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@p4bl0-
p4bl0- / 00_readme.md
Last active October 12, 2023 09:09
A complete compiler for a simple language (in less than 150 LoC)

This project is a tiny compiler for a very simple language consisting of boolean expression.

The language has two constants: 1 for true and 0 for false, and 4 logic gates: ! (not), & (and), | (or), and ^ (xor).

It can also use parentheses to manage priorities.

Here is its grammar in BNF format:

expr ::= "0" | "1"

with
dau as (
-- This part of the query can be pretty much anything.
-- The only requirement is that it have three columns:
-- dt, user_id, inc_amt
-- Where dt is a date and user_id is some unique identifier for a user.
-- Each dt-user_id pair should be unique in this table.
-- inc_amt represents the amount of value that this user created on dt.
-- The most common case is
-- inc_amt = incremental revenue from the user on dt
@rainyear
rainyear / handy.py
Created July 3, 2015 10:09
Hand posture detection with OpenCV.
#!/usr/bin/env python
import cv2
import numpy as np
def main():
cap = cv2.VideoCapture(0)
while(cap.isOpened()):
ret, img = cap.read()
skinMask = HSVBin(img)
#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
pip install networkx distance pattern
In Flipboard's article[1], they kindly divulge their interpretation
of the summarization technique called LexRank[2].
@rodricios
rodricios / summarize.py
Last active November 18, 2020 17:21
Flipboard's summarization algorithm, sort of
#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
pip install networkx distance pattern
In Flipboard's article[1], they kindly divulge their interpretation
of the summarization technique called LexRank[2].
@rcarmo
rcarmo / extract.hy
Last active August 29, 2015 14:11
Readability-like HTML extraction in Hy
; originally posted on https://github.com/rodricios/eatiht/issues/2#issuecomment-67769343
(import
[collections [Counter]]
[cookielib [CookieJar]]
[lxml.etree [HTML tostring]]
[urllib2 [build-opener HTTPCookieProcessor]])
(def *min-length* 20)
(def *text-xpath* (+ "//body//*[not(self::script or self::style or self::i or self::b or self::strong or self::span or self::a)]/text()[string-length(normalize-space()) > " (str *min-length*) "]/.."))
@mildred
mildred / download.sh
Created October 20, 2014 10:03
Download from archive.org Wayback Machine
#!/bin/bash
url=http://redefininggod.com
webarchive=https://web.archive.org
wget="wget -e robots=off -nv"
tab="$(printf '\t')"
additional_url=url.list
# Construct listing.txt from url.list
# The list of archived pages, including some wildcard url
@kastnerkyle
kastnerkyle / gmmhmm.py
Last active March 9, 2023 06:14
GMM-HMM (Hidden markov model with Gaussian mixture emissions) implementation for speech recognition and other uses
# (C) Kyle Kastner, June 2014
# License: BSD 3 clause
import scipy.stats as st
import numpy as np
class gmmhmm:
#This class converted with modifications from https://code.google.com/p/hmm-speech-recognition/source/browse/Word.m
def __init__(self, n_states):
self.n_states = n_states
@jamesyang124
jamesyang124 / ruby_meta.md
Last active April 5, 2024 10:50
Ruby meta programming

#!/bin/ruby --verion => 2.0.0-p353

Self

In Ruby, self is a special variable that always references the current object.

  • Inside class or module definition, self refer to the Class or Module object.
  • Inside instance method, self refer to future instance object.
  • Inside class method, self refer to the class.i
@kevin-smets
kevin-smets / iterm2-solarized.md
Last active July 22, 2024 22:13
iTerm2 + Oh My Zsh + Solarized color scheme + Source Code Pro Powerline + Font Awesome + [Powerlevel10k] - (macOS)

Default

Default

Powerlevel10k

Powerlevel10k