import Foundation
let pattern = ##"""
(?:
#start by finding the initial position of the table start, in order to store the match position for \G
TABLE\n\K|
#after we've found the table head, continue matching using this position. make sure we arent at the beginning of the string
\G(?<!^)
)
#capture the data we're interested in
(?:
#make sure there is no 'END' in the string
(?!END)
#match everything until the line ending
.
)*
#consume the newline at the end of the string
\n
"""##
let regex = try! NSRegularExpression(pattern: pattern)
let testString = #""#
let stringRange = NSRange(location: 0, length: testString.utf16.count)
let substitutionString = #"%\0"#
let result = regex.stringByReplacingMatches(in: testString, range: stringRange, withTemplate: substitutionString)
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