Posted 7 months ago. Visible to the public. Repeats.

When you want to format only line breaks, you probably do not want simple_format

For outputting a given String in HTML, you mostly want to replace line breaks with <br> or <p> tags.
You can use simple_format, but it has side effects like keeping some HTML.

If you only care about line breaks, you might be better off using a small, specialized helper method:

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def format_linebreaks(text) safe_text = h(text) paragraphs = split_paragraphs(safe_text).map(&:html_safe) html = ''.html_safe paragraphs.each do |paragraph| html << content_tag(:p, paragraph) end html end

Full disclosure: Under the hood this uses the private Rails helper method split_paragraphs that simple_format uses.
While it might break when upgrading Rails, you at least don't need to re-implement that part.

Note that calling map(&:html_safe) is okay because we escaped the input, and because splitting it won't turn the escaped input unsafe.

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Arne Hartherz
Last edit:
7 months ago
by Arne Hartherz
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