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FastCharStream (Lucene 2.1.0 API)
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org.apache.lucene.queryParser</FONT>
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Class FastCharStream</H2>
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<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html" title="class or interface in java.lang">java.lang.Object</A>
<IMG SRC="../../../../resources/inherit.gif" ALT="extended by"><B>org.apache.lucene.queryParser.FastCharStream</B>
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<DT><B>All Implemented Interfaces:</B> <DD><A HREF="../../../../org/apache/lucene/queryParser/CharStream.html" title="interface in org.apache.lucene.queryParser">CharStream</A></DD>
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<DT>public final class <B>FastCharStream</B><DT>extends <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A><DT>implements <A HREF="../../../../org/apache/lucene/queryParser/CharStream.html" title="interface in org.apache.lucene.queryParser">CharStream</A></DL>
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An efficient implementation of JavaCC's CharStream interface. <p>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 <A HREF="../../../../org/apache/lucene/analysis/Token.html" title="class in org.apache.lucene.analysis"><CODE>Token</CODE></A> API.
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<TD><CODE><B><A HREF="../../../../org/apache/lucene/queryParser/FastCharStream.html#FastCharStream(java.io.Reader)">FastCharStream</A></B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/Reader.html" title="class or interface in java.io">Reader</A> r)</CODE>
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Constructs from a Reader.</TD>
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<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/lucene/queryParser/FastCharStream.html#backup(int)">backup</A></B>(int amount)</CODE>
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Backs up the input stream by amount steps.</TD>
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<CODE> char</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/lucene/queryParser/FastCharStream.html#BeginToken()">BeginToken</A></B>()</CODE>
<BR>
Returns the next character that marks the beginning of the next token.</TD>
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<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/lucene/queryParser/FastCharStream.html#Done()">Done</A></B>()</CODE>
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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.</TD>
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<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/lucene/queryParser/FastCharStream.html#getBeginColumn()">getBeginColumn</A></B>()</CODE>
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Returns the column number of the first character for current token (being matched after the last call to BeginTOken).</TD>
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<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/lucene/queryParser/FastCharStream.html#getBeginLine()">getBeginLine</A></B>()</CODE>
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Returns the line number of the first character for current token (being matched after the last call to BeginTOken).</TD>
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<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/lucene/queryParser/FastCharStream.html#getColumn()">getColumn</A></B>()</CODE>
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Returns the column position of the character last read.</TD>
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<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/lucene/queryParser/FastCharStream.html#getEndColumn()">getEndColumn</A></B>()</CODE>
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Returns the column number of the last character for current token (being matched after the last call to BeginTOken).</TD>
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<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/lucene/queryParser/FastCharStream.html#getEndLine()">getEndLine</A></B>()</CODE>
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Returns the line number of the last character for current token (being matched after the last call to BeginTOken).</TD>
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<CODE> <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/lucene/queryParser/FastCharStream.html#GetImage()">GetImage</A></B>()</CODE>
<BR>
Returns a string made up of characters from the marked token beginning to the current buffer position.</TD>
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<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/lucene/queryParser/FastCharStream.html#getLine()">getLine</A></B>()</CODE>
<BR>
Returns the line number of the character last read.</TD>
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<CODE> char[]</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/lucene/queryParser/FastCharStream.html#GetSuffix(int)">GetSuffix</A></B>(int len)</CODE>
<BR>
Returns an array of characters that make up the suffix of length 'len' for the currently matched token.</TD>
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<CODE> char</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/lucene/queryParser/FastCharStream.html#readChar()">readChar</A></B>()</CODE>
<BR>
Returns the next character from the selected input.</TD>
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<A NAME="FastCharStream(java.io.Reader)"><!-- --></A><H3>
FastCharStream</H3>
<PRE>
public <B>FastCharStream</B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/Reader.html" title="class or interface in java.io">Reader</A> r)</PRE>
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<DD>Constructs from a Reader.
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<A NAME="readChar()"><!-- --></A><H3>
readChar</H3>
<PRE>
public final char <B>readChar</B>() throws <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/IOException.html" title="class or interface in java.io">IOException</A></PRE>
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