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73 lines
2.2 KiB
Python
73 lines
2.2 KiB
Python
# -*- coding: utf-8 -*-
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#
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# Copyright (C) 2009-2018 the sqlparse authors and contributors
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# <see AUTHORS file>
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#
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# This module is part of python-sqlparse and is released under
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# the BSD License: https://opensource.org/licenses/BSD-3-Clause
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"""Parse SQL statements."""
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# Setup namespace
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from sqlparse import sql
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from sqlparse import cli
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from sqlparse import engine
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from sqlparse import tokens
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from sqlparse import filters
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from sqlparse import formatter
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from sqlparse.compat import text_type
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__version__ = '0.3.1'
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__all__ = ['engine', 'filters', 'formatter', 'sql', 'tokens', 'cli']
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def parse(sql, encoding=None):
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"""Parse sql and return a list of statements.
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:param sql: A string containing one or more SQL statements.
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:param encoding: The encoding of the statement (optional).
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:returns: A tuple of :class:`~sqlparse.sql.Statement` instances.
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"""
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return tuple(parsestream(sql, encoding))
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def parsestream(stream, encoding=None):
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"""Parses sql statements from file-like object.
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:param stream: A file-like object.
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:param encoding: The encoding of the stream contents (optional).
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:returns: A generator of :class:`~sqlparse.sql.Statement` instances.
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"""
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stack = engine.FilterStack()
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stack.enable_grouping()
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return stack.run(stream, encoding)
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def format(sql, encoding=None, **options):
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"""Format *sql* according to *options*.
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Available options are documented in :ref:`formatting`.
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In addition to the formatting options this function accepts the
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keyword "encoding" which determines the encoding of the statement.
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:returns: The formatted SQL statement as string.
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"""
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stack = engine.FilterStack()
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options = formatter.validate_options(options)
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stack = formatter.build_filter_stack(stack, options)
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stack.postprocess.append(filters.SerializerUnicode())
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return u''.join(stack.run(sql, encoding))
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def split(sql, encoding=None):
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"""Split *sql* into single statements.
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:param sql: A string containing one or more SQL statements.
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:param encoding: The encoding of the statement (optional).
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:returns: A list of strings.
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"""
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stack = engine.FilterStack()
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return [text_type(stmt).strip() for stmt in stack.run(sql, encoding)]
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