History

Simon Binder 40a4ebdadf Started to integrate the sqlparser into moor generator		2019-06-28 23:41:27 +02:00
..
example	Extract sql parser to yet another subpackage	2019-06-15 23:01:10 +02:00
lib	Started to integrate the sqlparser into moor generator	2019-06-28 23:41:27 +02:00
test	Started to integrate the sqlparser into moor generator	2019-06-28 23:41:27 +02:00
.gitignore	Extract sql parser to yet another subpackage	2019-06-15 23:01:10 +02:00
CHANGELOG.md	Extract sql parser to yet another subpackage	2019-06-15 23:01:10 +02:00
LICENSE	Extract sql parser to yet another subpackage	2019-06-15 23:01:10 +02:00
README.md	Beware of the mightily inefficient four-pass parser	2019-06-26 23:07:30 +02:00
analysis_options.yaml	Extract sql parser to yet another subpackage	2019-06-15 23:01:10 +02:00
pubspec.yaml	Test select statement parsing	2019-06-23 10:35:25 +02:00

README.md

sqlparser

An sql parser and static analyzer, written in pure Dart. Currently in development.

Using this library

import 'package:sqlparser/sqlparser.dart';

final engine = SqlEngine();
final stmt = engine.parse('''
SELECT f.* FROM frameworks f
  INNER JOIN uses_language ul ON ul.framework = f.id
  INNER JOIN languages l ON l.id = ul.language
WHERE l.name = 'Dart'
ORDER BY f.name ASC, f.popularity DESC
LIMIT 5 OFFSET 5 * 3
  ''');
// ???
profit();

Features

Not all features are available yet, put parsing select statements (even complex ones!) and performing analysis on them works!

AST Parsing

Can parse the abstract syntax tree of any sqlite statement with SqlEngine.parse.

Static analysis

Given information about all tables and a sql statement, this library can:

determine which result rows a query is going to have
Determine the static type of variables included in the query
issue some basic warnings on queries that are syntactically valid but won't run