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java.lang.Objectfr.gouv.culture.sdx.search.lucene.queryparser.FastCharStream
An efficient implementation of JavaCC's CharStream interface.
Note that
this does not do line-number counting, but instead keeps track of the
character position of the token in the input, as required by Lucene's Token API.
| Constructor Summary | |
FastCharStream(java.io.Reader r)
Constructs from a Reader. |
|
| Method Summary | |
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). |
java.lang.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 |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
public FastCharStream(java.io.Reader r)
| Method Detail |
public final char readChar()
throws java.io.IOException
CharStream
readChar in interface CharStreamjava.io.IOException
public final char BeginToken()
throws java.io.IOException
CharStream
BeginToken in interface CharStreamjava.io.IOExceptionpublic final void backup(int amount)
CharStream
backup in interface CharStreampublic final java.lang.String GetImage()
CharStream
GetImage in interface CharStreampublic final char[] GetSuffix(int len)
CharStream
GetSuffix in interface CharStreampublic final void Done()
CharStream
Done in interface CharStreampublic final int getColumn()
CharStream
getColumn in interface CharStreamCharStream.getEndColumn()public final int getLine()
CharStream
getLine in interface CharStreamCharStream.getEndLine()public final int getEndColumn()
CharStream
getEndColumn in interface CharStreampublic final int getEndLine()
CharStream
getEndLine in interface CharStreampublic final int getBeginColumn()
CharStream
getBeginColumn in interface CharStreampublic final int getBeginLine()
CharStream
getBeginLine in interface CharStream
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