CharStreampublic final class BackupCharStream extends java.lang.Object implements CharStream
| Modifier and Type | Field | Description |
|---|---|---|
static boolean |
staticFlag |
| Constructor | Description |
|---|---|
BackupCharStream(java.io.InputStream dstream,
int startline,
int startcolumn) |
|
BackupCharStream(java.io.InputStream dstream,
int startline,
int startcolumn,
int buffersize) |
|
BackupCharStream(java.io.Reader dstream) |
|
BackupCharStream(java.io.Reader dstream,
int startline,
int startcolumn) |
|
BackupCharStream(java.io.Reader dstream,
int startline,
int startcolumn,
int buffersize) |
| Modifier and Type | Method | Description |
|---|---|---|
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() |
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.
|
char |
readChar() |
Returns the next character from the selected input.
|
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) |
public static final boolean staticFlag
public BackupCharStream(java.io.Reader dstream)
public BackupCharStream(java.io.Reader dstream,
int startline,
int startcolumn,
int buffersize)
public BackupCharStream(java.io.Reader dstream,
int startline,
int startcolumn)
public BackupCharStream(java.io.InputStream dstream,
int startline,
int startcolumn,
int buffersize)
public BackupCharStream(java.io.InputStream dstream,
int startline,
int startcolumn)
public final char BeginToken()
throws java.io.IOException
CharStreamBeginToken in interface CharStreamjava.io.IOExceptionpublic final char readChar()
throws java.io.IOException
CharStreamreadChar in interface CharStreamjava.io.IOExceptionpublic final int getColumn()
getColumn in interface CharStreamgetEndColumn()public final int getLine()
getLine in interface CharStreamgetEndLine()public final int getEndColumn()
CharStreamgetEndColumn in interface CharStreampublic final int getEndLine()
CharStreamgetEndLine in interface CharStreampublic final int getBeginColumn()
CharStreamgetBeginColumn in interface CharStreampublic final int getBeginLine()
CharStreamgetBeginLine in interface CharStreampublic final void backup(int amount)
CharStreambackup in interface CharStreampublic 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 final java.lang.String GetImage()
CharStreamGetImage in interface CharStreampublic final char[] GetSuffix(int len)
CharStreamGetSuffix in interface CharStreampublic void Done()
CharStreamDone in interface CharStream