mirror of https://github.com/odrling/Aegisub
63 lines
2.1 KiB
C++
63 lines
2.1 KiB
C++
// Copyright (c) 2010, Amar Takhar <verm@aegisub.org>
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//
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// Permission to use, copy, modify, and distribute this software for any
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// purpose with or without fee is hereby granted, provided that the above
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// copyright notice and this permission notice appear in all copies.
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//
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// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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/// @file json.cpp
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/// @brief Parse JSON files and return json::UnknownElement
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/// @ingroup libaegisub io
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#include "libaegisub/json.h"
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#include "libaegisub/cajun/reader.h"
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#include "libaegisub/fs.h"
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#include "libaegisub/io.h"
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#include "libaegisub/log.h"
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#include <boost/interprocess/streams/bufferstream.hpp>
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namespace agi { namespace json_util {
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json::UnknownElement parse(std::istream &stream) {
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try {
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json::UnknownElement root;
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json::Reader::Read(root, stream);
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return root;
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} catch (json::Reader::ParseException& e) {
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LOG_E("json/parse") << "json::ParseException: " << e.what() << ", Line/offset: " << e.m_locTokenBegin.m_nLine + 1 << '/' << e.m_locTokenBegin.m_nLineOffset + 1;
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throw;
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} catch (json::Exception& e) {
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LOG_E("json/parse") << "json::Exception: " << e.what();
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throw;
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}
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}
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json::UnknownElement file(agi::fs::path const& file, std::pair<const char *, size_t> default_config) {
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try {
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if (fs::FileExists(file))
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return parse(*io::Open(file));
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}
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catch (fs::FileNotFound const&) {
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// Not an error
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}
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catch (json::Exception&) {
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// Already logged in parse
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}
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catch (agi::Exception& e) {
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LOG_E("json/file") << "Unexpected error when reading config file " << file << ": " << e.GetMessage();
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}
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boost::interprocess::ibufferstream stream(default_config.first, default_config.second);
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return parse(stream);
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}
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} }
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