reefdb 0.1.0

ReefDB is a minimalistic, in-memory and on-disk database management system written in Rust, implementing basic SQL query capabilities and full-text search.
Documentation 
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use crate::sql::column_def::ColumnDef;
use nom::{
    bytes::complete::tag,
    character::complete::{alphanumeric1, multispace0, multispace1},
    multi::separated_list0,
    sequence::{delimited, terminated},
    IResult,
};

use super::Statement;

#[derive(Debug, PartialEq)]
pub enum CreateStatement {
    Table(String, Vec<ColumnDef>),
}

impl CreateStatement {
    pub fn parse(input: &str) -> IResult<&str, Statement> {
        let (input, _) = tag("CREATE TABLE")(input)?;
        let (input, _) = multispace1(input)?;
        let (input, table_name) = alphanumeric1(input)?;
        let (input, _) = multispace1(input)?;
        let (input, columns) = delimited(
            tag("("),
            separated_list0(terminated(tag(","), multispace0), ColumnDef::parse),
            tag(")"),
        )(input)?;

        Ok((
            input,
            Statement::Create(CreateStatement::Table(table_name.to_string(), columns)),
        ))
    }
}

#[cfg(test)]
mod tests {
    use crate::sql::{data_type::DataType, statements::Statement};

    //create full text search table
    #[test]
    fn parse_data_type_fts_text(){
        use super::CreateStatement;
        use crate::sql::column_def::ColumnDef;

        assert_eq!(
            CreateStatement::parse("CREATE TABLE users (id INTEGER, name TEXT, fts FTS_TEXT)"),
            Ok((
                "",
                Statement::Create(CreateStatement::Table(
                    "users".to_string(),
                    vec![
                        ColumnDef {
                            name: "id".to_string(),
                            data_type: DataType::Integer,

                            constraints: vec![],
                        },
                        ColumnDef {
                            name: "name".to_string(),
                            data_type: DataType::Text,
                            constraints: vec![],
                        },
                        ColumnDef {
                            name: "fts".to_string(),
                            data_type: DataType::FTSText,
                            constraints: vec![],
                        },
                    ]
                ))
            ))
        );
    }

    #[test]
    fn parse_test() {
        use super::CreateStatement;
        use crate::sql::column_def::ColumnDef;

        assert_eq!(
            CreateStatement::parse("CREATE TABLE users (id INTEGER, name TEXT)"),
            Ok((
                "",
                Statement::Create(CreateStatement::Table(
                    "users".to_string(),
                    vec![
                        ColumnDef {
                            name: "id".to_string(),
                            data_type: DataType::Integer,

                            constraints: vec![],
                        },
                        ColumnDef {
                            name: "name".to_string(),
                            data_type: DataType::Text,
                            constraints: vec![],
                        },
                    ]
                ))
            ))
        );
    }
}