1 files changed, 65 insertions, 0 deletions
diff --git a/Emby.Naming/Subtitles/SubtitleParser.cs b/Emby.Naming/Subtitles/SubtitleParser.cs
new file mode 100644
index 0000000000..fbf0f60cba
--- /dev/null
+++ b/Emby.Naming/Subtitles/SubtitleParser.cs
@@ -0,0 +1,65 @@
+using Emby.Naming.Common;
+using System;
+using System.IO;
+using System.Linq;
+
+namespace Emby.Naming.Subtitles
+{
+    public class SubtitleParser
+    {
+        private readonly NamingOptions _options;
+
+        public SubtitleParser(NamingOptions options)
+        {
+            _options = options;
+        }
+
+        public SubtitleInfo ParseFile(string path)
+        {
+            if (string.IsNullOrEmpty(path))
+            {
+                throw new ArgumentNullException("path");
+            }
+
+            var extension = Path.GetExtension(path);
+            if (!_options.SubtitleFileExtensions.Contains(extension, StringComparer.OrdinalIgnoreCase))
+            {
+                return null;
+            }
+
+            var flags = GetFlags(path);
+
+            var info = new SubtitleInfo
+            {
+                Path = path,
+                IsDefault = _options.SubtitleDefaultFlags.Any(i => flags.Contains(i, StringComparer.OrdinalIgnoreCase)),
+                IsForced = _options.SubtitleForcedFlags.Any(i => flags.Contains(i, StringComparer.OrdinalIgnoreCase))
+            };
+
+            var parts = flags.Where(i => !_options.SubtitleDefaultFlags.Contains(i, StringComparer.OrdinalIgnoreCase) && !_options.SubtitleForcedFlags.Contains(i, StringComparer.OrdinalIgnoreCase))
+                .ToList();
+
+            // Should have a name, language and file extension
+            if (parts.Count >= 3)
+            {
+                info.Language = parts[parts.Count - 2];
+            }
+
+            return info;
+        }
+
+        private string[] GetFlags(string path)
+        {
+            if (string.IsNullOrEmpty(path))
+            {
+                throw new ArgumentNullException("path");
+            }
+
+            // Note: the tags need be be surrounded be either a space ( ), hyphen -, dot . or underscore _.
+
+            var file = Path.GetFileName(path);
+
+            return file.Split(_options.SubtitleFlagDelimiters, StringSplitOptions.RemoveEmptyEntries);
+        }
+    }
+}