wrld.py 文件源码

def subsub(arg, line, num):
    """preforms regex substitution on current line of stdin for an arg"""
    pat, rep, count = arg
    if inspect.iscode(rep):
        return [re.sub(pat, lambda m: eval(rep, GenerousNamespace(m=m)),
                       line)]
    return [re.sub(pat, rep, line, count=count)]