rjloura

var ipv4_to_long = function(dots) {return ((((((+dots[0])*256)+(+dots[1]))*256)+(+dots[2]))*256)+(+dots[3]);};

/*
 * For IPv6 the "calculation" is easier because the max of each halfword is 'ffff', but we cant be as accurate because
 * the value will usually be > Number.MAX_SAFE_INTEGER.  So the function below will only give you the answer in SI notation.
 */
var ipv6_to_long = function(v6addr) {parseInt(addr.replace(/:/g, ''), 16);};

rjloura

# TODO: Make this work with compressed format
def ipv6_to_decimal(addr):
  return (int(addr.replace(':', ''), 16))

rjloura

Using the JSONEncoder from: https://github.com/bradjasper/django-jsonfield/blob/master/jsonfield/encoder.py

def get_context_data(self, **kwargs):
    ctx = super().get_context_data(**kwargs)
    tl = Model.objects.filter(year=self.kwargs['year']).values()
    ctx['jsonstring'] = json.dumps(tl, cls=JSONEncoder)
    return ctx

Then in the template:
    var json_data = {{ jsonstring|safe }};

rjloura

#!/bin/bash

# Will need to install 'libfaac0'

# '-strict -2' to allow experimental
# set '-preset veryslow' for better compression
# set '-crf' lower to get better quality (default is 23, I think)
ffmpeg -i input.avi -strict -2 -c:v libx264 -crf 19 -preset slow -c:a aac -b:a 192k -ac 2 out.mp4

rjloura

Keybase proof

I hereby claim:

• I am rjloura on github.
• I am rjloura (https://keybase.io/rjloura) on keybase.
• I have a public key whose fingerprint is 1C91 E340 FC48 C37C BCEE A2AE 997E 6BF0 FAEB CE04

To claim this, I am signing this object:

rjloura

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

=
This message has been signed by keybase.io/rjloura.  The signature can be
verfified at https://keybase.io/verify.
=

Encryption can be easy these days, and Facebook is anything but private.
Please contact me instead on these more secure services (in order of preference):

rjloura

/* Straight copy from https://stackoverflow.com/questions/4340227/sort-mixed-alpha-numeric-array */

/* Note that the ^ in [^xyz] creates a negated character set, and does not match the beginning of the line. */ 
var reA = /[^a-zA-Z]/g;
var reN = /[^0-9]/g;
function sortAlphaNum(a,b) {
    var aA = a.replace(reA, "");
    var bA = b.replace(reA, "");
    if(aA === bA) {
        var aN = parseInt(a.replace(reN, ""), 10);

rjloura

# Build cscope xref for Golang.  Works well for "Find this C symbol", but not very well for definitions.

# Assuming you're in the project Root:

#Find the files
find . -name '*.go' > cscope.files

#Build the xref
cscope -b -k

rjloura

#!/usr/bin/bash -x
#
# Creating a COAL on VirtualBox. (Still WIP)
#
# This guide assumes you've run "make coal" in your sdc-headnode workspace,
# and copied over the files below from the VMWARE directory to your VBDIR:
# 	zpool.vmdk
#	  4gb.img
#  	USB-Headnode.vmdk
#

rjloura

My chromebook doesn't have a caps lock key, it has a "search" key. When running crouton xfce4 is unaware of this key in the keybaord mappings GUI. This is how I ended up mapping the search/capslock key to escape.

1. Run xev(1)
2. Strike the capslock (aka search, or super_L key) and ook for entries like the following:

KeyPress event, serial 28, synthetic NO, window 0x2600001,
    root 0xd3, subw 0x0, time 16308538, (449,411), root:(1043,703),
    state 0x0, keycode 133 (keysym 0xff1b, Escape), same_screen YES,
    XKeysymToKeycode returns keycode: 9
 XLookupString gives 1 bytes: (1b)