什么是“红宝石方式"?解析单个键/值的字符串? [英] What's the "ruby way" to parse a string for a single key/value?

问题描述

我正在尝试解析多行字符串并按照模式获取行的其余部分.

文字:

<前>你好约翰你的用户名是:jj感谢您的注册

我想提取 jj，也就是您的用户名是:"之后的所有内容

一种方式:

text = "hello john\n你的用户名是:jj\n感谢注册\n"match = text[/您的用户名是:(.*)/]价值 = 1 美元

但这让我想起了 perl ......并且不像我被告知 ruby​​ 应该那样自然地阅读".

有更干净的方法吗?又名红宝石"方式?

谢谢

解决方案

您的代码几乎是 Ruby 的方式.如果不想使用全局的 $1，可以使用 2 arg 版本 String#[]:

match = text[/你的用户名是:(.*)/, 1]

I am trying to parse a multi line string and get the rest of the line following a pattern.

text:

hello john
your username is: jj
thanks for signing up

I want to extract jj, aka everything after "your username is: "

One way:

text = "hello john\nyour username is: jj\nthanks for signing up\n"
match = text[/your username is: (.*)/]
value = $1

But this reminds me of perl... and doesn't "read" as naturally as I am told ruby should.

Is there a cleaner way? AKA A "ruby" way?

Thanks

解决方案

Your code is pretty much the Ruby way. If you don't want to use the global $1, you can use the 2 arg version String#[]:

match = text[/your username is: (.*)/, 1]

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