Regex that finds JSON string inside another string [closed]

Question

Closed. This question needs debugging details. It is not currently accepting answers.

Edit the question to include desired behavior, a specific problem or error, and the shortest code necessary to reproduce the problem. This will help others answer the question.

Closed 5 years ago.

Improve this question

I would like to extract a JSON string within another string.

Currently I am getting the full string using file_get_contents and running the following pattern on the string: https://regex101.com/r/5jAucO/1 which pretty much gives multiple matches.

I would like to extract the JSON string that is saved in window._sharedData but haven't been able to achieve that. Does someone have any idea how I could do that?

have you read this stackoverflow.com/questions/23429182/… ? — borracciaBlu
– borracciaBlu, Commented Apr 7, 2017 at 2:42

Daniel Leach · Accepted Answer · 2017-04-07 05:40:52Z

0

Why not include _sharedData in the regex like? _sharedData\s*=\s*\{.+\}

or with lookbehind: (?<=_sharedData\s=)\s*\{.+\}
or take the json from a capturing group: _sharedData\s*=\s*(\{.+\})

One concern with the lookbehind is if they add an additional whitespace character between _sharedData and = it won't match.

This only works well since there are no linebreaks in the JSON.

edited Apr 7, 2017 at 5:40

answered Apr 7, 2017 at 4:36

Daniel Leach

7,9254 gold badges21 silver badges33 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

user1788736 Over a year ago

can we do the same thing using javascript ? i want to get _sharedData using javascript

Daniel Leach Over a year ago

the regex with the lookbehind wouldn't work in javascript but since the example is trying to capture json within a web page, I would recommend making sure the html is rendered in a dom and then just access the _sharedData variable via window._sharedData instead.

Collectives™ on Stack Overflow

Regex that finds JSON string inside another string [closed]

1 Answer 1

2 Comments

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

2 Comments

Linked

Related