import Foundation
let pattern = #"(?:\w+\W+){0,18}(\d{1,2}(\.|\/|-)\d{1,2}(\.|\/|-)\d{2,4})"#
let regex = try! NSRegularExpression(pattern: pattern, options: [.anchorsMatchLines, .caseInsensitive])
let testString = #"""
"
BIRADS: 0, Incomplete - need prior mammograms for comparison
A breast health history was obtained and a risk assessment
analysis of the patient's lifetime risk of breast malignancy was
completed. These models indicate a lifetime risk of breast
malignancy as follows:
Tyrer-Cuzick 10-year: 8.6 %..........[average woman <5%]
Tyrer-Cuzick Lifetime: 21.4 %..........[average woman
<12%]
Myriad Table: 2.6 %..........[average woman
<5%]
GAIL 5-year: 2.9 %..........[average
woman <1.67%]
NCI Lifetime: 15.1 %..........[average
woman <10%]
Addendum:
Date Addendum Dictated: 7/19/2019
BIRADS: 2, benign findings
Recommend:
1: Routine screening mammogram in 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