Ruby中的正则表达式 - 提取Word

Question

我已经在R中解决了以下文字。 有谁知道如何用Ruby编写它？

text <- 'have a nice day, @hello, mr burs'
x <- gsub('.*(@\\w+).*', '\\1', text)
x

[1] "@hello"

谢谢！

Answer 1

s = 'have a nice day, @hello, mr burs'
s =~ /.*(@\w+).*/   # match
$~[1]               # this will return "@hello"
# $~ means "the last regexp match", a `MatchData` instance. And we can get matched group by index.