ataggart

; Released under the Apache License, Version 2.0
; http://www.apache.org/licenses/LICENSE-2.0.html

(defmacro try-let
  "A combination of try and let such that exceptions thrown in the binding or
   body can be handled by catch clauses in the body, and all bindings are
   available to the catch and finally clauses. If an exception is thrown while
   evaluating a binding value, it and all subsequent binding values will be nil.

   Example:

rpl

(require 'iimage)
(autoload 'iimage-mode "iimage" "Support Inline image minor mode." t)
(autoload 'turn-on-iimage-mode "iimage" "Turn on Inline image minor mode." t)
(add-to-list 'iimage-mode-image-regex-alist '("@startuml\s+\\(.+\\)" . 1))

;; Rendering plantuml
(defun plantuml-render-buffer ()
  (interactive)
  (message "PLANTUML Start rendering")
  (shell-command (concat "java -jar ~/Downloads/plantuml.jar " 

chrisroos

Every so often I have to restore my gpg keys and I'm never sure how best to do it. So, I've spent some time playing around with the various ways to export/import (backup/restore) keys.

Method 1

Backup the public and secret keyrings and trust database

cp ~/.gnupg/pubring.gpg /path/to/backups/
cp ~/.gnupg/secring.gpg /path/to/backups/
cp ~/.gnupg/trustdb.gpg /path/to/backups/

or, instead of backing up trustdb...

samaaron

(defn mk-tmp-dir!
  "Creates a unique temporary directory on the filesystem. Typically in /tmp on
  *NIX systems. Returns a File object pointing to the new directory. Raises an
  exception if the directory couldn't be created after 10000 tries."
  []
  (let [base-dir (file (System/getProperty "java.io.tmpdir"))
        base-name (str (System/currentTimeMillis) "-" (long (rand 1000000000)) "-")
        tmp-base (mk-path base-dir base-name)
        max-attempts 10000]
    (loop [num-attempts 1]

drj42

Org-mode Org-mode Reference Card

Org mode reference card

Created from the plain text reference card on orgmode.org Download this file, and open it in Emacs org-mode!

fogus

(ns pom2proj
  (:require [clojure.xml :as xml]
            [clojure.zip :as zip]
            [clojure.java.io :as io]
            [clojure.data.zip.xml :as zx])
  (:use [clojure.pprint :only [pprint]]))

(defn- text-attrs
  [loc ks]
  (map (fn [k]

alandipert

ClojureScript macros: kinda, sorta, not really.

ClojureScript does not have a standalone macro system. To write ClojureScript macros, one must write them in Clojure and then refer to them in ClojureScript code. This situation is workable, but at a minimum it forces one to keep ClojureScript code and the macros it invokes in separate files. I miss the locality of regular Clojure macros, so I wrote something called maptemplate that gives me back some of what I miss. The technique may be useful in other scenarios.

Problem

Suppose you're wrapping functionality in another namespace or package so that you can have your own namespace of identically named but otherwise decorated functions:

ClojureScript:

ssokolow

#!/bin/sh
#
# Simple XDG Install Script for Linux Games
#
# Features:
# - Communicates with the desktop via the xdg-utils vendor integration scripts.
#   (No need to upgrade if the implementation details change.)
# - Icons are resolved via the desktop theming system, granting theme
#   developers the ability to provide customized versions which preserve the
#   overall system aesthetic.

scttnlsn

(defn debounce [in ms]
  (let [out (chan)]
    (go-loop [last-val nil]
      (let [val (if (nil? last-val) (<! in) last-val)
            timer (timeout ms)
            [new-val ch] (alts! [in timer])]
        (condp = ch
          timer (do (>! out val) (recur nil))
          in (recur new-val))))
    out))

chrisbanes

/*
 * Copyright 2014 Chris Banes
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software