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87 lines
2.5 KiB
87 lines
2.5 KiB
2 years ago
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/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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file Copyright.txt or https://cmake.org/licensing for details. */
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#pragma once
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#include <cstdint> // IWYU pragma: keep
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#include <string>
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#include <vector>
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#include <cm/optional>
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#include <cm/string_view>
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#include <cmext/enum_set>
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#include <cmext/string_view>
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class cmMakefile;
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class cmWindowsRegistry
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{
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public:
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enum class View
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{
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Both,
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Target,
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Host,
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Reg64_32,
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Reg32_64,
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Reg32,
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Reg64
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};
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// Registry supported types
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enum class ValueType : std::uint8_t
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{
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Reg_SZ,
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Reg_EXPAND_SZ,
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Reg_MULTI_SZ,
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Reg_DWORD,
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Reg_QWORD
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};
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using ValueTypeSet = cm::enum_set<ValueType>;
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// All types as defined by enum ValueType
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static const ValueTypeSet AllTypes;
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// same as AllTYpes but without type REG_MULTI_SZ
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static const ValueTypeSet SimpleTypes;
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cmWindowsRegistry(cmMakefile&,
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const ValueTypeSet& supportedTypes = AllTypes);
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// Helper routine to convert string to enum value
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static cm::optional<View> ToView(cm::string_view name);
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// Helper routine to convert enum to string
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static cm::string_view FromView(View view);
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cm::optional<std::string> ReadValue(cm::string_view key,
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View view = View::Both,
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cm::string_view separator = "\0"_s)
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{
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return this->ReadValue(key, ""_s, view, separator);
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}
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cm::optional<std::string> ReadValue(cm::string_view key,
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cm::string_view name,
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View view = View::Both,
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cm::string_view separator = "\0"_s);
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cm::optional<std::vector<std::string>> GetValueNames(cm::string_view key,
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View view = View::Both);
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cm::optional<std::vector<std::string>> GetSubKeys(cm::string_view key,
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View view = View::Both);
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// Expand an expression which may contains multiple references
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// to registry keys.
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// Depending of the view specified, one or two expansions can be done.
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cm::optional<std::vector<std::string>> ExpandExpression(
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cm::string_view expression, View view, cm::string_view separator = "\0"_s);
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cm::string_view GetLastError() const;
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private:
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#if defined(_WIN32) && !defined(__CYGWIN__)
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std::vector<View> ComputeViews(View view);
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int TargetSize = 0;
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ValueTypeSet SupportedTypes = AllTypes;
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#endif
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std::string LastError;
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};
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