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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Text;
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using System.Text.RegularExpressions;
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using NLog;
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using NzbDrone.Core.Model;
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using NzbDrone.Core.Providers;
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using NzbDrone.Core.Repository.Quality;
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namespace NzbDrone.Core
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{
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internal static class Parser
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{
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private static readonly Logger Logger = LogManager.GetCurrentClassLogger();
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private static readonly Regex[] ReportTitleRegex = new[]
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{
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new Regex(@"(?<title>.+?)?\W?(?<year>\d+?)?\WS?(?<season>\d+)((?:\-|\.|[a-z])(?<episode>\d+))+\W(?!\\)", RegexOptions.IgnoreCase | RegexOptions.Compiled),
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new Regex(@"(?<title>.+?)?\W?(?<year>\d+?)?\WS?(?<season>\d+)(?<episode>\d{2})\W(?!\\)", RegexOptions.IgnoreCase | RegexOptions.Compiled) //Supports 103/113 naming
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};
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private static readonly Regex[] SeasonReportTitleRegex = new[]
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{
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new Regex(@"(?<title>.+?)?\W?(?<year>\d{4}?)?\W(?:S|Season)?\W?(?<season>\d+)(?!\\)", RegexOptions.IgnoreCase | RegexOptions.Compiled),
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};
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private static readonly Regex NormalizeRegex = new Regex(@"((\s|^)the(\s|$))|((\s|^)and(\s|$))|[^a-z]", RegexOptions.IgnoreCase | RegexOptions.Compiled);
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/// <summary>
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/// Parses a post title into list of episodes it contains
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/// </summary>
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/// <param name="title">Title of the report</param>
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/// <returns>List of episodes contained to the post</returns>
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internal static EpisodeParseResult ParseEpisodeInfo(string title)
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{
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Logger.Trace("Parsing string '{0}'", title);
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foreach (var regex in ReportTitleRegex)
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{
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var match = regex.Matches(title);
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if (match.Count != 0)
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{
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var seriesName = NormalizeTitle(match[0].Groups["title"].Value);
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var year = 0;
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Int32.TryParse(match[0].Groups["year"].Value, out year);
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if (year < 1900 || year > DateTime.Now.Year + 1)
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{
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year = 0;
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}
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var parsedEpisode = new EpisodeParseResult
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{
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Proper = title.ToLower().Contains("proper"),
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SeriesTitle = seriesName,
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SeasonNumber = Convert.ToInt32(match[0].Groups["season"].Value),
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Year = year,
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Episodes = new List<int>()
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};
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foreach (Match matchGroup in match)
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{
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parsedEpisode.Episodes.Add(Convert.ToInt32(matchGroup.Groups["episode"].Value));
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<<<<<<< HEAD
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var seasonNumber = Convert.ToInt32(matchGroup.Groups["season"].Value);
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foreach (Capture episode in matchGroup.Groups["episode"].Captures)
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{
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var parsedEpisode = new EpisodeParseResult
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{
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SeriesTitle = seriesName,
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SeasonNumber = seasonNumber,
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EpisodeNumber = Convert.ToInt32(episode.Value),
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Year = year
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};
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result.Add(parsedEpisode);
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Logger.Trace("Episode Parsed. {0}", parsedEpisode);
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}
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}
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break; //Break out of the for loop, we don't want to process every REGEX for each item otherwise we'll get duplicates
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=======
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}
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parsedEpisode.Quality = ParseQuality(title);
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Logger.Trace("Episode Parsed. {0}", parsedEpisode);
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return parsedEpisode;
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>>>>>>> 2d9285eee29d96b6eedee98e358aa76c32c2998f
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}
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}
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return null;
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}
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/// <summary>
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/// Parses a post title into season it contains
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/// </summary>
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/// <param name="title">Title of the report</param>
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/// <returns>Season information contained in the post</returns>
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internal static SeasonParseResult ParseSeasonInfo(string title)
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{
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Logger.Trace("Parsing string '{0}'", title);
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foreach (var regex in ReportTitleRegex)
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{
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var match = regex.Matches(title);
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if (match.Count != 0)
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{
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var seriesName = NormalizeTitle(match[0].Groups["title"].Value);
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var year = 0;
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Int32.TryParse(match[0].Groups["year"].Value, out year);
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if (year < 1900 || year > DateTime.Now.Year + 1)
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{
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year = 0;
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}
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var seasonNumber = Convert.ToInt32(match[0].Groups["season"].Value);
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var result = new SeasonParseResult
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{
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SeriesTitle = seriesName,
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SeasonNumber = seasonNumber,
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Year = year
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};
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result.Quality = ParseQuality(title);
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Logger.Trace("Season Parsed. {0}", result);
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return result;
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}
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}
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return null; //Return null
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}
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/// <summary>
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/// Parses a post title to find the series that relates to it
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/// </summary>
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/// <param name="title">Title of the report</param>
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/// <returns>Normalized Series Name</returns>
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internal static string ParseSeriesName(string title)
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{
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Logger.Trace("Parsing string '{0}'", title);
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foreach (var regex in ReportTitleRegex)
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{
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var match = regex.Matches(title);
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if (match.Count != 0)
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{
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var seriesName = NormalizeTitle(match[0].Groups["title"].Value);
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var year = 0;
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Int32.TryParse(match[0].Groups["year"].Value, out year);
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if (year < 1900 || year > DateTime.Now.Year + 1)
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{
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year = 0;
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}
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Logger.Trace("Series Parsed. {0}", seriesName);
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return seriesName;
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}
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}
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return String.Empty;
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}
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/// <summary>
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/// Parses proper status out of a report title
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/// </summary>
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/// <param name="title">Title of the report</param>
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/// <returns></returns>
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internal static bool ParseProper(string title)
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{
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return title.ToLower().Contains("proper");
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}
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private static QualityTypes ParseQuality(string name)
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{
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Logger.Trace("Trying to parse quality for {0}", name);
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var result = QualityTypes.Unknown;
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name = name.ToLowerInvariant();
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if (name.Contains("dvd"))
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return QualityTypes.DVD;
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if (name.Contains("bdrip") || name.Contains("brrip"))
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{
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return QualityTypes.BDRip;
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}
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if (name.Contains("xvid") || name.Contains("divx"))
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{
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if (name.Contains("bluray"))
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{
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return QualityTypes.BDRip;
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}
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return QualityTypes.TV;
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}
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if (name.Contains("bluray"))
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{
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if (name.Contains("720p"))
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return QualityTypes.Bluray720;
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if (name.Contains("1080p"))
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return QualityTypes.Bluray1080;
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return QualityTypes.Bluray720;
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}
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if (name.Contains("web-dl"))
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return QualityTypes.WEBDL;
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if (name.Contains("x264") || name.Contains("h264") || name.Contains("720p"))
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return QualityTypes.HDTV;
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//Based on extension
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if (result == QualityTypes.Unknown)
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{
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switch (new FileInfo(name).Extension.ToLower())
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{
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case ".avi":
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case ".xvid":
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case ".wmv":
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{
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result = QualityTypes.TV;
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break;
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}
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case ".mkv":
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{
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result = QualityTypes.HDTV;
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break;
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}
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}
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}
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Logger.Trace("Quality Parsed:{0} Title:", result, name);
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return result;
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}
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/// <summary>
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/// Normalizes the title. removing all non-word characters as well as common tokens
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/// such as 'the' and 'and'
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/// </summary>
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/// <param name="title">title</param>
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/// <returns></returns>
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internal static string NormalizeTitle(string title)
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{
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return NormalizeRegex.Replace(title, String.Empty).ToLower();
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}
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//Note: changing case on path is a problem for running on mono/*nix
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//Not going to change the casing any more... Looks Ugly in UI anyways :P
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public static string NormalizePath(string path)
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{
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if (String.IsNullOrEmpty(path))
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throw new ArgumentException("Path can not be null or empty");
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var info = new FileInfo(path);
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if (info.FullName.StartsWith(@"\\")) //UNC
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{
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return info.FullName.TrimEnd('/', '\\', ' ');
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}
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return info.FullName.Trim('/', '\\', ' ');
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}
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}
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}
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Mark McDowall
14 years ago