[Fixes j-morano#31] Added option to use custom function for formattin…

…g filenames.

README.md

@@ -104,6 +104,7 @@ require("buffer_manager").setup({ })
 * `highlight`: highlight for the window. Format: `from1:to1,from2:to2`. E.g. `Normal:MyCustomNormal`. (See `:help winhighlight`.)
 * `win_extra_options`: extra options for the menu window. E.g. `{ relativenumber = true }`. (See `:help option-list`.)
 * `borderchars`: border characters for the menu window.
+* `format_function`: support for custom function to format buffer names. The function should receive a string and return a string. This option is incompatible with `short_file_names`. To use it, `short_file_names` must be set to `false`. By default, the function is `nil`, which means no special formatting is applied.
 
 
 In addition, you can specify a custom color for the modified buffers, by setting the highlight group `BufferManagerModified` to the desired color. For example:
@@ -129,6 +130,7 @@ vim.api.nvim_set_hl(0, "BufferManagerModified", { fg = "#0000af" })
  highlight = "",
  win_extra_options = {},
  borderchars = { "─", "│", "─", "│", "╭", "╮", "╯", "╰" },
+ format_function = nil,
  }
 ```
 

lua/buffer_manager/init.lua

@@ -53,6 +53,7 @@ function M.setup(config)
  highlight = "",
  win_extra_options = {},
  borderchars = { "─", "│", "─", "│", "╭", "╮", "╯", "╰" },
+ format_function = nil,
  }
 
  local complete_config = merge_tables(default_config, config)

lua/buffer_manager/ui.lua

@@ -114,6 +114,8 @@ local function get_mark_by_name(name, specific_marks)
  if config.short_file_names then
  ref_name = utils.get_short_file_name(mark.filename, current_short_fns)
  current_short_fns[ref_name] = true
+ elseif config.format_function then
+ ref_name = config.format_function(mark.filename)
  else
  ref_name = utils.normalize_path(mark.filename)
  end
@@ -305,6 +307,8 @@ function M.toggle_quick_menu()
  if config.short_file_names then
  display_filename = utils.get_short_file_name(display_filename, current_short_fns)
  current_short_fns[display_filename] = true
+ elseif config.format_function then
+ display_filename = config.format_function(display_filename)
  else
  display_filename = utils.normalize_path(display_filename)
  end