<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <HTML> <HEAD> <TITLE>Mutli-Character Filter</TITLE> <LINK REL="stylesheet" HREF="../../../../boost.css"> <LINK REL="stylesheet" HREF="../theme/iostreams.css"> </HEAD> <BODY> <!-- Begin Banner --> <H1 CLASS="title">Mutli-Character Filter</H1> <HR CLASS="banner"> <!-- End Banner --> <H2>Description</H2> <P><A HREF="filter.html">Filter</A> which provides access to its controlled sequence or sequences several characters at a time. The difference between a Filter which is Mutli-Character and one which is not is reflected in the specifications of the various Filter refinements. <I>See</I>, <I>e.g.</I>, <A HREF="input_filter.html">InputFilter</A> and <A HREF="output_filter.html">OutputFilter</A>.</P> <H2>Refinement of</H2> <P><A HREF="filter.html">Filter</A>.</P> <A NAME="types"></A> <H2>Associated Types</H2> <P>Same as <A HREF="filter.html#types">Filter</A>, with the following additional requirements:</P> <TABLE CELLPADDING="5" BORDER="1"> <TR><TD>Category</TD><TD>A type convertible to <A HREF="../guide/traits.html#category_tags"><CODE>filter_tag</CODE></A> and to <A HREF="../guide/traits.html#category_tags"><CODE>multichar_tag</CODE></A></TD></TR> </TABLE> <A NAME="expressions"></A> <H2>Valid Expressions / Semantics</H2> <P>Same as <A HREF="filter.html">Filter</A>.</P> <H2>Models</H2> <UL> <LI>The compression and decompression Filters <LI><A HREF="../classes/regex_filter.html"><CODE>basic_regex_filter</CODE></A> <LI><A HREF="../classes/aggregate.html"><CODE>aggregate_filter</CODE></A> <LI><A HREF="../classes/symmetric_filter.html"><CODE>symmetric_filter</CODE></A> </UL> <!-- Begin Footer --> <HR> <P CLASS="copyright">Revised 02 Feb 2008</P> <P CLASS="copyright">© Copyright 2008 <a href="http://www.coderage.com/" target="_top">CodeRage, LLC</a><br/>© Copyright 2004-2007 <a href="http://www.coderage.com/turkanis/" target="_top">Jonathan Turkanis</a></P> <P CLASS="copyright"> Distributed under the Boost Software License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at <A HREF="http://www.boost.org/LICENSE_1_0.txt">http://www.boost.org/LICENSE_1_0.txt</A>) </P> <!-- End Footer --> </BODY>