range

Construct a range, starting at 0 (inclusive), ending at end (exclusive), with a step size of 1.

Examples:

• list(range(0)) returns [].

• list(range(1)) returns [0].

• list(range(2)) returns [0, 1].

• list(range(10)) returns [0, 1, 2, 3, 4, 5, 6, 7, 8, 9].

Note that range(x) is equivalent to range(0, x, 1).

Construct a range, starting at start (inclusive), ending at end (exclusive), with a "step size" (i.e. difference between consecutive values) of step.

If start > end, then step must be negative. Conversely, if start < end, the step must be positive. step cannot be 0.

Examples:

• list(range(1, 23, 3)) returns [1, 4, 7, 10, 13, 16, 19, 22].

• list(range(20, 1, -2)) returns [20, 18, 16, 14, 12, 10, 8, 6, 4, 2].

• list(range(-2, -8, -1)) returns [-2, -3, -4, -5, -6, -7].

• list(range(3, 3, 7)) returns []. Indeed, for all x, and for all y != 0, range(x, x, y) returns [].

Note that range(0, x, 1) is equivalent to range(x).

Generate a textual representation of this iterable.

An optional separator, prefix and postfix can be provided. One can also provide a limit: integer?. If there are more elements in the result than limit, the elements whose indices exceed limit are omitted, and the passed truncated: text is included instead.

Examples:

• [1, 2, 3].join_to_text() returns '1, 2, 3'.

• [1, 2, 3].join_to_text('_') returns '1_2_3'.

• [1, 2, 3].join_to_text('*', '(', ')') returns '(1*2*3)'.

• list<T>().join_to_text('!', '(', ')') returns '()' (where T is a valid type).

• range(10).join_to_text('', '', '', 5) returns '01234...'.

• range(10).join_to_text('', '', '', 5, 'more') returns '01234more'.

Where the function even is defined:

function even(x: integer): text {
   return if (x % 2 == 0) 'EVEN' else 'ODD';
}

Then:

• range(10).join_to_text('->', '{', '}', 5, '...', even(*)) returns {EVEN->ODD->EVEN->ODD->EVEN->...}.