Move all regexes out of module attributes

Regexes aren't allowed in module attributes as of OTP 28. This moves
them inline rather than hoisted at the top of the module.

Author: sorentwo

lib/oban/web/queries/job_query.ex

@@ -45,9 +45,6 @@ defmodule Oban.Web.JobQuery do
 
   @states Map.new(Oban.Job.states(), &{to_string(&1), &1})
 
-  # Split terms using a positive lookahead that skips splitting within double quotes
-  @split_pattern ~r/\s+(?=([^\"]*\"[^\"]*\")*[^\"]*$)/
-
   defguardp is_mysql(conf) when conf.engine == Oban.Engines.Dolphin
 
   defguardp is_sqlite(conf) when conf.engine == Oban.Engines.Lite
@@ -191,7 +188,7 @@ defmodule Oban.Web.JobQuery do
 
   def suggest(terms, conf, opts \\ []) do
     terms
-    |> String.split(@split_pattern)
+    |> String.split(~r/\s+(?=([^\"]*\"[^\"]*\")*[^\"]*$)/)
     |> List.last()
     |> to_string()
     |> case do

lib/oban/web/queries/queue_query.ex

@@ -24,8 +24,6 @@ defmodule Oban.Web.QueueQuery do
 
   # Searching
 
-  @split_pattern ~r/\s+(?=([^\"]*\"[^\"]*\")*[^\"]*$)/
-
   def filterable, do: ~w(modes nodes stats)a
 
   def parse(terms) when is_binary(terms) do
@@ -34,7 +32,7 @@ defmodule Oban.Web.QueueQuery do
 
   def suggest(terms, conf, _opts \\ []) do
     terms
-    |> String.split(@split_pattern)
+    |> String.split(~r/\s+(?=([^\"]*\"[^\"]*\")*[^\"]*$)/)
     |> List.last()
     |> to_string()
     |> case do

lib/oban/web/search.ex

@@ -3,8 +3,6 @@ defmodule Oban.Web.Search do
 
   # Helpers for the search toolbar
 
-  # Split terms using a positive lookahead that skips splitting within double quotes
-  @split_pattern ~r/\s+(?=([^\"]*\"[^\"]*\")*[^\"]*$)/
   @ignored_chars ~w(; / \ ` ' = * ! ? # $ & + ^ | ~ < > ( \) { } [ ])
 
   # Suggestion tuning
@@ -16,7 +14,7 @@ defmodule Oban.Web.Search do
   """
   def parse(terms, parser) when is_binary(terms) and is_function(parser, 1) do
     terms
-    |> String.split(@split_pattern, trim: true)
+    |> String.split(~r/\s+(?=([^\"]*\"[^\"]*\")*[^\"]*$)/, trim: true)
     |> Map.new(fn term ->
       term
       |> String.replace(@ignored_chars, "")