Add String.invert()/reverse()

[me2beats]

Describe the project you are working on

Plugins

Describe the problem or limitation you are having in your project

I need to invert a string but I can't to do this simply and efficient.

Describe the feature / enhancement and how it helps to overcome the problem or limitation

Adding String.invert()/String.reverse() would solve the problem

Describe how your proposal will work, with code, pseudo-code, mock-ups, and/or diagrams

The method would return new inverted string
"hello".invert() would give "olleh"

If this enhancement will not be used often, can it be worked around with a few lines of script?

There are some workrounds, for example

static func invert_string(s:String)->String:
    var chars_pool = PoolStringArray()
    var length = s.length()
    chars_pool.resize(length)
    for i in length:
        chars_pool[i] = s[i]
    chars_pool.invert()
    return chars_pool.join("")

This doesn't look efficient tho

Is there a reason why this should be core and not an add-on in the asset library?

Inverting strings is quite frequent task when working with text. For example in Python you can use [::-1] to do this.

[me2beats]

Updated the workaround example. It still requires using loop in gdscript.
First of all I tried split() but it doesn't work with empty delimiter.

[Calinou]

First of all I tried split() but it doesn't work with empty delimiter.

See godotengine/godot#21699 which was rejected.

Edit: This behavior works in 4.0 and later though.

[AThousandShips]

I also want to suggest this trivial workaround in 4.x:

func reverse(arg: String) -> String:
	var arr := arg.to_utf32_buffer().to_int32_array()
	arr.reverse()
	return arr.to_byte_array().get_string_from_utf32()