sql_from_models_parser/dialect/
sqlite.rs

1// Licensed under the Apache License, Version 2.0 (the "License");
2// you may not use this file except in compliance with the License.
3// You may obtain a copy of the License at
4//
5// http://www.apache.org/licenses/LICENSE-2.0
6//
7// Unless required by applicable law or agreed to in writing, software
8// distributed under the License is distributed on an "AS IS" BASIS,
9// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
10// See the License for the specific language governing permissions and
11// limitations under the License.
12
13use crate::dialect::Dialect;
14
15#[derive(Debug)]
16pub struct SQLiteDialect {}
17
18impl Dialect for SQLiteDialect {
19    // see https://www.sqlite.org/lang_keywords.html
20    // parse `...`, [...] and "..." as identifier
21    // TODO: support depending on the context tread '...' as identifier too.
22    fn is_delimited_identifier_start(&self, ch: char) -> bool {
23        ch == '`' || ch == '"' || ch == '['
24    }
25
26    fn is_identifier_start(&self, ch: char) -> bool {
27        // See https://www.sqlite.org/draft/tokenreq.html
28        ('a'..='z').contains(&ch)
29            || ('A'..='Z').contains(&ch)
30            || ch == '_'
31            || ch == '$'
32            || ('\u{007f}'..='\u{ffff}').contains(&ch)
33    }
34
35    fn is_identifier_part(&self, ch: char) -> bool {
36        self.is_identifier_start(ch) || ('0'..='9').contains(&ch)
37    }
38}
sql_from_models_parser/dialect/sqlite.rs

sql_from_models_parser/dialect/
sqlite.rs
