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java.lang.Object org.python.parser.ReaderCharStream
An implementation of interface CharStream, where the data is read from a Reader. This file started life as a copy of ASCII_CharStream.java.
Field Summary | |
int |
bufpos
|
static boolean |
staticFlag
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Constructor Summary | |
ReaderCharStream(Reader dstream)
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Method Summary | |
void |
adjustBeginLineColumn(int newLine,
int newCol)
Method to adjust line and column numbers for the start of a token. |
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. |
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()
Returns the column position of the character last read. |
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). |
String |
GetImage()
Returns a string made up of characters from the marked token beginning to the current buffer position. |
int |
getLine()
Returns the line number of the character last read. |
char[] |
GetSuffix(int len)
Returns an array of characters that make up the suffix of length 'len' for the currently matched token. |
char |
readChar()
Returns the next character from the selected input. |
Methods inherited from class java.lang.Object |
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
public static final boolean staticFlag
public int bufpos
Constructor Detail |
public ReaderCharStream(Reader dstream)
Method Detail |
public final char BeginToken() throws IOException
CharStream
BeginToken
in interface CharStream
IOException
public final char readChar() throws IOException
CharStream
readChar
in interface CharStream
IOException
public final int getColumn()
CharStream
getColumn
in interface CharStream
getEndColumn()
public final int getLine()
CharStream
getLine
in interface CharStream
getEndLine()
public final int getEndColumn()
CharStream
getEndColumn
in interface CharStream
public final int getEndLine()
CharStream
getEndLine
in interface CharStream
public final int getBeginColumn()
CharStream
getBeginColumn
in interface CharStream
public final int getBeginLine()
CharStream
getBeginLine
in interface CharStream
public final void backup(int amount)
CharStream
backup
in interface CharStream
public final String GetImage()
CharStream
GetImage
in interface CharStream
public final 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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