diff_match_patch | Patch libraries for Plain Text

I am trying to Dockerizing Django with Postgres, Gunicorn, and Nginx via the tutorial on

https://testdriven.io/blog/dockerizing-django-with-postgres-gunicorn-and-nginx/

I am was getting an error while docker is in step 7 i.e,

Step 7/23 : RUN pip wheel --no-cache-dir --no-deps --wheel-dir /usr/src/app/wheels -r requirements.txt

I was able to update the Dockerfile.prod to conquer this error, but i am getting another error in step 21

Step 21/26 : RUN pip install --no-cache /wheels/*

This is my updated Dockerfile.prod

I'd like to use the google diff/match/patch lib in an angular app to show the difference between two texts.

My usage would be something like this:

I'm following the example at https://github.com/google/diff-match-patch and

This error won't go away even after many 'mvn clean install' and reimport pom.xml's

I'm using diff_match_patch method called match_main to find a best match of for example invoice number in a list of available invoice numbers if the user provides the number in different format (order, separators)

match_main returns an index, for example if the pattern is 20170630/4072/00 and the list of possible invoice numbers is a string 20180923-5032-02 2016-6872-01 20170630-4072-00 20170620-4072-00 20091204-7914-00 (so invoice numbers with space as a separator) it will return 30 (index of the first character from 'correct' number which is 20170630-4072-00 and I know how to extract that number automatically (I know the index of the first character of the number and I know it ends before the next space) but if the user provides invoice number but in different order (4072-00-20170630) it will return 39 and that's in the middle of 'correct' number and in this case I don't know how to extract that number (I know the index of the character somewhere inside the number and that the number begins after last space and ends before the next space)

This concerns firebase-auth plugin for flutter. I have the same code running on two mac computers. I just did a fresh install on the latter, and get a build error on FirebaseAuthPlugin.m : Incompatible block pointer

DESCRIPTION:

I created 3 textboxes. First and second are populated it with text. The third is the comparison between the first 2 textboxes. I used tag_configure to display the differences.

QUESTION:

I want that when I click on the sentence or any part of the text in textbox 1 or 2 or 3, it should scroll the other textboxes to that text.

How shall I extract the text on a click?

OUTPUT:

When I click 26 on text box 1, it should scroll tb 2 & 3 to that specific text (i.e.: 26).

CODE:

Im attempting to setup a basic codemirror merge view as per https://codemirror.net/demo/merge.html

I have my html and scripts as per the below

I am using a diff api tool to create a nice diff to show changed text. I am using the google diff tool to accomplish this. When the diff text is generated it produces a ¶ at the end of each line. I want to remove all instances of this character. How would I go about doing it? Here is a demo of the tool.