forked from mia/Aegisub
65 lines
2.6 KiB
C++
65 lines
2.6 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 option_visit.h
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/// @brief Cajun JSON visitor to load config values.
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/// @see option_visit.cpp
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/// @ingroup libaegisub
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#include "libaegisub/option.h"
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#include "libaegisub/cajun/elements.h"
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#include "libaegisub/cajun/visitor.h"
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#include <memory>
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#include <vector>
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namespace agi {
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DEFINE_BASE_EXCEPTION_NOINNER(OptionJsonValueError, Exception)
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DEFINE_SIMPLE_EXCEPTION_NOINNER(OptionJsonValueArray, OptionJsonValueError, "options/value/array")
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DEFINE_SIMPLE_EXCEPTION_NOINNER(OptionJsonValueSingle, OptionJsonValueError, "options/value")
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DEFINE_SIMPLE_EXCEPTION_NOINNER(OptionJsonValueNull, OptionJsonValueError, "options/value")
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class ConfigVisitor : public json::ConstVisitor {
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/// Option map being populated
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OptionValueMap &values;
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/// Option name prefix to add to read names
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std::string name;
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/// Log errors rather than throwing them, for when loading user config files
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/// (as a bad user config file shouldn't make the program fail to start)
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bool ignore_errors;
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/// Replace existing options rather than changing their value, so that the
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/// default value is changed to the new one
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bool replace;
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template<class ErrorType>
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void Error(const char *message);
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template<class OptionValueType, class ValueType>
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std::unique_ptr<OptionValue> ReadArray(json::Array const& src, std::string const& array_type, void (OptionValueType::*set_list)(const std::vector<ValueType>&));
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void AddOptionValue(std::unique_ptr<OptionValue>&& opt);
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public:
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ConfigVisitor(OptionValueMap &val, const std::string &member_name, bool ignore_errors = false, bool replace = false);
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void Visit(const json::Array& array);
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void Visit(const json::Object& object);
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void Visit(const json::Integer& number);
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void Visit(const json::Double& number);
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void Visit(const json::String& string);
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void Visit(const json::Boolean& boolean);
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void Visit(const json::Null& null);
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};
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} // namespace agi
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