std.bytes

Slicing and searching over uint8[] — what a wire protocol does between reads.

The edges mirror string.substring exactly: a negative start or count panics, a start past the end panics, and a count past the end clamps to it. indexOf answers -1 when nothing is found — ready for slice, as string.indexOf is for substring.

slice function

pub fn slice(bytes: uint8[], start: int, count: int): uint8[]

count bytes from start, clamped at the end like string.substring.

stdlib/std/bytes.lyr:16

indexOf function

pub fn indexOf(bytes: uint8[], value: uint8): int

The first position of value, or -1 — ready for slice.

stdlib/std/bytes.lyr:40

indexOfFrom function

pub fn indexOfFrom(bytes: uint8[], value: uint8, start: int): int

Searches from a position. -1 when nothing is found, as in indexOf; a negative start searches from the front, one past the end finds nothing.

stdlib/std/bytes.lyr:46