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fun isEmailValid(email: String): Boolean { | |
return Pattern.compile( | |
"^(([\\w-]+\\.)+[\\w-]+|([a-zA-Z]|[\\w-]{2,}))@" | |
+ "((([0-1]?[0-9]{1,2}|25[0-5]|2[0-4][0-9])\\.([0-1]?" | |
+ "[0-9]{1,2}|25[0-5]|2[0-4][0-9])\\." | |
+ "([0-1]?[0-9]{1,2}|25[0-5]|2[0-4][0-9])\\.([0-1]?" | |
+ "[0-9]{1,2}|25[0-5]|2[0-4][0-9]))|" | |
+ "([a-zA-Z]+[\\w-]+\\.)+[a-zA-Z]{2,4})$" | |
).matcher(email).matches() | |
} |
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library(data.table) | |
?`[.data.table` | |
DT <- data.table(x=rep(c("b","a","c"),each=3), y=c(1,3,6), v=1:9) | |
X <- data.table(x=c("c","b"), v=8:7, foo=c(4,2)) | |
colnames(DT) | |
# [1] "x" "y" "v" |
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# | |
# CCS811_RPi | |
# | |
# Petr Lukas | |
# July, 11 2017 | |
# | |
# Version 1.0 | |
import struct, array, time, io, fcntl |
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To make Pageant automatically run and load keys at startup: | |
- Find the location of pageant.exe | |
- Windows key + R to open the 'run' dialog box | |
- Type: 'shell:startup' in the dialog box | |
- Create a shortcut to the pageant.exe and put into this startup folder. |
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import requests | |
import sys | |
import json | |
def waybackurls(host, with_subs): | |
if with_subs: | |
url = 'http://web.archive.org/cdx/search/cdx?url=*.%s/*&output=json&fl=original&collapse=urlkey' % host | |
else: | |
url = 'http://web.archive.org/cdx/search/cdx?url=%s/*&output=json&fl=original&collapse=urlkey' % host |
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#!/usr/bin/env python3 | |
import http.client | |
import json | |
connection = http.client.HTTPConnection('localhost', port=5000) | |
headers = {'Content-type': 'application/json'} | |
connection.request('GET', '/set/foo?value=474', headers=headers) | |
response = connection.getresponse().read() |
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# need to 'pip install grequests' | |
import grequests | |
from html.parser import HTMLParser | |
class FetchTitleTag(HTMLParser): | |
def __init__(self): | |
HTMLParser.__init__(self) | |
self.inTitle = False | |
def handle_starttag(self, tag, attrs): | |
if tag == 'title': |
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#!/bin/bash | |
sudo apt-get install apt-transport-https ca-certificates -y | |
sudo apt-key adv --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys 58118E89F3A912897C070ADBF76221572C52609D | |
sudo rm -f /etc/apt/sources.list.d/docker.list | |
sudo add-apt-repository \ | |
"deb [arch=amd64] https://download.docker.com/linux/ubuntu \ | |
$(lsb_release -u -cs) \ | |
stable" | |
sudo apt-get update | |
sudo apt-get purge lxc-docker |
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## I'm working on a project using Flask to access a database and then | |
## pass on query data to a client where the data will be graphed | |
## in the browser. | |
## I wanted to enable users to retrieve the graph data | |
## in a csv file after clicking a button on the client. | |
## This is a generalized version of how I did it: | |
# imports other than Flask | |
import csv | |
from sqlalchemy import create_engine |
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## At the get-together of the AGC developers celebrating the 40th anniversary | |
## of the first moonwalk, Don Eyles (one of the authors of this routine along | |
## with Peter Adler) has related to us a little interesting history behind the | |
## naming of the routine. | |
## | |
## It traces back to 1965 and the Los Angeles riots, and was inspired | |
## by disc jockey extraordinaire and radio station owner Magnificent Montague. | |
## Magnificent Montague used the phrase "Burn, baby! BURN!" when spinning the | |
## hottest new records. Magnificent Montague was the charismatic voice of | |
## soul music in Chicago, New York, and Los Angeles from the mid-1950s to |