From 64ccfdaafef56b451e3a5eed94367fad93978ec8 Mon Sep 17 00:00:00 2001 From: zeertzjq Date: Mon, 21 Aug 2023 11:22:25 +0800 Subject: vim-patch:8.1.2047: cannot check the current state Problem: Cannot check the current state. Solution: Add the state() function. https://github.com/vim/vim/commit/0e57dd859ecb1e8a3b91509d2f4343e839340eb8 Co-authored-by: Bram Moolenaar --- runtime/lua/vim/_meta/vimfn.lua | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) (limited to 'runtime/lua/vim') diff --git a/runtime/lua/vim/_meta/vimfn.lua b/runtime/lua/vim/_meta/vimfn.lua index 300210b296..4665f71052 100644 --- a/runtime/lua/vim/_meta/vimfn.lua +++ b/runtime/lua/vim/_meta/vimfn.lua @@ -5713,6 +5713,7 @@ function vim.fn.mkdir(name, flags, prot) end --- If [expr] is supplied and it evaluates to a non-zero Number or --- a non-empty String (|non-zero-arg|), then the full mode is --- returned, otherwise only the first letter is returned. +--- Also see |state()|. --- --- n Normal --- no Operator-pending @@ -8744,6 +8745,34 @@ function vim.fn.sqrt(expr) end --- @return any function vim.fn.srand(expr) end +--- Return a string which contains characters indicating the +--- current state. Mostly useful in callbacks that want to do +--- work that may not always be safe. Roughly this works like: +--- - callback uses state() to check if work is safe to do. +--- If yes, then do it right away. +--- Otherwise add to work queue and add SafeState autocommand. +--- - When SafeState is triggered, check with state() if the work +--- can be done now, and if yes remove it from the queue and +--- execute. +--- Also see |mode()|. +--- +--- When {what} is given only characters in this string will be +--- added. E.g, this checks if the screen has scrolled: >vim +--- if state('s') != '' +--- +--- These characters indicate the state: +--- m halfway a mapping, :normal command, feedkeys() or +--- stuffed command +--- o operator pending or waiting for a command argument +--- a Insert mode autocomplete active +--- x executing an autocommand +--- c callback invoked (repeats for recursiveness up to "ccc") +--- s screen has scrolled for messages +--- +--- @param what? string +--- @return any +function vim.fn.state(what) end + --- With |--headless| this opens stdin and stdout as a |channel|. --- May be called only once. See |channel-stdio|. stderr is not --- handled by this function, see |v:stderr|. -- cgit