I think it is not much clear here what you mean with quoting? of course you cannot write in CLI something like zypper se test>5 and I think everyone understand it.
So escaping means here 
```
zypper se 'test>5'
```
or
```
zypper se '"test>5"'
```
So if it is first case, you should write, that arguments can contain characters that require escaping in shell, because CLI is also used in automated way and there is usually different mechanism how to pass args properly separated.