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local vim = assert(vim)
local M = {}
local cons = "tnshrdlcumwfgypkbvjxqz" -- 21
local vowel = "aeiou" -- 5
local hsel1 = "tnshrdlcumwfgypkbvjxqz" -- 21
local hsel2 = "aeiou" -- 5
local function char_at(s, i)
local m = (i % #s) + 1
return string.sub(s, m, m)
end
M.open_vertical = function()
local current_win = vim.api.nvim_get_current_win()
local height = vim.api.nvim_win_get_height(current_win)
local topline = vim.fn.line('w0')
M.row_map = {}
local bufnr = vim.api.nvim_create_buf(0, 1)
local line = 0
local text = {}
while line < height do
local t = char_at(cons, line) .. char_at(vowel, line)
table.insert(text, ' ' .. t)
M.row_map[t] = topline + line
line = line + 1
end
vim.api.nvim_buf_set_lines(bufnr, 0, -1, 0, text)
local vert_win = vim.api.nvim_open_win(
bufnr,
false,
{
relative = 'win',
row = 0,
col = 0,
width = 4,
height = height
})
vim.api.nvim_win_set_option(vert_win, "winhighlight", "Normal:Salmon")
vim.api.nvim_win_set_option(vert_win, "number", false) -- Hide line numbers
vim.api.nvim_win_set_option(vert_win, "relativenumber", false) -- Hide relative numbers
vim.api.nvim_win_set_option(vert_win, "wrap", false) -- Disable wrapping
vim.api.nvim_win_set_option(vert_win, "signcolumn", "no") -- Hide sign column
return vert_win
end
M.open_horiz = function()
local current_win = vim.api.nvim_get_current_win()
local curpos = vim.api.nvim_win_get_cursor(0)
local topline = vim.fn.line('w0')
local width = vim.api.nvim_win_get_width(current_win)
local width_of_garbage = vim.fn.getwininfo(current_win)[1].textoff
M.horiz_bufnr = vim.api.nvim_create_buf(0, 1)
local col = 0
-- local bottom_line = ""
-- local top_line = ""
local line = ''
local v = ''
local c = nil
local i = 0
M.col_map = {}
while col < width do
v = char_at(hsel1, i)
if c then
if M.col_map [c .. v] then
break
end
M.col_map[c .. v] = col - 1
end
c = char_at(hsel2, i)
if M.col_map [v .. c] then
break
end
M.col_map[v .. c] = col
line = line .. v .. c
col = col + 2
i = i + 1
end
vim.api.nvim_buf_set_lines(M.horiz_bufnr, 0, -1, 0, { line })
M.horiz_line = line
local horiz_win = vim.api.nvim_open_win(
M.horiz_bufnr,
false,
{
relative = 'win',
row = curpos[1] - topline + 1,
col = width_of_garbage, -- -curpos[2],
width = width - width_of_garbage,
height = 1
})
vim.api.nvim_win_set_option(horiz_win, "winhighlight", "Normal:Salmon")
vim.api.nvim_win_set_option(horiz_win, "number", false) -- Hide line numbers
vim.api.nvim_win_set_option(horiz_win, "relativenumber", false) -- Hide relative numbers
vim.api.nvim_win_set_option(horiz_win, "wrap", false) -- Disable wrapping
vim.api.nvim_win_set_option(horiz_win, "signcolumn", "no") -- Hide sign column
return horiz_win
end
M.filter_horiz_string = function(ch)
local new_horiz_line = ''
local i = 1
while i <= #M.horiz_line do
local curch = char_at(M.horiz_line, i - 1)
if curch == ch then
new_horiz_line = new_horiz_line .. char_at(M.horiz_line, i)
i = i + 1
end
new_horiz_line = new_horiz_line .. ' '
i = i + 1
end
vim.api.nvim_buf_set_lines(M.horiz_bufnr, 0, -1, 0, { new_horiz_line })
end
local function next_char(callback)
local timer = vim.loop.new_timer()
timer:start(0, 0, vim.schedule_wrap(function()
local ch = vim.fn.nr2char(vim.fn.getchar())
callback(ch)
end))
end
M.run = function()
local w1 = M.open_vertical()
local current_pos = vim.api.nvim_win_get_cursor(0)
next_char(function(vch1)
next_char(function(vch2)
vim.api.nvim_buf_delete(vim.api.nvim_win_get_buf(w1), { force = true })
-- vim.api.nvim_win_close(w1, 1)
local r = M.row_map[vch1 .. vch2]
if r then
vim.api.nvim_win_set_cursor(0, {r, current_pos[2]})
local w2 = M.open_horiz()
next_char(function (hch1)
M.filter_horiz_string(hch1)
vim.cmd("redraw!")
local hch2 = vim.fn.nr2char(vim.fn.getchar())
local c = M.col_map[hch1 .. hch2]
vim.api.nvim_buf_delete(vim.api.nvim_win_get_buf(w2), { force = true })
-- vim.api.nvim_win_close(w2, 1)
if c then
vim.api.nvim_win_set_cursor(0, {r, c})
end
end)
end
end)
end)
end
return M
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