Sometimes we need to transform the ast to make it easier to print, but it's currently done in the parser (markdown and yaml), which leads the output ast harder to use for external users (custom parser), adding `printer.preprocess` can solve this issue.
And also this way we could move the trailing newline for json from `ast-to-doc.js` to `language-js`.
So in the list, it says to use `prettier.config.js` as your file name for configuring prettier in js. But in the example it has `//.prettierrc.js`. This confused me so I tried both file names. Both these file names work to configure prettier so I updated the docs to reflect that.
* Add initial support for TOML in configuration files
* Missed brace
* Fix snapshots
* refactor: move loadToml to utils
* Use @iarna/toml
* Add tests for loadToml
* Fix test for CI
* Remove jest-extended
* Create snapshot for load-toml
* Add feat to docs
* lint docs
* Use @iarna/toml/parse-string
* Change path string
* Implement prettier.getFileInfo() method and --file-info CLI option
* Add empty line between functions in index.js
* Support --plugin-search-dirs / pluginSearchDirs() in --file-info / getFileInfo()
* Address review comments by @ikatyang
* Fix plugin API in globally installed Prettier and introduce optional --plugin-search-dir
* Use find-parent-dir instead of find-up and test autoloading (with mocked fn)
* Add two test cases where --plugin-search-dir is not .
* Do not mutate pluginSearchDirs argument in load-plugins.js
* Do not test automatic plugin resolution as mocking of "find-parent-dir" does not work due to rollup
* Document --plugin-search-dir / pluginSearchDirs and improve spacing
* Address @ikatyang's review comments
* Fix require path for third-party
* Undo alphabetic sorting of third-party scripts
* refactor(cli): defer default value applying
* Allow plugins to override default options
* Move "defaultOptions" to top level of plugin
* Simplify implementation
* Attach plugin name
* Add pluginOptions to cli help
* Update snapshots
* Code review (immutable style)
* Add test for help output
* Use snapshot test, fix Object.assign
* Refactor to immutable style
* Add test case for automatic plugin resolution
* Add tests for applying and overriding default opts
* Remove "since" option
* Only set defaults for CLI args when no pluginDefaults are present
* Revert workaround, rebase to #4045
* Add basic documentation for `options` and `defaultOptions`