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b0d29bc47d
Having kyua in the base system will simplify automated testing in CI and eliminates bootstrapping issues on new platforms. The build of kyua is controlled by WITH(OUT)_TESTS_SUPPORT. Reviewed by: emaste Obtained from: CheriBSD Sponsored by: DARPA Differential Revision: https://reviews.freebsd.org/D24103
91 lines
3.4 KiB
C++
91 lines
3.4 KiB
C++
// Copyright 2012 The Kyua Authors.
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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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#if !defined(UTILS_TEXT_OPERATIONS_IPP)
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#define UTILS_TEXT_OPERATIONS_IPP
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#include "utils/text/operations.hpp"
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#include <sstream>
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#include "utils/text/exceptions.hpp"
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/// Concatenates a collection of strings into a single string.
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///
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/// \param strings The collection of strings to concatenate. If the collection
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/// is unordered, the ordering in the output is undefined.
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/// \param delimiter The delimiter to use to separate the strings.
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///
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/// \return The concatenated strings.
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template< typename Collection >
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std::string
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utils::text::join(const Collection& strings, const std::string& delimiter)
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{
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std::ostringstream output;
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if (strings.size() > 1) {
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for (typename Collection::const_iterator iter = strings.begin();
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iter != --strings.end(); ++iter)
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output << (*iter) << delimiter;
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}
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if (strings.size() > 0)
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output << *(--strings.end());
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return output.str();
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}
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/// Converts a string to a native type.
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///
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/// \tparam Type The type to convert the string to. An input stream operator
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/// must exist to extract such a type from an std::istream.
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/// \param str The string to convert.
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///
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/// \return The converted string, if the input string was valid.
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///
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/// \throw std::value_error If the input string does not represent a valid
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/// target type. This exception does not include any details, so the caller
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/// must take care to re-raise it with appropriate details.
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template< typename Type >
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Type
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utils::text::to_type(const std::string& str)
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{
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if (str.empty())
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throw text::value_error("Empty string");
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if (str[0] == ' ')
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throw text::value_error("Invalid value");
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std::istringstream input(str);
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Type value;
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input >> value;
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if (!input.eof() || input.bad() || input.fail())
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throw text::value_error("Invalid value");
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return value;
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}
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#endif // !defined(UTILS_TEXT_OPERATIONS_IPP)
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