import Foundation
let pattern = #"(?:\b\w++::\w++\s*+\(|\G(?<!^))\s*+(\w++)\s*+(?:\[[^]]*+]\s*+)?,"#
let regex = try! NSRegularExpression(pattern: pattern, options: .anchorsMatchLines)
let testString = #"""
Not even sure how to attack this Regex Need (Multiline text with extraction of library names)
Sample Text
box::use(
DBI[dbListTables, dbExecute],
Yessir[this_one, that one,
and_this_one],
Maybesir[
func_one,
func_two,
],
Nosir,
database = logic/database,
log = logic/log,
options = logic/options,
utilities = logic/utilities,
)
I would like to have a regexp which matches the following from the above text:
DBI, Yessir, Maybesir, Nosir
Is there an easy way to approach this? I have been trying to use the regexp101 website to help me out here, but this one is sufficiently complex that I am a bit out of my depth. My current line is the following:
box::use\(\n(?:[\s]*([A-Za-z0-9]*)(?:[A-Za-z0-9\[\]_\ ,]*\n))
But, this is of course not getting it. I am not sure how to handle getting the multiple (unknown how many there really would be) libraries inside the box::use function.
It might be easier to extract the text from inside the use::box function first and then regexp that?
Edit: Forgot to add that I am using Python3
"""#
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