CODEWITHSUNDEEP
regexswift2xcode7
bittu
bittu

Reputation: 713

Error after updating to xcode 7 : Cannot invoke initializer for type 'NSRegularExpression' with an argument list of type

Get following error after updating xcode: "Cannot invoke initializer for type 'NSRegularExpression' with an argument list of type '(pattern: String, options: NilLiteralConvertible, error: NilLiteralConvertible)'"

Following is code which cause error:

        func applyStylesToRange(searchRange: NSRange) {
    let normalAttrs = [NSFontAttributeName : UIFont.preferredFontForTextStyle(UIFontTextStyleBody)]
    // iterate over each replacement
    for (pattern, attributes) in replacements {
        let regex = NSRegularExpression(pattern: pattern, options: nil, error: nil)!
        regex.enumerateMatchesInString(backingStore.string, options: nil, range: searchRange) {
            match, flags, stop in
            // apply the style
            let matchRange = match.rangeAtIndex(1)
            self.addAttributes(attributes, range: matchRange)

            // reset the style to the original
            let maxRange = matchRange.location + matchRange.length
            if maxRange + 1 < self.length {
                self.addAttributes(normalAttrs, range: NSMakeRange(maxRange, 1))
            }
        }
    }

error is at this line:- let regex = NSRegularExpression(pattern: pattern, options: nil, error: nil)! please suggest me how to resolve it.

Upvotes: 0

Views: 576

Answers (2)

Arsen
Arsen

Reputation: 10951

Check out a new initialiser

public init(pattern: String, options: NSRegularExpressionOptions) throws

It means now you must pass an options argument and be ready to catch an error. Example:

do {
    let regex = try NSRegularExpression(pattern: "pattern", options: .CaseInsensitive)
} catch {
    print(error)
}

Upvotes: 0

joern
joern

Reputation: 27620

The initalizer is now throwable and needs an option:

do {
    let regex = try NSRegularExpression(pattern: "YouPattern", options: NSRegularExpressionOptions.CaseInsensitive)
} catch {
    print(error)
}

Upvotes: 0

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