Howto replace different values with tags in string?

Question

I have string:

Lorem ipsum dolor [mytag]something[/mytag]sit amet, ipsum [mytag]something else[/mytag]a laoreet ultricies

and I want to get values "something" and "something else" and replace it.

How to do it?

i don't know why this question got a up-vote! it doesn't say what's the expected output. And no sample code from the OP. — tuxuday
– tuxuday, Commented May 22, 2012 at 12:29
It's post. I want to replace tags [img] [/img] with <img src="..." /> — Nips
– Nips, Commented May 22, 2012 at 12:30

Yohann · Accepted Answer · 2012-05-22 12:32:56Z

3

You can use the bbcode module :

# Using the default parser.
import bbcode
html = bbcode.render_html(text)

Optionnal because i think there is already [img] :

# Installing simple formatters.
parser = bbcode.Parser()
parser.add_simple_formatter('img', '<img src="%(value)" />')

answered May 22, 2012 at 12:32

Yohann

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Comments

georg · Accepted Answer · 2012-05-22 12:32:20Z

1

Regular expressions is the way to go.

import re
s = 'Lorem ipsum dolor [mytag]something[/mytag]sit amet, ipsum [mytag]something else[/mytag]a laoreet ultricies'
print re.sub(r'\[mytag\](.+?)\[/mytag\]', r'<img src="\1">', s)

answered May 22, 2012 at 12:32

georg

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2 Comments

Yohann Over a year ago

Your solution works, but Python bbcode module is more elegant :-)

georg Over a year ago

@Yohann: I agree, but installing third-party modules can be inappropriate for the OP.

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