Add ability to use nerdfont.vim plugin to display devicons

README.md

@@ -141,7 +141,7 @@ tabline works and looks like.
 | `g:buffet_separator` | `''` | The character to be used for separating items in the tabline |
 | `g:buffet_show_index` | `0` | Set to `1`, show index before each buffer name. Index is useful for switching between buffers quickly |
 | `g:buffet_max_plug` | `10` | The maximum number of `<Plug>BuffetSwitch` provided. Mapping will be disabled if the option is set to `0` |
-| `g:buffet_use_devicons` | `1` | If set to `1` and [`vim-devicons`](https://github.com/ryanoasis/vim-devicons) plugin is installed, show file type icons for each buffer in the tabline. If the `vim-devicons` plugin is not present, the option will automatically default to `0` (*Note: you need to have `vim-devicons` loaded before `vim-buffet` in order to make this work*) |
+| `g:buffet_use_devicons` | `1` | If set to `1` and either [`vim-devicons`](https://github.com/ryanoasis/vim-devicons) or [`nerdfont.vim`](https://github.com/lambdalisue/nerdfont.vim) plugin is installed, show file type icons for each buffer in the tabline. If neither plugin is present, the option will automatically default to `0`. |
 | `g:buffet_tab_icon` | `'#'` | The character to be used as an icon for the tab items in the tabline |
 | `g:buffet_new_buffer_name` | `'*'` | The character to be shown as the name of a new buffer |
 | `g:buffet_modified_icon` | `'+'` | The character to be shown by the name of a modified buffer |

autoload/buffet.vim

@@ -269,7 +269,11 @@ function! s:Render()
  let trunc_len = left_trunc_len + right_trunc_len
 
  let capacity = &columns - tabs_len - trunc_len - 5
- let buffer_padding = 1 + (g:buffet_use_devicons ? 1+1 : 0) + 1 + sep_len
+
+ let devicon_func = buffet#get_devicon_func()
+ let use_devicon = len(devicon_func) > 0
+
+ let buffer_padding = 1 + (use_devicon ? 1+1 : 0) + 1 + sep_len
 
  let elements = s:GetAllElements(capacity, buffer_padding)
 
@@ -293,8 +297,8 @@ function! s:Render()
  endif
 
  let icon = ""
- if g:buffet_use_devicons && s:IsBufferElement(elem)
- let icon = " " . WebDevIconsGetFileTypeSymbol(elem.value)
+ if use_devicon && s:IsBufferElement(elem)
+ let icon = " " . call(devicon_func, [elem.value])
  elseif elem.type == "Tab"
  let icon = " " . g:buffet_tab_icon
  endif
@@ -430,3 +434,19 @@ function! buffet#bonly(bang, buffer)
  call buffet#bwipe(a:bang, b)
  endfor
 endfunction
+
+function! buffet#get_devicon_func()
+ if !exists("g:buffet_devicon_func")
+ if !get(g:, "buffet_use_devicons", 1)
+ let devicon_func = ""
+ elseif exists("*WebDevIconsGetFileTypeSymbol")
+ let devicon_func = "WebDevIconsGetFileTypeSymbol"
+ elseif exists("*nerdfont#find")
+ let devicon_func = "nerdfont#find"
+ else
+ let devicon_func = ""
+ endif
+ let g:buffet_devicon_func = devicon_func
+ endif
+ return g:buffet_devicon_func
+endfunction

plugin/buffet.vim

@@ -31,16 +31,6 @@ let g:buffet_show_index = get(g:, "buffet_show_index", 0)
 
 let g:buffet_max_plug = get(g:, "buffet_max_plug", 10)
 
-if get(g:, "buffet_use_devicons", 1)
- if !exists("*WebDevIconsGetFileTypeSymbol")
- let g:buffet_use_devicons = 0
- else
- let g:buffet_use_devicons = 1
- endif
-else
- let g:buffet_use_devicons = 0
-endif
-
 if !exists("g:buffet_modified_icon")
  let g:buffet_modified_icon = "+"
 endif