ndnboost: Include boost::iostreams for internal use.
diff --git a/include/ndnboost/iostreams/filter/regex.hpp b/include/ndnboost/iostreams/filter/regex.hpp
new file mode 100644
index 0000000..3bc599a
--- /dev/null
+++ b/include/ndnboost/iostreams/filter/regex.hpp
@@ -0,0 +1,98 @@
+// (C) Copyright 2008 CodeRage, LLC (turkanis at coderage dot com)
+// (C) Copyright 2003-2007 Jonathan Turkanis
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt.)
+
+// See http://www.boost.org/libs/iostreams for documentation.
+
+#ifndef NDNBOOST_IOSTREAMS_REGEX_FILTER_HPP_INCLUDED
+#define NDNBOOST_IOSTREAMS_REGEX_FILTER_HPP_INCLUDED
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+#include <memory> // allocator.
+#include <ndnboost/function.hpp>
+#include <ndnboost/iostreams/filter/aggregate.hpp>
+#include <ndnboost/iostreams/pipeline.hpp>
+#include <ndnboost/regex.hpp>
+
+namespace ndnboost { namespace iostreams {
+
+template< typename Ch,
+ typename Tr = regex_traits<Ch>,
+ typename Alloc = std::allocator<Ch> >
+class basic_regex_filter : public aggregate_filter<Ch, Alloc> {
+private:
+ typedef aggregate_filter<Ch, Alloc> base_type;
+public:
+ typedef typename base_type::char_type char_type;
+ typedef typename base_type::category category;
+ typedef std::basic_string<Ch> string_type;
+ typedef basic_regex<Ch, Tr> regex_type;
+ typedef regex_constants::match_flag_type flag_type;
+ typedef match_results<const Ch*> match_type;
+ typedef function1<string_type, const match_type&> formatter;
+
+ basic_regex_filter( const regex_type& re,
+ const formatter& replace,
+ flag_type flags = regex_constants::match_default )
+ : re_(re), replace_(replace), flags_(flags) { }
+ basic_regex_filter( const regex_type& re,
+ const string_type& fmt,
+ flag_type flags = regex_constants::match_default,
+ flag_type fmt_flags = regex_constants::format_default )
+ : re_(re), replace_(simple_formatter(fmt, fmt_flags)), flags_(flags) { }
+ basic_regex_filter( const regex_type& re,
+ const char_type* fmt,
+ flag_type flags = regex_constants::match_default,
+ flag_type fmt_flags = regex_constants::format_default )
+ : re_(re), replace_(simple_formatter(fmt, fmt_flags)), flags_(flags) { }
+private:
+ typedef typename base_type::vector_type vector_type;
+ void do_filter(const vector_type& src, vector_type& dest)
+ {
+ typedef regex_iterator<const Ch*, Ch, Tr> iterator;
+ if (src.empty())
+ return;
+ iterator first(&src[0], &src[0] + src.size(), re_, flags_);
+ iterator last;
+ const Ch* suffix = 0;
+ for (; first != last; ++first) {
+ dest.insert( dest.end(),
+ first->prefix().first,
+ first->prefix().second );
+ string_type replacement = replace_(*first);
+ dest.insert( dest.end(),
+ replacement.begin(),
+ replacement.end() );
+ suffix = first->suffix().first;
+ }
+ if (suffix) {
+ dest.insert(dest.end(), suffix, &src[0] + src.size());
+ } else {
+ dest.insert(dest.end(), &src[0], &src[0] + src.size());
+ }
+ }
+ struct simple_formatter {
+ simple_formatter(const string_type& fmt, flag_type fmt_flags)
+ : fmt_(fmt), fmt_flags_(fmt_flags) { }
+ string_type operator() (const match_type& match) const
+ { return match.format(fmt_, fmt_flags_); }
+ string_type fmt_;
+ flag_type fmt_flags_;
+ };
+ regex_type re_;
+ formatter replace_;
+ flag_type flags_;
+};
+NDNBOOST_IOSTREAMS_PIPABLE(basic_regex_filter, 3)
+
+typedef basic_regex_filter<char> regex_filter;
+typedef basic_regex_filter<wchar_t> wregex_filter;
+
+
+} } // End namespaces iostreams, boost.
+
+#endif // #ifndef NDNBOOST_IOSTREAMS_REGEX_FILTER_HPP_INCLUDED