By Guy Steele
The defacto commonplace - a must have for all LISP programmers.
during this tremendously accelerated variation of the defacto usual, you will know about the approximately two hundred alterations already made when you consider that unique ebook - and know about grey components more likely to be revised later. Written by way of the Vice- Chairman of X3J13 (the ANSI
committee accountable for the standardization of universal Lisp) and co-developer of the language itself, the hot version includes the complete textual content of the 1st version plus six thoroughly new chapters. They hide: - CLOS, the typical Lisp item procedure, with new beneficial properties to aid functionality overloading and object-oriented programming, plus entire technical requisites * Loops, a strong keep an eye on constitution for a number of variables * stipulations, a generalization of the mistake signaling mechanism * sequence and turbines * Plus different topics no longer a part of the ANSI criteria yet of curiosity to specialist programmers. all through, you will find clean examples, extra clarifications, warnings, and tips - all offered with the author's primary vigour and wit.
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Additional info for Common LISP. The Language. Second Edition
COMMON LISP Notice of correction. In the first edition, the characters “,” and “:” at the left margin above were inadvertently omitted. ) are not used for any purpose in standard Common Lisp syntax. 3). All code in this book is written using lowercase letters. Common Lisp is generally insensitive to the case in which code is written.
Characters are represented as data objects of type character. There are two subtypes of interest, called standard-char and stringchar. X3J13 voted in March 1989 ⟨11⟩ to remove the type string-char. -\ followed by the characA character object can be notated by writing # -\g means the character object for a lowercase g. ter itself. For example, # DATA TYPES 25 This works well enough for printing characters. Non-printing characters have -\ and then the name; for example, names, and can be notated by writing # -\Space (or # -\SPACE or # -\space or # -\sPaCE) means the space character.
The set of all objects is specified by the symbol t. The empty data type, which contains no objects, is denoted by nil. A type called common encompasses all the data objects required by the Common Lisp language. A Common Lisp implementation is free to provide other data types that are not subtypes of common. X3J13 voted in March 1989 ⟨17⟩ to remove the type common (and the predicate commonp) from the language, on the grounds that it has not proved to be useful in practice and that it could be diﬃcult to redefine in the face of 13 14 COMMON LISP other changes to the Common Lisp type system (such as the introduction of CLOS classes).