94 lines
2.0 KiB
Swift
94 lines
2.0 KiB
Swift
import Foundation
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/// Split a string by spaces leaving quoted phrases together
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func smartSplit(_ value: String) -> [String] {
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var word = ""
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var separator: Character = " "
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var components: [String] = []
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for character in value.characters {
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if character == separator {
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if separator != " " {
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word.append(separator)
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}
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if !word.isEmpty {
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components.append(word)
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word = ""
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}
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separator = " "
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} else {
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if separator == " " && (character == "'" || character == "\"") {
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separator = character
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}
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word.append(character)
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}
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}
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if !word.isEmpty {
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components.append(word)
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}
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return components
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}
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public enum Token : Equatable {
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/// A token representing a piece of text.
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case text(value: String)
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/// A token representing a variable.
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case variable(value: String)
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/// A token representing a comment.
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case comment(value: String)
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/// A token representing a template block.
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case block(value: String)
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/// Returns the underlying value as an array seperated by spaces
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public func components() -> [String] {
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switch self {
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case .block(let value):
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return smartSplit(value)
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case .variable(let value):
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return smartSplit(value)
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case .text(let value):
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return smartSplit(value)
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case .comment(let value):
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return smartSplit(value)
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}
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}
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public var contents: String {
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switch self {
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case .block(let value):
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return value
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case .variable(let value):
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return value
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case .text(let value):
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return value
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case .comment(let value):
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return value
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}
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}
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}
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public func == (lhs: Token, rhs: Token) -> Bool {
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switch (lhs, rhs) {
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case (.text(let lhsValue), .text(let rhsValue)):
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return lhsValue == rhsValue
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case (.variable(let lhsValue), .variable(let rhsValue)):
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return lhsValue == rhsValue
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case (.block(let lhsValue), .block(let rhsValue)):
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return lhsValue == rhsValue
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case (.comment(let lhsValue), .comment(let rhsValue)):
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return lhsValue == rhsValue
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default:
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return false
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}
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}
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