String

public extension String

  • Declaration

    Swift

    init(base58Encoding bytes: Data, alphabet: [UInt8] = Base58String.btcAlphabet)
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  • Returns a tuple breaking an EOSIO key formatted xxx_xx_xxxxxxx into components.

    Declaration

    Swift

    func eosioComponents() throws -> (prefix: String, version: String, body: String)
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  • Returns the domain (host) component of a url.

    Declaration

    Swift

    var urlDomain: String? { get }
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  • Slices the string starting from from and ending at the start of the to string.

    Declaration

    Swift

    func slice(from: String, to: String) -> String?

    Parameters

    from

    The begining of the slice.
    to

    The end of the slice.

    Return Value

    String?

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  • Returns all the strings that match a regular expression.

    Declaration

    Swift

    func matchingStrings(regex: String) -> [[String]]

    Parameters

    regex

    The string to use as a regular expression.

    Return Value

    An array of all the matched string or empty if no match were found.

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  • Is the string an absolute URL?

    Declaration

    Swift

    func isAbsoluteURL() -> Bool

    Return Value

    Returns true if the string is an absolute URL else returns false.

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  • Converts the string to a dictionary if it is convertible to a dictionary (i.e., it is a JSON string.) and returns the dictionary. Otherwise, returns nil.

    Declaration

    Swift

    var toJsonDictionary: [String : Any]? { get }
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  • Converts the string to a array if it is convertible to a array (i.e., it is a JSON string.) and returns the array. Otherwise, returns nil.

    Declaration

    Swift

    var toJsonArray: [Any]? { get }
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  • Converts the string to a dictionary if it is convertible to a dictionary (i.e., it is a JSON string).

    Throws

    A EosioError if the string can not be converted to a dictionary.

    Declaration

    Swift

    func jsonToDictionary() throws -> [String : Any]

    Return Value

    A dictionary if the text is a JSON string and convertible to a dictionary otherwise returns nil.

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  • Converts an object to a JSON string if possible.

    Declaration

    Swift

    static func jsonString(jsonObject: Any?, writingOptions: JSONSerialization.WritingOptions?) -> String?

    Parameters

    jsonObject

    An object to convert to JSON string.
    writingOptions

    Optional array of WritingOptions to control the JSON string output.

    Return Value

    A string if the object is convertible to JSON string or nil.

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  • Initializes a string from an object that conforms to Encodable protocol.

    Throws

    EosioError if the passed object is not convertible to JSON string.

    Declaration

    Swift

    init<T>(encodeToJson: T) throws where T : Encodable

    Parameters

    encodeToJson

    An object that conforms to Encodable protocol.
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  • Declaration

    Swift

    var isValidBase58: Bool { get }

    Return Value

    Bool indicating whether the current string is a validly encode base58 string.

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  • Does the string contain all of the provided words?

    Declaration

    Swift

    func contains(words: String) -> Bool

    Parameters

    words

    Words to look for in the string.

    Return Value

    true if the string contains all of the words in words. Otherwise, false.

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  • Declaration

    Swift

    var isValidEosioName: Bool { get }

    Return Value

    true if a string is a valid EOSIO name.

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