feat(core): exposed formatting with prettier options

Author: tgreyuk

.changeset/chatty-cheetahs-love.md

@@ -0,0 +1,5 @@
+---
+'typedoc-plugin-markdown': minor
+---
+
+- Exposed formatting with prettier options (--formatWithPrettier and --prettierConfigFile).

docs/pages/docs/options.mdx

@@ -47,6 +47,8 @@ Options that are used to configure how the output is structured and displayed.
 
 Options that are used for general configuration and utility purposes.
 
+- [--formatWithPrettier](./options/utility-options.mdx#--formatwithprettier)
+- [--prettierConfigFile](./options/utility-options.mdx#--prettierconfigfile)
 - [--sanitizeComments](./options/utility-options.mdx#--sanitizecomments)
 - [--publicPath](./options/utility-options.mdx#--publicpath)
 - [--anchorPrefix](./options/utility-options.mdx#--anchorprefix)

docs/pages/docs/options/utility-options.mdx

@@ -4,6 +4,49 @@ import { Callout, FileTree } from "nextra/components";
 
 Options that are used for general configuration and utility purposes.
 
+## --formatWithPrettier
+
+<Callout emoji="💡">Apply additional output formatting with Prettier.</Callout>
+
+> Accepts a boolean value. Defaults to `false`.
+
+`typedoc-plugin-markdown` plugin generates well-formatted code, however, integrating the popular formatting package [Prettier](https://prettier.io/) can provide additional enhancements, such as:
+
+- Formats code inside fenced blocks using the respective Prettier configuration for that language.
+- Aligns markdown table cells.
+- Removes unnecessary escape characters.
+- Wraps long lines of text to fit within a configurable line width.
+
+Please note that Prettier is not a dependency of this plugin and must be installed in your project for this option to work.
+
+If Prettier is not already installed please `npm i prettier --save-dev` to use this option.
+
+```json filename="typedoc.json"
+{
+  "formatWithPrettier": false
+}
+```
+
+## --prettierConfigFile
+
+<Callout emoji="💡">
+  Specify a custom Prettier configuration file location.
+</Callout>
+
+> Defaults to `"undefined"`.
+
+By default Prettier uses the options resolved from a discovered Prettier [configuration file](https://prettier.io/docs/en/configuration.html).
+
+Use this option to specify a separate Prettier configuration file in a custom location.
+
+Please note this option is only applicable when `formatWithPrettier` is set to `true`.
+
+```json filename="typedoc.json"
+{
+  "prettierConfigFile": "./path/to/.prettierrc.json"
+}
+```
+
 ## --sanitizeComments
 
 <Callout emoji="💡">Sanitize HTML and JSX inside JsDoc comments.</Callout>

docs/pages/plugins/remark/useful-plugins.mdx

@@ -2,26 +2,6 @@
 
 Here are some [remark plugins](https://github.com/remarkjs/remark/blob/main/doc/plugins.md) that might be useful.
 
-## unified-prettier
-
-https://github.com/remcohaszing/unified-prettier
-
-Improving code formatting by parsing with [Prettier](https://prettier.io/):
-
-- Produces a consistent format.
-- Removes unnecessary escape characters.
-- Formats code blocks inside comment fenced blocks.
-
-```sh npm2yarn
-npm install unified-prettier --save-dev
-```
-
-```json filename="typedoc.json"
-{
-  "remarkPlugins": ["unified-prettier"]
-}
-```
-
 ## remark-toc
 
 https://github.com/remarkjs/remark-toc

package-lock.json

@@ -52,7 +52,6 @@
     "tsx": "^4.19.2",
     "typedoc": "^0.27.0-beta.2",
     "typescript": "^5.7.2",
-    "typescript-eslint": "^8.15.0",
-    "unified-prettier": "^2.0.1"
+    "typescript-eslint": "^8.16.0"
   }
 }

package.json

@@ -14,6 +14,7 @@ declare module 'typedoc' {
     expandParameters: boolean;
     fileExtension: string;
     flattenOutputFiles: boolean;
+    formatWithPrettier: boolean;
     hideBreadcrumbs: boolean;
     hideGroupHeadings: boolean;
     hidePageHeader: boolean;
@@ -38,6 +39,7 @@ declare module 'typedoc' {
     outputFileStrategy: 'members' | 'modules';
     parametersFormat: 'list' | 'table' | 'htmlTable';
     preserveAnchorCasing: boolean;
+    prettierConfigFile: string;
     propertiesFormat: 'list' | 'table' | 'htmlTable';
     propertyMembersFormat: 'list' | 'table' | 'htmlTable';
     publicPath: string;

packages/typedoc-plugin-markdown/src/_typedoc.d.ts

@@ -551,6 +551,42 @@ export const tableColumnSettings: Partial<DeclarationOption> = {
   },
 };
 
+/**
+ * `typedoc-plugin-markdown` plugin generates well-formatted code, however, integrating the popular formatting package [Prettier](https://prettier.io/) can provide additional enhancements, such as:
+ *
+ * - Formats code inside fenced blocks using the respective Prettier configuration for that language.
+ * - Aligns markdown table cells.
+ * - Removes unnecessary escape characters.
+ * - Wraps long lines of text to fit within a configurable line width.
+ *
+ * Please note that Prettier is not a dependency of this plugin and must be installed in your project for this option to work.
+ *
+ * If Prettier is not already installed please `npm i prettier --save-dev` to use this option.
+ *
+ * @category Utility
+ */
+export const formatWithPrettier: Partial<DeclarationOption> = {
+  help: 'Apply additional output formatting with Prettier.',
+  type: ParameterType.Boolean,
+  defaultValue: false,
+};
+
+/**
+ * By default Prettier uses the options resolved from a discovered Prettier [configuration file](https://prettier.io/docs/en/configuration.html).
+ *
+ * Use this option to specify a separate Prettier configuration file in a custom location.
+ *
+ * Please note this option is only applicable when `formatWithPrettier` is set to `true`.
+ *
+ * @example "./path/to/.prettierrc.json"
+ *
+ * @category Utility
+ */
+export const prettierConfigFile: Partial<DeclarationOption> = {
+  help: 'Specify a custom Prettier configuration file location.',
+  type: ParameterType.Path,
+};
+
 /**
  * *Please note this options does not affect the rendering of inline code or code blocks (using single/triple backticks).*
  *