Query
Control Flow
- Grouping with
(and) - Chaining with
andandor- NO mixing! Be explicit and use grouping.
- Negation with
not- in front of expression for group:
not (...) - inside expression for clause:
name not matches "^King "
- in front of expression for group:
Selectors
Supported by all feeders:
- root level field:
field - sub level field:
field.sub - array/slice/map access:
map.0 - array/slice/map length:
map.#
Please note that some feeders may have other special characters. It is advised to only use alphanumeric characters for keys.
Operators
| Name | Textual | Req. Type | Internal Type | Compared with |
|---|---|---|---|---|
| Equals | == |
int | int64 | == |
| GreaterThan | > |
int | int64 | > |
| GreaterThanOrEqual | >= |
int | int64 | >= |
| LessThan | < |
int | int64 | < |
| LessThanOrEqual | <= |
int | int64 | <= |
| FloatEquals | f== |
float | float64 | == |
| FloatGreaterThan | f> |
float | float64 | > |
| FloatGreaterThanOrEqual | f>= |
float | float64 | >= |
| FloatLessThan | f< |
float | float64 | < |
| FloatLessThanOrEqual | f<= |
float | float64 | <= |
| SameAs | sameas, s== |
string | string | == |
| Contains | contains, co |
string | string | strings.Contains() |
| StartsWith | startswith, sw |
string | string | strings.HasPrefix() |
| EndsWith | endswith, ew |
string | string | strings.HasSuffix() |
| In | in |
string | string | for loop with == |
| Matches | matches, re |
string | string | regexp.Regexp.Matches() |
| Is | is |
bool* | bool | == |
| Exists | exists, ex |
any | n/a | n/a |
*accepts strings: 1, t, T, true, True, TRUE, 0, f, F, false, False, FALSE
Escaping
If you need to use a control character within a value (ie. not for controlling), escape it with \.
It is recommended to wrap a word into parenthesis instead of escaping control characters, when possible.
| Location | Characters to be escaped |
|---|---|
Within parenthesis (") |
", \ |
| Everywhere else | (, ), ", \, \t, \r, \n, (space) |