69 lines
2.6 KiB
C++
69 lines
2.6 KiB
C++
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// Copyright 2012 Google Inc.
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution.
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// * Neither the name of Google Inc. nor the names of its contributors
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// may be used to endorse or promote products derived from this software
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// without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#include "utils/config/tree.ipp"
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#include "utils/config/exceptions.hpp"
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#include "utils/format/macros.hpp"
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#include "utils/text/operations.hpp"
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namespace config = utils::config;
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namespace text = utils::text;
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/// Converts a key to its textual representation.
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///
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/// \param key The key to convert.
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std::string
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utils::config::detail::flatten_key(const tree_key& key)
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{
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PRE(!key.empty());
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return text::join(key, ".");
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}
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/// Parses and validates a textual key.
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///
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/// \param str The key to process in dotted notation.
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///
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/// \return The tokenized key if valid.
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///
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/// \throw invalid_key_error If the input key is empty or invalid for any other
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/// reason. Invalid does NOT mean unknown though.
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utils::config::detail::tree_key
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utils::config::detail::parse_key(const std::string& str)
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{
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const tree_key key = text::split(str, '.');
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if (key.empty())
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throw invalid_key_error("Empty key");
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for (tree_key::const_iterator iter = key.begin(); iter != key.end(); iter++)
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if ((*iter).empty())
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throw invalid_key_error(F("Empty component in key '%s'") % str);
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return key;
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}
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