59 lines
2.4 KiB
Swift
59 lines
2.4 KiB
Swift
//
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// Copyright (c) 2018 Touch Instinct
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the Software), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED AS IS, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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//
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import Foundation
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public extension NumberFormattingService {
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/// Computed static property. Use only once for `formatters` field implementation!
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static var computedFormatters: [NumberFormatType: NumberFormatter] {
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Dictionary(uniqueKeysWithValues: NumberFormatType.allCases.map { ($0, $0.numberFormatter) })
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}
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func numberFormatter(for format: NumberFormatType) -> NumberFormatter {
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guard let formatter = formatters[format] else {
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fatalError("Unregistered number formatter for \(format)")
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}
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return formatter
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}
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func string(from number: NSNumberConvertible, format: NumberFormatType, defaultString: String = "") -> String {
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numberFormatter(for: format).string(from: number.asNSNumber()) ?? defaultString
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}
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func number(from string: String, format: NumberFormatType) -> NSNumber? {
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numberFormatter(for: format).number(from: string)
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}
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}
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public extension NumberFormattingService where Self: Singleton {
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static func string(from number: NSNumberConvertible, format: NumberFormatType, defaultString: String = "") -> String {
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shared.string(from: number, format: format, defaultString: defaultString)
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}
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static func number(from string: String, format: NumberFormatType) -> NSNumber? {
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shared.number(from: string, format: format)
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}
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}
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