Make a function acceptable for :skip_code_autolink_to option

lib/ex_doc/autolink.ex

@@ -26,7 +26,8 @@ defmodule ExDoc.Autolink do
   #
   # * `:skip_undefined_reference_warnings_on` - list of modules to skip the warning on
   #
-  # * `:skip_code_autolink_to` - list of terms that will be skipped when autolinking (e.g: "PrivateModule")
+  # * `:skip_code_autolink_to` - function that will be called with a term and return a boolean
+  #    whether to skip autolinking to it.
   #
   # * `:filtered_modules` - A list of module nodes that were filtered by the retriever
   #
@@ -54,7 +55,7 @@ defmodule ExDoc.Autolink do
     current_kfa: nil,
     siblings: [],
     skip_undefined_reference_warnings_on: [],
-    skip_code_autolink_to: [],
+    skip_code_autolink_to: &ExDoc.Config.skip_code_autolink_to/1,
     force_module_prefix: nil,
     filtered_modules: [],
     warnings: :emit
@@ -201,7 +202,7 @@ defmodule ExDoc.Autolink do
   end
 
   def url(string, mode, config) do
-    if Enum.any?(config.skip_code_autolink_to, &(&1 == string)) do
+    if config.skip_code_autolink_to.(string) do
       nil
     else
       parse_url(string, mode, config)

lib/ex_doc/config.ex

@@ -8,6 +8,7 @@ defmodule ExDoc.Config do
   def before_closing_footer_tag(_), do: ""
   def before_closing_body_tag(_), do: ""
   def annotations_for_docs(_), do: []
+  def skip_code_autolink_to(_string), do: false
 
   defstruct annotations_for_docs: &__MODULE__.annotations_for_docs/1,
             api_reference: true,
@@ -39,7 +40,7 @@ defmodule ExDoc.Config do
             project: nil,
             retriever: ExDoc.Retriever,
             skip_undefined_reference_warnings_on: [],
-            skip_code_autolink_to: [],
+            skip_code_autolink_to: &__MODULE__.skip_code_autolink_to/1,
             source_beam: nil,
             source_ref: @default_source_ref,
             source_url: nil,
@@ -77,7 +78,7 @@ defmodule ExDoc.Config do
           project: nil | String.t(),
           retriever: atom(),
           skip_undefined_reference_warnings_on: [String.t()],
-          skip_code_autolink_to: [String.t()],
+          skip_code_autolink_to: (String.t() -> boolean),
           source_beam: nil | String.t(),
           source_ref: nil | String.t(),
           source_url: nil | String.t(),
@@ -102,6 +103,9 @@ defmodule ExDoc.Config do
         options
       end
 
+    {skip_code_autolink_to, options} =
+      Keyword.pop(options, :skip_code_autolink_to, &skip_code_autolink_to/1)
+
     {source_url_pattern, options} =
       Keyword.pop_lazy(options, :source_url_pattern, fn ->
         guess_url(options[:source_url], options[:source_ref] || @default_source_ref)
@@ -116,6 +120,7 @@ defmodule ExDoc.Config do
       output: normalize_output(output),
       proglang: normalize_proglang(proglang),
       project: project,
+      skip_code_autolink_to: normalize_skip_code_autolink_to(skip_code_autolink_to),
       source_url_pattern: source_url_pattern,
       version: vsn
     }
@@ -169,6 +174,12 @@ defmodule ExDoc.Config do
   defp normalize_filter_modules(fun) when is_function(fun, 2),
     do: fun
 
+  defp normalize_skip_code_autolink_to(strings) when is_list(strings),
+    do: &(&1 in strings)
+
+  defp normalize_skip_code_autolink_to(fun) when is_function(fun, 1),
+    do: fun
+
   defp guess_url(url, ref) do
     with {:ok, host_with_path} <- http_or_https(url),
          {:ok, pattern} <- known_pattern(host_with_path, ref) do

lib/ex_doc/language/erlang.ex

@@ -631,7 +631,7 @@ defmodule ExDoc.Language.Erlang do
             visibility = Refs.get_visibility(ref)
 
             cond do
-              Enum.any?(config.skip_code_autolink_to, &(&1 == "t:#{name}/#{arity}")) ->
+              config.skip_code_autolink_to.("t:#{name}/#{arity}") ->
                 nil
 
               visibility in [:public] ->
@@ -657,7 +657,7 @@ defmodule ExDoc.Language.Erlang do
             visibility = Refs.get_visibility(ref)
 
             cond do
-              Enum.any?(config.skip_code_autolink_to, &(&1 == "t:#{module}:#{name}/#{arity}")) ->
+              config.skip_code_autolink_to.("t:#{module}:#{name}/#{arity}") ->
                 nil
 
               visibility in [:public] ->

lib/mix/tasks/docs.ex

@@ -157,9 +157,10 @@ defmodule Mix.Tasks.Docs do
 
     * `:skip_code_autolink_to` - Similar to `:skip_undefined_reference_warnings_on`, this option
       controls which terms will be skipped by ExDoc when building documentation.
-      Useful for example if you want to highlight private modules or functions
-      without warnings (e.g.: `["PrivateModule", "PrivateModule.func/1"]`);
-      default: `[]`.
+      Useful for example if you want to highlight private modules or functions without warnings.
+      This option can be a function from a term to a boolean (e.g.: `&String.match?(&1, ~r/PrivateModule/)`
+      or a list of terms (e.g.:`["PrivateModule", "PrivateModule.func/1"]`);
+      default is nothing to be skipped.
 
     * `:source_beam` - Path to the beam directory; default: mix's compile path.
 

test/ex_doc/config_test.exs

@@ -30,4 +30,28 @@ defmodule ExDoc.ConfigTest do
     assert config.filter_modules.(Foo, %{works: true})
     refute config.filter_modules.(Foo, %{works: false})
   end
+
+  test "normalizes skip_code_autolink_to" do
+    config =
+      ExDoc.Config.build(@project, @version,
+        skip_code_autolink_to: ["ConfigTest.Hidden", "ConfigTest.Hidden.foo/1"]
+      )
+
+    assert config.skip_code_autolink_to.("ConfigTest.Hidden")
+    assert config.skip_code_autolink_to.("ConfigTest.Hidden.foo/1")
+    refute config.skip_code_autolink_to.("ConfigTest.Hidden.foo/2")
+    refute config.skip_code_autolink_to.("ConfigTest.Hidden.bar/1")
+    refute config.skip_code_autolink_to.("ConfigTest.NotHidden")
+
+    config =
+      ExDoc.Config.build(@project, @version,
+        skip_code_autolink_to: &String.match?(&1, ~r/\AConfigTest\.Hidden/)
+      )
+
+    assert config.skip_code_autolink_to.("ConfigTest.Hidden")
+    assert config.skip_code_autolink_to.("ConfigTest.Hidden.foo/1")
+    assert config.skip_code_autolink_to.("ConfigTest.Hidden.foo/2")
+    assert config.skip_code_autolink_to.("ConfigTest.Hidden.bar/1")
+    refute config.skip_code_autolink_to.("ConfigTest.NotHidden")
+  end
 end

test/ex_doc/language/elixir_test.exs

@@ -425,10 +425,7 @@ defmodule ExDoc.Language.ElixirTest do
       ])
 
       options = [
-        skip_code_autolink_to: [
-          "AutolinkTest.Hidden",
-          "AutolinkTest.Hidden.foo/1"
-        ]
+        skip_code_autolink_to: &String.match?(&1, ~r/\AAutolinkTest\.Hidden/)
       ]
 
       assert autolink_doc("`AutolinkTest.Hidden`", options) ==