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Editorial Team
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Asked: 2026-06-05T09:02:27+00:00

I need to wrap all instances of %{ … %} with <span code=’notranslate’>…</span> UNLESS

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I need to wrap all instances of %{ ... %} with <span code='notranslate'>...</span> UNLESS the %{ ... } appears within an HTML tag. For example, this:

"Or %{register_text} for a new account by <a href='%{path}'>clicking here</a>."

needs to become this

"Or <span code='notranslate'>%{register_text}</span> for a new account by <a href='%{path}'>clicking here</a>."

my current regex doesn’t take into account the HTML tag situation:

x.gsub(/[?<!]%\{([a-zA-Z0-9_\-]*)\}[?>!]/i) {|s| "<span class='notranslate'>#{s}</span>"}

so I am wondering how to do this in Ruby with regex.

Any takers?

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1 Answer

  1. Editorial Team

    I am not sure about the input space, so this is the best that I can come up with. I also clean up the regex a bit along the way.

    /%\{[\w-]+\}(?![^<>]>)/

    For a well-formed HTML, it will only match tokens that are outside tag. If the HTML is malformed, I don’t think I’m up to the task to write the regex.

    I also assume that there is no embedded Javascript in the page, since > and < in Javascript is not escaped.

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