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Add LStrip and RStrip to C# strings

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This commit is contained in:
Aaron Franke 2020-10-31 21:18:51 -04:00
parent 593e35346a
commit c89af1d433
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GPG Key ID: 40A1750B977E56BF
1 changed files with 63 additions and 0 deletions
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63
modules/mono/glue/GodotSharp/GodotSharp/Core/StringExtensions.cs
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@ -322,6 +322,15 @@ namespace Godot
return instance.IndexOf(what, from, caseSensitive ? StringComparison.Ordinal : StringComparison.OrdinalIgnoreCase);
}
/// <summary>Find the first occurrence of a char. Optionally, the search starting position can be passed.</summary>
/// <returns>The first instance of the char, or -1 if not found.</returns>
public static int Find(this string instance, char what, int from = 0, bool caseSensitive = true)
{
// TODO: Could be more efficient if we get a char version of `IndexOf`.
// See https://github.com/dotnet/runtime/issues/44116
return instance.IndexOf(what.ToString(), from, caseSensitive ? StringComparison.Ordinal : StringComparison.OrdinalIgnoreCase);
}
/// <summary>Find the last occurrence of a substring.</summary>
/// <returns>The starting position of the substring, or -1 if not found.</returns>
public static int FindLast(this string instance, string what, bool caseSensitive = true)
@ -658,6 +667,33 @@ namespace Godot
return instance.Length;
}
/// <summary>
/// Returns a copy of the string with characters removed from the left.
/// </summary>
/// <param name="instance">The string to remove characters from.</param>
/// <param name="chars">The characters to be removed.</param>
/// <returns>A copy of the string with characters removed from the left.</returns>
public static string LStrip(this string instance, string chars)
{
int len = instance.Length;
int beg;
for (beg = 0; beg < len; beg++)
{
if (chars.Find(instance[beg]) == -1)
{
break;
}
}
if (beg == 0)
{
return instance;
}
return instance.Substr(beg, len - beg);
}
/// <summary>
/// Do a simple expression match, where '*' matches zero or more arbitrary characters and '?' matches any single character except '.'.
/// </summary>
@ -886,6 +922,33 @@ namespace Godot
return instance.Substring(pos, instance.Length - pos);
}
/// <summary>
/// Returns a copy of the string with characters removed from the right.
/// </summary>
/// <param name="instance">The string to remove characters from.</param>
/// <param name="chars">The characters to be removed.</param>
/// <returns>A copy of the string with characters removed from the right.</returns>
public static string RStrip(this string instance, string chars)
{
int len = instance.Length;
int end;
for (end = len - 1; end >= 0; end--)
{
if (chars.Find(instance[end]) == -1)
{
break;
}
}
if (end == len - 1)
{
return instance;
}
return instance.Substr(0, end + 1);
}
public static byte[] SHA256Buffer(this string instance)
{
return godot_icall_String_sha256_buffer(instance);