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@stopachka
stopachka / risp-2.0.rs
Last active October 22, 2024 21:09
use std::collections::HashMap;
use std::fmt;
use std::io;
use std::num::ParseFloatError;
use std::rc::Rc;
/*
Types
*/
@msgodf
msgodf / condition-systems.md
Created December 15, 2015 08:23
Condition Systems in an Exceptional Language by Chris Houser

Condition Systems in an Exceptional Language by Chris Houser

I recently watched Chris Houser's talk from Clojure/conj 2015 on condition systems in Clojure. I enjoyed the subject, so I decided to write up the talk as a way of encouraging me to really understand it, and in the hope that it might help others understand it.

The last time I heard about Common Lisp's condition system was at a talk by Didier Verna at ACCU in Bristol in 2013 (slides here). It sounded really interesting, but I didn't understand it well enough.

tl;dr

Chris Houser talks about different ways of handling errors in Clojure. Based on examples from Peter Seibel's book, Practical Common Lisp, he describes condition systems, which are also known as resumable exceptions, or restarts.

@isaacabraham
isaacabraham / idiomaticjsonserialiser.fs
Created September 7, 2014 21:17
This JSON.Net converter handles F# discriminated unions with more "idiomatic" JSON than what is generated by the current version of JSON .NET. Option types and single case DUs are transparently handled, and tuple-style properties are used rather than array notation.
namespace Newtonsoft.Json.Converters
open Microsoft.FSharp.Reflection
open Newtonsoft.Json
open System
type IdiomaticDuConverter() =
inherit JsonConverter()
[<Literal>]
@goodwillcoding
goodwillcoding / gist:3808838
Created October 1, 2012 00:39
JSON Serializable SQLAlchemy Object
class JsonSerializableMixin(object):
def __json__(self, request):
"""
Converts all the properties of the object into a dict for use in json.
You can define the following in your class
_json_eager_load :
list of which child classes need to be eagerly loaded. This applies
to one-to-many relationships defined in SQLAlchemy classes.
@pjambet
pjambet / parameterize.js
Created September 12, 2012 22:30
Javascript implementation of Rails #parameterize method stolen from http://bit.ly/TUm5wK and quickly modified
var LATIN_MAP = {
'À': 'A', 'Á': 'A', 'Â': 'A', 'Ã': 'A', 'Ä': 'A', 'Å': 'A', 'Æ': 'AE', 'Ç':
'C', 'È': 'E', 'É': 'E', 'Ê': 'E', 'Ë': 'E', 'Ì': 'I', 'Í': 'I', 'Î': 'I',
'Ï': 'I', 'Ð': 'D', 'Ñ': 'N', 'Ò': 'O', 'Ó': 'O', 'Ô': 'O', 'Õ': 'O', 'Ö':
'O', 'Ő': 'O', 'Ø': 'O', 'Ù': 'U', 'Ú': 'U', 'Û': 'U', 'Ü': 'U', 'Ű': 'U',
'Ý': 'Y', 'Þ': 'TH', 'ß': 'ss', 'à':'a', 'á':'a', 'â': 'a', 'ã': 'a', 'ä':
'a', 'å': 'a', 'æ': 'ae', 'ç': 'c', 'è': 'e', 'é': 'e', 'ê': 'e', 'ë': 'e',
'ì': 'i', 'í': 'i', 'î': 'i', 'ï': 'i', 'ð': 'd', 'ñ': 'n', 'ò': 'o', 'ó':
'o', 'ô': 'o', 'õ': 'o', 'ö': 'o', 'ő': 'o', 'ø': 'o', 'ù': 'u', 'ú': 'u',
'û': 'u', 'ü': 'u', 'ű': 'u', 'ý': 'y', 'þ': 'th', 'ÿ': 'y'
@robgolding
robgolding / login_required.py
Created July 11, 2012 19:25
Django Class-Based View Mixins: Part 1
class LoginRequiredMixin(object):
"""
View mixin which requires that the user is authenticated.
"""
@method_decorator(login_required)
def dispatch(self, request, *args, **kwargs):
return super(LoginRequiredMixin, self).dispatch(
self, request, *args, **kwargs)
@burke
burke / 0-readme.md
Created January 27, 2012 13:44 — forked from funny-falcon/cumulative_performance.patch
ruby-1.9.3-p327 cumulative performance patch for rbenv

ruby-1.9.3-p327 cumulative performance patch for rbenv

This installs a patched ruby 1.9.3-p327 with various performance improvements and a backported COW-friendly GC, all courtesy of funny-falcon.

Requirements

You will also need a C Compiler. If you're on Linux, you probably already have one or know how to install one. On OS X, you should install XCode, and brew install autoconf using homebrew.

@djpowell
djpowell / reload_templates.clj
Created November 26, 2011 23:15
Ring middleware for reloading enlive templates
(ns net.djpowell.reload-templates
(:require [clojure.java.io :as io]))
;; Ring middleware that reloads namespaces when associated templates
;; change. Assumes a hypothetical version of enlive that stores the
;; template path against the deftemplate/defsnippet var under the key:
;; :net.cgrand.enlive-html/template
(defn ^:private ns-templates
"Get the list of templates and snippets associated with a given namespace"
@mig
mig / init.el
Created January 18, 2011 21:00
Simple Emacs 24 configuration for Rails development
;; emacs configuration
(push "/usr/local/bin" exec-path)
(add-to-list 'load-path "~/.emacs.d")
(setq make-backup-files nil)
(setq auto-save-default nil)
(setq-default tab-width 2)
(setq-default indent-tabs-mode nil)
(setq inhibit-startup-message t)
@bhelx
bhelx / base_62_converter.py
Created January 13, 2011 20:35
#!/usr/bin/env python
#
# Converts any integer into a base [BASE] number. I have chosen 62
# as it is meant to represent the integers using all the alphanumeric
# characters, [no special characters] = {0..9}, {A..Z}, {a..z}
#
# I plan on using this to shorten the representation of possibly long ids,
# a la url shortenters
#