django 'urlize' strings form text just like twitter

heyy there

i want to parse a text,let's name it 'post', and 'urlize' some strings if they contain a particular character, in a particular position.

my 'pseudocode' trial would look like that:

 def urlize(post)
      for string in开发者_运维问答 post
      if string icontains ('#')
      url=(r'^searchn/$',
                    searchn,
                    name='news_searchn'),
     then apply url to the string
     return urlize(post)

i want the function to return to me the post with the urlized strings, where necessary (just like twitter does).

i don't understand: how can i parse a text, and search for certain strings? is there ok to make a function especially for 'urlizing' some strings? The function should return the entire post, no matter if it has such kind of strings. is there another way Django offers? Thank you

---

First, I guess you mostly need this function in templates (you want to present the post "urlized").

There's the built-in template tag urlize, which is used like

{{ value|urlize }}

which takes a string value and returns it with links.

If you want to customize the logic, you can create your own template tag.

EDIT:
To find the # words you can use a simple regex search:

import re
a = "hello #world. foo #bar! #foo_bar"
re.findall("#(\w+)",a)

>> ['world', 'bar', 'foo_bar']