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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
from sqlparse import tokens as T
class _CaseFilter:
ttype = None
def __init__(self, case=None):
case = case or 'upper'
self.convert = getattr(str, case)
def process(self, stream):
for ttype, value in stream:
if ttype in self.ttype:
value = self.convert(value)
yield ttype, value
class KeywordCaseFilter(_CaseFilter):
ttype = T.Keyword
class IdentifierCaseFilter(_CaseFilter):
ttype = T.Name, T.String.Symbol
def process(self, stream):
for ttype, value in stream:
if ttype in self.ttype and value.strip()[0] != '"':
value = self.convert(value)
yield ttype, value
class TruncateStringFilter:
def __init__(self, width, char):
self.width = width
self.char = char
def process(self, stream):
for ttype, value in stream:
if ttype != T.Literal.String.Single:
yield ttype, value
continue
if value[:2] == "''":
inner = value[2:-2]
quote = "''"
else:
inner = value[1:-1]
quote = "'"
if len(inner) > self.width:
value = ''.join((quote, inner[:self.width], self.char, quote))
yield ttype, value