import Foundation
let pattern = #"CREATE\s+TABLE[^.]*\.(\S*)\s*\((.*?)PRIMARY KEY \(?\(([^)]*)\)\)?\s*\)\s*(?:WITH CLUSTERING ORDER BY \(([^)]*)\))?"#
let regex = try! NSRegularExpression(pattern: pattern, options: .dotMatchesLineSeparators)
let testString = #"""
CREATE TABLE abcdeg.table_v1 (
"id" text,
"obj" text,
"version" bigint,
output text,
server text,
PRIMARY KEY ("id", "obj", "version")
) WITH CLUSTERING ORDER BY ("id" ASC, "version" DESC)
AND bloom_filter_fp_chance = 0.1
AND comment = ''
AND default_time_to_live = 0
AND gc_grace_seconds = 864000
AND max_index_interval = 2048
AND min_index_interval = 128
AND read_repair_chance = 0.0
AND speculative_retry = '99.0PERCENTILE';
CREATE TABLE abcdeg.result_v1 (
"id" text,
"obj" text,
time int,
PRIMARY KEY (("id", "obj"))
) WITH bloom_filter_fp_chance = 0.1
AND comment = ''
AND default_time_to_live = 0
AND gc_grace_seconds = 864000
AND max_index_interval = 2048
AND speculative_retry = '99.0PERCENTILE';
"""#
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