Inserting and rearranging text by inspecting existing text

[rok123]

I would like to convert the following paragraph:

1. regular text & character part1 bold or underlined text & character partA regular text & character part2 bold or underlined text & character partB

Into following:




MYTEXT1 1. MYTEXT2 regular text & character part1 regular text & character part2 MYTEXT3 bold or underlined text & character partA bold or underlined text & character partBMYTEXT4 bold or underlined text & character partA bold or underlined text & character partBnumber of regular or bold text part can be one or more.

Would really appreciate the help