AgrawalAshishS / SmallestCSVParser

World's Smallest CSV Parser (C#)

World's Smallest CSV Parser (C#)

This is a CSV (RFC4180) Parser in 100 LOC.

It does not give you spaghetti abstractions like other libraries. The API is simply this:

while (true) {
    List<string>? columns = parser.ReadNextRow();
    if (columns == null) {
        Console.WriteLine("End of file reached");
        break;
    }
    var prettyRow = System.Text.Json.JsonSerializer.Serialize(columns);
    Console.WriteLine($"Read row: {prettyRow}");
}

You can easily create your own high level DictReader or whatever extravagance you want, for example supporting an Excel "column groups feature" (multiple headers having the same name, and/or headers with empty names that are expected to inherit the previous header's name), or mapping "NA" and "N/A" to null, etc., which is very far outside the scope of RFC4180.

Links

• Unit Tests

• World's Smallest Parser

• Example Usage Program

• Changelog

Install

Install the NuGet Package via: dotnet add package SmallestCSVParser

License

• If you are a human, you may use and modify this code.

• Copyright © 2024 Karl Pickett

Enjoy 👍