import Foundation
let pattern = ##"# Time:\s(?<timestamp>.*)\n#.*Id:\s(?<id>.*)\n#\sQuery_time:\s(?<duration>[\d.]*)\s.*time:\s(?<lock_time>[\d.]*)\s.*_sent:\s(?<returned>\d*)\s.*_examined:\s(?<searched>\d*)\n(?<sql>[\s\S]*)"##
let regex = try! NSRegularExpression(pattern: pattern, options: .anchorsMatchLines)
let testString = ##"""
# Time: 210607 16:27:16
# User@Host: doctime_db_usr[doctime_db_usr] @ [10.2.0.79] Id: 13021
# Query_time: 20.504504 Lock_time: 0.000233 Rows_sent: 52 Rows_examined: 13827347
SET timestamp=1623083236;
SELECT
substring( substring_index( uri, '/', -1 ) , 1, LENGTH(substring_index( uri, '/', -1 )) - 38 ) AS uri,
namespace,
method,
count(*) AS hits
FROM
user_hits
WHERE
namespace = 'hospitals' AND
controller = 'queue' AND
method = 'file'
GROUP BY
substring( substring_index( uri, '/', -1 ) , 1, LENGTH(substring_index( uri, '/', -1 )) - 38 )
UNION
SELECT
uri,
namespace,
method,
count(*) AS hits
FROM
user_hits
WHERE
uri LIKE '%export%'
GROUP BY
method
ORDER BY hits DESC;
"""##
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