import Foundation
let pattern = ##"""
# Section header
^ [ \t]* \[ [ \t]* \w+ [ \t]* \] [ \t]* (?:\r?\n)+
# Section items
(?:
^
(?:
# key = value
[ \t]* [^\r\n=]+ [ \t]* = [ \t]* [^\r\n]* [ \t]*
|
# comment line
[ \t]* \# [^\r\n]*
|
# blank
[ \t]*
)
(?: \r?\n | $ )
) *
"""##
let regex = try! NSRegularExpression(pattern: pattern, options: [.anchorsMatchLines, .caseInsensitive, .allowCommentsAndWhitespace])
let testString = ##"""
[ keybinds ]
# comment
bksp = reload
# comment
space = jump # not comment
[settings ]
resolution = 640 x 480
max_framerate = 24
[character]
# This is a comment. This section is empty.
[weapons]
[server]
login = hexology
password = my password # is not a comment
"""##
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