+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
defmodule Pleroma.Formatter do
alias Pleroma.User
alias Pleroma.Web.MediaProxy
@tag_regex ~r/((?<=[^&])|\A)(\#)(\w+)/u
@markdown_characters_regex ~r/(`|\*|_|{|}|[|]|\(|\)|#|\+|-|\.|!)/
+ # Modified from https://www.w3.org/TR/html5/forms.html#valid-e-mail-address
+ @mentions_regex ~r/@[a-zA-Z0-9.!#$%&'*+\/=?^_`{|}~-]*@?[a-zA-Z0-9_-](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*/u
+
def parse_tags(text, data \\ %{}) do
Regex.scan(@tag_regex, text)
|> Enum.map(fn ["#" <> tag = full_tag | _] -> {full_tag, String.downcase(tag)} end)
end).()
end
+ @doc "Parses mentions text and returns list {nickname, user}."
+ @spec parse_mentions(binary()) :: list({binary(), User.t()})
def parse_mentions(text) do
- # Modified from https://www.w3.org/TR/html5/forms.html#valid-e-mail-address
- regex =
- ~r/@[a-zA-Z0-9.!#$%&'*+\/=?^_`{|}~-]*@?[a-zA-Z0-9_-](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*/u
-
- Regex.scan(regex, text)
+ Regex.scan(@mentions_regex, text)
|> List.flatten()
|> Enum.uniq()
- |> Enum.map(fn "@" <> match = full_match ->
- {full_match, User.get_cached_by_nickname(match)}
+ |> Enum.map(fn nickname ->
+ with nickname <- String.trim_leading(nickname, "@"),
+ do: {"@" <> nickname, User.get_cached_by_nickname(nickname)}
end)
|> Enum.filter(fn {_match, user} -> user end)
end