yyogo’s gists

yyogo / hexdump.py

Last active September 20, 2016 14:26

Hex dumper for Python (I really care about my hex dumps, okay?!)


	class HexDump(object):
	"""
	HexDump(data, width=16, groups=(2,4), prefix='')

	Dump hex.

	width - Number of bytes per dump line
	groups - How to group the bytes, i.e where to put spaces. Ex:
	(1,) - space after every byte

yyogo / bint.py

Last active September 22, 2016 14:31

Convert longs to / from bytes, mimicking behavior of Python 3.6 int.from/to_bytes



	def bytes2int(data, byteorder='little', signed=False):
	""" replicate int.from_bytes from python3 """
	if byteorder == 'little':
	data = reversed(data)
	elif byteorder != 'big':
	raise ValueError("byteorder must be either 'little' or 'big'")
	bl = bytearray(data)

yyogo / fzf-tmux-select.zsh

Created June 18, 2018 16:00

fzf completion widget for zsh which completes words from the currently displayed tmux panes


	__get_tmux_pane_contents() {
	local cmd='for pane in `tmux list-panes -F "#{pane_id}"`; do tmux capture-pane -p -t $pane; done'
	for word in `eval "$cmd"`; do
	if [ ${#word} -ge ${FZF_MIN_WORD_LENGTH:-4} ]; then
	echo "$word"
	fi
	done \| awk '{ print length, $0 }' \| sort -rn \| cut -d' ' -f2- \| uniq
	}

yyogo / cleanup.sh

Created October 11, 2018 12:46

Cleanup stuff

yyogo / derp.py

Created October 3, 2019 15:34

	""" ASN1 DER/BER symmetric parser/encoder. """
	import enum

	def decode_varint(bytearr):
	value = bytearr[0] & 0x7f
	while bytearr.pop(0) & 0x80:
	value = (value << 7) \| (bytearr[0] & 0x7f)
	return value

	def encode_varint(n):

yyogo / f_strings.py

Last active October 28, 2019 15:55

""backported"" string-interpolation for Python 2/3.5- (What do you mean, 'why'? Why not?)

yyogo / to_array.rs

Created November 20, 2020 19:33

rust traits for converting iterators to arrays with no extra allocations

	#![feature(min_const_generics,maybe_uninit_extra)]

	// VERY UNTESTED AND NOT REVIEWED
	// THIS CODE USES UNSAFE RUST AND COULD LEAD TO UB

	use std::mem::{self, MaybeUninit};

	#[derive(Clone,Debug)]
	enum ToArrayError {
	TooShort(usize, usize),

yyogo / take_while_inclusive.rs

Last active December 27, 2020 20:13

rust iterators: take_while_inclusive() - take_while including the first non-matching element


	enum TakeWhileInclusive<I, P> {
	Taking(I, P),
	Done,
	}

	impl<I, P> Iterator for TakeWhileInclusive<I, P>
	where
	P: FnMut(&I::Item) -> bool,
	I: Iterator,

yyogo / keybase.md

Created January 12, 2021 16:00

keybase identity proof

I hereby claim:

To claim this, I am signing this object:

yyogo / spliterr.sh

Last active April 8, 2025 20:49

Split stderr from comand to separate tmux pane

	#!/bin/bash
	set -m

	showhelp() {
	echo "Usage: $0 [-ohvrc] <command>"
	echo "Pipes stderr from command to a new tmux pane."
	echo " -h \| -v split horizontally or vertically (default vertically)"
	echo " -r send stdout to pane instead of stderr"
	echo " -o send both stdout and stderr to new panes"
	echo " -c close pane automatically after program terminates"

Jonathan yyogo