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1#
2# Copyright (C) 2009-2020 the sqlparse authors and contributors
3# <see AUTHORS file>
4#
5# This module is part of python-sqlparse and is released under
6# the BSD License: https://opensource.org/licenses/BSD-3-Clause
8import re
10from sqlparse import sql, tokens as T
13# FIXME: Doesn't work
14class RightMarginFilter:
15 keep_together = (
16 # sql.TypeCast, sql.Identifier, sql.Alias,
17 )
19 def __init__(self, width=79):
20 self.width = width
21 self.line = ''
23 def _process(self, group, stream):
24 for token in stream:
25 if token.is_whitespace and '\n' in token.value:
26 if token.value.endswith('\n'):
27 self.line = ''
28 else:
29 self.line = token.value.splitlines()[-1]
30 elif token.is_group and type(token) not in self.keep_together:
31 token.tokens = self._process(token, token.tokens)
32 else:
33 val = str(token)
34 if len(self.line) + len(val) > self.width:
35 match = re.search(r'^ +', self.line)
36 if match is not None:
37 indent = match.group()
38 else:
39 indent = ''
40 yield sql.Token(T.Whitespace, f'\n{indent}')
41 self.line = indent
42 self.line += val
43 yield token
45 def process(self, group):
46 # return
47 # group.tokens = self._process(group, group.tokens)
48 raise NotImplementedError