`shell_shlex` incorrect parse.

[pahaz NA]

from sarge import shell_shlex, shell_format
import shlex
import subprocess

cmd = shell_format("python -c {0}", "print('ok')")
print("format: " + cmd)

try:
    args_shlex = shlex.split(cmd)
    print(args_shlex)
except:
    print('except shlex.split!')

try:
    args_shell_shlex = list(shell_shlex(cmd, control='();>|&'))
    print(args_shell_shlex)
except:
    print('except shell_shlex!')

Run this code:

C:\Users\pahaz_000>C:\Python27\python.exe z.py
format: python -c 'print('\''ok'\'')'
['python', '-c', "print('ok')"]
except shell_shlex!

As we can see, default shlex parser work fine with this example.

[pahaz NA]

Traceback (most recent call last):
  File "z.py", line 14, in <module>
    args_shell_shlex = list(shell_shlex(cmd, control='();>|&'))
  File "C:\Python27\lib\shlex.py", line 269, in next
    token = self.get_token()
  File "C:\Python27\lib\shlex.py", line 96, in get_token
    raw = self.read_token()
  File "C:\Python27\lib\site-packages\sarge\shlext.py", line 106, in read_token
    raise ValueError("No closing quotation")
ValueError: No closing quotation

[Vinay Sajip]

I don't think this is a bug. You have to specify posix=True, and then it works as expected.