repeat from to instruction
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repeat from to instruction

Description

The repeat from to instruction is used to execute a set of instructions over a range of integer values stored in a loop variable. The loop variable starts and ends with specified values. At each pass, it is incremented or decremented by one, or any other specified step value. The loop variable can be accessed by instructions within the loop.

[Note]Note
The repeat from to instruction is similar to the frequently used for (int i=0; i<max; i++) statement in Java and C#.

Syntax

Table 8.14. repeat from to syntax

ProductionSyntaxLinks
repeat_from_to_instruction

"repeat" "from" object_type_selector ? variable_id "=" expression "down" ? "to" expression ( "step" step_expression ) ? repeat_tail ?
   script_instruction *
"end" "repeat" ?

remarks:

  • expression must be of type signed_integer32 (or any sub-type)
  • the default value for object_type_selector is ty_positive32
  • step_expression must be of type positive32 (or any sub-type)
  • the default value for step is 1

the section called “repeat from to instruction”
repeat_tail( "counter" ":" variable_id ) ? ( "id" ":" identifier ) ?the section called “repeat tail”

Examples

Example 8.14. repeat from to example 1

// display numbers from 1 to 10

repeat from i = 1 to 10
   console.message ( i.to_string )
end

Example 8.15. repeat from to example 2

// display even numbers between 10 and 4

repeat from i = 10 down to 4 step 2
   console.message ( i.to_string )
end

The result on screen is:

10
8
6
4

Example 8.16. repeat from to example 3

service instruction_examples

   command repeat_from_to_example_2
      script
      
         // create table data provider with 2 rows and 4 columns, and containing some simple test data
         const positive32 row_count = 2
         const positive32 column_count = 4
         const table_data_provider table_data_provider = fa_table_data_provider_for_tests.co_create ( &
         	i_row_count = c_row_count &
         	i_column_count = c_column_count )
         	
         // loop through all rows
         repeat from row_index = 1 to c_row_count

            // loop through all even columns
            repeat from column_index = 2 to c_column_count step 2

               // display cell value
               se_console.co_message ( c_table_data_provider.co_cell_value ( &
                  i_row_index = v_row_index &
                  i_column_index = v_column_index ).to_string )

            end repeat
         end repeat

      end script
   end command
   
end service

The result on screen is:

r1 c2
r1 c4
r2 c2
r2 c4

See also

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repeat for each instruction Home repeat times instruction