mrnugget

# vim: set ft=ruby

cask_args appdir: '/Applications'
tap 'homebrew/cask'
brew 'mas'

brew 'git'
brew 'zsh'
brew 'make'

mrnugget

#lang racket

(define (make-grid rows columns)
  (build-vector rows (lambda (r) (make-vector columns 0))))

(define (rows grid) (vector-length grid))
(define (columns grid) (vector-length (vector-ref grid 0)))

(define (cell grid row column)
  (cond [(or (< row 0) (< column 0)) 0]

mrnugget

package main

import (
	"fmt"
	"io/ioutil"
	"os"
	"os/exec"
	"path/filepath"
	"plugin"

mrnugget

package main

import (
	"bytes"
	"fmt"

	"github.com/nelhage/gojit"
	"github.com/nelhage/gojit/amd64"
)

mrnugget

;; Taken from here: https://emacs.stackexchange.com/questions/34894/how-to-execute-a-command-on-the-selection-shell-command-on-region-in-evil-mode
(defun shell-command-on-region-and-select
    (start end command
           &optional output-buffer replace
           error-buffer display-error-buffer
           region-noncontiguous-p)
  "Wrapper for 'shell-command-on-region', re-selecting the output.

Useful when called with a selection, so it can be modified in-place"
  (interactive)

mrnugget

This is what I once wrote to a reader:

• Nand2Tetris book - http://www.nand2tetris.org/
• The paper "An Incremental Approach to Compiler Construction", by Abdulaziz Ghuloum. You can find a hosted PDF version of the paper and an implementation of its contents here: https://github.com/namin/inc\
• Jack Crenshaw's classic "LET'S BUILD A COMPILER" from 1988. Even though it's kinda dated (he's using Turbo Pascal), it's one of the great "let's roll our sleeves up and write some code" texts. Here is the PDF version: http://compilers.iecc.com/crenshaw/tutorfinal.pdf
• Then there are also the 4th and 5th chapters of Structure an Interpretation of Computer Programs (SICP), in which you'll build an interpreter and a kinda bytecode-compiler for a virtual register machine. It's a pretty abstract and seemingly alien affair (using a Lisp dialect to build a virtual register machine for a bytecode defined in Lisp, produced by a Lisp compiler, etc.), but it teaches the concepts behind the whole compiler and VM thing.

mrnugget

Fixing a Rails migration in a previous commit

Status Quo

We're sitting on a commit and a previous commit introduced a migration. The migration and the resulting db/structure.sql (or db/schema.rb) have been commited in <commit-to-be-fixed>.

Problem

mrnugget

package main

func AddTwo(input int) int {
	return input + 2
}

func AddFour(input int) int {
	return input + 4
}

mrnugget

diff --git src/monkey/ast/ast.go src/monkey/ast/ast.go
index fb30b05..70668a6 100644
--- src/monkey/ast/ast.go
+++ src/monkey/ast/ast.go
@@ -337,3 +337,28 @@ func (hl *HashLiteral) String() string {
 
 	return out.String()
 }
+
+type FatArrowFunction struct {

mrnugget

#!/usr/bin/env racket

#lang racket

(define (contains-heading? line)
  (regexp-match #rx"^#+" line))

(define (heading-level line)
  (length (regexp-match* #rx"#" line)))