is there any way to toogle case?

[ousia]

Is there any way to toggle case in selection (upper/lower)?

I would like also to assign a single keystroke to that.

Many thanks for your help.

[rgieseke]

You mean a single shortcut to toggle the current state?

Otherwise there is this:

Convert the selected text to upper or lower case via Ctrl+Alt+U or Ctrl+Alt+Shift+U, respectively, on Windows, Linux, and BSD; ^U or ^⇧U, respectively, on macOS; and M-^U or M-^L in the terminal version.

[ousia]

I need in a single shortcut.

I think this is the conditional, but I cannot get it working:

keys['ctrl+alt+u'] = function()
  if Upper_Case then
    buffer.lower_case()
    Upper_Case = false
  else
    buffer.lower_case()
    Upper_Case = true
  end
end

I get only uppercase (even with buffer.lower_case()).

[rgieseke]

I think you need to have your state variable definition outside of your function:

local upper_cased
keys['ctrl+alt-u'] = function()
  if upper_cased then
    buffer.lower_case()
    upper_cased = false
  else
    buffer.upper_case()
    upper_cased = true
  end
end

[ousia]

You’re right, but I cannot mark your reply as an answer ☹️.

Sorry, the people who designed this haven’t considered that a reply could contain the answer.

[rgieseke]

No worries, i find the interface with the highlighted reply confusing anyways ...

[ousia]

@rgieseke, this works fine:

keys['ctrl+alt+u'] = function()
  if Upper_Case then
    buffer.lower_case()
    Upper_Case = false
  else
    buffer.upper_case()
    Upper_Case = true
  end
end

I realized I was modifying a backup init.lua (so my approach couldn’t work at all 😅).

It seems that for Lua if x is nil, x is both not true and not false.

if UpperCase then print("yes") else print("no") end

if UpperCase == true then print("yes") else print("no") end

if UpperCase == false then print("yes") else print("no") end

if not UpperCase then print("yes") else print("no") end

The first three conditionals print no, the fourth one prints yes.

This did the trick here.

[rgieseke]

Excellent! Btw. you can also use ui.statusbar_text = 'Upper: '..UpperCase for debugging/developing ...

[rgieseke]

That would have to be ui.statusbar_text = 'Upper: '..tostring(UpperCase)

[ousia]

Good to know that, @rgieseke.