@opentelemetry/core/dist/internal/validators.mjs

OpenTelemetry Core provides constants and utilities shared by all OpenTelemetry SDK packages.

//#region src/internal/validators.ts
const VALID_KEY_CHAR_RANGE = "[_0-9a-z-*/]";
const VALID_KEY_REGEX = new RegExp(`^(?:${`[a-z]${VALID_KEY_CHAR_RANGE}{0,255}`}|${`[a-z0-9]${VALID_KEY_CHAR_RANGE}{0,240}@[a-z]${VALID_KEY_CHAR_RANGE}{0,13}`})$`);
const VALID_VALUE_BASE_REGEX = /^[ -~]{0,255}[!-~]$/;
const INVALID_VALUE_COMMA_EQUAL_REGEX = /,|=/;
/**
* Key is opaque string up to 256 characters printable. It MUST begin with a
* lowercase letter, and can only contain lowercase letters a-z, digits 0-9,
* underscores _, dashes -, asterisks *, and forward slashes /.
* For multi-tenant vendor scenarios, an at sign (@) can be used to prefix the
* vendor name. Vendors SHOULD set the tenant ID at the beginning of the key.
* see https://www.w3.org/TR/trace-context/#key
*/
function validateKey(key) {
	return VALID_KEY_REGEX.test(key);
}
/**
* Value is opaque string up to 256 characters printable ASCII RFC0020
* characters (i.e., the range 0x20 to 0x7E) except comma , and =.
*/
function validateValue(value) {
	return VALID_VALUE_BASE_REGEX.test(value) && !INVALID_VALUE_COMMA_EQUAL_REGEX.test(value);
}
//#endregion
export { validateKey, validateValue };

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