我如何转换/替换每一个换行'< br />'？ [英] How can i convert/replace every newline to '<br/>'?

问题描述

set tabstop=4
set shiftwidth=4
set nu
set ai
syntax on
filetype plugin indent on

我试过了， content.gsub（\r\\\
，< br />）但是当我点击view / show按钮来查看这些行的内容时，我得到了output / result =>

I tried this, content.gsub("\r\n","<br/>") but when I click the view/show button to see the contents of these line, I get the output/result=>

set tabstop=4<br/> set shiftwidth=4<br/> set nu<br/> set ai<br/> syntax on<br/> filetype plugin indent on

但我试图将这些行作为单独的行。但都成为一条线。为什么？

But I tried to get those lines as a seperate lines. But all become as a single line. Why?

如何使用html中断（< br /> ）来创建所有这些行？

How can I make all those lines with a html break (<br/>) ?

我试过这个，没有用。

I tried this, that didn't work.

@addpost = Post.new params[:data]
@temptest = @addpost.content.html_safe
@addpost.content = @temptest
#logger.debug(@addpost)
@addpost.save

还尝试不保存到数据库中。仅在视图图层中尝试过，<％= t.content.html_safe％> 那也没用。

Also tried without saving into database. Tried only in view layer,<%= t.content.html_safe %> That didn't work too.

从页面源获得此内容

        <a href="/posts/36">vimrc file</a> <br/>
        2011-12-06<br/><br/>

        set tabstop=4&lt;br/&gt;&lt;br/&gt;set shiftwidth=4&lt;br/&gt;&lt;br/&gt;set nu&lt;br/&gt;&lt;br/&gt;set ai&lt;br/&gt;&lt;br/&gt;syntax on&lt;br/&gt;&lt;br/&gt;filetype plugin indent on<br/>

            <a href="/posts/36/edit">Edit</a>
            <a href="/posts/36" data-confirm="Are you sure?" data-method="delete" rel="nofollow">Delete</a>
        <br/><br/>

推荐答案

您需要使用 html_safe 如果您想渲染嵌入式HTML：

You need to use html_safe if you want to render embedded HTML:

<%= @the_string.html_safe %>

如果它可能为零， raw（@the_string）不会抛出异常。我对 raw 有点矛盾;我几乎从不尝试显示可能是 nil 的字符串。

If it might be nil, raw(@the_string) won't throw an exception. I'm a bit ambivalent about raw; I almost never try to display a string that might be nil.

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