Dart语言，如何从字符串中提取特定部分

Question

我想从完整的字符串中提取这部分：

<a href=\"https://example.com/members/will/\">Will</a>

完整字符串：

"<a href=\"https://example.com/members/will/\">Will</a> posted an update in the group <a href=\"https://example.com/groups/testing/\">Testing</a>"

另一个例子

    <a href=\"https://example.com/members/longerName/\">longerName</a>

完整字符串：

"<a href=\"https://example.com/members/longerName/\">longerName</a> posted an update in the group <a href=\"https://example.com/groups/testing/\">Testing</a>"

请帮忙

Answer 1

从我的头脑来看，这可行。

正则表达式

<a\b[^>]*>(.*?)</a>

飞镖

final myString = "<a href=\"https://example.com/members/will/\">Will</a> bla bla bla";
final regexp = RegExp(r'<a\b[^>]*>(.*?)</a>'); 

// final match = regexp.firstMatch(myString);
// final link = match.group(0);

Iterable matches = regexp.allMatches(myString);
matches.forEach((match) {
  print(myString.substring(match.start, match.end));
});

Answer 2

这可行：

String str = "<a href=\"https://example.com/members/will/\">Will</a> posted an update in the group <a 
href=\"https://example.com/groups/testing/\">Testing</a>";

String result = str.split("</a>")[0] + "</a>";

Dart语言，如何从字符串中提取特定部分

Dart language, How to extract specific part from a string

dart

flutter