Pattern

patterns available for constructs requiring a selection by case.

Syntax

A pattern can be one of the following:

a path identifier for an enumerator name or variant case name
```
path 
```
a path for a variant where carried value is ignored
```
path _
```
a path for a variant case which does not carry any value
```
path {}
```
an integer value or an integer value with its integer representation (binary, decimal, int32 ...)
```
-? INTEGER  or  -? TYPED_INTEGER
```
a character
```
CHAR
```
a Boolean
```
true  or  false 
```
the default matching any case (two equivalent notations)
```
_  or default
```