Prepares one CSS stylesheet for all styles which may be applied to D3 objects.

prepare_css.py

#usr/bin/python

import os
import re


this_path = os.path.abspath(__file__)
static_path = os.path.abspath(os.path.join(this_path, r'../../project/static'))


def remove_spacing(txt, character):
    txt = re.sub(character + ' ', character, txt)
    return re.sub(' ' + character, character, txt)

files = ['css/d3.css', 'css/styles.css', 'css/bootstrap-2.2.2.css']

txt = ''
for fn in files:
    with open(os.path.join(static_path, fn), 'r') as f:
        txt = txt + f.read() + ' '
txt = re.sub(r'\/\*[^(\*\/)]+\*\/', ' ', txt)
txt = re.sub(r'\n', ' ', txt)
txt = re.sub(r' >', ' ', txt)  # this style-type can break illustrator
txt = re.sub(r'[ ]+', ' ', txt)
txt = remove_spacing(txt, ":")
txt = remove_spacing(txt, "{")
txt = remove_spacing(txt, "}")
txt = remove_spacing(txt, ";")
txt = re.sub(r'}', r'}\n', txt)

with open(os.path.join(static_path, 'css/d3_styles_aggregated.css'), 'w') as f:
    f.write(txt)