import Foundation
let pattern = ##"""
^([MF]\/\d{2})\/ (?#Gender/Age, required.)
( (?#Height, required.)
(?:\d{1}[\'\’]? (?#Optional \'\’ unit markings.)
(?: (?#Groups starting with ?: are non-capturing.)
(?:
[02-9]|1[01]?
)(?:[\"”]|\'\')? (?#Optional "\'\' unit markings.)
)?
)|
\d{1,3}cm|
[12]m(?:\d{1,2}(?:cm)?)? (?#Optional cm unit marking.)
)\ ?
(?#Weight before to after, required. ?P<weight> is a named capturing group, associated with match sub-pattern ?P=weight. It forces the user to be consistent, either using only lbs, or only kg for the entire match, also used in Lifting Stats section.)
\[(\d{2,3}\ ?(?P<weight>lbs|kg)\ to\ \d{2,3}\ ?(?P=weight))\]\ ? (?# Optional space before lbs|kg. *Changed to require space before and after "to".)
\( (?#Time Period, required)
(
(?:\d{1,2}\ ?years?)| (?#Optional space before years, optional s in years.)
(?:
(?:[2-9]|1[01]?)\ ?(?:month|week)s? (?#Optional space before months|weeks, optional s at end.)
)|
(?:\d{1,2}\ ?years?[;,]?\ ? (?#Optional space before years, optional s in years. Optional space after.)
(?:[02-9]|1[01]?)\ ?months?)| (?#Optional space before monthss, optional s in months.)
)
\)\ ?
(?:\ ?\+\ ?\( (?#Lifting Stats, optional. Optional space before/after + .)
((?:[DSBO]:\ ?(?:\d{2,3})\ ?(?P=weight)(?:[;,]\ ?)?){1,4}) (?# Optional space after [DSBO]: . Optional space before lbs|kg. Optional space after ;, delimiter. Changed from 4 repeated statements to one recursive group.)
\)(?<=[sg]\)))? (?# ?<= is a Positive Lookbehind. It requires the ; or , delimiter between stats, but prevents the delimiter after the last stat.)
(\ .*)? (?#Comments, optional. *Changed: Required space before comments section.)
$|^\[Meta\].*
"""##
let regex = try! NSRegularExpression(pattern: pattern, options: [.anchorsMatchLines, .allowCommentsAndWhitespace])
let testString = #"M/24/5'10" [175lbs to 150lbs] (1 year)"#
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