import Foundation
let pattern = #"[\]\}][\"'`].*::.*jsonb.*[<>@]+.*[\]\}][\"'`].*::.*jsonb|[\"'`][\[\{].*[\]\}][\"'`].*[\-<>]+.*[\"'`]\$.*[\"'`]|json_extract.*\(.*\)"#
let regex = try! NSRegularExpression(pattern: pattern, options: .anchorsMatchLines)
let testString = ###"""
##! PostgreSQL: '{"b":2}'::jsonb <@ '{"a":1, "b":2}'::jsonb
##! PostgreSQL: '{"b":2}'::jsonb @> '{"a":1, "b":2}'::jsonb
##! PostgreSQL: '{"b":2}'::jsonb @ '{"a":1, "b":2}'::jsonb
##! PostgreSQL: '{"b":2}'::jsonb < '{"a":1, "b":2}'::jsonb
##! PostgreSQL: '{"b":2}'::jsonb > '{"a":1, "b":2}'::jsonb
##! SQLite: '{"a":2,"c":[4,5,{"f":7}]}' -> '$.c[2].f' = 7
##! SQLite: '{"a":2,"c":[4,5,{"f":7}]}' <- '$.c[2].f' = 7
##! SQLite: '{"a":2,"c":[4,5,{"f":7}]}' < '$.c[2].f' = 7
##! SQLite: '{"a":2,"c":[4,5,{"f":7}]}' > '$.c[2].f' = 7
##! MySQL: json_extract('{"id": 14, "name": "Aztalan"}', '$.name') = 'Aztalan'
"""###
let stringRange = NSRange(location: 0, length: testString.utf16.count)
let matches = regex.matches(in: testString, range: stringRange)
var result: [[String]] = []
for match in matches {
var groups: [String] = []
for rangeIndex in 1 ..< match.numberOfRanges {
let nsRange = match.range(at: rangeIndex)
guard !NSEqualRanges(nsRange, NSMakeRange(NSNotFound, 0)) else { continue }
let string = (testString as NSString).substring(with: nsRange)
groups.append(string)
}
if !groups.isEmpty {
result.append(groups)
}
}
print(result)
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 Swift 5.2, please visit: https://developer.apple.com/documentation/foundation/nsregularexpression