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#
# Copyright (C) 2009-2020 the sqlparse authors and contributors
# <see AUTHORS file>
#
# This module is part of python-sqlparse and is released under
# the BSD License: https://opensource.org/licenses/BSD-3-Clause
"""Parse SQL statements."""
# Setup namespace
from sqlparse import sql
from sqlparse import cli
from sqlparse import engine
from sqlparse import tokens
from sqlparse import filters
from sqlparse import formatter
__version__ = '0.4.5.dev0'
__all__ = ['engine', 'filters', 'formatter', 'sql', 'tokens', 'cli']
def parse(sql, encoding=None):
"""Parse sql and return a list of statements.
:param sql: A string containing one or more SQL statements.
:param encoding: The encoding of the statement (optional).
:returns: A tuple of :class:`~sqlparse.sql.Statement` instances.
"""
return tuple(parsestream(sql, encoding))
def parsestream(stream, encoding=None):
"""Parses sql statements from file-like object.
:param stream: A file-like object.
:param encoding: The encoding of the stream contents (optional).
:returns: A generator of :class:`~sqlparse.sql.Statement` instances.
"""
stack = engine.FilterStack()
stack.enable_grouping()
return stack.run(stream, encoding)
def format(sql, encoding=None, **options):
"""Format *sql* according to *options*.
Available options are documented in :ref:`formatting`.
In addition to the formatting options this function accepts the
keyword "encoding" which determines the encoding of the statement.
:returns: The formatted SQL statement as string.
"""
stack = engine.FilterStack()
options = formatter.validate_options(options)
stack = formatter.build_filter_stack(stack, options)
stack.postprocess.append(filters.SerializerUnicode())
return ''.join(stack.run(sql, encoding))
def split(sql, encoding=None):
"""Split *sql* into single statements.
:param sql: A string containing one or more SQL statements.
:param encoding: The encoding of the statement (optional).
:returns: A list of strings.
"""
stack = engine.FilterStack()
return [str(stmt).strip() for stmt in stack.run(sql, encoding)]
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