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codesnap.nvim/lua/codesnap/utils/visual.lua

68 lines
2.0 KiB
Lua

local visual_utils = {}
-- Get all the lines from "from" to "to" and return them as a single string
-- If "from" and "to" are the same, return the line at "from"
local function get_whole_lines(from, to)
local lines = {}
if from == to then
table.insert(lines, vim.api.nvim_buf_get_lines(0, from - 1, from, false)[1])
else
for i = from, to do
table.insert(lines, vim.api.nvim_buf_get_lines(0, i - 1, i, false)[1])
end
end
return table.concat(lines, "\n")
end
function visual_utils.get_start_line_number()
return vim.fn.line("'<")
end
function visual_utils.get_end_line_number()
return vim.fn.line("'>")
end
function visual_utils.get_selected_lines()
return vim.fn.getline("'<", "'>")
end
function visual_utils.get_selected_text()
return table.concat(visual_utils.get_selected_lines(), "\n")
end
function visual_utils.get_selected_text_realtime()
local start_pos = vim.fn.getpos("v")
local end_pos = vim.fn.getpos(".")
-- We switch the start and end positions if the start is after the end line or character
-- This way we can always select from the top down and from left to right
if start_pos[2] > end_pos[2] or start_pos[3] > end_pos[3] then
start_pos, end_pos = end_pos, start_pos
end
if vim.api.nvim_get_mode().mode == "V" then
return get_whole_lines(start_pos[2], end_pos[2])
end
if start_pos[2] == end_pos[2] then
return vim.api.nvim_buf_get_lines(0, start_pos[2] - 1, start_pos[2], false)[1]:sub(start_pos[3], end_pos[3] - 1)
end
local selected_text = {}
for i = start_pos[2], end_pos[2] do
local line_text = vim.api.nvim_buf_get_lines(0, i - 1, i, false)[1]
if i == start_pos[2] then
line_text = line_text:sub(start_pos[3])
end
-- If select last line, there need to get column of current cursor
if i == end_pos[2] then
line_text = line_text:sub(1, end_pos[3] - 1)
end
table.insert(selected_text, line_text)
end
return table.concat(selected_text, "\n")
end
return visual_utils