CODEWITHSUNDEEP
ruby-on-railsrubyregexruby-on-rails-3
AnApprentice
AnApprentice

Reputation: 110960

How can I convert a newline to a <BR> tag?

Given the following text in a textarea: 

Line 1 stuff.. Line 1 stuff.. Line 1 stuff.. Line 1 stuff.. Line 1 stuff.. 

Line 2 stuff.. Line 2 stuff.. Line 2 stuff.. Line 2 stuff.. Line 2 stuff..

I want to convert the new lines to <BR> tags, not use the simple_format <P> tags...

So I tried:

 str = str.gsub("\r\n", '<br>')

Problem is this is making two <BR> tags:

<div class="message">line 1<br><br>Line 2</div>

How can make just one <BR> tag?

Upvotes: 3

Views: 4932

Answers (4)

user7516728
user7516728

Reputation:

Best way to do this is to use simple_format(str):

simple_format() is a helper function which will convert new lines and carriage returns to <br> and <p>...</p> tags.

reference: http://api.rubyonrails.org/classes/ActionView/Helpers/TextHelper.html#method-i-simple_format

Upvotes: 7

Alex D
Alex D

Reputation: 30445

str = str.gsub(/[\r\n]+/, "<br>")

This will turn any number of consecutive \r and/or \n characters into a single <br>.

Upvotes: 6

mkro
mkro

Reputation: 1892

This would mean that you have two occurrences of "\r\n". So you could sanitize the input or expect this situation in your regex.

Have a look at this: Ruby gsub / regex modifiers?

Upvotes: 1

personak
personak

Reputation: 539

You have two line breaks in the input text. If you want there to be one <br/>, just do:

str = str.gsub("\r\n\r\n", '<br />');

Upvotes: 0

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