I wonder if I can ask a newbie question, maybe..I’m trying to replace <source>SOMETHING</source> with <code><pre>SOMETHING</pre></code> So I can replace the entire match iex(14)> String.replace("<source>(aaaM)</source>", ~r/<source>(.*)<\/source>/, fn match-> "<code><pre>#{match}</pre></code>" …

I’m not sure I fully understand what you want to do, but this example might give you a sense: def replace_characters(string) do to_replace = ["&", "<", ">", "/", "'"] String.replace(string, to_replace, fn "&" -> "H" "<" -> "E" ">" -> "L" "/" -> "L" "'" -> "O" …

OK, that makes sense if the arity is 1. Is there no way to get access to the multiple matched elements in the regex if you use an anonymous function? I would like to HTML Escape the contents of the <source> tag

OK, looks like I got it. I needed Regex.replace rather than String.replace def standardize_code(body) do Regex.replace(~r/<source>(.*?)<\/source>/s, body, fn _, code -> case Phoenix.HTML.html_escape(code) do {:safe, html} -> "<code><pre>#{html}</pre></code>" _…

Hello, just a note. The function Phoenix.HTML.html_escape does always return {:safe, content} according to the spec. Because if it finds code, that needs to be escaped, it escapes it.. That tuple is for phoenix rendering where you put this tuple into template, informing it that the given content is …

[image] TheMaikXX: There is also {:raw, content} that tells phoenix that you insist on putting the content into final result as-is. There is the function raw/1, but that also just wraps data into a {:safe, …} tuple. There’s no :raw tagged tuple support afaik.

String.replace with a Regex uses Regex.replace under the hood, but the declaration of String.replace specifically narrows the allowed type of the function. Looks like it’s been that way since the feature was added: https://github.com/elixir-lang/elixir/pull/9073 Using Regex.replace directly should…

Thank you all :slight_smile: Regex.replace was the thing thing,

A silly question that bugs me a lot. Why does Regex.replace take a (... -> String.t) as the third argument instead of a ([String.t] -> String.t)? And, when I run this piece of code Regex.replace(~r/\b\w+\b/, "hello, world", fn [capture] -> String.reverse(capture) end) it gives me an error ** (…

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String.replace with anonymous function with multiple matches

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braindeaf May 6, 2022, 5:09pm 8

Thank you all Regex.replace was the thing thing,