[bmitc]

That's a cool library. I note that WolframAlpha handles this type of stuff readily. Does anyone ever bundle Wolfram products into theirs to handle natural language type things? I'm not immediately sure of the licensing framework, but it would seem nice to be able to do that.

Edit: It seems that WolframAlpha does have an HTTP API.

https://products.wolframalpha.com/api/documentation

I'm curious if anyone has used it. It costs but it could save an immense amount of time.

[andrepd]

Embedding wolframalpha is probably overkill, when all you need is simply a small arithmetic expression parser and to understand expressions like "next month" or "2 days ago", which even tools like GNU date support.

[throwaway2037]

Hat tip that you mention GNU date. I am surprised each time I use that feature and it manages to produce the date that I wanted.

[bmitc]

For dates, probably, but I was more curious about other natural language use cases.