Simple text wrap expression

Hello, thanks to everyone chiming in.

So I was able to get kind of close using the expression from this other forum post:

https://creativecow.net/forums/thread/paragraph-text-box-control-reversed/

However, I think further scripting is needed. While I believe it would not be exactly what I'm looking to do it may come close and would likely be enough.

I think I need to figure out how to lean on the above expression but be able to calculate the distance between each of the four points on the path I drew behind the text. Then pipe all four of those distances somehow into that expression.

If possible, this way, I can parent nulls to each path point and hopefully, the text will dynamically drop down to another line. Additionally, I think some how connecting the scale of the text in a text animator property would help too.

This might cut down keyframing a fair bit.

Unfortunately, this is the extent of my expression know-how, if anyone more experienced with expressions has any insight that would be super appreciated.

There's nothing simple about text wrapping. That's why (print) layout tools have a whole slew of tools for dealing with typographically correct typesetting and newspapers aren't designed in simple text editors. You have a wrong assumption about the process. As my colleagues already pointed out, this will require a completely different approach to fake it in AE and it's a whole lot of work, not some "simple text wrap expression". If you can be more specific about what needs to be done I'm sure we can advise more specifically, but don't expect anyone to tell you how to re-create a whole text layout engine in expressions. Anyone in their right mind would only tackle this on an "as needed" basis or else this becomes an endless thing.

Mylenium

The only ways I can think of doing anything remotely similar, as well as what Rick says are;

a) You can animate the Alignment options using the Source Text property. However, the letters will not interpolate in the way you see here, they will just jump from Left Aligned to Right Aligned suddenly. But they will wrap around the edges like they do here. You might need to create multiple boxes.

b) I'm thinking you could achieve this effect using path text? If you put each line of text on its own horizontal path, you could use the Alignment options and the first/ last margin options to animate the lines individually? A bit of a faff but a workaround that might be useful?

After Effects will let you click and drag a box that will act as a container that wraps text. You can set keyframes for text but they will always behold keyframes. Text animators do not have access to the text area box. You could set a keyframe on every frame as you resize and reposition the text box but that would be extremely tedious and difficult to control. 

The only other option would be to create a different text box on different layers and use the text animators to flow text into multiple layers. Basically, every rectangle that needs to be filled with text would have to be a separate text layer and you would have to cut between the layers. It would probably take me the better part of a day to reproduce that Instagram video. 

By far the easiest way to reproduce a video that shows text flowing into different columns and wrapping around images is to use a good screen recording program like ScreenFlow (OSX) and open up an app like In Design or even Word and start moving the text around on the page. Speed up your screen recording and you're basically done.