LispPad

LispPad is a simple, lightweight, integrated development environment for developing and running Scheme code. The language supported by LispPad is based on the R7RS standard of the Scheme programming language. LispPad provides the following components: • A fully integrated Scheme interpreter • A console with a read-eval-print loop to interact with the interpreter • A text editor for writing Scheme code, supporting syntax highlighting, smart indentation, parenthesis matching, page guides, etc. The Scheme dialect supported by LispPad provides the following features: • R7RS-compliant libraries • Hygienic macros based on syntax-rules • First-class environments • call/cc, dynamic-wind and exceptions • Dynamically-scoped parameters • Multiple return values • Delayed execution via promises and streams • Support for the full numerical tower consisting of arbitrary size integers, rationals, real numbers, and inexact complex numbers. • Unicode strings and characters • Vectors and bytevectors • Text and binary ports • R7RS-compliant records • R6RS-compliant hashtables • R6RS-compliant enumerations • All R7RS libraries LispPad focuses on simplicity and ease of use. A number of standard Scheme libraries are built into LispPad to facilitate porting existing Scheme code.