nvim: Add bibtex source to cmp autocompletion

Added simple bibtex source display: Will show the bibtex entries
existing in the bib file set through `bibliography: path/to/mine.bib`.
Shows author, title, date on hovering.

nvim/.config/nvim/lua/plug/_cmp.lua

@@ -68,14 +68,17 @@ cmp.setup({
     },
     sources = cmp.config.sources({
         { name = 'path' }, { name = 'nvim_lsp' }, { name = 'treesitter' },
-        { name = 'tmux' }, { name = 'vsnip' }, { name = 'latex_symbols' },
-        { name = 'vCard' }, { name = 'nvim_lua' }
+        { name = 'cmp_pandoc' }, { name = 'tmux' }, { name = 'vsnip' },
+        { name = 'latex_symbols' }, { name = 'vCard' }, { name = 'nvim_lua' }
     }, { { name = 'buffer' }, { name = 'spell' } })
 })
 
 if vim.o.ft == 'clap_input' and vim.o.ft == 'guihua' and vim.o.ft ==
     'guihua_rust' then require 'cmp'.setup.buffer { completion = { enable = false } } end
 
+-- set up pandoc bibtex source generation
+require 'cmp_pandoc'.setup()
+
 -- Use buffer source for `/` search
 cmp.setup.cmdline('/', {
     mapping = cmp.mapping.preset.cmdline(),

nvim/.config/nvim/lua/plugins.lua

@@ -236,6 +236,10 @@ require("packer").startup(function()
 
         }
     }
+    use {
+        'aspeddro/cmp-pandoc.nvim',
+        requires = {'nvim-lua/plenary.nvim', 'jbyuki/nabla.nvim'}
+    }
     require('plug._cmp')
 
     -- Automatically set up your configuration after cloning packer.nvim