rstudio/src/cpp/core/YamlUtil.cpp at master · andschar/rstudio · GitHub

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* YamlUtil.cpp

* Unless you have received this program directly from RStudio pursuant

* to the terms of a commercial license agreement with RStudio, then

* this program is licensed to you under the terms of version 3 of the

* GNU Affero General Public License. This program is distributed WITHOUT

* ANY EXPRESS OR IMPLIED WARRANTY, INCLUDING THOSE OF NON-INFRINGEMENT,

* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Please refer to the

* AGPL (http://www.gnu.org/licenses/agpl-3.0.txt) for more details.

#include <core/YamlUtil.hpp>

#include <boost/regex.hpp>

#include <core/Error.hpp>

#include <core/FileSerializer.hpp>

#include <core/Log.hpp>

#include <core/RegexUtils.hpp>

namespace rstudio {

namespace core {

namespace yaml {

namespace {

const boost::regex& reYaml()

{

static boost::regex instance("^[\\s\\n]*---\\s*(.*?)---\\s*(?:$|\\n)");

return instance;

}

} // anonymous namespace

bool hasYamlHeader(const FilePath& filePath)

{

std::string contents;

Error error = readStringFromFile(filePath, &contents);

if (error)

LOG_ERROR(error);

return hasYamlHeader(contents);

}

bool hasYamlHeader(const std::string& content)

{

return regex_utils::search(content.begin(), content.end(), reYaml());

}

std::string extractYamlHeader(const FilePath& filePath)

{

std::string contents;

Error error = readStringFromFile(filePath, &contents);

if (error)

LOG_ERROR(error);

return extractYamlHeader(contents);

}

std::string extractYamlHeader(const std::string& content)

{

std::string result;

boost::smatch match;

if (regex_utils::search(content.begin(), content.end(), match, reYaml()))

if (match.size() >= 1)

result = match[1];

return result;

}

} // namespace yaml

} // namespace core

} // namespace rstudio

rstudio/src/cpp/core/YamlUtil.cpp at master · andschar/rstudio · GitHub

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