# Awesome Falsehood [![Awesome](https://cdn.rawgit.com/sindresorhus/awesome/d7305f38d29fed78fa85652e3a63e154dd8e8829/media/badge.svg)](https://github.com/sindresorhus/awesome) A curated list of awesome falsehoods programmers believe in. > The logic of the world is prior to all truth and falsehood. > - Ludwig Wittgenstein ## Contents - [Foreword](#foreword) - [Meta](#meta) - [Business](#business) - [Dates and Time](#dates-and-time) - [Emails](#emails) - [Geography](#geography) - [Human Identity](#human-identity) - [Networks](#networks) - [Phone Numbers](#phone-numbers) - [Postal Addresses](#postal-addresses) - [Software Engineering](#software-engineering) - [Contributing](#contributing) - [Good Candidates](#good-candidates) - [*Falsehood* Articles](#falsehood-articles) - [Libraries](#libraries) - [Data Structures](#data-structures) - [License](#license) ## Foreword *Falsehood* articles are a form of commentary on a particular subject, and are appreciated by the developer community at large for their effectiveness and terseness. They're a convenient written form to approach an unfamiliar domain by dispelling myths, point out common pitfalls, show inconsistencies and subtleties. In a sense, *Falsehood* articles are a suite of wordy unit-tests covering extensive edge-cases provided by real-world usage. ## Meta - [Falsehoods Programmers Believe](http://spaceninja.com/2015/12/08/falsehoods-programmers-believe/) - A brief list of common falsehoods. A great overview and quick introduction into the world of falsehoods. ## Business - [Falsehoods About Online Shopping](http://wiesmann.codiferes.net/wordpress/?p=22201) - Covers prices, currencies and inventory. - [Falsehoods About Prices](https://gist.github.com/rgs/6509585) - Covers currencies, amounts and localization. - [`tax`](https://github.com/commerceguys/tax) - A PHP 5.4+ tax management library. ## Dates and Time - [Falsehoods About Time](http://infiniteundo.com/post/25326999628/falsehoods-programmers-believe-about-time) - Seminal article on dates and time. - [More Falsehoods About Time](http://infiniteundo.com/post/25509354022/more-falsehoods-programmers-believe-about-time) - Part. 2 of the article above. - [Falsehoods About Time and Time Zones](http://www.creativedeletion.com/2015/01/28/falsehoods-programmers-date-time-zones.html) - Another takes on time-related falsehoods, with an emphasis on time zones. - [Critique of Falsehoods About Time](https://gist.github.com/thanatos/eee17100476a336a711e) - Takes on the first article above and provides an explanation of each falsehood, with more context and external resources. - [Time Zone Database](https://www.iana.org/time-zones) - Code and data that represent the history of local time for many representative locations around the globe. - [The Long, Painful History of Time](http://naggum.no/lugm-time.html) - Most of the idiosyncracies in time keeping can find an explanation in history. - [You Advocate a Calendar Reform](https://qntm.org/calendar) - Your idea will not work. This article tells you why. - [So You Want to Abolish Time Zones](https://qntm.org/abolish) – Abolishing timezones may sound like a good idea, but there are quite a few complications that make it not quite so. ## Emails - [I Knew How to Validate an Email Address Until I Read the RFC](http://haacked.com/archive/2007/08/21/i-knew-how-to-validate-an-email-address-until-i.aspx/) - Provides intricates examples that are unsuspected valid emails according the RFC-822. ## Geography - [Falsehood About Geography](http://wiesmann.codiferes.net/wordpress/?p=15187) - Takes on places, their names and locations. - [Falsehoods About Maps](http://www.atlefren.net/post/2014/09/falsehoods-programmers-believe-about-maps/) - Covers coordinates, projection and GIS. ## Human Identity - [Falsehoods About Names](https://www.kalzumeus.com/2010/06/17/falsehoods-programmers-believe-about-names/) - The article that started it all. - [Falsehoods About Gender](https://gist.github.com/garbados/f82604ea639e0e47bf44) - Gender is part of human identity and has its own subtleties. - [Gay Marriage: The Database Engineering Perspective](https://qntm.org/gay) - How to store a marriage in a database while addressing most of the falsehoods about gender, naming and relationships. - [XKCD #327: Exploits of a Mom](https://xkcd.com/327/) - Funny take on how implementation of a falsehood might lead to security holes. - [Hello, I’m Mr. Null. My Name Makes Me Invisible to Computers](https://www.wired.com/2015/11/null/) - Real-life example on how implemented falsehood has negative impact on someone's life. - [HL7 v3 RIM](http://www.hl7.org/implement/standards/product_brief.cfm?product_id=186) - A flexible data model for representing human names. - [Apple iOS `NSPersonNameComponentsFormatter`](https://developer.apple.com/library/ios/documentation/Miscellaneous/Reference/NSPersonNameComponentsFormatter_Class/index.html) - Localized representations of the components of a person’s name. ## Networks - [Falsehoods About Networks](http://blog.erratasec.com/2012/06/falsehoods-programmers-believe-about.html) - Covers TCP, DHCP, DNS, VLANs and IPv4/v6. ## Phone Numbers - [Falsehoods About Phone Numbers](https://github.com/googlei18n/libphonenumber/blob/master/FALSEHOODS.md) - Covers phone numbers, their representation and meaning. - [`libphonenumber`](https://github.com/googlei18n/libphonenumber) - Google's common Java, C++ and JavaScript library for parsing, formatting, and validating international phone numbers. Also available for [C#](https://github.com/erezak/libphonenumber-csharp), [Objective-C](https://github.com/iziz/libPhoneNumber-iOS), [Python](https://github.com/daviddrysdale/python-phonenumbers), [Ruby](https://github.com/sstephenson/global_phone) and [PHP](https://github.com/giggsey/libphonenumber-for-php). ## Postal Addresses - [Falsehoods About Addresses](https://www.mjt.me.uk/posts/falsehoods-programmers-believe-about-addresses/) - Covers streets, postal codes, buildings, cities and countries. - [Letter Delivered Despite No Name, No Address](https://twitter.com/loriskumo/status/735851511331356672) - Ultimate falsehood about postal addresses: you do not need one. - [`libaddressinput`](https://github.com/googlei18n/libaddressinput) - Google's common C++ and Java library for parsing, formatting, and validating international postal addresses. - [`addressing`](https://github.com/commerceguys/addressing) - A PHP 5.4+ addressing library, powered by Google's dataset. - [`postal-address`](https://github.com/scaleway/postal-address) - Python module to parse, normalize and render postal addresses. ## Software Engineering - [Falsehoods About Versions](https://github.com/xenoterracide/falsehoods/blob/master/versions.md) - Attributing an identity to a software release might be harder than thought. - [Falsehoods About Build Systems](http://pozorvlak.livejournal.com/174763.html) - Building software is hard. Building software that builds software is harder. - [Big List of Naughty Strings](https://github.com/minimaxir/big-list-of-naughty-strings) - Challenge your assumptions about strings. ## Contributing Your contributions are always welcome! Please take a look at the [contribution guidelines](CONTRIBUTING.md) first. ## Good Candidates Here is a non-restrictive list of items which are good candidates for inclusion in this awesome list. ### *Falsehood* Articles Articles following the *falsehood* scheme are prime candidates for inclusion in this awesome list. These articles starts with the hypothesis that developers have a naive, simple view of the subject at hand. Then proceed to list a set of candid assumptions that might be held by such programmers. Each one is intentionally false, and sometimes illustrated by a counter-example. A list of falsehood is crafted as a progression that is designed to refine concepts. Having read the whole list of falsehood, the reader should possess a global, if not complete, overview of the domain being targeted by the article, including most, if not all, its pitfalls, edges-cases and inconsistencies. In the worst case, these articles might provoke an emotional reaction and cause flipping table. `(╯°□°)╯︵ ┻━┻` ### Libraries When possible, we provide a list of programming libraries or modules that may solve, or try to, the complexities and idiosyncrasies pointed by the *falsehood* articles above. So we can put back tables in place. `┬─┬ ノ( ゜-゜ノ)` ### Data Structures Data models and structures generic enough to cover and address most of the falsehoods are also welcome in this page. ## License [![CC0](http://mirrors.creativecommons.org/presskit/buttons/88x31/svg/cc-zero.svg)](https://creativecommons.org/publicdomain/zero/1.0/) Content of this repository is licensed under the [Creative Commons CC0 license](https://creativecommons.org/publicdomain/zero/1.0/). To the extent possible under law, [Kevin Deldycke](http://kevin.deldycke.com) has waived all copyright and related or neighboring rights to this work.