Function getStringLiteral

packages/language/src/utils.ts:76–78

(node: AstNode | undefined)

 * Try getting string value from a potential string literal expression
 */
export function getStringLiteral(node: AstNode | undefined): string | undefined {
    return isStringLiteral(node) ? node.value : undefined;
}

const isoDateTimeRegex = /^\d{4}(-\d\d(-\d\d(T\d\d:\d\d(:\d\d)?(\.\d+)?(([+-]\d\d:\d\d)|Z)?)?)?)?$/i;