Simple query language to describe condition for label
- equal rules:
- value equal
key="value"
- value not equal
key!="value"
- value ends with
key$="value"
- value starts with
key^="value"
- value contains
key*="value"
- has key
key
- value equal
- compose rules:
- and
&
- or
|
- hoisting operator precedence
()
- and