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Diffstat (limited to 'runtime/doc/develop.txt')
| -rw-r--r-- | runtime/doc/develop.txt | 90 |
1 files changed, 86 insertions, 4 deletions
diff --git a/runtime/doc/develop.txt b/runtime/doc/develop.txt index 90c2e30771..09c5b7c4ad 100644 --- a/runtime/doc/develop.txt +++ b/runtime/doc/develop.txt @@ -143,6 +143,87 @@ DOCUMENTATION *dev-doc* /// @param dirname The path fragment before `pend` < +C docstrings ~ + +Nvim API documentation lives in the source code, as docstrings (Doxygen +comments) on the function definitions. The |api| :help is generated +from the docstrings defined in src/nvim/api/*.c. + +Docstring format: +- Lines start with `///` +- Special tokens start with `@` followed by the token name: + `@note`, `@param`, `@returns` +- Limited markdown is supported. + - List-items start with `-` (useful to nest or "indent") +- Use `<pre>` for code samples. + +Example: the help for |nvim_open_win()| is generated from a docstring defined +in src/nvim/api/vim.c like this: > + + /// Opens a new window. + /// ... + /// + /// Example (Lua): window-relative float + /// <pre> + /// vim.api.nvim_open_win(0, false, + /// {relative='win', row=3, col=3, width=12, height=3}) + /// </pre> + /// + /// @param buffer Buffer to display + /// @param enter Enter the window + /// @param config Map defining the window configuration. Keys: + /// - relative: Sets the window layout, relative to: + /// - "editor" The global editor grid. + /// - "win" Window given by the `win` field. + /// - "cursor" Cursor position in current window. + /// ... + /// @param[out] err Error details, if any + /// + /// @return Window handle, or 0 on error + + +Lua docstrings ~ + *dev-lua-doc* +Lua documentation lives in the source code, as docstrings on the function +definitions. The |lua-vim| :help is generated from the docstrings. + +Docstring format: +- Lines in the main description start with `---` +- Special tokens start with `--@` followed by the token name: + `--@see`, `--@param`, `--@returns` +- Limited markdown is supported. + - List-items start with `-` (useful to nest or "indent") +- Use `<pre>` for code samples. + +Example: the help for |vim.paste()| is generated from a docstring decorating +vim.paste in src/nvim/lua/vim.lua like this: > + + --- Paste handler, invoked by |nvim_paste()| when a conforming UI + --- (such as the |TUI|) pastes text into the editor. + --- + --- Example: To remove ANSI color codes when pasting: + --- <pre> + --- vim.paste = (function() + --- local overridden = vim.paste + --- ... + --- end)() + --- </pre> + --- + --@see |paste| + --- + --@param lines ... + --@param phase ... + --@returns false if client should cancel the paste. + + +LUA *dev-lua* + +- Keep the core Lua modules |lua-stdlib| simple. Avoid elaborate OOP or + pseudo-OOP designs. Plugin authors just want functions to call, they don't + want to learn a big, fancy inheritance hierarchy. So we should avoid complex + objects: tables are usually better. + + API *dev-api* Use this template to name new API functions: @@ -155,10 +236,11 @@ with a {thing} that groups functions under a common concept). Use existing common {action} names if possible: add Append to, or insert into, a collection - get Get a thing (or group of things by query) - set Set a thing (or group of things) del Delete a thing (or group of things) + exec Execute code + get Get a thing (or group of things by query) list Get all things + set Set a thing (or group of things) Use consistent names for {thing} in all API functions. E.g. a buffer is called "buf" everywhere, not "buffer" in some places and "buf" in others. @@ -268,8 +350,8 @@ External UIs are expected to implement these common features: chords (<C-,> <C-Enter> <C-S-x> <D-x>) and patterns ("shift shift") that do not potentially conflict with Nvim defaults, plugins, etc. - Consider the "option_set" |ui-global| event as a hint for other GUI - behaviors. UI-related options ('guifont', 'ambiwidth', …) are published in - this event. + behaviors. Various UI-related options ('guifont', 'ambiwidth', …) are + published in this event. See also "mouse_on", "mouse_off". vim:tw=78:ts=8:noet:ft=help:norl: |