How to extract data from wiki links?
I want to extract data from the wiki link returned by the mwparserfromhell library. For example, I want to parse the following string:
1 |
|
If I split the string using the characters |
it doesn't work because there is also a link using |
in the image description: [[Maria Skvo Dowska-Curie Museum|Birthplace]]
.
I used a regular expression to first replace all the links in the string and then split it. It works (in this case), but doesn't feel clean (see code below). Is there a better way to extract information from a string like this?
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 |
|
Correct answer
.filter_wikilinks()
The link returned is the wikilink
class, This class has title
and text
properties.
title
Returns the title of the link:file:warszawa, ul. Fretta16 20170516 002.jpg
text
Return to the rest of the link:thumb|upright=1.18|[[maria skłodowska-curie museum|birthplace]] Marie Curie, 16 freta street , [[Warsaw]], [[Poland]].
These are returned as wikicode
objects.
Since the actual text is always the last fragment, you first need to find the other fragments using the following regular expression:
([^\[\]|]*\|)
(
)
: Group[^\[\]|]*
: 0 or more characters that are not square brackets or vertical bars\|
:Literal Pipe
Everything else from the end index of the last match to the end of the string is the last fragment.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 |
|
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