Listroid - Scheme

Listroid we have developed aiming the execution environment of the Scheme (R5RS) in which you can enter the comfortably expression even with one hand.

The concept is "Even if caught in fishing leather,! One hand in the Scheme programming vacant".

Operation in the way has the following characteristics.

- Because of the method to insert the expression in the order in parentheses, you do not need to be aware of the closing parenthesis.

- Since frequently used keywords can be entered in the tap or flick once, you do not need to enter the same word one by one many times.

- Since the identifier or constant can be entered in a dedicated keyboard, it is possible to input characters efficiently.

Currently, out of the R5RS, following specifications will remain as the non-implementation or restricted.

But is large, please wait for a while now because it is scheduled to be successively implemented.

■ identifier

Case-sensitive.

■ notes

Not available

■ macro

let-syntax, letrec-syntax, syntax-rules, define-syntax

■ numeric constants syntax

Exponent markers s, f, d, l

■ Math

truncate, round, rationalize, exp, log, sin, cos, tan, asin, acos, atan, sqrt, expt, make-rectangular, make-polar, magnitude, angle

■ control function

dynamic-wind

■ system interface

transcript-on, transcript-off