How to get the return as a string. How to make a require and use the `<cword>`

Lua
1

I have a utils file where I have this:

M.bipolar = function()
  -- source: https://github.com/sagarrakshe/toggle-bool/blob/master/plugin/toggle_bool.py

  values = {
    ["true"] = "false",
    ["on"] = "off",
    ["yes"] = "no",
    ["1"] = "0",
    ["enable"] = "disable",
    ["enabled"] = "disabled",
    ["before"] = "after",
    ["first"] = "last"
  }

  function format_value(word, toggleWord)
    if word:upper() == word then
      toggleWord = toggleWord:upper()
    elseif word:sub(1, 1):upper() .. word:sub(2) == word then
      toggleWord = toggleWord:sub(1, 1):upper() .. toggleWord:sub(2)
    end
    return toggleWord
  end

  function toggle_bool_value(word)
    local toggleWord = word
    for key, value in pairs(values) do
      if string.lower(key) == word:lower() then
        toggleWord = value
        toggleWord = format_value(word, toggleWord)
        break
      elseif string.lower(value) == word:lower() then
        toggleWord = key
        toggleWord = format_value(word, toggleWord)
        break
      end
    end
    return toggleWord
  end
end

I would like to map a key to toggle the word under cursor

2

– the solution

-- https://github.com/sagarrakshe/toggle-bool/blob/master/plugin/toggle_bool.py

M.toggle_boolean_value_on_line = function()
  local values = {
    ["true"] = "false",
    ["on"] = "off",
    ["yes"] = "no",
    ["1"] = "0",
    ["enable"] = "disable",
    ["enabled"] = "disabled",
    ["before"] = "after",
    ["first"] = "last",
    ["up"] = "down",
  }

  local function format_value(word, toggleWord)
    if word:upper() == word then
      toggleWord = toggleWord:upper()
    elseif word:sub(1, 1):upper() .. word:sub(2) == word then
      toggleWord = toggleWord:sub(1, 1):upper() .. toggleWord:sub(2)
    end
    return toggleWord
  end

  local function toggle_bool_value(word)
    local toggleWord = word
    for key, value in pairs(values) do
      if string.lower(key) == word:lower() then
        toggleWord = value
        toggleWord = format_value(word, toggleWord)
        break
      elseif string.lower(value) == word:lower() then
        toggleWord = key
        toggleWord = format_value(word, toggleWord)
        break
      end
    end
    return toggleWord
  end

  local current_line = vim.api.nvim_get_current_line()
  local line_words = {}
  for word in current_line:gmatch("%S+") do
    table.insert(line_words, word)
  end

  for i, word in ipairs(line_words) do
    line_words[i] = toggle_bool_value(word)
  end

  local new_line = table.concat(line_words, " ")
  vim.api.nvim_set_current_line(new_line)
end

-- put this keymap on your keymaps.lua
vim.keymap.set('n', '<leader>t', '<cmd>lua require("core.utils").toggle_boolean_value_on_line()<cr>',
{ desc = "toggle boolean on line"})
3

– the code bellow handles some exceptions, booleans followed by comma, preserves indentation etc.

M.toggle_boolean_value_on_line = function()
-- https://github.com/sagarrakshe/toggle-bool/blob/master/plugin/toggle_bool.py
  local values = {
    ["true"] = "false",
    ["false"] = "true",
    ["on"] = "off",
    ["off"] = "on",
    ["yes"] = "no",
    ["no"] = "yes",
    ["1"] = "0",
    ["0"] = "1",
    ["enable"] = "disable",
    ["disable"] = "enable",
    ["enabled"] = "disabled",
    ["disabled"] = "enabled",
    ["before"] = "after",
    ["after"] = "before",
    ["first"] = "last",
    ["last"] = "first",
    ["up"] = "down",
    ["down"] = "up",
  }

  local function toggle_bool_value(word)
    local toggleWord = values[word]
    if toggleWord == nil then
      return word
    end
    return toggleWord
  end

  local current_line = vim.api.nvim_get_current_line()
  local indent = current_line:match("^%s*") -- Get the leading whitespace
  local line_words = {}
  local bool_count = 0

  for word in current_line:gmatch("%S+") do
    if values[word] ~= nil then
      bool_count = bool_count + 1
    end
    table.insert(line_words, word)
  end

  local cursor_word = vim.fn.expand("<cword>")

  if bool_count == 1 then
    for i, word in ipairs(line_words) do
      if values[word] ~= nil then
        line_words[i] = toggle_bool_value(word)
      end
    end
  else
    for i, word in ipairs(line_words) do
      if word == cursor_word then
        line_words[i] = toggle_bool_value(word)
        break
      end
    end
  end

  local new_line = indent .. table.concat(line_words, " ")
  vim.api.nvim_set_current_line(new_line)
end
4

I’m not sure if this solves all of your use cases, but it’s worth a look