I have the following string:

text='2-05-13 15:31:48.253 StockSpy Realtime Stocks Quote[5353:207339] Websocket: symbols: ({change = "0.5250015";changePercent = "1.49701"; dayVolume = 16608364; exchange = NYQ; id = BAC; marketHours = 1; price = "35.595"; priceHint = 4;quoteType = 8; time = 3304904610000})2022-05-13 15:31:48.256 StockSpy Realtime Stocks Quote[5353:207339] Websocket: Streamer Prices Updat2022-05-13 15:31:48.256 StockSpy Realtime Stocks Quote[5353:207343] refreshG2022-05-13 15:31:48.267 StockSpy Realtime Stocks Quote[5353:207339] webSocket:(SRWebSocket *)webSocket didReceiveMessage:(id)message: CgReREpJFRSv 0YY8MCp3ZdgKgNESkkwCTgBRb2 wz9ItLvjWGWAnvJD2A2022-05-13 15:31:48.267 StockSpy Realtime Stocks Quote[5353:207339] Websocket: symbols: (  {  change = "485.2383";  changePercent = "1.529258";  dayVolume = 186178996;  exchange = DJI;  id = "^DJI";  marketHours = 1; price = "32215.54";  priceHint = 4; quoteType = 9; time = 3304904614000})'

and I want to extract only the following text:

symbols: (  {  change = "485.2383";  changePercent = "1.529258";  dayVolume = 186178996;  exchange = DJI;  id = "^DJI";  marketHours = 1; price = "32215.54";  priceHint = 4; quoteType = 9; time = 3304904614000})

and all the text in that specific format as this appears mutiple times in my dataset.

Therefore, I need a regex pattern that can extract all the data within the parentheses, including the parentheses and the word symbols. So something that searches for all the words symbols and finishes at the last closing parentheses and grabs al of these.

I have used regex101 to build a pattern, and the closest I got to was this pattern by using the following:

^[^\()] (^.)\s

The structure of my text is like in the regex101 however, when it's just as a single string as given above, I used:

\(.*?\)

however it still grabs unncessary text.

CodePudding user response：

You can make the pattern a bit more specific:

\bsymbols:\s*\({change\s*=[^{}]*}\)

Explanation

• \bsymbols:\s* Match the word symbols, then : and optional whitespace chars
• \({ Match ({
• change\s*= Match change, optional whitepace chars and =
• [^{}]* Match optional chars other than { and }
• }\) Match })

See a regex101 demo

Or only specifying symbols making the pattern a bit less strict:

\bsymbols:\s*\({[^{}]*}\)

Regex demo

CodePudding user response：

You can do it with this regex:

symbols: *\( *{[^}] } *\)

Explanation:

• symbols:: "symbols" word followed by colon
• *: any number of spaces
• \(: open parenthesis
• *: any number of spaces
• {: open curly brace
• [^}] : any character other than curly brace
• }: closed curly brace
• *: any number of spaces
• ): closed parenthesis

Try it here.