ntfs-read.py 文件源码

def do_cd(self, line):
        p = string.replace(line,'/','\\')
        oldpwd = self.pwd
        newPath = ntpath.normpath(ntpath.join(self.pwd,p))
        if newPath == self.pwd:
            # Nothing changed
            return
        common = ntpath.commonprefix([newPath,oldpwd])

        if common == oldpwd:
            res = self.findPathName(ntpath.normpath(p))
        else:
            res = self.findPathName(newPath)

        if res is None:
            logging.error("Directory not found")
            self.pwd = oldpwd
            return 
        if res.isDirectory() == 0:
            logging.error("Not a directory!")
            self.pwd = oldpwd
            return
        else:
            self.currentINode = res
            self.do_ls('', False)
            self.pwd = ntpath.join(self.pwd,p)
            self.pwd = ntpath.normpath(self.pwd)
            self.prompt = self.pwd + '>'