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Improve automatic downcasing of errors (#2777)

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Jonatan Kłosko 2024-09-09 18:40:50 +02:00 committed by GitHub
parent 2eb5963efe
commit 397f64e5aa
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1 changed files with 16 additions and 1 deletions
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lib/livebook/utils.ex
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@ -320,6 +320,8 @@ defmodule Livebook.Utils do
@doc """
Changes the first letter in the given string to lower case.
If the second letter is uppercase, the first letter case is kept.
## Examples
iex> Livebook.Utils.downcase_first("Sippin tea")
@ -328,6 +330,9 @@ defmodule Livebook.Utils do
iex> Livebook.Utils.downcase_first("Short URL")
"short URL"
iex> Livebook.Utils.downcase_first("URL invalid")
"URL invalid"
iex> Livebook.Utils.downcase_first("")
""
@ -335,7 +340,17 @@ defmodule Livebook.Utils do
@spec downcase_first(String.t()) :: String.t()
def downcase_first(string) do
{first, rest} = String.split_at(string, 1)
String.downcase(first) <> rest
should_downcase? =
if second = String.at(rest, 0) do
second == String.downcase(second)
end
if should_downcase? do
String.downcase(first) <> rest
else
string
end
end
@doc """