95 lines
3.5 KiB
C
95 lines
3.5 KiB
C
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// Read an INI file into easy-to-access name/value pairs.
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// SPDX-License-Identifier: BSD-3-Clause
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// Copyright (C) 2009-2020, Ben Hoyt
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// inih and INIReader are released under the New BSD license (see LICENSE.txt).
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// Go to the project home page for more info:
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//
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// https://github.com/benhoyt/inih
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#ifndef INIREADER_H
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#define INIREADER_H
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#include <map>
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#include <string>
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// Visibility symbols, required for Windows DLLs
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#ifndef INI_API
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#if defined _WIN32 || defined __CYGWIN__
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# ifdef INI_SHARED_LIB
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# ifdef INI_SHARED_LIB_BUILDING
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# define INI_API __declspec(dllexport)
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# else
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# define INI_API __declspec(dllimport)
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# endif
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# else
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# define INI_API
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# endif
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#else
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# if defined(__GNUC__) && __GNUC__ >= 4
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# define INI_API __attribute__ ((visibility ("default")))
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# else
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# define INI_API
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# endif
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#endif
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#endif
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// Read an INI file into easy-to-access name/value pairs. (Note that I've gone
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// for simplicity here rather than speed, but it should be pretty decent.)
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class INIReader
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{
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public:
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// Construct INIReader and parse given filename. See ini.h for more info
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// about the parsing.
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INI_API explicit INIReader(const std::string& filename);
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// Construct INIReader and parse given buffer. See ini.h for more info
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// about the parsing.
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INI_API explicit INIReader(const char *buffer, size_t buffer_size);
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// Return the result of ini_parse(), i.e., 0 on success, line number of
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// first error on parse error, or -1 on file open error.
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INI_API int ParseError() const;
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// Get a string value from INI file, returning default_value if not found.
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INI_API std::string Get(const std::string& section, const std::string& name,
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const std::string& default_value) const;
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// Get a string value from INI file, returning default_value if not found,
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// empty, or contains only whitespace.
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INI_API std::string GetString(const std::string& section, const std::string& name,
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const std::string& default_value) const;
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// Get an integer (long) value from INI file, returning default_value if
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// not found or not a valid integer (decimal "1234", "-1234", or hex "0x4d2").
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INI_API long GetInteger(const std::string& section, const std::string& name, long default_value) const;
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// Get a real (floating point double) value from INI file, returning
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// default_value if not found or not a valid floating point value
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// according to strtod().
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INI_API double GetReal(const std::string& section, const std::string& name, double default_value) const;
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// Get a boolean value from INI file, returning default_value if not found or if
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// not a valid true/false value. Valid true values are "true", "yes", "on", "1",
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// and valid false values are "false", "no", "off", "0" (not case sensitive).
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INI_API bool GetBoolean(const std::string& section, const std::string& name, bool default_value) const;
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// Return true if the given section exists (section must contain at least
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// one name=value pair).
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INI_API bool HasSection(const std::string& section) const;
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// Return true if a value exists with the given section and field names.
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INI_API bool HasValue(const std::string& section, const std::string& name) const;
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private:
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int _error;
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std::map<std::string, std::string> _values;
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static std::string MakeKey(const std::string& section, const std::string& name);
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static int ValueHandler(void* user, const char* section, const char* name,
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const char* value);
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};
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#endif // INIREADER_H
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