Full-width character converter for OS X

fullwidth.py

#!/usr/bin/env python
import subprocess
import sys

DIFF = 0xFF01 - 0x0021

def transform(c):
    i = ord(c)
    if i >= 0x21 and i <= 0xFE:
        return unichr(DIFF + i)
    elif i == ord(' '):
        return unichr(0x3000)
    else:
        return unichr(i)

if len(sys.argv) > 1:
    input = ' '.join(sys.argv[1:])
else:
    input = sys.stdin.readlines()

output = ''.join(map(transform, input)).encode('utf-8')
print output

subprocess.Popen(['pbcopy', 'w'], stdin=subprocess.PIPE, close_fds=True).communicate(output)