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carlsmith /
Created Apr 5, 2017
A Python function that does multiple string replace ops in a single pass.
import re
def replace(string, substitutions):
substrings = sorted(substitutions, key=len, reverse=True)
regex = re.compile('|'.join(map(re.escape, substrings)))
return regex.sub(lambda match: substitutions[], string)
carlsmith /
Last active Feb 5, 2019
A small collection of generic CoffeeScript helper functions.
# shorthand wrapper for `console.log`
put = (args...) -> console.log args...
# initialise undefined vars: `[a, b, c] = init 3`
init = (amount) -> undefined for n in [1..amount]
# decorator for defining constructors (see
factory = (mutator) -> (args...) ->
mutator (self = Object.create null), args...
return self
carlsmith /
Last active May 25, 2018
[ALPHA] Hypertext Markup Engine | Taking another pop at generating HTML5 documents in Python 2
from htme import *
subpages = {
"unknown": {
"type": 'Unknown User',
"body": 'Your <a href="{URL}">Google Account</a> is unknown.'
"denial": {
"type": 'Unauthorized User',
"body": 'Your rank is too low to access this part of the app.'
carlsmith /
Last active May 2, 2018
This Python function downloads a given range of Phaser World back issues.
def download(issues):
"""This function downloads a given range of Phaser World back
issues into the current working directory. Any arguments will
be passed to the `range` function to define the list of issue
numbers that will be downloaded."""
import os
url_template = "{}.pdf"
carlsmith /
Last active Mar 27, 2018
Interleaved 2 of 5, SVG Barcode Generator
def render(digits):
'''This function converts its input, a string of decimal digits, into a
barcode, using the interleaved 2 of 5 format. The input string must not
contain an odd number of digits. The output is an SVG string.
Wikipedia [ITF Format]:
top = '<svg height="58" width="{0}" style="background:white">'
carlsmith /
Last active Apr 5, 2017
IPython line magic that adds highlighting to `less` using `pygmentize` - basically a coloured `cat` that scrolls well.
def nyan(path): os.system("pygmentize -g {0} | less -R".format(path))
carlsmith / ipython.jsf
Created Feb 23, 2017
IPython Syntax Highlighting for `ne` (the Nice Editor) and JOE (Joe's Own Editor).
View ipython.jsf
# IPython Highlighting for ne and JOE.
=Comment white
=Docstring green
=DocstringLabel magenta
=DocEscape bold yellow
=StringLiteral green
=Constant magenta
=Escape bold yellow
carlsmith /
Last active Jan 19, 2017
Main function decorator (for Python 2 and 3).
import inspect
def main(function):
locale = inspect.stack()[1][0].f_locals
module = locale.get("__name__", None)
if module == "__main__":
locale[function.__name__] = function
carlsmith /
Last active Jan 19, 2017
IPython line magic for launching a static fileserver. It uses Ruby as the Python fileserver sucks a bit.
import os
from IPython.core.magic import register_line_magic as line_magic
def fileserver(args):
path, port = args.split(" ") if args else (".", "8080")
os.system('ruby -run -ehttpd "{}" -p{}'.format(path, port))
carlsmith /
Last active Aug 12, 2016
IPython line magic for running a Keyboard Maestro macro by name.
import os
from IPython.core.magic import register_line_magic as line_magic
def maestro(name):
quote = lambda text: '"{}"'.format(text)
command = " osascript -e 'tell application {0} to do script {1}' "
os.system(command.format(quote("Keyboard Maestro Engine"), quote(name)))
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