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| 1 | +---@class OrgBuffers |
| 2 | +---@field private _bufs table<string, number> |
| 3 | +local OrgBuffers = { |
| 4 | + _bufs = {}, |
| 5 | +} |
| 6 | + |
| 7 | +function OrgBuffers.init() |
| 8 | + local all_buffers = vim.api.nvim_list_bufs() |
| 9 | + local valid_buffers = {} |
| 10 | + for _, bufnr in ipairs(all_buffers) do |
| 11 | + local valid_buffer_name = OrgBuffers.get_valid_buffer_name(bufnr) |
| 12 | + if valid_buffer_name then |
| 13 | + valid_buffers[valid_buffer_name] = bufnr |
| 14 | + end |
| 15 | + end |
| 16 | + |
| 17 | + OrgBuffers._bufs = valid_buffers |
| 18 | + return OrgBuffers |
| 19 | +end |
| 20 | + |
| 21 | +---Return the buffer number for a given filename |
| 22 | +---If filename has org extension (.org or .org_archive), it will return the buffer number directly |
| 23 | +---If filename does not have org extension, it will try to find the buffer number and return |
| 24 | +---@param filename string absolute path to file |
| 25 | +function OrgBuffers.get_buffer_by_filename(filename) |
| 26 | + local resolved_filename = vim.fn.resolve(filename) |
| 27 | + |
| 28 | + if OrgBuffers._bufs[resolved_filename] then |
| 29 | + return OrgBuffers._bufs[resolved_filename] |
| 30 | + end |
| 31 | + |
| 32 | + -- If filename does not have an org extension, try to find the buf number and return it if filetype is org |
| 33 | + if not OrgBuffers._is_valid_file_name(resolved_filename) then |
| 34 | + local bufnr = vim.fn.bufnr(resolved_filename) |
| 35 | + if bufnr > -1 and vim.bo[bufnr].filetype == 'org' then |
| 36 | + return bufnr |
| 37 | + end |
| 38 | + end |
| 39 | + |
| 40 | + return -1 |
| 41 | +end |
| 42 | + |
| 43 | +---Add the buffer to the list |
| 44 | +---@param bufnr number |
| 45 | +function OrgBuffers.add(bufnr) |
| 46 | + local name = OrgBuffers.get_valid_buffer_name(bufnr) |
| 47 | + |
| 48 | + if name then |
| 49 | + OrgBuffers._bufs[name] = bufnr |
| 50 | + end |
| 51 | +end |
| 52 | + |
| 53 | +---Remove the buffer from the list |
| 54 | +---@param bufnr number |
| 55 | +function OrgBuffers.remove(bufnr) |
| 56 | + local name = vim.fn.resolve(vim.api.nvim_buf_get_name(bufnr)) |
| 57 | + |
| 58 | + if OrgBuffers._bufs[name] then |
| 59 | + OrgBuffers._bufs[name] = nil |
| 60 | + end |
| 61 | +end |
| 62 | + |
| 63 | +---Get valid buffer name if the buffer is an org file |
| 64 | +---@param bufnr number |
| 65 | +function OrgBuffers.get_valid_buffer_name(bufnr) |
| 66 | + local name = vim.fn.resolve(vim.fn.bufname(bufnr)) |
| 67 | + |
| 68 | + if OrgBuffers._is_valid_file_name(name) then |
| 69 | + return name |
| 70 | + end |
| 71 | + |
| 72 | + return nil |
| 73 | +end |
| 74 | + |
| 75 | +---Check if given filename has valid org extension |
| 76 | +---@private |
| 77 | +---@param filename string |
| 78 | +function OrgBuffers._is_valid_file_name(filename) |
| 79 | + filename = filename or '' |
| 80 | + return filename:sub(-4) == '.org' or filename:sub(-12) == '.org_archive' |
| 81 | +end |
| 82 | + |
| 83 | +return OrgBuffers |
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