Unable to draw an Ext-B+ char on Windows

[danny0838]

What did you do?

1. Create a script file char.py for drawing.

#!/usr/bin/env python3
"""Draw a text image from a font
"""
import sys
import os
import argparse
from PIL import Image, ImageDraw, ImageFont

def color_hex_to_tuple(color):
    """Convert hex string RRGGBBAA to (R, G, B, A)
    """
    return (int(color[0:2], 16), int(color[2:4], 16), int(color[4:6], 16), int(color[6:8], 16))

def draw_text(text, font, size=40, fgcolor='000000FF', bgcolor='FFFFFF00', output='text.png'):
    if not output:
        return
    if type(size) == str:
        size = int(size)
    if type(fgcolor) == str:
        fgcolor = color_hex_to_tuple(fgcolor)
    if type(bgcolor) == str:    
        bgcolor = color_hex_to_tuple(bgcolor)

    img = Image.new('RGBA', (size, size), bgcolor)
    draw = ImageDraw.Draw(img)
    fnt = ImageFont.truetype(font, size)
    dx, dy = fnt.getoffset(text)
    draw.text((-dx, -dy), text, font=fnt, fill=fgcolor)
    img.save(output)

def main():
    root = os.path.dirname(__file__)

    parser = argparse.ArgumentParser(
        formatter_class=argparse.RawDescriptionHelpFormatter,
        description=__doc__,
        )
    parser.add_argument('text',
        help="""The text to draw.""")
    parser.add_argument('font',
        help="""The font used to draw the text.""")
    parser.add_argument('--size', default=40,
        help="""Image size in pixels. Default: %(default)s""")
    parser.add_argument('--fgcolor', default='000000FF',
        help="""Foreground color in hex RRGGBBAA. Default: %(default)s""")
    parser.add_argument('--bgcolor', default='FFFFFF00',
        help="""Background color in hex RRGGBBAA. Default: %(default)s""")
    parser.add_argument('--output', default=os.path.join(root, 'text.png'),
        help="""Output file path. Default: %(default)s""")
    args = vars(parser.parse_args())
    draw_text(**args)

if __name__ == "__main__":
    main()

2. Download http://fonts.jp/hanazono/ font and put in the same directory.

3. Try several ways to draw the text image:

3.1. Run below command on Windows:

chcp 950
char.py "人" HanaMinA.ttf

Result (successful):

3.2. Run below command on Windows:

chcp 65001
char.py "人" HanaMinA.ttf

Result (successful):

3.3. Run below command on Windows:

chcp 950
char.py "𠀀" HanaMinB.ttf

Result (bad):

3.4. Run below command on Windows:

chcp 65001
char.py "𠀀" HanaMinB.ttf

Result (bad):

3.5. Run below command on Linux:

char.py "𠀀" HanaMinB.ttf

Result (successful):

What did you expect to happen?

3.* should all draw the image successfully.

What actually happened?

3.3 and 3.4 doesn't draw the image as expected.

What versions of Pillow and Python are you using?

PIL.PILLOW_VERSION = 5.2.0

Tested on Windows 7, SP1 and Linux Ubuntu 16.