Helper tool for Box2D-HTML5 conversion. Fucking kill Google, one Closure Library at a time.

replace.py

import re
import sys

def replacer_pro(match):
    print match.group(1)
    parts = match.group(1).split('.')
    init_code = ''
    cur = ''
    for part in parts:
        if cur:
            cur += '.' + part
        else:
            cur = part
        init_code += """if (typeof NAME === 'undefined')
    NAME = {}""".replace('NAME', cur) + '\n'

    if init_code:
        init_code = '\n' + init_code

    return '// -removed- ' + match.group(0) + init_code

def replacer_req(match):
    print match.group(1)
    name = match.group(1)

    init_code = """if (typeof NAME === 'undefined')
    throw Error('I can haz NAME?')""".replace('NAME', name) + '\n'

    init_code = '\n' + init_code

    return '// -removed- ' + match.group(0) + init_code

def wrap(filename):
    print '- %s' % filename
    with open(filename) as f:
        text = f.read()
        text = re.sub(r"^goog\.provide\('(.+?)'\);?",
                      replacer_pro, text, flags=re.M)
        text = re.sub(r"^goog\.require\('(.+?)'\);?",
                      replacer_req, text, flags=re.M)
    with open(filename, 'wb') as f:
        f.write(text)

if __name__ == '__main__':
    for a in sys.argv[1:]:
        wrap(a)