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select

select keyword

Syntax

select variable
case value1 then
instructions 1
case value2 then
instructions 2
...
case valuen then
instructions n
case {valueC1 valueC2 valueCN}
intructions C
[else
instructions]
end

Arguments

variable

variable which value to be analyzed.

value1, ..., valuen

values of variable for which there are appropriate instruction blocks instructions 1, ..., instructions n.

valueC1, ..., valueCN

like value1, ..., valuen but an OR is applied on each variable == valueCx. It is useful to group cases with same instruction.

instructions

block of valid instructions.

Examples

function select_example(n)
    select n
    case 0 then
        disp(0)
    case 1 then
        disp(1)
    case {2 3}
        disp({2 3})
    else
        disp("default")
    end
endfunction

select_example(0); // 0
select_example(1); // 1
select_example(2); // {2 3}
select_example(3); // {2 3}
select_example(4); // "default"

See also

  • if — keyword for conditional execution
  • while — Opens a block of instructions iterated on a heading condition
  • for — keyword entering a non-conditional loop

History

VersionDescription
6.0.0
  • select is now protected: Assignments like select=1 are no longer possible.
  • The number of characters used to define the body of any conditional instruction (if, while, for, or select/case) is no more limited to 16k.
2024.0
  • Add grouped case with cell representation case {2 3} to match either 2 or 3
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Last updated:
Tue Oct 24 14:30:01 CEST 2023