kirel

Preface

This is an overview over the inner workings of Detexify. Extended knowlege in pattern recognition or machine learning is not necessary as I will explain some basics but understanding of linear algebra will definitely help. I have to note that I am not an expert, either. I more or less stumbled into this because of this project. Experts in this field may safely skip the first section.

What's the problem?

hrldcpr

One-line Tree in Python

Using Python's built-in defaultdict we can easily define a tree data structure:

def tree(): return defaultdict(tree)

That's it!

brunobraga

#!/usr/bin/python
###############################################################################
#
# file:     gmail-count
#
# Purpose:  generates a string value representing the Gmail unread email count.
#
# Usage:    pipe the i3status with this script (see i3status manpage)
#           or use conky.
#

nzjrs

class ConnectPythonLoggingToROS(logging.Handler):

    MAP = {
        logging.DEBUG:rospy.logdebug,
        logging.INFO:rospy.loginfo,
        logging.WARNING:rospy.logwarn,
        logging.ERROR:rospy.logerr,
        logging.CRITICAL:rospy.logfatal
    }

pcholakov

#!/bin/bash

# Gitolite [https://github.com/sitaramc/gitolite]
# Jenkins Git Plugin [https://wiki.jenkins-ci.org/display/JENKINS/Git+Plugin] 

# GL_REPO will contain the short relative path of the repository being pushed to, e.g. "projects/component-1", so transform it into the Git URL format that your Jenkins build jobs follow:
[email protected]:$GL_REPO

# Jenkins Git plugin notification URL -- update host as appropriate:
TRIGGER_URL=http://jenkins.example.com:8080/git/notifyCommit?url=$REPOSITORY_URL

joostrijneveld

# Heavily depends on:
# libqrencode (fukuchi.org/works/qrencode/)
# paperkey (jabberwocky.com/software/paperkey/)
# zbar (zbar.sourceforge.net)

# Producing the QR codes:
# Split over 4 codes to ensure the data per image is not too large.
gpg --export-secret-key KEYIDGOESHERE | paperkey --output-type raw | base64 > temp
split temp -n 4 IMG
for f in IMG*; do cat $f | qrencode -o $f.png; done

maxtruxa

Antonym List

Note: The table headings (positive/negative) are not necessarily meaningful.

Positive	Negative
acquire	release
add	remove (e.g. an item), subtract (arithmetic)
advance	retreat
allocate	deallocate (correct), free (common)
allow	deny

karpathy

"""
Minimal character-level Vanilla RNN model. Written by Andrej Karpathy (@karpathy)
BSD License
"""
import numpy as np

# data I/O
data = open('input.txt', 'r').read() # should be simple plain text file
chars = list(set(data))
data_size, vocab_size = len(data), len(chars)

CMCDragonkai

History Data Structures

For stateful applications, there are 5 different ways of managing the history of state:

• No History - Living in the moment. - Examples: Any stateful application that doesn't discards all previous states upon mutation.
• Ad Hoc Snapshotting - Allows restoration to manually saved snapshots. - Examples: Memento Pattern.
• Singleton - Only remembers the previous snapshot, where undoing the undo is just another undo. - Examples: Xerox PARC Bravo.
• 1 Stack - Allows linear undo. - Examples: AtariWriter.
• 2 Stack - Allows linear undo and redo. - Examples: Browser History, Microsoft Word, Adobe Photoshop.

mjj2000

git describe --exact-match --tags 2> /dev/null || git rev-parse --short HEAD