En Fri, 02 May 2008 15:51:42 -0300, Oltmans <[EMAIL PROTECTED]>
escribió:
Hi,
I'm new to Python (and admittedly not a very good programmer) and I've
come across a scenario where I've to search and replace text in a
file.
For the sake of an example, I'm searching for every occurence of the
text
[[http://www.hotmail.com -> Hotmail]]
I've to replace it with
[http://www.hotmail.com Hotmail]
I've come up with following scheme
p=re.compile(r'\[\[')
q=re.compile(r'->')
p.sub('[',txt)
q.sub('\b',txt)
Is it a constant text? Then use the replace method of string objects: no
re is needed.
text = "This is [[http://www.hotmail.com -> Hotmail]] some text"
print text.replace("[[http://www.hotmail.com -> Hotmail]]",
"[http://www.hotmail.com Hotmail]")
output: This is [http://www.hotmail.com Hotmail] some text
Or, do you want to find '[[' followed by some word followed by ' -> '
followed by another word followed by ']]'?
r = re.compile(r'\[\[(.+?)\s*->\s*(.+?)\]\]')
print r.sub(r'[\1 \2]', text)
(same output as above)
() in the regular expression indicate groups, that you can reference as \1
\2 in the replacement string.
--
Gabriel Genellina
--
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