How to use prunes? Do -type d and -type f have a different effect on prunes?

Question

When i use

find . -type f -path ./source/script -prune -o -print; 

I get files in the cropped directory. / source / script.

 ... ./source/script ./source/script/myapp02.4372d2ea3388.js ./source/script/myapp02.js ./source/script/myapp02.1798d7bc34d2.js ... 

But when I use:

 find . -path ./source/script -prune -o -type f -print; 

files in the "trimmed" directory are omitted:

 ./generate.py ./readme.txt ./source/class/myapp02/Application.js ./source/class/myapp02/Application.js:75: ./source/class/myapp02/__init__.js ./source/class/myapp02/Application.js~ ./source/class/myapp02/theme/Font.js ./source/class/myapp02/theme/Theme.js ./source/class/myapp02/theme/Decoration.js ./source/class/myapp02/theme/Color.js ./source/class/myapp02/theme/Appearance.js ./source/class/myapp02/simulation/DemoSimulation.js ./source/class/myapp02/test/DemoTest.js ./source/translation/readme.txt ./source/index.html ./source/index.html~ ./source/resource/myapp02/test.png ./Manifest.json ./config.json 

In another example, I see:

 find . -type d \( -path dir1 -o -path dir2 -o -path dir3 \) -prune -o -print 

The only difference I see with mine is that -type d is in my -type f code.

Is this the only reason that -prune is ignored and the search program searches inside the "cropped" directory?

Answer 1

 find . -type f -path ./source/script -prune -o -print; 

interpreted as

 find . (-type f AND -path ./source/script AND -prune) OR (-print); 

---

 find . -path ./source/script -prune -o -type f -print; 

interpreted as

 find . (-path ./source/script AND -prune) OR (-type f AND -print); 

---

Note that -print and -prune are expressions that evaluate to true .

So if (-path ./source/script AND -prune) true , then (-type f AND -print) not evaluated and -print not called. And `(-path ./source/script AND -prune) correct for all files and subdirectories ./source/script