Add OPMLExporter. Fix an invalid OPML bug.

Evergreen.xcodeproj/project.pbxproj

@@ -18,6 +18,7 @@
 		842E45E51ED8C6B7000A8B52 /* MainWindowSplitView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 842E45E41ED8C6B7000A8B52 /* MainWindowSplitView.swift */; };
 		842E45E71ED8C747000A8B52 /* DB5.plist in Resources */ = {isa = PBXBuildFile; fileRef = 842E45E61ED8C747000A8B52 /* DB5.plist */; };
 		84411E711FE5FBFA004B527F /* SmallIconProvider.swift in Sources */ = {isa = PBXBuildFile; fileRef = 84411E701FE5FBFA004B527F /* SmallIconProvider.swift */; };
+		8444C8F21FED81840051386C /* OPMLExporter.swift in Sources */ = {isa = PBXBuildFile; fileRef = 8444C8F11FED81840051386C /* OPMLExporter.swift */; };
 		844B5B591FE9FE4F00C7C76A /* SidebarKeyboardDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 844B5B581FE9FE4F00C7C76A /* SidebarKeyboardDelegate.swift */; };
 		844B5B5B1FEA00FB00C7C76A /* TimelineKeyboardDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 844B5B5A1FEA00FB00C7C76A /* TimelineKeyboardDelegate.swift */; };
 		844B5B651FEA11F200C7C76A /* GlobalKeyboardShortcuts.plist in Resources */ = {isa = PBXBuildFile; fileRef = 844B5B641FEA11F200C7C76A /* GlobalKeyboardShortcuts.plist */; };
@@ -425,6 +426,7 @@
 		842E45E41ED8C6B7000A8B52 /* MainWindowSplitView.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = MainWindowSplitView.swift; sourceTree = "<group>"; };
 		842E45E61ED8C747000A8B52 /* DB5.plist */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.xml; name = DB5.plist; path = Evergreen/Resources/DB5.plist; sourceTree = "<group>"; };
 		84411E701FE5FBFA004B527F /* SmallIconProvider.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SmallIconProvider.swift; sourceTree = "<group>"; };
+		8444C8F11FED81840051386C /* OPMLExporter.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = OPMLExporter.swift; sourceTree = "<group>"; };
 		844B5B581FE9FE4F00C7C76A /* SidebarKeyboardDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SidebarKeyboardDelegate.swift; sourceTree = "<group>"; };
 		844B5B5A1FEA00FB00C7C76A /* TimelineKeyboardDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = TimelineKeyboardDelegate.swift; sourceTree = "<group>"; };
 		844B5B641FEA11F200C7C76A /* GlobalKeyboardShortcuts.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = GlobalKeyboardShortcuts.plist; sourceTree = "<group>"; };
@@ -596,6 +598,14 @@
 			path = Evergreen/MainWindow;
 			sourceTree = "<group>";
 		};
+		8444C9011FED81880051386C /* Exporters */ = {
+			isa = PBXGroup;
+			children = (
+				8444C8F11FED81840051386C /* OPMLExporter.swift */,
+			);
+			path = Exporters;
+			sourceTree = "<group>";
+		};
 		844B5B6A1FEA224000C7C76A /* Keyboard */ = {
 			isa = PBXGroup;
 			children = (
@@ -857,6 +867,7 @@
 				849A978B1ED9EE4D007D329B /* Feed List */,
 				849A97901ED9EF65007D329B /* Progress Window */,
 				84DAEE201F86CAE00058304B /* Importers */,
+				8444C9011FED81880051386C /* Exporters */,
 				84F2D5341FC22FCB00998D64 /* SmartFeeds */,
 				849A97561ED9EB0D007D329B /* Data */,
 				8426119C1FCB6ED40086A189 /* HTMLMetadata */,
@@ -1401,6 +1412,7 @@
 				842E45DD1ED8C54B000A8B52 /* Browser.swift in Sources */,
 				842E45E31ED8C681000A8B52 /* KeyboardDelegateProtocol.swift in Sources */,
 				845F52ED1FB2B9FC00C10BF0 /* FeedPasteboardWriter.swift in Sources */,
+				8444C8F21FED81840051386C /* OPMLExporter.swift in Sources */,
 				849A975E1ED9EB72007D329B /* MainWindowController.swift in Sources */,
 				842E45E51ED8C6B7000A8B52 /* MainWindowSplitView.swift in Sources */,
 				84F2D53A1FC2308B00998D64 /* UnreadFeed.swift in Sources */,

Evergreen/AppDelegate.swift

@@ -388,7 +388,8 @@ class AppDelegate: NSObject, NSApplicationDelegate, NSUserInterfaceValidations,
 		let result = panel.runModal()
 		if result == NSApplication.ModalResponse.OK, let url = panel.url {
 			DispatchQueue.main.async {
-				let opmlString = AccountManager.shared.localAccount.OPMLString(indentLevel: 0)
+				let filename = url.lastPathComponent
+				let opmlString = OPMLExporter.OPMLString(with: AccountManager.shared.localAccount, title: filename)
 				do {
 					try opmlString.write(to: url, atomically: true, encoding: String.Encoding.utf8)
 				}

Exporters/OPMLExporter.swift

@@ -0,0 +1,41 @@
+//
+//  OPMLExporter.swift
+//  Evergreen
+//
+//  Created by Brent Simmons on 12/22/17.
+//  Copyright © 2017 Ranchero Software. All rights reserved.
+//
+
+import Foundation
+import Account
+import RSCore
+
+struct OPMLExporter {
+
+	static func OPMLString(with account: Account, title: String) -> String {
+
+		let escapedTitle = title.rs_stringByEscapingSpecialXMLCharacters()
+		let openingText =
+			"""
+			<?xml version="1.0" encoding="UTF-8"?>
+			<!-- OPML generated by Evergreen -->
+			<opml version="1.1">
+				<head>
+					<title>\(escapedTitle)</title>
+				</head>
+			<body>
+			
+			"""
+
+		let middleText = account.OPMLString(indentLevel: 0)
+
+		let closingText =
+			"""
+				</body>
+			</opml>
+			"""
+
+		let opml = openingText + middleText + closingText
+		return opml
+	}
+}