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- #nullable enable
- using System;
- namespace MediaBrowser.Common.Extensions
- {
- /// <summary>
- /// Extensions methods to simplify string operations.
- /// </summary>
- public static class StringExtensions
- {
- /// <summary>
- /// Returns the part on the left of the <c>needle</c>.
- /// </summary>
- /// <param name="haystack">The string to seek.</param>
- /// <param name="needle">The needle to find.</param>
- /// <returns>The part left of the <paramref name="needle" />.</returns>
- public static ReadOnlySpan<char> LeftPart(this ReadOnlySpan<char> haystack, char needle)
- {
- var pos = haystack.IndexOf(needle);
- return pos == -1 ? haystack : haystack[..pos];
- }
- /// <summary>
- /// Returns the part on the left of the <c>needle</c>.
- /// </summary>
- /// <param name="haystack">The string to seek.</param>
- /// <param name="needle">The needle to find.</param>
- /// <param name="stringComparison">One of the enumeration values that specifies the rules for the search.</param>
- /// <returns>The part left of the <c>needle</c>.</returns>
- public static ReadOnlySpan<char> LeftPart(this ReadOnlySpan<char> haystack, ReadOnlySpan<char> needle, StringComparison stringComparison = default)
- {
- var pos = haystack.IndexOf(needle, stringComparison);
- return pos == -1 ? haystack : haystack[..pos];
- }
- }
- }
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