docs(gen): support language annotation in docstrings

src/nvim/api/autocmd.c

@@ -47,7 +47,7 @@ static int64_t next_autocmd_id = 1;
 /// Get all autocommands that match the corresponding {opts}.
 ///
 /// These examples will get autocommands matching ALL the given criteria:
-/// <pre>
+/// <pre>lua
 ///   -- Matches all criteria
 ///   autocommands = vim.api.nvim_get_autocmds({
 ///     group = "MyGroup",
@@ -367,7 +367,7 @@ cleanup:
 /// triggers: a callback function (Lua or Vimscript), or a command (like regular autocommands).
 ///
 /// Example using callback:
-/// <pre>
+/// <pre>lua
 ///     -- Lua function
 ///     local myluafun = function() print("This buffer enters") end
 ///
@@ -383,8 +383,7 @@ cleanup:
 /// Lua functions receive a table with information about the autocmd event as an argument. To use
 /// a function which itself accepts another (optional) parameter, wrap the function
 /// in a lambda:
-///
-/// <pre>
+/// <pre>lua
 ///     -- Lua function with an optional parameter.
 ///     -- The autocmd callback would pass a table as argument but this
 ///     -- function expects number|nil
@@ -397,7 +396,7 @@ cleanup:
 /// </pre>
 ///
 /// Example using command:
-/// <pre>
+/// <pre>lua
 ///     vim.api.nvim_create_autocmd({"BufEnter", "BufWinEnter"}, {
 ///       pattern = {"*.c", "*.h"},
 ///       command = "echo 'Entering a C or C++ file'",
@@ -405,7 +404,7 @@ cleanup:
 /// </pre>
 ///
 /// Example values for pattern:
-/// <pre>
+/// <pre>lua
 ///   pattern = "*.py"
 ///   pattern = { "*.py", "*.pyi" }
 /// </pre>
@@ -413,14 +412,14 @@ cleanup:
 /// Note: The `pattern` is passed to callbacks and commands as a literal string; environment
 /// variables like `$HOME` and `~` are not automatically expanded as they are by |:autocmd|.
 /// Instead, |expand()| such variables explicitly:
-/// <pre>
+/// <pre>lua
 ///   pattern = vim.fn.expand("~") .. "/some/path/*.py"
 /// </pre>
 ///
 /// Example values for event:
-/// <pre>
-///   "BufWritePre"
-///   {"CursorHold", "BufWritePre", "BufWritePost"}
+/// <pre>lua
+///   event = "BufWritePre"
+///   event = {"CursorHold", "BufWritePre", "BufWritePost"}
 /// </pre>
 ///
 /// @param event (string|array) The event or events to register this autocommand
@@ -703,7 +702,7 @@ cleanup:
 /// Create or get an autocommand group |autocmd-groups|.
 ///
 /// To get an existing group id, do:
-/// <pre>
+/// <pre>lua
 ///     local id = vim.api.nvim_create_augroup("MyGroup", {
 ///         clear = false
 ///     })

src/nvim/api/buffer.c

@@ -84,7 +84,7 @@ Integer nvim_buf_line_count(Buffer buffer, Error *err)
 ///
 /// Example (Lua): capture buffer updates in a global `events` variable
 /// (use "print(vim.inspect(events))" to see its contents):
-/// <pre>
+/// <pre>lua
 ///   events = {}
 ///   vim.api.nvim_buf_attach(0, false, {
 ///     on_lines=function(...) table.insert(events, {...}) end})

src/nvim/api/command.c

@@ -889,7 +889,7 @@ static void build_cmdline_str(char **cmdlinep, exarg_T *eap, CmdParseInfo *cmdin
 /// {command} is the replacement text or Lua function to execute.
 ///
 /// Example:
-/// <pre>
+/// <pre>vim
 ///    :call nvim_create_user_command('SayHello', 'echo "Hello world!"', {})
 ///    :SayHello
 ///    Hello world!

src/nvim/api/extmark.c

@@ -255,8 +255,7 @@ ArrayOf(Integer) nvim_buf_get_extmark_by_id(Buffer buffer, Integer ns_id,
 /// Region can be given as (row,col) tuples, or valid extmark ids (whose
 /// positions define the bounds). 0 and -1 are understood as (0,0) and (-1,-1)
 /// respectively, thus the following are equivalent:
-///
-/// <pre>
+/// <pre>lua
 ///   nvim_buf_get_extmarks(0, my_ns, 0, -1, {})
 ///   nvim_buf_get_extmarks(0, my_ns, [0,0], [-1,-1], {})
 /// </pre>
@@ -265,8 +264,7 @@ ArrayOf(Integer) nvim_buf_get_extmark_by_id(Buffer buffer, Integer ns_id,
 /// with `limit`, to get the first marks prior to a given position.)
 ///
 /// Example:
-///
-/// <pre>
+/// <pre>lua
 ///   local a   = vim.api
 ///   local pos = a.nvim_win_get_cursor(0)
 ///   local ns  = a.nvim_create_namespace('my-plugin')

src/nvim/api/vim.c

@@ -229,7 +229,7 @@ void nvim_set_hl_ns_fast(Integer ns_id, Error *err)
 /// nvim_feedkeys().
 ///
 /// Example:
-/// <pre>
+/// <pre>vim
 ///     :let key = nvim_replace_termcodes("<C-o>", v:true, v:false, v:true)
 ///     :call nvim_feedkeys(key, 'n', v:false)
 /// </pre>
@@ -1295,7 +1295,7 @@ void nvim_unsubscribe(uint64_t channel_id, String event)
 /// "#rrggbb" hexadecimal string.
 ///
 /// Example:
-/// <pre>
+/// <pre>vim
 ///     :echo nvim_get_color_by_name("Pink")
 ///     :echo nvim_get_color_by_name("#cbcbcb")
 /// </pre>
@@ -1437,12 +1437,12 @@ ArrayOf(Dictionary) nvim_get_keymap(String mode)
 /// Empty {rhs} is |<Nop>|. |keycodes| are replaced as usual.
 ///
 /// Example:
-/// <pre>
+/// <pre>vim
 ///     call nvim_set_keymap('n', ' <NL>', '', {'nowait': v:true})
 /// </pre>
 ///
 /// is equivalent to:
-/// <pre>
+/// <pre>vim
 ///     nmap <nowait> <Space><NL> <Nop>
 /// </pre>
 ///

src/nvim/api/win_config.c

@@ -55,13 +55,13 @@
 /// this should not be used to specify arbitrary WM screen positions.
 ///
 /// Example (Lua): window-relative float
-/// <pre>
+/// <pre>lua
 ///     vim.api.nvim_open_win(0, false,
 ///       {relative='win', row=3, col=3, width=12, height=3})
 /// </pre>
 ///
 /// Example (Lua): buffer-relative float (travels as buffer is scrolled)
-/// <pre>
+/// <pre>lua
 ///     vim.api.nvim_open_win(0, false,
 ///       {relative='win', width=12, height=3, bufpos={100,10}})
 /// </pre>