/**
 * Matches a single dot variable method reference inside an angle bracket identifier.
 *
 * Used to detect primitive method references such as `expiry.toIso8601`.
 *
 * For example `expiry.toIso8601` matches with base expiry and method toIso8601.
 * `requestedSatoshis` does not match because it has no method.
 * `key.schnorr_signature.all_outputs` does not match because it has more than one dot.
 */
export const CASHASSEMBLY_VARIABLE_METHOD_REFERENCE_PATTERN = /^([^.]+)\.([^.]+)$/;

/**
 * Character count of the `$(` evaluation opener, which is two characters long.
 *
 * Adding this length moves the read position to the first character after that sequence so scanning
 * starts on the evaluation contents rather than on the opening parenthesis.
 */
export const CASHASSEMBLY_EVALUATION_START_LENGTH = 2;

/**
 * Character count of the `//` and `/*` comment openers, which are both two characters long.
 *
 * Adding this length moves the read position to the first character after that sequence so the '*'
 * of a block comment opener cannot be reused as the '*' of its closer.
 */
export const CASHASSEMBLY_COMMENT_START_LENGTH = 2;

/**
 * Character count of the block comment closer, which is two characters long.
 *
 * Adding this length moves the read position to the first character after that sequence so the
 * closing slash cannot pair with the next character and open another comment.
 */
export const CASHASSEMBLY_BLOCK_COMMENT_END_LENGTH = 2;

/**
 * `$()` with nothing between the parentheses.
 *
 * Callers use this to detect an evaluation that has no contents to compile.
 */
export const EMPTY_CASHASSEMBLY_EVALUATION = '$()';