#%copyright%

import os
import subprocess


def first_quot(line, isquotf):
    if line[0] == "\"" and isquotf == 0:
        return 1
    return 0


def last_quot(line, isquotf):
    if line[len(line) - 1] == '\"' and isquotf == 1:
        return 1
    return 0


def parse_command(command):
    command = command.split(" ")
    isquot = 0
    res = ""
    result = []
    for i in range(len(command)):
        if command[i] != "":
            if first_quot(command[i], isquot) == 1:
                isquot = 1
                res = command[i]
                continue
            if last_quot(command[i], isquot) == 1:
                isquot = 0
                res += " " + command[i]
                result.append(res)
                continue
            result.append(command[i])
    print(result)


def exec_command(command):
    result = []
    try:
        p = subprocess.Popen(command, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
        while 1:
            output = p.stdout.readline()
            if not output:
                break
            if output.strip() != "":
                result.append(output.decode().strip())
    except Exception as inst:
        print("Call process error: " + str(inst))
    return result


def exec_command_out(command):
    """
    Run command via os.system and return its exit status

    :param command: Command to execute in a subshell
    :return: Exit status of the command process
    """
    return os.system(command)


def exec_command_find_substring(command, substring):
    result = exec_command(command)
    for i in result:
        if substring in i:
            return i
    return -1
