marseymoji/generate_emoji_placeholders.py

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from __future__ import print_function
import os
from os import path
import subprocess
OUTPUT_DIR = '/tmp/placeholder_emoji'
def generate_image(name, text):
print(name, text.replace('\n', '_'))
subprocess.check_call(
['convert', '-size', '100x100', 'label:%s' % text,
'%s/%s' % (OUTPUT_DIR, name)])
def is_color_patch(cp):
return cp >= 0x1f3fb and cp <= 0x1f3ff
def has_color_patch(values):
for v in values:
if is_color_patch(v):
return True
return False
def regional_to_ascii(cp):
return unichr(ord('A') + cp - 0x1f1e6)
def is_flag_sequence(values):
if len(values) != 2:
return False
for v in values:
v -= 0x1f1e6
if v < 0 or v > 25:
return False
return True
def is_keycap_sequence(values):
return len(values) == 2 and values[1] == 0x20e3
def get_keycap_text(values):
return '-%c-' % unichr(values[0]) # convert gags on '['
char_map = {
0x1f468: 'M',
0x1f469: 'W',
0x1f466: 'B',
0x1f467: 'G',
0x2764: 'H', # heavy black heart, no var sel
0x1f48b: 'K', # kiss mark
0x200D: '-', # zwj placeholder
0xfe0f: '-', # variation selector placeholder
0x1f441: 'I', # Eye
0x1f5e8: 'W', # 'witness' (left speech bubble)
}
def get_combining_text(values):
chars = []
for v in values:
char = char_map.get(v, None)
if not char:
return None
if char != '-':
chars.append(char)
return ''.join(chars)
if not path.isdir(OUTPUT_DIR):
os.makedirs(OUTPUT_DIR)
with open('sequences.txt', 'r') as f:
for seq in f:
seq = seq.strip()
text = None
values = [int(code, 16) for code in seq.split('_')]
if len(values) == 1:
val = values[0]
text = '%04X' % val # ensure upper case format
elif is_flag_sequence(values):
text = ''.join(regional_to_ascii(cp) for cp in values)
elif has_color_patch(values):
print('skipping color patch sequence %s' % seq)
elif is_keycap_sequence(values):
text = get_keycap_text(values)
else:
text = get_combining_text(values)
if not text:
print('missing %s' % seq)
if text:
if len(text) > 3:
if len(text) == 4:
hi = text[:2]
lo = text[2:]
else:
hi = text[:-3]
lo = text[-3:]
text = '%s\n%s' % (hi, lo)
generate_image('emoji_u%s.png' % seq, text)