Split Section to its own header and add convenience accessors

src/ripple/core/impl/Section.cpp

@@ -0,0 +1,77 @@
+//------------------------------------------------------------------------------
+/*
+    This file is part of rippled: https://github.com/ripple/rippled
+    Copyright (c) 2012, 2013 Ripple Labs Inc.
+
+    Permission to use, copy, modify, and/or distribute this software for any
+    purpose  with  or without fee is hereby granted, provided that the above
+    copyright notice and this permission notice appear in all copies.
+
+    THE  SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+    WITH  REGARD  TO  THIS  SOFTWARE  INCLUDING  ALL  IMPLIED  WARRANTIES  OF
+    MERCHANTABILITY  AND  FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+    ANY  SPECIAL ,  DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+    WHATSOEVER  RESULTING  FROM  LOSS  OF USE, DATA OR PROFITS, WHETHER IN AN
+    ACTION  OF  CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+//==============================================================================
+
+#include <ripple/core/Section.h>
+#include <boost/regex.hpp>
+
+namespace ripple {
+
+void
+Section::append (std::vector <std::string> const& lines)
+{
+    // <key> '=' <value>
+    static boost::regex const re1 (
+        "^"                         // start of line
+        "(?:\\s*)"                  // whitespace (optonal)
+        "([a-zA-Z][_a-zA-Z0-9]*)"   // <key>
+        "(?:\\s*)"                  // whitespace (optional)
+        "(?:=)"                     // '='
+        "(?:\\s*)"                  // whitespace (optional)
+        "(.*\\S+)"                  // <value>
+        "(?:\\s*)"                  // whitespace (optional)
+        , boost::regex_constants::optimize
+    );
+
+    lines_.reserve (lines_.size() + lines.size());
+    for (auto const& line : lines)
+    {
+        boost::smatch match;
+        lines_.push_back (line);
+        if (boost::regex_match (line, match, re1))
+        {
+            /*auto const result =*/ map_.emplace (
+                std::make_pair (match[1], match[2]));
+#if 0
+            if (! result.second)
+            {
+                // If we decide on how to merge values we can do it here.
+            }
+            beast::debug_ostream log;
+            //log << "\"" << match[1] << "\" = \"" << match[2] << "\"";
+#endif
+        }
+    }
+}
+
+bool
+Section::exists (std::string const& name) const
+{
+    return map_.find (name) != map_.end();
+}
+
+std::pair <std::string, bool>
+Section::find (std::string const& name) const
+{
+    auto const iter = map_.find (name);
+    if (iter == map_.end())
+        return {{}, false};
+    return {iter->second, true};
+}
+
+} // ripple