File: //var/opt/nydus/ops/mysql/connector/aio/__pycache__/charsets.cpython-39.pyc
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Ze� ZdS )z5This module contains the MySQL Server Character Sets.�Charset�charsets� )� defaultdict)� dataclass)� DefaultDict�Dict�Optional�Sequence�Tuple� )�ProgrammingErrorc @ s2 e Zd ZU dZeed< eed< eed< eed< dS )r z'Dataclass representing a character set.�
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e ed�dd�Z e e ed�dd�Z dS )�Charsetsa� MySQL supported character sets and collations class.
This class holds the list of character sets with their collations supported by
MySQL, making available methods to get character sets by name, collation, or ID.
It uses a sparse matrix or tree-like representation using a dict in a dict to hold
the character set name and collations combinations.
The list is hardcoded, so we avoid a database query when getting the name of the
used character set or collation.
The call of ``charsets.set_mysql_major_version()`` should be done before using any
of the retrieval methods.
Usage:
>>> from mysql.connector.aio.charsets import charsets
>>> charsets.set_mysql_major_version(8)
>>> charsets.get_by_name("utf-8")
Charset(charset_id=255,
name='utf8mb4',
collation='utf8mb4_0900_ai_ci',
is_default=True)
N)�returnc C s i | _ i | _tt�| _d | _d S )N)�_charset_id_store�_collation_storer �dict� _name_store�_mysql_major_version)�selfr r r �__init__I s
zCharsets.__init__)�versionr c C s� || _ | j�� | j�� | j�� d}|dkr6t}n|dkrDt}ntd��|D ]<\}}}}t||||�}|| j|< || j|< || j| |< qPdS )z�Set the MySQL major version.
Sets what tuple should be used based on the MySQL major version to store the
list of character sets and collations.
Args:
version: The MySQL major version (i.e. 8 or 5)
N� � zInvalid MySQL major version) r! r �clearr r �MYSQL_8_CHARSETS�MYSQL_5_CHARSETSr r )r" r$ Zcharsets_tupler
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