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89 lines
2.5 KiB
HTML
Executable File
89 lines
2.5 KiB
HTML
Executable File
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<HTML>
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<HEAD>
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<LINK REL="stylesheet" HREF="../../../../boost.css">
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<LINK REL="stylesheet" HREF="../theme/iostreams.css">
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<STYLE>
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PRE { background-color: white; border:0; font-size: 10pt }
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</STYLE>
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<TITLE>Tab-expanding OutputFilter Example Output</TITLE>
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</HEAD>
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<BODY>
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<PRE>**** Code with tabs ****
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class tab_expanding_output_filter : public output_filter {
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public:
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explicit tab_expanding_output_filter(int tab_size = 8)
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: tab_size_(tab_size), col_no_(0)
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{ assert(tab_size > 0); }
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template<typename Sink>
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void put(Sink& dest, int c)
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{
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if (c == '\t') {
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do {
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this->put(dest, ' ');
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} while(col_no_ % tab_size_ != 0);
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} else {
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boost::iostreams::put(dest, c);
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if (c == '\n')
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col_no_ = 0;
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else
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++col_no_;
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}
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}
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templatetypename Sink
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void close(Sink&) { col_no_ = 0; }
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private:
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int tab_size_;
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int col_no_;
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};
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**** Code with tabs replaced ****
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class tab_expanding_output_filter : public output_filter {
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public:
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explicit tab_expanding_output_filter(int tab_size = 8)
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: tab_size_(tab_size), col_no_(0)
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{ assert(tab_size > 0); }
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template<typename Sink>
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void put(Sink& dest, int c)
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{
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if (c == '\t') {
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do {
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this->put(dest, ' ');
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} while(col_no_ % tab_size_ != 0);
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} else {
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boost::iostreams::put(dest, c);
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if (c == '\n')
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col_no_ = 0;
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else
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++col_no_;
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}
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}
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template<typename Sink>
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void close(Sink&) { col_no_ = 0; }
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private:
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int tab_size_;
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int col_no_;
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};
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</PRE>
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<!-- Begin Footer -->
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<HR>
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<P CLASS="copyright">Revised
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<!--webbot bot="Timestamp" S-Type="EDITED" S-Format="%d %B, %Y" startspan -->
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20 May, 2004
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<!--webbot bot="Timestamp" endspan i-checksum="38504" -->
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</P>
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<P CLASS="copyright">© Copyright Jonathan Turkanis, 2004</P>
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<P CLASS="copyright">
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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>)
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</P>
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<!-- End Footer -->
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</BODY> |