Everything about object oriented from the book was added by editors because OO was the fad at the time. Most of the patterns apply to other styles of code. The authors were not confined to studying OO programs
I don’t think we are writing about the same book: ”Design Patterns:
Elements of Reusable
Object-Oriented
Software”.
That’s the one I write about, it has foreword from Grady Booch and was tied to OOPSLA meeting with C++ and Smalltalk examples. To add OOP stuff to it sounds like a different book because that book is about OOP by definition.
Pretty much and so you need to be careful about what you state about any book based on title. Though most of the time the title doesn't mislead this baddly.
of course at the time they really thought nobody would question if oo was the best way to program so it didn't seem usefully misleading. Patterns apply to non oo programning as well