1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
|
#pragma warning disable CS1591
using System;
using System.Globalization;
using System.IO;
namespace Emby.Naming.TV
{
public static class SeasonPathParser
{
/// <summary>
/// A season folder must contain one of these somewhere in the name.
/// </summary>
private static readonly string[] _seasonFolderNames =
{
"season",
"sæson",
"temporada",
"saison",
"staffel",
"series",
"сезон",
"stagione"
};
public static SeasonPathParserResult Parse(string path, bool supportSpecialAliases, bool supportNumericSeasonFolders)
{
var result = new SeasonPathParserResult();
var (seasonNumber, isSeasonFolder) = GetSeasonNumberFromPath(path, supportSpecialAliases, supportNumericSeasonFolders);
result.SeasonNumber = seasonNumber;
if (result.SeasonNumber.HasValue)
{
result.Success = true;
result.IsSeasonFolder = isSeasonFolder;
}
return result;
}
/// <summary>
/// Gets the season number from path.
/// </summary>
/// <param name="path">The path.</param>
/// <param name="supportSpecialAliases">if set to <c>true</c> [support special aliases].</param>
/// <param name="supportNumericSeasonFolders">if set to <c>true</c> [support numeric season folders].</param>
/// <returns>System.Nullable{System.Int32}.</returns>
private static (int? seasonNumber, bool isSeasonFolder) GetSeasonNumberFromPath(
string path,
bool supportSpecialAliases,
bool supportNumericSeasonFolders)
{
var filename = Path.GetFileName(path) ?? string.Empty;
if (supportSpecialAliases)
{
if (string.Equals(filename, "specials", StringComparison.OrdinalIgnoreCase))
{
return (0, true);
}
if (string.Equals(filename, "extras", StringComparison.OrdinalIgnoreCase))
{
return (0, true);
}
}
if (supportNumericSeasonFolders)
{
if (int.TryParse(filename, NumberStyles.Integer, CultureInfo.InvariantCulture, out var val))
{
return (val, true);
}
}
if (filename.StartsWith("s", StringComparison.OrdinalIgnoreCase))
{
var testFilename = filename.Substring(1);
if (int.TryParse(testFilename, NumberStyles.Integer, CultureInfo.InvariantCulture, out var val))
{
return (val, true);
}
}
// Look for one of the season folder names
foreach (var name in _seasonFolderNames)
{
if (filename.Contains(name, StringComparison.OrdinalIgnoreCase))
{
var result = GetSeasonNumberFromPathSubstring(filename.Replace(name, " ", StringComparison.OrdinalIgnoreCase));
if (result.seasonNumber.HasValue)
{
return result;
}
break;
}
}
var parts = filename.Split(new[] { '.', '_', ' ', '-' }, StringSplitOptions.RemoveEmptyEntries);
for (int i = 0; i < parts.Length; i++)
{
if (TryGetSeasonNumberFromPart(parts[i], out int seasonNumber))
{
return (seasonNumber, true);
}
}
return (null, true);
}
private static bool TryGetSeasonNumberFromPart(ReadOnlySpan<char> part, out int seasonNumber)
{
seasonNumber = 0;
if (part.Length < 2 || !part.StartsWith("s", StringComparison.OrdinalIgnoreCase))
{
return false;
}
if (int.TryParse(part.Slice(1), NumberStyles.Integer, CultureInfo.InvariantCulture, out var value))
{
seasonNumber = value;
return true;
}
return false;
}
/// <summary>
/// Extracts the season number from the second half of the Season folder name (everything after "Season", or "Staffel").
/// </summary>
/// <param name="path">The path.</param>
/// <returns>System.Nullable{System.Int32}.</returns>
private static (int? seasonNumber, bool isSeasonFolder) GetSeasonNumberFromPathSubstring(ReadOnlySpan<char> path)
{
var numericStart = -1;
var length = 0;
var hasOpenParenth = false;
var isSeasonFolder = true;
// Find out where the numbers start, and then keep going until they end
for (var i = 0; i < path.Length; i++)
{
if (char.IsNumber(path[i]))
{
if (!hasOpenParenth)
{
if (numericStart == -1)
{
numericStart = i;
}
length++;
}
}
else if (numericStart != -1)
{
// There's other stuff after the season number, e.g. episode number
isSeasonFolder = false;
break;
}
var currentChar = path[i];
if (currentChar == '(')
{
hasOpenParenth = true;
}
else if (currentChar == ')')
{
hasOpenParenth = false;
}
}
if (numericStart == -1)
{
return (null, isSeasonFolder);
}
return (int.Parse(path.Slice(numericStart, length), provider: CultureInfo.InvariantCulture), isSeasonFolder);
}
}
}
|
