ndnboost: Include boost::iostreams for internal use.
diff --git a/include/ndnboost/regex/v4/regbase.hpp b/include/ndnboost/regex/v4/regbase.hpp
new file mode 100644
index 0000000..7c52468
--- /dev/null
+++ b/include/ndnboost/regex/v4/regbase.hpp
@@ -0,0 +1,180 @@
+/*
+ *
+ * Copyright (c) 1998-2002
+ * John Maddock
+ *
+ * Use, modification and distribution are subject to 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)
+ *
+ */
+
+ /*
+ * LOCATION: see http://www.boost.org for most recent version.
+ * FILE regbase.cpp
+ * VERSION see <ndnboost/version.hpp>
+ * DESCRIPTION: Declares class regbase.
+ */
+
+#ifndef NDNBOOST_REGEX_V4_REGBASE_HPP
+#define NDNBOOST_REGEX_V4_REGBASE_HPP
+
+#ifdef NDNBOOST_MSVC
+#pragma warning(push)
+#pragma warning(disable: 4103)
+#endif
+#ifdef NDNBOOST_HAS_ABI_HEADERS
+# include NDNBOOST_ABI_PREFIX
+#endif
+#ifdef NDNBOOST_MSVC
+#pragma warning(pop)
+#endif
+
+namespace ndnboost{
+//
+// class regbase
+// handles error codes and flags
+//
+class NDNBOOST_REGEX_DECL regbase
+{
+public:
+ enum flag_type_
+ {
+ //
+ // Divide the flags up into logical groups:
+ // bits 0-7 indicate main synatx type.
+ // bits 8-15 indicate syntax subtype.
+ // bits 16-31 indicate options that are common to all
+ // regex syntaxes.
+ // In all cases the default is 0.
+ //
+ // Main synatx group:
+ //
+ perl_syntax_group = 0, // default
+ basic_syntax_group = 1, // POSIX basic
+ literal = 2, // all characters are literals
+ main_option_type = literal | basic_syntax_group | perl_syntax_group, // everything!
+ //
+ // options specific to perl group:
+ //
+ no_bk_refs = 1 << 8, // \d not allowed
+ no_perl_ex = 1 << 9, // disable perl extensions
+ no_mod_m = 1 << 10, // disable Perl m modifier
+ mod_x = 1 << 11, // Perl x modifier
+ mod_s = 1 << 12, // force s modifier on (overrides match_not_dot_newline)
+ no_mod_s = 1 << 13, // force s modifier off (overrides match_not_dot_newline)
+
+ //
+ // options specific to basic group:
+ //
+ no_char_classes = 1 << 8, // [[:CLASS:]] not allowed
+ no_intervals = 1 << 9, // {x,y} not allowed
+ bk_plus_qm = 1 << 10, // uses \+ and \?
+ bk_vbar = 1 << 11, // use \| for alternatives
+ emacs_ex = 1 << 12, // enables emacs extensions
+
+ //
+ // options common to all groups:
+ //
+ no_escape_in_lists = 1 << 16, // '\' not special inside [...]
+ newline_alt = 1 << 17, // \n is the same as |
+ no_except = 1 << 18, // no exception on error
+ failbit = 1 << 19, // error flag
+ icase = 1 << 20, // characters are matched regardless of case
+ nocollate = 0, // don't use locale specific collation (deprecated)
+ collate = 1 << 21, // use locale specific collation
+ nosubs = 1 << 22, // don't mark sub-expressions
+ save_subexpression_location = 1 << 23, // save subexpression locations
+ no_empty_expressions = 1 << 24, // no empty expressions allowed
+ optimize = 0, // not really supported
+
+
+
+ basic = basic_syntax_group | collate | no_escape_in_lists,
+ extended = no_bk_refs | collate | no_perl_ex | no_escape_in_lists,
+ normal = 0,
+ emacs = basic_syntax_group | collate | emacs_ex | bk_vbar,
+ awk = no_bk_refs | collate | no_perl_ex,
+ grep = basic | newline_alt,
+ egrep = extended | newline_alt,
+ sed = basic,
+ perl = normal,
+ ECMAScript = normal,
+ JavaScript = normal,
+ JScript = normal
+ };
+ typedef unsigned int flag_type;
+
+ enum restart_info
+ {
+ restart_any = 0,
+ restart_word = 1,
+ restart_line = 2,
+ restart_buf = 3,
+ restart_continue = 4,
+ restart_lit = 5,
+ restart_fixed_lit = 6,
+ restart_count = 7
+ };
+};
+
+//
+// provide std lib proposal compatible constants:
+//
+namespace regex_constants{
+
+ enum flag_type_
+ {
+
+ no_except = ::ndnboost::regbase::no_except,
+ failbit = ::ndnboost::regbase::failbit,
+ literal = ::ndnboost::regbase::literal,
+ icase = ::ndnboost::regbase::icase,
+ nocollate = ::ndnboost::regbase::nocollate,
+ collate = ::ndnboost::regbase::collate,
+ nosubs = ::ndnboost::regbase::nosubs,
+ optimize = ::ndnboost::regbase::optimize,
+ bk_plus_qm = ::ndnboost::regbase::bk_plus_qm,
+ bk_vbar = ::ndnboost::regbase::bk_vbar,
+ no_intervals = ::ndnboost::regbase::no_intervals,
+ no_char_classes = ::ndnboost::regbase::no_char_classes,
+ no_escape_in_lists = ::ndnboost::regbase::no_escape_in_lists,
+ no_mod_m = ::ndnboost::regbase::no_mod_m,
+ mod_x = ::ndnboost::regbase::mod_x,
+ mod_s = ::ndnboost::regbase::mod_s,
+ no_mod_s = ::ndnboost::regbase::no_mod_s,
+ save_subexpression_location = ::ndnboost::regbase::save_subexpression_location,
+ no_empty_expressions = ::ndnboost::regbase::no_empty_expressions,
+
+ basic = ::ndnboost::regbase::basic,
+ extended = ::ndnboost::regbase::extended,
+ normal = ::ndnboost::regbase::normal,
+ emacs = ::ndnboost::regbase::emacs,
+ awk = ::ndnboost::regbase::awk,
+ grep = ::ndnboost::regbase::grep,
+ egrep = ::ndnboost::regbase::egrep,
+ sed = basic,
+ perl = normal,
+ ECMAScript = normal,
+ JavaScript = normal,
+ JScript = normal
+ };
+ typedef ::ndnboost::regbase::flag_type syntax_option_type;
+
+} // namespace regex_constants
+
+} // namespace ndnboost
+
+#ifdef NDNBOOST_MSVC
+#pragma warning(push)
+#pragma warning(disable: 4103)
+#endif
+#ifdef NDNBOOST_HAS_ABI_HEADERS
+# include NDNBOOST_ABI_SUFFIX
+#endif
+#ifdef NDNBOOST_MSVC
+#pragma warning(pop)
+#endif
+
+#endif
+