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godot-docs/classes/class_configfile.rst
2020-01-21 09:28:25 +01:00

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.. Generated automatically by doc/tools/makerst.py in Godot's source tree.
.. DO NOT EDIT THIS FILE, but the ConfigFile.xml source instead.
.. The source is found in doc/classes or modules/<name>/doc_classes.
.. _class_ConfigFile:
ConfigFile
==========
**Inherits:** :ref:`Reference<class_Reference>` **<** :ref:`Object<class_Object>`
**Category:** Core
Brief Description
-----------------
Helper class to handle INI-style files.
Methods
-------
+-----------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| void | :ref:`erase_section<class_ConfigFile_method_erase_section>` **(** :ref:`String<class_String>` section **)** |
+-----------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`PoolStringArray<class_PoolStringArray>` | :ref:`get_section_keys<class_ConfigFile_method_get_section_keys>` **(** :ref:`String<class_String>` section **)** const |
+-----------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`PoolStringArray<class_PoolStringArray>` | :ref:`get_sections<class_ConfigFile_method_get_sections>` **(** **)** const |
+-----------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`Variant<class_Variant>` | :ref:`get_value<class_ConfigFile_method_get_value>` **(** :ref:`String<class_String>` section, :ref:`String<class_String>` key, :ref:`Variant<class_Variant>` default=null **)** const |
+-----------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`bool<class_bool>` | :ref:`has_section<class_ConfigFile_method_has_section>` **(** :ref:`String<class_String>` section **)** const |
+-----------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`bool<class_bool>` | :ref:`has_section_key<class_ConfigFile_method_has_section_key>` **(** :ref:`String<class_String>` section, :ref:`String<class_String>` key **)** const |
+-----------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`Error<enum_@GlobalScope_Error>` | :ref:`load<class_ConfigFile_method_load>` **(** :ref:`String<class_String>` path **)** |
+-----------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`Error<enum_@GlobalScope_Error>` | :ref:`save<class_ConfigFile_method_save>` **(** :ref:`String<class_String>` path **)** |
+-----------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| void | :ref:`set_value<class_ConfigFile_method_set_value>` **(** :ref:`String<class_String>` section, :ref:`String<class_String>` key, :ref:`Variant<class_Variant>` value **)** |
+-----------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
Description
-----------
This helper class can be used to store :ref:`Variant<class_Variant>` values on the filesystem using INI-style formatting. The stored values are identified by a section and a key:
::
[section]
some_key=42
string_example="Hello World!"
a_vector=Vector3( 1, 0, 2 )
The stored data can be saved to or parsed from a file, though ConfigFile objects can also be used directly without accessing the filesystem.
The following example shows how to parse an INI-style file from the system, read its contents and store new values in it:
::
var config = ConfigFile.new()
var err = config.load("user://settings.cfg")
if err == OK: # if not, something went wrong with the file loading
# Look for the display/width pair, and default to 1024 if missing
var screen_width = config.get_value("display", "width", 1024)
# Store a variable if and only if it hasn't been defined yet
if not config.has_section_key("audio", "mute"):
config.set_value("audio", "mute", false)
# Save the changes by overwriting the previous file
config.save("user://settings.cfg")
Keep in mind that section and property names can't contain spaces. Anything after a space will be ignored on save and on load.
Method Descriptions
-------------------
.. _class_ConfigFile_method_erase_section:
- void **erase_section** **(** :ref:`String<class_String>` section **)**
Deletes the specified section along with all the key-value pairs inside.
----
.. _class_ConfigFile_method_get_section_keys:
- :ref:`PoolStringArray<class_PoolStringArray>` **get_section_keys** **(** :ref:`String<class_String>` section **)** const
Returns an array of all defined key identifiers in the specified section.
----
.. _class_ConfigFile_method_get_sections:
- :ref:`PoolStringArray<class_PoolStringArray>` **get_sections** **(** **)** const
Returns an array of all defined section identifiers.
----
.. _class_ConfigFile_method_get_value:
- :ref:`Variant<class_Variant>` **get_value** **(** :ref:`String<class_String>` section, :ref:`String<class_String>` key, :ref:`Variant<class_Variant>` default=null **)** const
Returns the current value for the specified section and key. If the section and/or the key do not exist, the method returns the value of the optional ``default`` argument, or ``null`` if it is omitted.
----
.. _class_ConfigFile_method_has_section:
- :ref:`bool<class_bool>` **has_section** **(** :ref:`String<class_String>` section **)** const
Returns ``true`` if the specified section exists.
----
.. _class_ConfigFile_method_has_section_key:
- :ref:`bool<class_bool>` **has_section_key** **(** :ref:`String<class_String>` section, :ref:`String<class_String>` key **)** const
Returns ``true`` if the specified section-key pair exists.
----
.. _class_ConfigFile_method_load:
- :ref:`Error<enum_@GlobalScope_Error>` **load** **(** :ref:`String<class_String>` path **)**
Loads the config file specified as a parameter. The file's contents are parsed and loaded in the ConfigFile object which the method was called on. Returns one of the :ref:`@GlobalScope.OK<class_@GlobalScope_constant_OK>`, :ref:`@GlobalScope.FAILED<class_@GlobalScope_constant_FAILED>` or ``ERR_*`` constants listed in :ref:`@GlobalScope<class_@GlobalScope>`. If the load was successful, the return value is :ref:`@GlobalScope.OK<class_@GlobalScope_constant_OK>`.
----
.. _class_ConfigFile_method_save:
- :ref:`Error<enum_@GlobalScope_Error>` **save** **(** :ref:`String<class_String>` path **)**
Saves the contents of the ConfigFile object to the file specified as a parameter. The output file uses an INI-style structure. Returns one of the :ref:`@GlobalScope.OK<class_@GlobalScope_constant_OK>`, :ref:`@GlobalScope.FAILED<class_@GlobalScope_constant_FAILED>` or ``ERR_*`` constants listed in :ref:`@GlobalScope<class_@GlobalScope>`. If the load was successful, the return value is :ref:`@GlobalScope.OK<class_@GlobalScope_constant_OK>`.
----
.. _class_ConfigFile_method_set_value:
- void **set_value** **(** :ref:`String<class_String>` section, :ref:`String<class_String>` key, :ref:`Variant<class_Variant>` value **)**
Assigns a value to the specified key of the specified section. If the section and/or the key do not exist, they are created. Passing a ``null`` value deletes the specified key if it exists, and deletes the section if it ends up empty once the key has been removed.