dart - Google Dart 有类似 regex.exec() 的东西吗？

Question

我阅读了文档 ( https://api.dartlang.org/stable/1.21.1/dart-core/RegExp-class.html ) 但找不到我要找的东西。要么我不明白，要么我忽略了什么。

我正在尝试在 google dart 中复制以下内容:

var regex = /foo_(\d+)/g,
    str = "text foo_123 more text foo_456 foo_789 end text",
    match = null;

while (match = regex.exec(str)) {
    console.log(match); // matched capture groups
    console.log(match.index); // index of where match starts in string
    console.log(regex.lastIndex); // index of where match ends in string
}

我还创建了一个 jsfiddle:https://jsfiddle.net/h3z88udz/

dart 有类似 regex exec() 的东西吗？

Answer 1

RegExp.allMatches 看起来就像您想要的那样。

var regex = new RegExp(r"foo_(\d+)");
var str = "text foo_123 more text foo_456 foo_789 end text";

void main() {
  for (var match in regex.allMatches(str)) {
    print(match);
    print(match.start);
    print(match.end);
  }
}

https://dartpad.dartlang.org/dd1c136fa49ada4f2ad4ffc0659aab51