cyclone/docs/api/srfi/111.md

SRFI 111 - Boxes

The (srfi 111) library ...

See the SRFI document for more information.

##- and-let*

###and-let*

(and-let* (claws) body

claws ::= '() | (cons claw claws)

claw ::= (variable expression) | (expression) |

bound-variable

##- The claws are evaluated in the strict left-to-right order ##- For each claw, the expression part is evaluated first (or bound-variable is looked up) ##- If the result is #f, and-let* immediately returns #f ##- Otherwise, if the claw is of the form (variable expression) the expression's value is bound to a freshly made variable ##- The variable is available for the rest of the claws , and the body ##- As usual, all variables must be unique (like in let*)