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prefix-css/prefixcss.py at master · whitejava/prefix-css · GitHub

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#!/usr/bin/python

import sys

import pprint

import re

USAGE = '''

prefixcss <file> <css-class>

'''

def main(file, wrapclass):

with open(file, 'rb') as f:

css = f.read()

css = css.decode('utf8')

result = prefixcss(css, wrapclass)

print result

def prefixcss(css, wrapclass):

RULE = '[^{}@]*{[^{}]*?}'

matches = list(re.finditer(RULE, css))

for e in reversed(matches):

rule = css[e.start():e.end()]

rule = stripcomment(rule)

rule = processrule(rule, wrapclass)

css = strreplace(css, e.span(), rule)

return css

def processrule(rule, wrapclass):

rule = rule.strip()

bracepos = rule.index('{')

body = rule[bracepos:]

selector = rule[:bracepos]

selector = selector.split(',')

selector = [wrapclass + ' ' + e.strip() for e in selector]

selector = ','.join(selector)

return selector + body

def strreplace(s, (start, end), dst):

return s[:start] + dst + s[end:]

def stripcomment(css):

COMMENT = '/\*.*?\*/'

return regexreplace(css, COMMENT, ' ')

def regexreplace(css, regex, replacement):

matches = list(re.finditer(regex, css))

for e in reversed(matches):

css = strreplace(css, e.span(), replacement)

return css

def oneline(css):

SPACE = '\s+'

return regexreplace(css, SPACE, ' ')

if __name__ == '__main__':

try:

main(*sys.argv[1:])

except TypeError as ex:

print 'Not enough argument'

print USAGE

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