HumanTimeParser

An easy to use library for parsing human time formats into useable objects.

Installing

You can download the HumanTimeParser packages from our NuGet feeds:

• HumanTimeParser.Core
• HumanTimeParser.English

Any prerelease packages are CI/CD builds.

Example

A small example to demonstrate how the EnglishTimeParser works.

// instantiate a reusable time parser.
var parser = new EnglishTimeParser();
// returns a generic ITimeParsingResult
var result = parser.Parse("6 minutes from now"); 

// to determine if the result is successful or not we pattern match.  Pattern matching for DefaultTimeParsingResult also works.
if (result is ISuccessfulTimeParsingResult<DateTime> successfulResult) 
{
  // sucessfulResult.Value will represent a time 6 minutes from DateTime.Now
  Console.WriteLine(successfulResult.Value); 
}
else
{
  // handle failed result
}

HumanTimeParser.Core

This project contains all the tools required to build a time parser.

Notable features:

• Default parser
• Default sectionizer (text splitter)
• Tokenizer abstractions
• Default set of tokens
• Time construct abstraction

This project can be used as a base tool for creating a time parser for other languages.

HumanTimeParser.English

This is the project that contains the implementation of HumanTimeParser.Core for the English language.

Notable features:

• Relative time parsing
• Date parsing
• Time of day parsing
• Day of week parsing

Performance

The following benchmark was run on:

• AMD Ryzen 3 1200 (4 core)
• Dotnet 6.0.301
• Linux

Intensity	# of Tokens	Mean	Error	StdDev	Gen 0	Allocated
Toddler	1	2.101 us	0.0151 us	0.0141 us	0.0114	1192 B
Simple	2	2.562 us	0.0164 us	0.0146 us	0.0114	976 B
Intermediate	4	5.548 us	0.0245 us	0.0217 us	0.0229	1928 B
Stress Test	14	10.751 us	0.0475 us	0.0444 us	0.0458	3840 B

Other language implementations

None ;)