| ═══════════════════════════════════════════════ |
| AlienCode — Language Reference Manual |
| ═══════════════════════════════════════════════ |
|
|
| AlienCode is a simple calculation language. |
| All operations use function-call syntax. Below is the complete spec. |
|
|
| ────────────── Values ────────────── |
| Integers 42, -5, 0 |
| Floats 3.14, -0.5 |
| Strings "hello", "world" |
| Booleans YES (true) NO (false) |
|
|
| ────────────── Assignment ────────────── |
| SET x AS 5 assign 5 to x |
| SET x, y AS 1, 2 multiple assignment |
|
|
| ────────────── Output ────────────── |
| EMIT(x) display x |
| EMIT(x, y, z) display several values (space-separated) |
|
|
| ────────────── Arithmetic ────────────── |
| SHATTER(a, b) addition a + b |
| WEAVE(a, b) subtraction a − b |
| PARE(a, b) multiplication a × b |
| FRACTURE(a, b) division a ÷ b |
| COIL(a, b) power a ^ b |
| RESIDUE(a, b) modulo a mod b |
| HALVE(a, b) integer div a ÷ b (rounded down) |
|
|
| ────────────── Comparison ────────────── |
| AKIN(a, b) equal a == b |
| APART(a, b) not equal a ≠ b |
| OVER(a, b) greater a > b |
| UNDER(a, b) less a < b |
| ATOP(a, b) greater-or-eq a >= b |
| BENEATH(a, b) less-or-eq a <= b |
|
|
| ────────────── Logic ────────────── |
| BOND(a, b) logical AND |
| RIFT(a, b) logical OR |
| NEGATE(a) logical NOT |
|
|
| ────────────── Sequences ────────────── |
| STRAND(1, 2, 3) create list [1, 2, 3] |
| KNOT(1, 2, 3) create tuple (1, 2, 3) |
| PLUCK(seq, i) element at index i (0-based) |
| CARVE(seq, start, stop) sub-sequence seq[start:stop] |
| ANNEX(seq, val) append val to end of seq |
| EXPEL(seq) remove & return last element |
| IMPRINT(seq, i, val) assign val to seq[i] (0-based) |
|
|
| ────────────── Aggregation ────────────── |
| GAUGE(seq) length of seq |
| NADIR(a, b, …) minimum value |
| APEX(a, b, …) maximum value |
| SOME_OF(seq) true if any element is true |
| EVERY_OF(seq) true if all elements are true |
| ORDER(seq) sorted copy (ascending) |
| GATHER(iter) convert iterator to list |
| FUSE(a, b, …) concatenate values as string |
|
|
| ────────────── Iteration ────────────── |
| EXTENT(n) [0, 1, …, n-1] |
| EXTENT(a, b) [a, a+1, …, b-1] |
| INDEX(seq) yields (index, value), index starts at 0 |
| PAIR(a, b) pairs corresponding elements of a and b |
| STRAIN(func, seq) keeps elements where func(x) is true |
|
|
| ────────────── Control Flow ────────────── |
| UPON condition: if |
| … |
| LEST condition: else-if |
| … |
| DEFAULT: else |
| … |
| SWEEP var IN iterable: for loop |
| … |
| WHILE condition: while loop |
| … |
| CEASE break |
| BYPASS continue |
| |
| ────────────── Functions ────────────── |
| CRAFT name(args): define function |
| … |
| DELIVER value return value |
| |
