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Mathias Lafeldt mlafeldt

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mlafeldt / parse_yaml.py
Created October 13, 2011 15:44
[Python] Parse and pretty-print YAML
#!/usr/bin/env python
import sys
import yaml
import pprint
filename = sys.argv[1]
y = yaml.safe_load(open(filename, 'r'))
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mlafeldt / sh2py.sh
Created January 9, 2012 15:09
Convert shell script variables to python
env -i dash -c '. ./vars.sh; set' | sed -e "/^[a-zA-Z_][a-zA-Z0-9_]*='.*'$/"\!d > vars.py
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mlafeldt / verbose.sh
Created January 16, 2012 11:47
[Shell] --verbose mode based on redirections (avoids if/else code cluttering)
#!/bin/sh
verbose=
case "$1" in
-v|--v|--ve|--ver|--verb|--verbo|--verbos|--verbose)
verbose=1
shift ;;
esac
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mlafeldt / results.txt
Created January 23, 2012 15:04
[Shell] Simple performance test for POSIX-compliant shells
$ time env -i bash shell-perf.sh
Forking 1000 bash subshells....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
@mlafeldt
mlafeldt / index.html
Created March 7, 2012 22:01
DocumentUp template for gh-pages
<!DOCTYPE html>
<html>
<head>
<title></title>
<script type="text/javascript" src="http://cdnjs.cloudflare.com/ajax/libs/documentup/latest.min.js"></script>
<script type="text/javascript">
DocumentUp.document({
repo: "mlafeldt/PROJECT",
travis: true,
twitter: [ "mlafeldt" ]
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mlafeldt / macro.c
Created March 20, 2012 10:18
[C] ':-!!'
/* From http://stackoverflow.com/questions/9229601/what-is-it-in-c-code */
/* Force a compilation error if condition is true, but also produce a
result (of value 0 and type size_t), so the expression can be used
e.g. in a structure initializer (or where-ever else comma expressions
aren't permitted). */
#define BUILD_BUG_ON_ZERO(e) (sizeof(struct { int:-!!(e); }))
#define BUILD_BUG_ON_NULL(e) ((void *)sizeof(struct { int:-!!(e); }))
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mlafeldt / goto.py
Created March 20, 2012 10:28
[Python] goto
# From http://stackoverflow.com/questions/6959360/goto-in-python
@goto
def test1(n):
s = 0
label .myLoop
if n <= 0:
return s
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mlafeldt / dups.pl
Created April 1, 2012 20:07
3 scripts to improve your writing (http://matt.might.net/articles/shell-scripts-for-passive-voice-weasel-words-duplicates/)
#!/usr/bin/env perl
# Finds duplicate adjacent words.
use strict ;
my $DupCount = 0 ;
if (!@ARGV) {
print "usage: dups <file> ...\n" ;
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mlafeldt / osx.txt
Created April 24, 2012 08:06
Vagrant locales
vagrant@lucid32:~$ locale
locale: Cannot set LC_CTYPE to default locale: No such file or directory
locale: Cannot set LC_ALL to default locale: No such file or directory
LANG=en_US
LC_CTYPE=UTF-8
LC_NUMERIC="en_US"
LC_TIME="en_US"
LC_COLLATE="en_US"
LC_MONETARY="en_US"
LC_MESSAGES="en_US"
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mlafeldt / hash.sh
Created May 4, 2012 10:31
[Shell] Command hashing
#!/bin/sh
# empty hash table
echo "-- hash table --"
hash
# hash location of commands
ifconfig >/dev/null
which ls >/dev/null
echo "-- hash table --"