Rule format

Condition expressions

Operators

Operator	Name	Syntax	Associativity	Example	Result
(, )	Grouping	(x)	None	2 * (3 + 4)	14
and	Logical and	x and y	L🡒R	true and false	false
or	Logical or	x or y	L🡒R	true or false	true
is	Equal	x is 5	L🡒R	5 is 6	false
not	Unequal	x not 5	L🡒R	5 not 6	true
in	Existential	x in y	L🡒R	cat in [cat,dog]	true
!in	Existential	x !in y	L🡒R	cat !in [cat,dog]	false
exists	Existential	x exists	L🡒R	user active program exists	**
empty	Existential	x empty	L🡒R	user active program empty	**
includes	List test	x includes 'cat'	L🡒R	user label includes [star]	**
excludes	List test	x excludes 'cat'	L🡒R	user label includes [star]	**
==	Equal	x == y	L🡒R	2 == 4	false
!=	Unequal	x != y	L🡒R	2 != 3	true
<	Smaller	x < y	L🡒R	2 < 3	true
>	Larger	x > y	L🡒R	2 > 3	false
<=	Smallereq	x <= y	L🡒R	4 <= 3	false
>=	Largereq	x >= y	L🡒R	2 + 4 >= 6	true

Objects

• user: session user
  • group: active groups
  • label: active labels
  • program: history
  • active program: current
  • active program-group: current
  • membership: external status
  • Values: self, other, admin
• values: based on input
• profile: name, first, last, timzeone, email, role, locale, translate, gender, genderDetail, age
• attribute: attribute path (dispatch only)

Functions

• #now
• #random
• #version
• #platform
  • Technology: android, ios, native (either iOS or Android), web
  • Form factor: web, mobile, tablet
• date(value)

Examples

(3 is 3) and (1 not 1 or 2 is 2)
test in [hey, ok, test]
user is admin
user is self
user is other
user program includes [handles]
user group includes [handles]
user label includes [handles]
user membership includes [strings]
user membership is string
user active program exists
user active program includes [handles]
profile.gender is 'female'
profile.age < 30
#platform is android
#platform is ios
#platform is web
#platform not web
#version > 3.0.100
#version >= 3.0.0
values.field is 'something'
#now < 16:00
#now < 2020-08-01
#random 1 / 2
date(values.date) is future

Usage notes

1. #random allows rules that happen some time; for example #random 1/2 would be true 50% of the time
2. #version enables the ability to hide functionality that won't work on older versions