fastnomicon

A python library for fast parser used in naoTimes bot.

Requirements

• Python 3.10+
• Rust 1.80.0+

Functions

• parse_timestring
• parse_timestring_as_timedelta

A quick an easy timestring parsing, easily convert text like 1h30m into a proper timedelta object.

from fastnomicon import parse_timestring_as_timedelta

t_delta = parse_timestring_as_timedelta("1h30m")  # or you can also write it with space
print(t_delta)  # -> 1:30:00

The standard parse_timestring will be a custom class called TimeTuple which contains the stack information about each timestring (e.g. 1h30m will be [TimeTuple(time=1, scale=Hours), TimeTuple(time=30, scale=Minutes)]).

• execute_math_expr

A quick and easy way to parse complex mathematical expression using Shunting-yard algorithm.

from fastnomicon import execute_math_expr

result = execute_math_expr("6/2*(1+2)")  # or you can also write it with space
print(result)  # -> 9.0

The following function are supported in the expression, extending the standard PEMDAS expression:

• abs(x) — Absolute number of x
• atan2(x, y) — 2-argument arctangent
• cos(x) — Cosine
• log(x) — Logarithmic 10
• max(x, y, z, ...) — Largest number, can be repeated
• min(x, y, z, ...) — Smallest number, can be repeated
• nCr(x, y) — Combination (order not important)
• nMCr(x, y) — Multi combination
• nMPr(x, y) — Power of number (order not important)
• nPr(x, y) — Permutation
• rand(x) — Random number multiplied by x
• sin(x) — Sine
• normal(mu, sigma) — Normal distribution
• uniform(mu, sigma) — Uniform distribution
• lognormal(mu, sigma) — Log-normal distribution

We also provide the following approximation constants:

• pi — 3.141592653589793, Archimedes' constant (π)
• tau — 6.283185307179586, The full circle constant (τ)
• e — 2.718281828459045, The Euler's number constant (e)

License

The fastnomicon crate and python bindings are licensed under the MPL 2.0 license.