core

A growable, copy-on-write sequence with value semantics.

Asynchronous primitives.

Into/From conversions

Platform capabilitieis for the VM, C backend and WASM.

A fixed size array

Syscall-y things

Iterator protocols. Maybe some monads? Unclear.

Low level cross target memory operations.

Protocols for operators like +, -, *, /, etc.

?

Some protocols for ownership. You probably shouldn't need to use them.

Generic ranges like 1..5 or 1..<5

that's too far. !

Lets types describe themselves as strings.

String is a UTF-8 byte buffer. Byte-level access lives behind the explicit utf8() view; byte_count is the buffer length in BYTES, not user-perceived characters. Equality is byte equality: canonically equivalent strings in different normal forms (NFC "é" vs NFD "é") compare unequal.

Unique growable UTF-8 construction. Appending is amortized O(total bytes), and finish transfers the allocation into an immutable String without copying.

Deep, grapheme-safe text algorithms shared by String and Substring. Character-shaped methods only mint and consume opaque StringIndex values; byte offsets remain confined to UTF8View and compatibility search.

UTF-8 and Unicode segmentation support for String's Character layer.

GENERATED by genunicode from UCD 17.0.0 - do not edit. Grapheme-cluster-break categories (UAX #29), one flat partition merging GraphemeClusterBreak, ExtendedPictographic, and InCB. The table is a sorted boundary list: entries of four base-128 septets encoding startcodepoint * 32 + category. See src/bin/genunicode/ for the encoding and regeneration story.

The compiler's favs.