added iOS source code

[wl-app.git] / iOS / Pods / AEXML / Sources / Parser.swift

diff --git a/iOS/Pods/AEXML/Sources/Parser.swift b/iOS/Pods/AEXML/Sources/Parser.swift
new file mode 100644 (file)
index 0000000..d596b90
--- /dev/null
+++ b/iOS/Pods/AEXML/Sources/Parser.swift
@@ -0,0 +1,81 @@
+import Foundation
+
+/// Simple wrapper around `Foundation.XMLParser`.
+internal class AEXMLParser: NSObject, XMLParserDelegate {
+    
+    // MARK: - Properties
+    
+    let document: AEXMLDocument
+    let data: Data
+    
+    var currentParent: AEXMLElement?
+    var currentElement: AEXMLElement?
+    var currentValue = String()
+    
+    var parseError: Error?
+    
+    private lazy var trimWhitespace: Bool = {
+        let trim = self.document.options.parserSettings.shouldTrimWhitespace
+        return trim
+    }()
+    
+    // MARK: - Lifecycle
+    
+    init(document: AEXMLDocument, data: Data) {
+        self.document = document
+        self.data = data
+        currentParent = document
+        
+        super.init()
+    }
+    
+    // MARK: - API
+    
+    func parse() throws {
+        let parser = XMLParser(data: data)
+        parser.delegate = self
+        
+        parser.shouldProcessNamespaces = document.options.parserSettings.shouldProcessNamespaces
+        parser.shouldReportNamespacePrefixes = document.options.parserSettings.shouldReportNamespacePrefixes
+        parser.shouldResolveExternalEntities = document.options.parserSettings.shouldResolveExternalEntities
+        
+        let success = parser.parse()
+        
+        if !success {
+            guard let error = parseError else { throw AEXMLError.parsingFailed }
+            throw error
+        }
+    }
+    
+    // MARK: - XMLParserDelegate
+    
+    func parser(_ parser: XMLParser,
+                      didStartElement elementName: String,
+                      namespaceURI: String?,
+                      qualifiedName qName: String?,
+                      attributes attributeDict: [String : String])
+    {
+        currentValue = String()
+        currentElement = currentParent?.addChild(name: elementName, attributes: attributeDict)
+        currentParent = currentElement
+    }
+    
+    func parser(_ parser: XMLParser, foundCharacters string: String) {
+        currentValue.append(trimWhitespace ? string.trimmingCharacters(in: .whitespacesAndNewlines) : string)
+        currentElement?.value = currentValue.isEmpty ? nil : currentValue
+    }
+    
+    func parser(_ parser: XMLParser,
+                      didEndElement elementName: String,
+                      namespaceURI: String?,
+                      qualifiedName qName: String?)
+    {
+        currentParent = currentParent?.parent
+        currentElement = nil
+    }
+    
+    func parser(_ parser: XMLParser, parseErrorOccurred parseError: Error) {
+        self.parseError = parseError
+    }
+    
+}