// include the latest version of the regex crate in your Cargo.toml
extern crate regex;
use regex::Regex;
fn main() {
let regex = Regex::new(r"\[.+?\](?![\.])").unwrap();
let string = "I am parsing some SQL statements and have found places where the SELECT statement may be:
SELECT [tblCustomer].[FirstName], [tblCustomer.LastName], [tblOrder].[Order_No]
and as you see the second column has a `.` inside the square brackets. This is acceptable in Access SQL but not SQL Server. I'm trying to build a RegEx to identify when there is a `.` inside square brackets and replace it with `].[`
I've tried: `\\[.+?\\](?![\\.])` which will get me a period inside square brackets but it doesn't stop searching when it finds the closing bracket.
I'm using ECMAScript to be compatible with VBA and I don't have concerns about nested brackets.
Another example:
SELECT IIf([tbl_ref_Service].[Root_Service] Is Null,[tbl_ref_Service].[Service],[tbl_ref_Service].[Root_Service]) AS Root_Service, tbl_POC_Assigned.POC_ID, [tbl_POC_Assigned.Hex_ID] & \"_\" & [tbl_Hex.Generic_ID] & \"_\" & [tbl_Lateral.Service_ID] & \"_\" & [tbl_Hex.ODD_Micap] & \"_Null\" AS Tool_Generic_Line, tbl_Hex.Building_ID AS Hex_Building_ID, tbl_POC.Lateral_ID, tbl_Generic_Service.Peak_Flow, [Diversity_Factor]*[Peak_Flow] AS Avg_Flow, tbl_POC_Assigned.Flow, tbl_POC_Assigned.Flow_Avg";
// result will be an iterator over tuples containing the start and end indices for each match in the string
let result = regex.captures_iter(string);
for mat in result {
println!("{:?}", mat);
}
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Rust, please visit: https://docs.rs/regex/latest/regex/