Parth Shastri cppio
cppio
/ asynctkmixin.py
Created
June 14, 2019 03:16
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| class AsyncTkMixin: | |
| def __init__(self, *args, **kwds): | |
| super().__init__(*args, **kwds) | |
| self._awaiting = [] | |
| self._await_loop() | |
| def _await_loop(self): | |
| for i in reversed(range(len(self._awaiting))): | |
| coroutine, queue = self._awaiting[i] |
cppio
/ debouncedentry.py
Created
June 18, 2019 02:06
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| from tkinter import ttk | |
| class DebouncedEntry(ttk.Entry): | |
| def __init__(self, master, delay, callback, validate=None): | |
| super().__init__(master, validate="key") | |
| self["validatecommand"] = self.register(self.validate), "%P" | |
| self.delay = delay | |
| self.callback = callback | |
| self.validate = validate |
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| struct stack { | |
| struct stack* next; | |
| void* data; | |
| }; | |
| void push(struct stack** stack, void* data) { | |
| struct stack* new = malloc(sizeof *new); | |
| new->next = *stack; | |
| new->data = data; | |
| *stack = new; |
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| { | |
| "base": ["s", "m", "kg", "A", "K", "mol", "cd"], | |
| "derived": { | |
| "rad": { | |
| "numerator": ["m"], | |
| "denominator": ["m"] | |
| }, | |
| "sr": { | |
| "numerator": ["m", "m"], | |
| "denominator": ["m", "m"] |
cppio
/ priority_queue.py
Created
December 29, 2019 23:23
Python priority queue (with priority updating) built on top of heapq
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| from heapq import heappush, heappop | |
| import itertools | |
| __all__ = ["PriorityQueue"] | |
| class PriorityQueue: | |
| sentinel = object() | |
| def __init__(self): |
cppio
/ skip_last.rs
Created
April 14, 2020 17:45
Simple snippet showing how to skip the last item in an iterator.
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| fn main() { | |
| let x = [0, 1, 2]; | |
| let y: Vec<_> = x | |
| .iter() | |
| .scan(None, |prev, i| Some(prev.replace(i))) | |
| .flatten() | |
| .collect(); | |
| println!("x = {:?}", x); // x = [0, 1, 2] |
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| #!/bin/bash | |
| shopt -s dotglob nullglob | |
| dest="$(pwd)" | |
| tempdir="$(mktemp -d)" | |
| git clone --depth 1 --no-checkout --filter=blob:none "${1%%@*}" "$tempdir" | |
| tag="$(tag=${1#*@}; repo="${1##*@*}"; repo="${repo:+HEAD}"; echo "${repo:-$tag}")" | |
| shift | |
| cd "$tempdir" | |
| git checkout "$tag" -- "$@" | |
| rm -rf .git |
cppio
/ unindent.js
Last active
May 11, 2020 20:01
A simple JavaScript function/tag function that removes extra levels of indentation. Useful when embedding code in a template literal that is further indented.
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| const unindent = (template, ...substitutions) => { | |
| const string = String.raw({ raw: template.raw || [template] }, ...substitutions).trimEnd().replace(/^\s*\n/, ''); | |
| const indent = (string.match(/^[ \t]*(?=\S)/gm) || []).map(i => i.length).reduce((a, b) => Math.min(a, b)); | |
| return string.replace(new RegExp(String.raw`^[ \t]{${indent}}`, 'gm'), ''); | |
| }; |
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| \[ | |
| x=\sqrt[3]{-\frac{b^3}{27a^3}+\frac{bc}{6a^2}-\frac{d}{2a}+\sqrt{\left(-\frac{b^3}{27a^3}+\frac{bc}{6a^2}-\frac{d}{2a}\right)^2+\left(\frac{c}{3a}-\frac{b^2}{9a^2}\right)^3}}+\sqrt[3]{-\frac{b^3}{27a^3}+\frac{bc}{6a^2}-\frac{d}{2a}-\sqrt{\left(-\frac{b^3}{27a^3}+\frac{bc}{6a^2}-\frac{d}{2a}\right)^2+\left(\frac{c}{3a}-\frac{b^2}{9a^2}\right)^3}}-\frac{b}{3a} | |
| \] |
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| #!/usr/bin/env bash | |
| exec locate -b "\\$1" "${@:2}" |