import Foundation
let pattern = #"\w+-gradient\(.*?\)\)|\w+-gradient\(.*?\)"#
let regex = try! NSRegularExpression(pattern: pattern, options: .anchorsMatchLines)
let testString = ##"""
Only Match CSS gradients ignoring everything else.
EXAMPLES
2 and 3+ colors any type (4 matches): \w+-gradient\(.*?\)\)|\w+-gradient\(.*?\)
3+ colors linear (1 match): linear-gradient\(.*?\)\)
2 colors linear (4 matches): linear-gradient\(.*?\)
2 colors any type (4 matches): \w+-gradient\(.*?\)
---
linear-gradient(148deg, #c2fd88 24%, #89fc80 100%); //green
linear-gradient(148deg, #fff 24%, #000 100%); //gray
`background-image: linear-gradient(to right, rgb(236, 72, 153), rgb(239, 68, 68), rgb(234, 179, 8));`
$highlight-rainbow: conic-gradient(from 195.94deg at 50% 50%, #FF1B71 -28.98deg, #E0201A 0.41deg, #EE3F16 27.93deg, #FF6128 54.73deg, #FDA206 88.8deg, #FFED00 117.65deg, #DFF051 145.77deg, #17AB70 175.77deg, #1A8F9C 207.65deg, #005AFF 239.36deg, #5C4ECE 274.87deg, #582C86 304.33deg, #FF1B71 331.02deg, #E0201A 360.41deg);
"""##
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