process.py 文件源码

def argv_to_cmdline(argv):
        """
        Convert a list of arguments to a single command line string.

        @type  argv: list( str )
        @param argv: List of argument strings.
            The first element is the program to execute.

        @rtype:  str
        @return: Command line string.
        """
        cmdline = list()
        for token in argv:
            if not token:
                token = '""'
            else:
                if '"' in token:
                    token = token.replace('"', '\\"')
                if  ' ' in token  or \
                    '\t' in token or \
                    '\n' in token or \
                    '\r' in token:
                        token = '"%s"' % token
            cmdline.append(token)
        return ' '.join(cmdline)