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49 lines
1.6 KiB
49 lines
1.6 KiB
using System.Diagnostics.CodeAnalysis;
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using System.Text.RegularExpressions;
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namespace Emby.Naming.Video;
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/// <summary>
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/// Regex based rule for file stacking (eg. disc1, disc2).
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/// </summary>
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public class FileStackRule
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{
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private readonly Regex _tokenRegex;
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/// <summary>
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/// Initializes a new instance of the <see cref="FileStackRule"/> class.
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/// </summary>
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/// <param name="token">Token.</param>
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/// <param name="isNumerical">Whether the file stack rule uses numerical or alphabetical numbering.</param>
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public FileStackRule(string token, bool isNumerical)
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{
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_tokenRegex = new Regex(token, RegexOptions.IgnoreCase | RegexOptions.Compiled);
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IsNumerical = isNumerical;
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}
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/// <summary>
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/// Gets a value indicating whether the rule uses numerical or alphabetical numbering.
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/// </summary>
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public bool IsNumerical { get; }
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/// <summary>
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/// Match the input against the rule regex.
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/// </summary>
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/// <param name="input">The input.</param>
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/// <param name="result">The part type and number or <c>null</c>.</param>
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/// <returns>A value indicating whether the input matched the rule.</returns>
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public bool Match(string input, [NotNullWhen(true)] out (string StackName, string PartType, string PartNumber)? result)
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{
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result = null;
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var match = _tokenRegex.Match(input);
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if (!match.Success)
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{
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return false;
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}
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var partType = match.Groups["parttype"].Success ? match.Groups["parttype"].Value : "unknown";
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result = (match.Groups["filename"].Value, partType, match.Groups["number"].Value);
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return true;
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}
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}
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