* @brief Class for reading and writing parameter values in INI files.
* @author Enar Vaikene
*
- * Copyright (c) 2011 Enar Vaikene
+ * Copyright (c) 2011-2019 Enar Vaikene
*
* This file is part of the eVaf C++ cross-platform application development framework.
*
#include "libcommon.h"
+#include <QString>
+#include <QVariant>
+#include <QIODevice>
+#include <QScopedPointer>
+
namespace eVaf {
namespace Common {
namespace Internal {
/**
* Class for reading and writing parameter values in INI files.
*
- * The IniFile class provides access to parameter values in a standard INI file. Every parameter value is
- * identified by a section/key name pair. Key names can be prefixed with 'windows:' or 'linux:' if the
- * parameter value is specific for the given platform. This allows entering platform-specific parameter
- * values to the INI file. INI files can contain comment lines that start with ';' or '#'. Comments are
+ * The IniFile class provides access to parameter values in a standard INI file.
+ * Every parameter value is identified by a section/key name pair. Key names can be prefixed with
+ * 'windows:' or 'linux:' if the parameter value is specific for the given platform.
+ * This allows entering platform-specific parameter values to the INI file.
+ *
+ * INI files can contain comment lines that start with ';' or '#'. Comments are
* preserved when new values are written to the INI file.
*
+ * This is a sample INI %file:
+ * @code
+ * [main]
+ * # The full name of this parameter is 'main/name'
+ * name = "My Application"
+ *
+ * # 4-byte binary version number 1.0.7.10 with the name 'main/version'
+ * version = �

+ *
+ * [extensions/about]
+ * # The full name of this parameter is 'extensions/about/module'
+ * module = libabout.so
+ * @endcode
+ *
* Values in INI files are stored as strings and the IniFile class expects them to use specific formats if
* the returned value is supposed to be of a different data type. The following list shows the expected format
* of different data types:
*
* @li Bool - '0', 'false', 'off', 'no' are equal to false and '1', 'true', 'on', 'yes' are equal to true;
- * @li Char - a single character or an ASCII code as '\0NNN' or '\0xNN';
+ * @li Char - a single character or an UTF-16 code as '\0NNNNNN' (oct) or '\0xNNNN' (hex);
* @li Date - date string in the ISO 8601 format YYYY-MM-DD;
* @li DateTime - date and time string in the ISO 8601 format YYY-MM-DDTHH:MM:SSTZD;
* @li Double - the decimal point is always '.' regardless of the locale;
* @li Int - only base 10 (decimal) is allowed;
* @li Time - 24h time string in the format HH:MM:SS
* @li UInt - base 16 (hex) if the string is prefixed with '0x'; base 8 if the string starts with '0'; otherwise
- * the value is expected to be base 10 (decimal).
+ * the value is expected to be base 10 (decimal);
+ * @li ByteArray - non-printable bytes and special characters are encoded as numeric character or character entity references;
+ * @li String - non-printable and special characters are encoded as numeric character or character entity references.
+ *
+ * Strings and Byte array values can be enclosed in single or double quotes. The IniFile class does this automatically when
+ * saving String or Byte array values with leading or trailing spaces. Quotes are removed from the parameter value prior
+ * returning the value to the application. Use character entity references """ and "'" if quotes should be part of
+ * the parameter value.
*/
class COMMON_EXPORT IniFile
{
* The isValid() method returns true if the INI file is can be used. Use this
* method after creating the object to verify that opening the INI file in the specified
* mode succeeded.
- *
- * If the object is not valid, then:
- * @li Writing to the INI file always fails; the internal cache is still updated and reading the parameter returns
- * the new value;
- * @li Reading from the INI file returns the cached value or the default value if no values with this name are written.
*/
bool isValid() const;
* @return The value from the INI file or an invalid QVariant if failed
*
* The getValue() method reads a parameter value from the INI file. Parameters are identified by a section and key name pair
- * in the format '<section>/<key>'. For example, if the section is called 'general' and the key is called 'log_level',
+ * in the format '\<section\>/\<key\>'. For example, if the section is called 'general' and the key is called 'log_level',
* then the name of the parameter should be given as 'general/log_level'. Parameter names are case insensitive.
*
* If the parameter cannot be read because it is not found in the INI file or the INI file object is invalid, returns the
* @li If the value in the INI file is 'abc' and the default value an integer value, then validation
* fails and the method returns the default value;
* @li If the default value is a boolean value, then the method accepts '1', 'true', 'on' and 'yes' as valid values.
+ *
+ * @sa eVaf::Common::toVariant()
*/
- QVariant getValue(QString const & paramName, QVariant const & defaultValue = QVariant::Invalid);
+ QVariant getValue(QByteArray const & paramName, QVariant const & defaultValue = QVariant::Invalid);
/**
* Writes a value to the INI file.
* @return True if succeeded and false if not
*
* The setValue() method writes a parameter value to the INI file. Parameters are identified by a section and key name pair
- * in the format '<section>/<key>'. For example, if the section is called 'general' and the key is called 'log_level',
+ * in the format '\<section\>/\<key\>'. For example, if the section is called 'general' and the key is called 'log_level',
* the the name of the parameter should be given as 'general/log_level'. Parameter names are case insensitive.
*
* The method returns true if the parameter value was written into the INI file and false if not. Use the errorString() method
* to get a human-readable error string if writing to the INI file fails.
- *
- * Writing to an invalid INI file always fails, but the value is still stored into the internal cache. Readin the same parameter
- * value returns the new value even if it was actually not stored into the INI file.
*/
- bool setValue(QString const & paramName, QVariant const & value);
+ bool setValue(QByteArray const & paramName, QVariant const & value);
private:
/// Pointer to the internal implementation of the class
- Internal::IniFileImpl * d;
+ QScopedPointer<Internal::IniFileImpl> d;
};
} // namespace eVaf::Common
} // namespace eVaf
-#endif // INIFILE_H
+#endif // inifile.h
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