list all CSS lines with color values

css_colors.py

import re

txt = open("/path/to/foobar.css,"r").read()

txt = re.sub("/\*.*?\*/(?s)", "", txt) # remove /* multi line */ comments
txt = re.sub("//.*?(?m)", "", txt) # remove // single line comments

regex = re.compile(
    r"""
    (?P<name>.*?)
    \{
    (?P<data>.*?)
    \}""",
    re.IGNORECASE | re.VERBOSE | re.UNICODE
)

for match in regex.finditer(txt):
    css_data = match.group("data")
    if not "color" in css_data:
        continue

    print("%s {" % match.group("name"))

    for part in css_data.split(";"):
        if "color" in part:
            print("\t%s;" % part)

    print("}")