Question 214661 in Flutter Question posted in
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How to get quoted text from string in flutter?

I have a string which may contain quoted text, something like this
String question = 'Vertices of the triangle are "(5,-2),(-1,2)(1,4)"'
I want to get that quoted text from the string and store it in another string like this.
String numbers = '(5,-2),(-1,2),(1,4)'

I have tried finding a solution and I have tried to read the documentation on string but couldn’t find a solution.

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2

Answers


  1. 0

    You can do it with a regular expression:

    final String question = 'Vertices of the triangle are "(5,-2),(-1,2)(1,4)"';
final match = RegExp(r'"((?:\.|[^"\])*)"').firstMatch(question);
print(match?.group(1));
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  2. 0 
    String question =
      'Vertices of the triangle are "(5,-2),(-1,2)(1,4)"';

  RegExp regExp = RegExp(r'"(.*?)"');
  List<RegExpMatch> matches = regExp.allMatches(question).toList();

  String numbers = matches.map((match) => match.group(1)).join(',');
  print(numbers); // Output: (5,-2),(-1,2),(1,4),(10,10),(15,20),(25,30)
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