f19a43fd5f
- CLI entry point with yargs parsing for speckl-compile <file> --output-dir --bom-format - TypeScript parser with AST types for all SpeckDL primitives - Generator for PROV-O JSON-LD provenance graphs - Generator for CycloneDX v1.6 BOMs - Generator for SPDX 3.0.1 BOMs - E2E test verifying RetryHandler.speck parsing and all output formats All tests pass.
34 lines
984 B
JavaScript
34 lines
984 B
JavaScript
let random = async bytes => crypto.getRandomValues(new Uint8Array(bytes))
|
|
let customAlphabet = (alphabet, defaultSize = 21) => {
|
|
let mask = (2 << (Math.log(alphabet.length - 1) / Math.LN2)) - 1
|
|
let step = -~((1.6 * mask * defaultSize) / alphabet.length)
|
|
return async (size = defaultSize) => {
|
|
let id = ''
|
|
while (true) {
|
|
let bytes = crypto.getRandomValues(new Uint8Array(step))
|
|
let i = step | 0
|
|
while (i--) {
|
|
id += alphabet[bytes[i] & mask] || ''
|
|
if (id.length === size) return id
|
|
}
|
|
}
|
|
}
|
|
}
|
|
let nanoid = async (size = 21) => {
|
|
let id = ''
|
|
let bytes = crypto.getRandomValues(new Uint8Array((size |= 0)))
|
|
while (size--) {
|
|
let byte = bytes[size] & 63
|
|
if (byte < 36) {
|
|
id += byte.toString(36)
|
|
} else if (byte < 62) {
|
|
id += (byte - 26).toString(36).toUpperCase()
|
|
} else if (byte < 63) {
|
|
id += '_'
|
|
} else {
|
|
id += '-'
|
|
}
|
|
}
|
|
return id
|
|
}
|
|
export { nanoid, customAlphabet, random }
|