException
java.io.IOException
protected char ReadByte() throws java.io.IOException
java.io.IOException
public char BeginToken() throws java.io.IOException
CharStream
BeginToken
in interface CharStream
java.io.IOException
protected void AdjustBuffSize()
protected void UpdateLineColumn(char c)
public char readChar() throws java.io.IOException
CharStream
readChar
in interface CharStream
java.io.IOException
public int getColumn()
CharStream
getColumn
in interface CharStream
getEndColumn()
public int getLine()
CharStream
getLine
in interface CharStream
getEndLine()
public int getEndColumn()
CharStream
getEndColumn
in interface CharStream
public int getEndLine()
CharStream
getEndLine
in interface CharStream
public int getBeginColumn()
CharStream
getBeginColumn
in interface CharStream
public int getBeginLine()
CharStream
getBeginLine
in interface CharStream
public void backup(int amount)
CharStream
backup
in interface CharStream
public void ReInit(java.io.Reader dstream, int startline, int startcolumn, int buffersize)
public void ReInit(java.io.Reader dstream, int startline, int startcolumn)
public void ReInit(java.io.Reader dstream)
public void ReInit(java.io.InputStream dstream, int startline, int startcolumn, int buffersize)
public void ReInit(java.io.InputStream dstream, int startline, int startcolumn)
public void ReInit(java.io.InputStream dstream)
public java.lang.String GetImage()
CharStream
GetImage
in interface CharStream
public char[] GetSuffix(int len)
CharStream
GetSuffix
in interface CharStream
public void Done()
CharStream
Done
in interface CharStream
public void adjustBeginLineColumn(int newLine, int newCol)
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