How has Lisp influenced languages?
As one of the earliest programming languages, Lisp pioneered many ideas in computer science, including tree data structures, automatic storage management, dynamic typing, conditionals, higher-order functions, recursion, the self-hosting compiler, and the read–eval–print loop.
Why are Lisp macros useful?
The macros are used, because they allow to give the Lisp developer a familiar surface syntax. Plus, and that is a big PLUS, macros are making it possible to use load- and compile-time side-effects. If a Lisp compiler sees (ensure-class ‘foo) the compiler itself has no special knowledge about that function call.
Why is Lisp not popular?
The Lisp syntax is not as naturally intuitive to most people as other programming languages. Is familiar for most people. Because, in a sense, there is no programming language called Lisp. Lisp is a family of languages, and by design it’s very easy to take one Lisp and make another one out of it.
What is a lisp speech?
A lisp is a speech impediment that specifically relates to making the sounds associated with the letters S and Z. Lisps usually develop during childhood and often go away on their own. But some persist and require treatment. Another name for lisping is sigmatism.
When was lisp programming language created?
1960
LISP, in full list processing, a computer programming language developed about 1960 by John McCarthy at the Massachusetts Institute of Technology (MIT). LISP was founded on the mathematical theory of recursive functions (in which a function appears in its own definition).
What are macros in programming?
Macros are used to make a sequence of computing instructions available to the programmer as a single program statement, making the programming task less tedious and less error-prone. (Thus, they are called “macros” because a “big” block of code can be expanded from a “small” sequence of characters.)
What is a Lisp?
What is a Lisp file?
Source code file written in Lisp, a programming language that has several different dialects including Common Lisp and Scheme; contains plain text program code that is run with a Lisp interpreter; may be an entire program or a part of a larger Lisp application.
What is a lisp investment?
A LISP is an institution that packages multiple Collective Investment Schemes (Unit Trusts) together. This gives an Investor a single entry into a selection of funds.
How do macros work in Lisp?
The basic mechanism of Lisp macros is simple, but has subtle complexities, so learning your way around it takes a bit of practice. A macro is an ordinary piece of Lisp code that operates on another piece of putative Lisp code, translating it into (a version closer to) executable Lisp.
What is defmacro in Lisp?
The mistake is to suppose that once a macro is called, the Lisp system enters a “macro world,” so naturally everything in that world must be defined using defmacro. This is the wrong picture. The right picture is that defmacro enables a step into the ordinary Lisp world, but in which the principal object of manipulation is Lisp code.
Why is the current Lisp syntax so popular?
The current Lisp syntax is popular among Lisp programmers for two reasons: 1) the data is code is data idea makes it easy to write all kinds of code transformations based on the internalized data. There is also a relatively direct way from reading code, over manipulating code to printing code.
What is the difference between Lisp and Maclisp?
MACLISP – developed for MIT’s Project MAC, MACLISP is a direct descendant of LISP 1.5. It ran on the PDP-10 and Multics systems. MACLISP would later come to be called Maclisp, and is often referred to as MacLisp.