Format API
UUID formatting functions.
Functions
| Function | Signature | Description |
|---|---|---|
encode | (self: UUID, buffer: []u8) []u8 | Canonical lowercase |
encodeUppercase | (self: UUID, buffer: []u8) []u8 | Canonical uppercase |
encodeCompact | (self: UUID, buffer: []u8) []u8 | No dashes |
encodeBraced | (self: UUID, buffer: []u8) []u8 | Wrapped in braces |
encodeUrn | (self: UUID, buffer: []u8) []u8 | URN prefix |
format | (self: UUID, writer: *Io.Writer) Io.Writer.Error!void | Write to writer |
toString | (self: UUID, allocator: Allocator) Allocator.Error![]u8 | Allocated string |
Buffer Sizes
| Format | Buffer Size |
|---|---|
| Canonical | 36 bytes |
| Uppercase | 36 bytes |
| Compact | 32 bytes |
| Braced | 38 bytes |
| URN | 45 bytes |
Validation
Use uuid.isValid(input) to check if a string is a valid UUID format without parsing:
zig
if (uuid.isValid("550e8400-e29b-41d4-a716-446655440000")) {
// Valid format
}Supports all formats: canonical, compact, braced, and URN.