mirror of
https://github.com/neovim/neovim.git
synced 2025-09-06 11:28:22 +00:00
64afa93187
Problem: If users delete a line containing extmark, it will move to the next line, which could highlight the next line in an unwanted way. Solution: - Use `invalidate` field in `nvim_buf_set_extmark()` to prevent the extmark from moving. - Also save from "priority" hacking, since we can check if the extmark is valid in `nvim_buf_get_extmarks()` now.
87 lines
2.6 KiB
Lua
87 lines
2.6 KiB
Lua
---@class nvim.TutorMetadata
|
|
---@field expect table<string, string|-1>
|
|
|
|
---@alias nvim.TutorExtmarks table<string, string>
|
|
|
|
---@type nvim.TutorExtmarks?
|
|
vim.b.tutor_extmarks = vim.b.tutor_extmarks
|
|
|
|
---@type nvim.TutorMetadata?
|
|
vim.b.tutor_metadata = vim.b.tutor_metadata
|
|
|
|
local sign_text_correct = '✓'
|
|
local sign_text_incorrect = '✗'
|
|
local tutor_mark_ns = vim.api.nvim_create_namespace('nvim.tutor.mark')
|
|
local tutor_hl_ns = vim.api.nvim_create_namespace('nvim.tutor.hl')
|
|
|
|
local M = {}
|
|
|
|
---@param line integer 1-based
|
|
local function check_line(line)
|
|
if vim.b.tutor_metadata and vim.b.tutor_metadata.expect and vim.b.tutor_extmarks then
|
|
local ctext = vim.fn.getline(line)
|
|
|
|
---@type vim.api.keyset.get_extmark_item[]
|
|
local extmarks = vim
|
|
.iter(vim.api.nvim_buf_get_extmarks(
|
|
0,
|
|
tutor_mark_ns,
|
|
{ line - 1, 0 },
|
|
{ line - 1, -1 }, -- the extmark can move to col > 0 if users insert text there
|
|
{ details = true }
|
|
))
|
|
:filter(function(extmark)
|
|
return not extmark[4].invalid
|
|
end)
|
|
:totable()
|
|
|
|
for _, extmark in ipairs(extmarks) do
|
|
local mark_id = extmark[1]
|
|
local expct = vim.b.tutor_extmarks[tostring(mark_id)]
|
|
local expect = vim.b.tutor_metadata.expect[expct]
|
|
local is_correct = expect == -1 or ctext == expect
|
|
|
|
vim.api.nvim_buf_set_extmark(0, tutor_mark_ns, line - 1, 0, {
|
|
id = mark_id,
|
|
sign_text = is_correct and sign_text_correct or sign_text_incorrect,
|
|
sign_hl_group = is_correct and 'tutorOK' or 'tutorX',
|
|
invalidate = true,
|
|
})
|
|
end
|
|
end
|
|
end
|
|
|
|
function M.apply_marks()
|
|
vim.cmd [[hi! link tutorExpect Special]]
|
|
if vim.b.tutor_metadata and vim.b.tutor_metadata.expect then
|
|
vim.b.tutor_extmarks = {}
|
|
for expct, _ in pairs(vim.b.tutor_metadata.expect) do
|
|
---@diagnostic disable-next-line: assign-type-mismatch
|
|
local lnum = tonumber(expct) ---@type integer
|
|
vim.api.nvim_buf_set_extmark(0, tutor_hl_ns, lnum - 1, 0, {
|
|
line_hl_group = 'tutorExpect',
|
|
invalidate = true,
|
|
})
|
|
|
|
local mark_id = vim.api.nvim_buf_set_extmark(0, tutor_mark_ns, lnum - 1, 0, {})
|
|
|
|
-- Cannot edit field of a Vimscript dictionary from Lua directly, see `:h lua-vim-variables`
|
|
---@type nvim.TutorExtmarks
|
|
local tutor_extmarks = vim.b.tutor_extmarks
|
|
tutor_extmarks[tostring(mark_id)] = expct
|
|
vim.b.tutor_extmarks = tutor_extmarks
|
|
|
|
check_line(lnum)
|
|
end
|
|
end
|
|
end
|
|
|
|
function M.apply_marks_on_changed()
|
|
if vim.b.tutor_metadata and vim.b.tutor_metadata.expect and vim.b.tutor_extmarks then
|
|
local lnum = vim.fn.line('.')
|
|
check_line(lnum)
|
|
end
|
|
end
|
|
|
|
return M
|