added 'blines' provider (closes issue #77)

README.md

@@ -120,6 +120,7 @@ nnoremap <c-P> <cmd>lua require('fzf-lua').files()<CR>
 | Command | List |
 | --- | --- |
 |`buffers`|open buffers|
+|`blines`|current buffer lines|
 |`files`|`find` or `fd` on a path|
 |`oldfiles`|opened files history|
 |`quickfix`|quickfix list|
@@ -367,6 +368,7 @@ require'fzf-lua'.setup {
     cwd_only          = false,
   },
   buffers = {
+    -- previewer      = false,        -- disable the builtin previewer?
     prompt            = 'Buffers❯ ',
     file_icons        = true,         -- show file icons?
     color_icons       = true,         -- colorize file|git icons
@@ -379,6 +381,16 @@ require'fzf-lua'.setup {
       ["ctrl-x"]      = actions.buf_del,
     }
   },
+  blines = {
+    previewer         = "builtin",    -- set to 'false' to disable
+    prompt            = 'BLines❯ ',
+    actions = {
+      ["default"]     = actions.buf_edit,
+      ["ctrl-s"]      = actions.buf_split,
+      ["ctrl-v"]      = actions.buf_vsplit,
+      ["ctrl-t"]      = actions.buf_tabedit,
+    }
+  },
   colorschemes = {
     prompt            = 'Colorschemes❯ ',
     live_preview      = true,       -- apply the colorscheme on preview?

lua/fzf-lua/config.lua

@@ -291,6 +291,16 @@ M.globals.buffers = {
         ["ctrl-x"]        = actions.buf_del,
     },
   }
+M.globals.blines = {
+    previewer             = "builtin",
+    prompt                = 'BLines> ',
+    actions = {
+        ["default"]       = actions.buf_edit,
+        ["ctrl-s"]        = actions.buf_split,
+        ["ctrl-v"]        = actions.buf_vsplit,
+        ["ctrl-t"]        = actions.buf_tabedit,
+    },
+  }
 M.globals.tags = {
     previewer             = function() return M.globals.default_previewer end,
     prompt                = 'Tags> ',

lua/fzf-lua/init.lua

@@ -67,6 +67,7 @@ M.oldfiles = require'fzf-lua.providers.oldfiles'.oldfiles
 M.quickfix = require'fzf-lua.providers.quickfix'.quickfix
 M.loclist = require'fzf-lua.providers.quickfix'.loclist
 M.buffers = require'fzf-lua.providers.buffers'.buffers
+M.blines = require'fzf-lua.providers.buffers'.blines
 M.help_tags = require'fzf-lua.providers.helptags'.helptags
 M.man_pages = require'fzf-lua.providers.manpages'.manpages
 M.colorschemes = require'fzf-lua.providers.colorschemes'.colorschemes

lua/fzf-lua/providers/buffers.lua

@@ -150,4 +150,49 @@ M.buffers = function(opts)
   end)()
 end
 
+M.blines = function(opts)
+
+  opts = config.normalize_opts(opts, config.globals.blines)
+
+  local bufnr = vim.api.nvim_get_current_buf()
+  local bufnrstr = utils.ansi_codes.magenta(tostring(bufnr))
+
+  coroutine.wrap(function()
+    local items = {}
+
+    if api.nvim_buf_is_loaded(bufnr) then
+      local data = api.nvim_buf_get_lines(bufnr, 0, -1, false)
+      for l, text in ipairs(data) do
+        table.insert(items, ("[%s]:%s: %s"):format(
+          bufnrstr,
+          utils.ansi_codes.green(tostring(l)),
+          text))
+      end
+    end
+
+    -- ignore bufnr when searching
+    -- disable multi-select
+    opts.nomulti = true
+    opts._fzf_cli_args = "--delimiter=':' --nth 2,-1"
+
+    local selected = core.fzf(opts, items)
+
+    if not selected then return end
+
+    -- get the line number
+    local line = tonumber(selected[2]:match(":(%d+):"))
+
+    if #selected > 1 then
+      for i = 2, #selected do
+          selected[i] = tostring(getbufnumber(selected[i]))
+      end
+    end
+
+    actions.act(opts.actions, selected)
+
+    if line then vim.api.nvim_win_set_cursor(0, {line, 0}) end
+
+  end)()
+end
+
 return M