yumoqing
05afadfd11
- MediaLibrary.swift: 数据模型(JSON持久化) + 播放列表管理 + 标签/喜欢 - M3UParser.swift: 解析IPTV格式M3U播放列表(EXTINF属性) - MediaLibraryView.swift: NavigationSplitView侧边栏+内容区UI - PlayerBridge.swift: 播放位置记忆(暂停/切歌/退出保存,播放恢复) - 本地视频自动入库,搜索结果临时播放列表,所有操作不中断播放 - 快捷键: Cmd+Shift+L 媒体库, Cmd+Shift+I 导入M3U
118 lines
4.2 KiB
Swift
118 lines
4.2 KiB
Swift
import Foundation
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/// M3U 播放列表解析器（支持 IPTV EXTINF 格式）
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enum M3UParser {
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struct Channel {
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var name: String
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var url: String
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var group: String?
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var logoURL: String?
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var type: String // "stream" or "url"
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}
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/// 从字符串内容解析 M3U
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static func parse(_ content: String) -> [Channel] {
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let lines = content.components(separatedBy: .newlines)
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var channels: [Channel] = []
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var pendingName: String?
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var pendingGroup: String?
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var pendingLogo: String?
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for rawLine in lines {
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let line = rawLine.trimmingCharacters(in: .whitespacesAndNewlines)
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guard !line.isEmpty else { continue }
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// 跳过 M3U 头部
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if line.hasPrefix("#EXTM3U") { continue }
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// 跳过其他注释（非 EXTINF）
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if line.hasPrefix("#") && !line.hasPrefix("#EXTINF") { continue }
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if line.hasPrefix("#EXTINF") {
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// 解析 #EXTINF:-1 tvg-name="..." group-title="..." tvg-logo="...",Channel Name
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let info = String(line.dropFirst("#EXTINF".count))
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// 提取逗号后的频道名
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if let commaIdx = info.lastIndex(of: ",") {
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let afterComma = String(info[info.index(after: commaIdx)...])
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pendingName = afterComma.trimmingCharacters(in: .whitespaces)
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}
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// 提取属性
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let attrs = parseAttributes(info)
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if let tvgName = attrs["tvg-name"], (pendingName ?? "").isEmpty {
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pendingName = tvgName
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}
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pendingGroup = attrs["group-title"]
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pendingLogo = attrs["tvg-logo"]
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} else if !line.hasPrefix("#") {
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// URL 行
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let url = line
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let name = (pendingName ?? "").isEmpty
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? (URL(string: url)?.host ?? url)
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: pendingName!
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let isStream = url.contains(".m3u8") || url.contains(".m3u")
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|| url.contains("://") && !url.hasSuffix(".mp4")
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channels.append(Channel(
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name: name,
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url: url,
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group: pendingGroup,
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logoURL: pendingLogo,
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type: isStream ? "stream" : "url"
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))
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pendingName = nil
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pendingGroup = nil
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pendingLogo = nil
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}
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}
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return channels
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}
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/// 从 URL 异步下载并解析 M3U
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static func fetchAndParse(url: URL) async throws -> [Channel] {
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let (data, _) = try await URLSession.shared.data(from: url)
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guard let content = String(data: data, encoding: .utf8) else {
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throw M3UError.invalidEncoding
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}
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return parse(content)
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}
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// MARK: - 私有
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private static func parseAttributes(_ line: String) -> [String: String] {
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var attrs: [String: String] = [:]
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// 匹配 key="value"
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let pattern = #"([a-zA-Z\-]+)="([^"]*)""#
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guard let regex = try? NSRegularExpression(pattern: pattern) else { return attrs }
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let matches = regex.matches(in: line, range: NSRange(line.startIndex..., in: line))
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for m in matches {
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guard m.numberOfRanges == 3,
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let keyRange = Range(m.range(at: 1), in: line),
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let valRange = Range(m.range(at: 2), in: line) else { continue }
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attrs[String(line[keyRange])] = String(line[valRange])
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}
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return attrs
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}
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enum M3UError: Error, LocalizedError {
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case invalidEncoding
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case invalidURL
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case emptyResult
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var errorDescription: String? {
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switch self {
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case .invalidEncoding: return "无法解码M3U文件（需要UTF-8编码）"
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case .invalidURL: return "无效的URL"
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case .emptyResult: return "M3U文件中未找到频道"
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}
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}
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}
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}
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