linting

$ cat example.sql
>> select
>>    a + b as x
>>    , b+c as y
>> from
>>    test_table as t1
$ sqlint example.sql
>> example.sql (L3, 8): whitespace must be before binary operator: b+
>> example.sql (L3, 8): whitespace must be after binary operator: +c

formatting

With -f option, this linter show formatted SQL.

$ sqlint -f query/example.sql
>> select
>>    a + b as x
>>    , b + c as y
>> from
>>    test_table as t1

REPL

$ python
>>> from sqlint import parse, check, format
>>> sql = 'SELECT id From user_table  where user_table.age >10'
>>>
>>> parse(sql)
[[<Keyword: 'SELECT'>, <Whitespace: ' '>, <Identifier: 'id'>, <Whitespace: ' '>, <Keyword: 'From'>, <Whitespace: ' '>, <Identifier: 'user_table'>, <Whitespace: '  '>, <Keyword: 'where'>, <Whitespace: ' '>, <Identifier: 'user_table.age'>, <Whitespace: ' '>, <Operator: '>'>, <Identifier: '10'>]]
>>>
>>> check(sql)
['(L1, 1): reserved keywords must be lower case: SELECT -> select', '(L1, 11): reserved keywords must be lower case: From -> from', '(L1, 26): too many spaces', '(L1, 49): whitespace must be after binary operator: >10']
>>>
>>> format(sql)
>>> select
>>>     id
>>> from
>>>     user_table
>>> where
>>>     user_table.age > 10