Fzf appends :0 or :1 to all my entries

[litoj]

I create inputs to fzf_exec like this:

fzf_cb(table.concat({
  tostring(i),
  ansi.magenta(node:type()),
  ansi.green(tostring(start_row)),
  ansi.green(tostring(start_col)),
  lines[start_row]:gsub('^\t', indent),
}, ':'), function() coroutine.resume(co) end)

fzf shows the entries like:

> 50:function:640:1:  function previewer:new(o, opts, fzf_win):1
  46:function:614:7:  local function producer(fzf_cb):1
  45:function:606:0:function M.fzf_jump(targets, opts):0

it appends the :1 at the end whenever the column number !=0, otherwise it appends :0

What can I do to get rid of this?

[ibhagwan]

This isn’t the entirety of the code, you’re calling something that adds the line at the end, fzf_cb by itself won’t add line number numbers, are you calling make_entry.file?

[litoj]

No, I thought I did, but I didn't end up actually using it.

The full code looks like this: https://github.com/JosefLitos/syntax-tree-surfer/blob/c8e71bd3f60fbf1ceb355efa3a6cf03f2ffce027/lua/syntax-tree-surfer/init.lua#L606-L682

[ibhagwan]

Oh I have a guess why this happens, you’re feeding table.concat directly into fzf_cb, table.concat probably returns a tuple, the concatenated string and a number, use local entry = table.concat(…) and then feed entry into fzf_cb, that way you guarantee only one value.

[ibhagwan]

I found your problem, you’re using gsub directly inside the table which does return a tuple (not table.concat as I previously assumed), both gsub return values get unpacked into the table and then used as the extra fields:

Change this:

lines[start_row]:gsub('^\t', indent)

To this:

-- This way we extract only the first tuple ret val
({ lines[start_row]:gsub('^\t', indent) })[1]

[litoj]

Oh, I totally forgot about that, thank you!

BTW your plugin is awesome (not to mention fzf itself). I used to use Telescope, but felt like getting further away from the cli, so I wanted to find something closer to the cli tools already available. This fits it perfectly and does everything I could want.

[ibhagwan]

Ty @JosefLitos ❤️