Wilfred

;;; logstash-conf.el -- basic mode for editing logstash configuration

;; Copyright (C) 2014 Wilfred Hughes <me@wilfred.me.uk>
;;
;; Author: Wilfred Hughes <me@wilfred.me.uk>
;; Created: 21 October 2014
;; Version: 0.2

;;; Commentary:
;; `conf-mode' offers adequate highlighting for Logstash configuration

Wilfred

Macros Crash Course

Firstly, a macro is evaluated at compile-time, not runtime.

;; Define a function and macro that both
;; return the current time.
(defun get-current-time-fn ()
  (second (current-time)))

(defmacro get-current-time-mac ()

Wilfred

;; http://lists.gnu.org/archive/html/emacs-devel/2014-10/msg00962.html
;; eval this buffer and then start modifying the data in the table below.
;;
;; ------------
;; Alpha   | 50
;; Beta    | 35
;; Gamma   | 64
;; Delta   | 20
;; Epsilon | 80
;; 

Wilfred

So, I've played with Sourcegraph, and I love the concept. I love the idea of being able to explore usage of functions and jumping to the original version.

I'm a Python programmer who likes Django, so I chose render_to_response as a function to try. It's a function I've used plenty and it's pure-python, so I assume it must be indexed.

https://sourcegraph.com/search?q=render_to_response shows the django-nonrel fork, but not the official django sources.

Wilfred

#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <alloca.h>

void eval_program(char *program) {
    int program_len = strlen(program);
    int data_index = 0, instruction_index = 0;

Wilfred

trait Greet {
    fn say_hello(&self) -> ();
}

impl Greet for Iterator {
    fn say_hello(&self) {
        println!("hello from an iterator!");
    }
}

Wilfred

class DiningPhilosophers {
    public static void main(String[] args) {
	Fork[] forks = new Fork[5];
	for (int i=0; i<forks.length; i++) {
	    forks[i] = new Fork();
	}

	Philosopher p1 = new Philosopher(1,forks[0],forks[1]);
	Philosopher p2 = new Philosopher(2,forks[1],forks[2]);
	Philosopher p3 = new Philosopher(3,forks[2],forks[3]);

Wilfred

; don't show the tool bar, should use keyboard anyway
(if (fboundp 'tool-bar-mode) (tool-bar-mode -1))

; auctex stuff for latex editing
(load "auctex.el" nil t t)
(load "preview-latex.el" nil t t)

; auto-fill (linewrap) on by default
(setq-default auto-fill-function 'do-auto-fill)

Wilfred

<?php
//based on http://lists.w3.org/Archives/Public/www-validator/2007Jul/0208.html
$mime = 'text/html'; //fallback
// set xhtml mimetype if browser claims it accepts it:
if(!empty($_SERVER['HTTP_ACCEPT']) && stristr($_SERVER['HTTP_ACCEPT'],'application/xhtml+xml')) {
	$mime = 'application/xhtml+xml';
}
// or if it is the validator:
if (stristr($_SERVER["HTTP_USER_AGENT"],"W3C_Validator") OR stristr($_SERVER["HTTP_USER_AGENT"],"W3C_CSS_Validator") OR
stristr($_SERVER["HTTP_USER_AGENT"],"WDG_Validator")) {

Wilfred

(* church booleans *)
fun True x y = x;
fun False x y = y;

(*conditionals*)
fun If b x y = b x y;
fun Or b1 b2 x y	= b1 x (b2 x y);
fun Xor b1 b2 x y	= b1 (b2 y x) (b2 x y);
fun And b1 b2 x y	= b1 (b2 x y) y;
fun Nand b1 b2 x y	= b1 (b2 y x) x;