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Format (Common Lisp)
Format is a function in Common Lisp that can produce formatted text using a format string similar to the printf format string. It provides more functionality than printf, allowing the user to output numbers in English, apply certain format specifiers only under certain conditions, iterate over data structures, and output in a tabular format. This functionally originates in MIT's Lisp Machine Lisp, where it was based on Multics ioa_. Specification The format function is specified by the syntax : Directives in the control string are interpolated using the format arguments, and the thus constructed character sequence is written to the destination. Destination The destination may either be a stream, a dynamic string, T, or the NIL constant; the latter of which presents a special case in that it creates, formats and returns a new string object, while T refers to the standard output, usually being equivalent to the console. Streams in Common Lisp comprehend, among others, string outpu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Common Lisp
Common Lisp (CL) is a dialect of the Lisp programming language, published in ANSI standard document ''ANSI INCITS 226-1994 (S20018)'' (formerly ''X3.226-1994 (R1999)''). The Common Lisp HyperSpec, a hyperlinked HTML version, has been derived from the ANSI Common Lisp standard. The Common Lisp language was developed as a standardized and improved successor of Maclisp. By the early 1980s several groups were already at work on diverse successors to MacLisp: Lisp Machine Lisp (aka ZetaLisp), Spice Lisp, NIL and S-1 Lisp. Common Lisp sought to unify, standardise, and extend the features of these MacLisp dialects. Common Lisp is not an implementation, but rather a language specification. Several implementations of the Common Lisp standard are available, including free and open-source software and proprietary products. Common Lisp is a general-purpose, multi-paradigm programming language. It supports a combination of procedural, functional, and object-oriented programming paradigms ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Printf Format String
The printf format string is a control parameter used by a class of functions in the input/output libraries of C and many other programming languages. The string is written in a simple template language: characters are usually copied literally into the function's output, but format specifiers, which start with a character, indicate the location and method to translate a piece of data (such as a number) to characters. "printf" is the name of one of the main C output functions, and stands for "''print f''ormatted". printf format strings are complementary to scanf format strings, which provide formatted input (lexing aka. parsing). In both cases these provide simple functionality and fixed format compared to more sophisticated and flexible template engines or lexers/parsers, but are sufficient for many purposes. Many languages other than C copy the printf format string syntax closely or exactly in their own I/O functions. Mismatches between the format specifiers and type of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lisp Machine Lisp
Lisp Machine Lisp is a programming language, a dialect of the language Lisp. A direct descendant of Maclisp, it was initially developed in the mid to late 1970s as the system programming language for the Massachusetts Institute of Technology (MIT) Lisp machines. Lisp Machine Lisp was also the Lisp dialect with the most influence on the design of Common Lisp. Lisp Machine Lisp branched into three dialects. Symbolics named their variant ZetaLisp. Lisp Machines, Inc. and later Texas Instruments (with the TI Explorer) would share a common code base, but their dialect of Lisp Machine Lisp would differ from the version maintained at the MIT AI Lab by Richard Stallman and others. Manual The Lisp Machine Manual describes the Lisp Machine Lisp language in detail. The manual was popularly termed the ''Chine Nual'', because the full title was printed across the front and back covers such that only those letters appeared on the front. This name is sometimes further abbreviated by blending ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Multics
Multics ("Multiplexed Information and Computing Service") is an influential early time-sharing operating system based on the concept of a single-level memory.Dennis M. Ritchie, "The Evolution of the Unix Time-sharing System", Communications of the ACM, Vol. 17, 1984, pp. 365-375. Nathan Gregory writes that Multics "has influenced all modern operating systems since, from microcomputers to mainframes." Initial planning and development for Multics started in 1964, in Cambridge, Massachusetts. Originally it was a cooperative project led by MIT (Project MAC with Fernando Corbató) along with General Electric and Bell Labs. It was developed on the GE 645 computer, which was specially designed for it; the first one was delivered to MIT in January 1967. GE offered their earlier 635 systems with an early timesharing system known as "Mark I" and intended to offer the 645 with Multics as a larger successor. Bell withdrew from the project in 1969 as it became clear it would not deliver a wor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Practical Common Lisp
''Practical Common Lisp'' is an introductory book on the programming language Common Lisp by Peter Seibel. It features a fairly complete introduction to the language interspersed with practical example chapters, which show developing various pieces of software such as a unit testing framework, a library for parsing ID3 tags, a spam filter, and a SHOUTcast server. At the Jolt Product Excellence and Productivity Awards in 2006, it won a Productivity Award in the technical book category. The full text is available online. In a 2006 Google TechTalk, Seibel presented the book's main points in the context of linguistic relativity (the Sapir–Whorf hypothesis). See also *''Common Lisp the Language ''Common Lisp the Language'' is a reference book by Guy L. Steele about a set of technical standards and programming languages named Common Lisp. History Before standardizing The first edition (Digital Press, 1984; ; 465 pages) was written by Guy ...'' References External linksPractica ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Common Lisp HyperSpec
The Common Lisp HyperSpec is a technical standard document written in the hypertext format ''Hypertext Markup Language'' (HTML). It is not the American National Standards Institute (ANSI) Common Lisp standard, but is based on it, with permission from ANSI and the International Committee for Information Technology Standards (INCITS, X3). Originally developed by Kent Pitman at Harlequin, it is now copyrighted by LispWorks Ltd. It is approximately 15 megabytes (MB) of data in 2,300 files which contain approximately 105,000 hyperlinks. The HyperSpec is used by many Common Lisp development environments (examples: LispWorks, the Superior Lisp Interaction Mode for Emacs (SLIME) for looking up reference information on the constructs of ANSI Common Lisp. The HyperSpec is also available for download. Before the ANSI Common Lisp standard, the book ''Common Lisp the Language'' had been used as a Common Lisp standard reference. Allegro Common Lisp Allegro Common Lisp is a programming langua ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |