LispPad is a simple, lightweight, integrated development environment for developing and running Scheme code on macOS and iOS. 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, text completion, 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. LispPad is able to sync code with LispPad Go on iOS via iCloud.
Excellent Scheme Environment for Mac
Loads fast, has a very complete implementation and is well documented. What more could you ask for? :-)
United StatesIdeal Scheme lisp for Macs and iPads
R7RS version of Scheme. It just works. No bloat. New to Lisp in general?, the product is an ideal companion to The Little Schemer and The Seasoned Schemer books by Daniel Friedman and Matthias Felleisen and to the classic SICP (Structure and Interpretation of Computer Programs) by Harold Abelson and Gerald Sussman.
United StatesA Beautiful Scheme Environment
Exceptinally well thoughtout and implemented environment for programming in R7RS scheme with a plethora of extra libraries. HIGHLY RECOMMENDED!
United StatesA Nice Initial Offering. My thanks to Mr. Zenger!
It has a few rough edges, but is very useable from my initial playing with it. It opens to a REPL titled, “Untitled”. If you want to code a file, it opens the editor titled, “Untitled 2”. This may be a little confusing for some. If you write code into the editor, and then click run on the editor, it will output in the REPL. It might make more sense to title the repl after the current file one is editing to make the connection more obvious. Also, the help file just opens to a page of some screen shots. When preferences are changed for the editor, they don’t show up on the current editor, but rather show up with the next new editor opened. It might be more mac-like to have the preferences affectt the open editor. These are in NO way complaints. The fact Mr. Zenger offered this for free should absolutely not be a case for looking a “gift horse in the mouth”. Too many write crappy reviews if free software doesn’t do what they think it should. It’s free folks. A gift. If there is something not working, or you want a feature, contact the author about it. Don’t leave a crappy review. That helps no one, and wreaks of an entitled attitude. If they are charging money for it, that’s a whole differen’t thing! If you want a nice, basic app to play with Scheme, or write small programs, this is a nice alternative to the bloat of a more developed ide and/or system.
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• Performance improvements
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