Say I have a string like:
..."StringToMatch":{"id":"StringToMatch","This":"SomeRandomThing"...
Well, it's actually a JSON but I want to treat it like a string for other reasons. How would I find the StringToMatch using regular expressions?
I'm currently using:
value1, value2 = re.findall('"(.*?)":{"id":"(.*?)","This":"SomeRandomThing"', string)[0][:2]
if value1 == value2:
return value1
But it seems a bit of a "hacky" way of doing it. Is there a better way to do it?
Use
"(\w+)":{"id":"\1"
See proof.
EXPLANATION
--------------------------------------------------------------------------------
" '"'
--------------------------------------------------------------------------------
( group and capture to \1:
--------------------------------------------------------------------------------
\w+ word characters (a-z, A-Z, 0-9, _) (1 or
more times (matching the most amount
possible))
--------------------------------------------------------------------------------
) end of \1
--------------------------------------------------------------------------------
":{"id":" '":{"id":"'
--------------------------------------------------------------------------------
\1 what was matched by capture \1
--------------------------------------------------------------------------------
" '"'
import re
regex = r'"(\w+)":{"id":"\1"'
test_str = "...\"StringToMatch\":{\"id\":\"StringToMatch\",\"This\":\"SomeRandomThing\"..."
match = re.search(regex, test_str)
if match is not None:
print(match.group(1))
