ruby - 如何从 Ruby 中的字符串中抓取文本片段？

Question

如果用户提交如下字符串:

My living room plans #plans #livingroom @cbmeeks #design @moe @larry -this is cool!

我想要以下数组/字符串:

text = "My living room plans"
tags = ['plans', 'livingroom', 'design']
people = ['cbmeeks', 'moe', 'larry']
description = "this is cool!"

提交的每个字符串都将以 text 片段开头。没有 @、- 等。我不必担心用户以标签或人开头。分割应该看起来像这样，除了 TEXT 始终排在第一位之外，顺序不限。

TEXT [-description] [#tags] [@people]

编辑我似乎无法弄清楚如何正确捕获它们。例如:

a = "My living room plans #plans #livingroom @cbmeeks #design @moe @larry -this is cool!"

/#\w+/.match(a).to_a
#=> ["#plans"] -- only grabs first one

Answer 1

这将自动删除 #、@、-，并将以任何顺序匹配:

string = "My living room plans #plans #livingroom @cbmeeks #design @moe @larry -this is cool!"
text = string[/^(.*?)+(?=\s[@#-])/]
tags = string.scan /(?<=#)\w+/
people = string.scan /(?<=@)\w+/
description = string[/(?<=-)(.*?)+?(?=($|\s[@#]))/]