如何将表情符号的unicode转换为CLDR短名称

Question

我正在使用python提取注释并显示它们。 我打印的时候是这样的

This was heart wrenching \u2764\ufe0f
Amazing compassion \ud83d\udc9c\ud83d\udc9c\ud83d\udc9c #tears
\u2764\ufe0f\u2764\ufe0f\u2764\ufe0f

如何将表情符号的Unicode转换为相应的CLDR短名称？ 例如，U+1F44D将以竖起大拇指的方式打印

Answer 1

编辑：我想我找到了代码问题的解决方案\ud83d\udc9c

text = text.encode('utf-16', 'surrogatepass').decode('utf-16')

它将代理项值\ud83d\udc9c转换为正确的表情符号值\U0001f49c

资料来源：How to work with surrogate pairs in Python?

维基百科：Surrogate

其他：Unicode character inspector

---

使用谷歌我发现

print('\U0001F44D'.encode('ascii', 'namereplace').decode())

结果

\N{THUMBS UP SIGN}

及

import unicodedata

print(unicodedata.name('\U0001F44D'))

结果:

THUMBS UP SIGN

因此，在询问Stackoverflow之前，最好使用Google

https://docs.python.org/3/howto/unicode.html

---

文本也一样

text = '''This was heart wrenching \u2764\ufe0f
Amazing compassion \ud83d\udc9c\ud83d\udc9c\ud83d\udc9c #tears
\u2764\ufe0f\u2764\ufe0f\u2764\ufe0f'''

print(text.encode('ascii', 'namereplace').decode())

结果:

This was heart wrenching \N{HEAVY BLACK HEART}\N{VARIATION SELECTOR-16}
Amazing compassion \ud83d\udc9c\ud83d\udc9c\ud83d\udc9c #tears
\N{HEAVY BLACK HEART}\N{VARIATION SELECTOR-16}\N{HEAVY BLACK HEART}\N{VARIATION SELECTOR-16}\N{HEAVY BLACK HEART}\N{VARIATION SELECTOR-16}
\N{THUMBS UP SIGN}

现在您可能需要删除\N{和}

但是它在\ud83d\udc9c\ud83d\udc9c\ud83d\udc9c方面有问题

---

您可以在for-loop中使用unicodedata来获取文本中每个字符的名称，但如果它没有名称，即'\n'，则可能会出现问题。它还提供了普通字符的名称，因此您可能必须使用unicodedata.category()来决定要替换哪些字符

这也与\ud83d\udc9c\ud83d\udc9c\ud83d\udc9c有关

import unicodedata

# http://www.unicode.org/reports/tr44/#General_Category_Values

for char in text:
    try:
        print(char, '|', unicodedata.category(char), '|', unicodedata.name(char))
    except ValueError:
        print(repr(char), '| (repr)')

结果:

T | Lu | LATIN CAPITAL LETTER T
h | Ll | LATIN SMALL LETTER H
i | Ll | LATIN SMALL LETTER I
s | Ll | LATIN SMALL LETTER S
  | Zs | SPACE
w | Ll | LATIN SMALL LETTER W
a | Ll | LATIN SMALL LETTER A
s | Ll | LATIN SMALL LETTER S
  | Zs | SPACE
h | Ll | LATIN SMALL LETTER H
e | Ll | LATIN SMALL LETTER E
a | Ll | LATIN SMALL LETTER A
r | Ll | LATIN SMALL LETTER R
t | Ll | LATIN SMALL LETTER T
  | Zs | SPACE
w | Ll | LATIN SMALL LETTER W
r | Ll | LATIN SMALL LETTER R
e | Ll | LATIN SMALL LETTER E
n | Ll | LATIN SMALL LETTER N
c | Ll | LATIN SMALL LETTER C
h | Ll | LATIN SMALL LETTER H
i | Ll | LATIN SMALL LETTER I
n | Ll | LATIN SMALL LETTER N
g | Ll | LATIN SMALL LETTER G
  | Zs | SPACE
❤ | So | HEAVY BLACK HEART
️ | Mn | VARIATION SELECTOR-16
'\n' | (repr)
A | Lu | LATIN CAPITAL LETTER A
m | Ll | LATIN SMALL LETTER M
a | Ll | LATIN SMALL LETTER A
z | Ll | LATIN SMALL LETTER Z
i | Ll | LATIN SMALL LETTER I
n | Ll | LATIN SMALL LETTER N
g | Ll | LATIN SMALL LETTER G
  | Zs | SPACE
c | Ll | LATIN SMALL LETTER C
o | Ll | LATIN SMALL LETTER O
m | Ll | LATIN SMALL LETTER M
p | Ll | LATIN SMALL LETTER P
a | Ll | LATIN SMALL LETTER A
s | Ll | LATIN SMALL LETTER S
s | Ll | LATIN SMALL LETTER S
i | Ll | LATIN SMALL LETTER I
o | Ll | LATIN SMALL LETTER O
n | Ll | LATIN SMALL LETTER N
  | Zs | SPACE
'\ud83d' | (repr)
'\udc9c' | (repr)
'\ud83d' | (repr)
'\udc9c' | (repr)
'\ud83d' | (repr)
'\udc9c' | (repr)
  | Zs | SPACE
# | Po | NUMBER SIGN
t | Ll | LATIN SMALL LETTER T
e | Ll | LATIN SMALL LETTER E
a | Ll | LATIN SMALL LETTER A
r | Ll | LATIN SMALL LETTER R
s | Ll | LATIN SMALL LETTER S
'\n' | (repr)
❤ | So | HEAVY BLACK HEART
️ | Mn | VARIATION SELECTOR-16
❤ | So | HEAVY BLACK HEART
️ | Mn | VARIATION SELECTOR-16
❤ | So | HEAVY BLACK HEART
️ | Mn | VARIATION SELECTOR-16

---

因为它与\ud83d\udc9c\ud83d\udc9c\ud83d\udc9c有问题，所以我用?替换它

import unicodedata

text = '''This was heart wrenching \u2764\ufe0f
Amazing compassion \ud83d\udc9c\ud83d\udc9c\ud83d\udc9c #tears
\u2764\ufe0f\u2764\ufe0f\u2764\ufe0f'''

result = []

for char in text:
    if unicodedata.category(char) in ('So', 'Mn'):
        result.append(':{}:'.format(unicodedata.name(char)))
    elif unicodedata.category(char) in ('Cs'):
        result.append('?') #char)
    else:
        result.append(char)

print(''.join(result)) 

结果:

This was heart wrenching :HEAVY BLACK HEART::VARIATION SELECTOR-16:
Amazing compassion ?????? #tears
:HEAVY BLACK HEART::VARIATION SELECTOR-16::HEAVY BLACK HEART::VARIATION SELECTOR-16::HEAVY BLACK HEART::VARIATION SELECTOR-16:

---

编辑：再次使用Google，我发现外部模块emoji可以转换一些名称，但它也有问题\ud83d\udc9c，所以我使用repr来显示它，但它也将新行打印为\n

text = '''This was heart wrenching \u2764\ufe0f
Amazing compassion \ud83d\udc9c\ud83d\udc9c\ud83d\udc9c #tears
\u2764\ufe0f\u2764\ufe0f\u2764\ufe0f'''

import emoji

#print( repr(emoji.demojize(text, use_aliases=True)) ) 
print( repr(emoji.demojize(text)) ) 

结果:

'This was heart wrenching :heart:\nAmazing compassion \ud83d\udc9c\ud83d\udc9c\ud83d\udc9c #tears\n:heart::heart::heart:'

---

http://www.unicode.org/emoji/charts/full-emoji-list.html

https://www.webfx.com/tools/emoji-cheat-sheet/

http://unicode.org/Public/emoji/12.0/emoji-test.txt

---

顺便说一句：我找到了模块demoji，它可以找到表情符号并给出名称。但它也有代码\ud83d\udc9c的问题

import demoji

# run only once after installing module
demoji.download_codes()

print(demoji.findall(text))

安装模块后，只需demoji.download_codes()一次

结果:

{'❤️': 'red heart'}

---

如果您将其作为JSON数据"\ud83d\udc9c"获取，那么您应该不会有问题-它应该自动转换它

import json

# escaped unicode in " "  
data = r'"\ud83d\udc9c"' 
print(json.loads(data))

在其他情况下，您必须转换它

# convert to escaped unicode and put in " "  
data = '"{}"'.format('\ud83d\udc9c'.encode('unicode-escape').decode())
print(json.loads(data))

How to work with surrogate pairs in Python?