Python-替换表情符号

Question

l = ':;\'"!@#$%^&*()_-=+][{}~`.><?/\\|' # list of character that can be used for emoticons

s = '<p>This :) is an example for:) emoticons :)</p>'

I used s.replace(':)', '<img>') and,

result = '<p>this <img> is an example for<img> emoticons <img></p>'

How to make the result like:

result = '<p>this <img> is an example for:) emoticons <img></p>'

Thanks for any help!

EDIT: I have a initial list l . Users can only make a emoticon from characters in l . For example: :) , :] , ect. With each emoticon, I will change it to an image respectively in response. So users must enter data correctly: the wildcard should stand alone. The hard part is the input data include HTML tags.

Answer 1

import re
emos = { ':)' : 'smiley.jpg',
         ':(' : 'saddy.jpg',
         ';p' : 'bllinky.jpg' }
pattern = re.compile('|'.join( re.escape(emo) for emo in emos))
def emoImg(emoMatch):
    return '<img src = "/images/{0}>'.format(emos[emoMatch.group(0)])
def emoSub(string):
    return pattern.sub(emoImg,string)
print(emoSub('Hi :) I miss you :('))

Answer 2

>>> s = '<p>This :) is an example for:) emoticons :)</p>'
>>> s.replace(' :)', ' <img>')
'<p>This <img> is an example for:) emoticons <img></p>'

If you only want to make replacements where the pattern is has a leading space, put a leading space around both the match and the substitution.

Answer 3

import re
s = '<p>This :) is an example for:) emoticons :)</p>'
s = re.sub('\s:\)', ' <img>',s)