Recently, I needed for my source generator a simple package that converts names from PascalCase to camelCase and vice versa. The available packages were not very optimal in terms of allocated memory, so I wrote my own, here are examples of usage along with a performance comparison.
GitHub: https://github.com/SzymonHalucha/Minerals.StringCases
NugGet: https://www.nuget.org/packages/Minerals.StringCases/
using Minerals.StringCases;
string sampleText = " _ example Variable - - Name 321";
string pascalCase = sampleText.ToPascalCase();
// ExampleVariableName321
string camelCase = sampleText.ToCamelCase();
// exampleVariableName321
string underscoreCamelCase = sampleText.ToUnderscoreCamelCase();
// _exampleVariableName321
string kebabCase = sampleText.ToKebabCase();
// example-variable-name-321
string snakeCase = sampleText.ToSnakeCase();
// example_variable_name_321
string macroCase = sampleText.ToMacroCase();
// EXAMPLE_VARIABLE_NAME_321
string trainCase = sampleText.ToTrainCase();
// Example-Variable-Name-321
string titleCase = sampleText.ToTitleCase();
// Example Variable Name 321
Here is a comparison of the speed and amount of memory allocation with the most popular NuGet package similar to Minerals.StringCases version 0.1.0 - CaseExtesions version 1.1.0.
String used to perform the comparison:
string sampleText = " _ example Variable - - Name 321";
Results
BenchmarkDotNet v0.13.12, Windows 10 (10.0.19045.4291/22H2/2022Update)
AMD Ryzen 5 2600, 1 CPU, 12 logical and 6 physical cores
.NET SDK 8.0.204
[Host] : .NET 8.0.4 (8.0.424.16909), X64 RyuJIT AVX2
Job-LXTTHC : .NET 8.0.4 (8.0.424.16909), X64 RyuJIT AVX2
| Method | Mean | Error | StdDev | Gen0 | Allocated |
|---|---|---|---|---|---|
| CamelCase_Minerals_StringCases | 153.0 ns | 1.32 ns | 1.03 ns | 0.0343 | 144 B |
| PascalCase_Minerals_StringCases | 159.2 ns | 2.11 ns | 1.98 ns | 0.0343 | 144 B |
| SnakeCase_Minerals_StringCases | 187.9 ns | 1.12 ns | 1.00 ns | 0.0362 | 152 B |
| KebabCase_Minerals_StringCases | 202.1 ns | 1.94 ns | 1.82 ns | 0.0362 | 152 B |
| TrainCase_Minerals_StringCases | 213.2 ns | 1.22 ns | 1.08 ns | 0.0362 | 152 B |
| - | - | - | - | - | - |
| PascalCase_CaseExtensions | 517.7 ns | 4.23 ns | 3.96 ns | 0.0973 | 408 B |
| KebabCase_CaseExtensions | 529.3 ns | 3.52 ns | 3.29 ns | 0.0992 | 416 B |
| SnakeCase_CaseExtensions | 531.2 ns | 4.56 ns | 4.26 ns | 0.0992 | 416 B |
| TrainCase_CaseExtensions | 533.5 ns | 5.08 ns | 4.50 ns | 0.0992 | 416 B |
| CamelCase_CaseExtensions | 549.7 ns | 6.09 ns | 5.69 ns | 0.0973 | 408 B |
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