A macro system for Scheme by R. Kent Dybvig firstname.lastname@example.org. It is superior to the low-level system described in the Revised^4 Report (R4RS). Pattern variables are ordinary identifiers with essentially the same status as lexical variable names and macro keywords. The syntax is modified to recognise and handle references to pattern variables. Version 2.1 works with Chez Scheme and the Macintosh port runs under MacGambit 2.0
(ftp://iuvax.cs.indiana.edu/pub/scheme/syntax-case.tar.Z). Macintosh (ftp://maya.dei.unipd.it/pub/mac/gambit/).
[“Syntactic Abstraction in Scheme”, Robert Hieb, R. Kent Dybvig and Carl Bruggeman IUCS TR #355, 6/92 (revised 7/3/92)].
[“Writing Hygienic Macros in Scheme with Syntax-Case”, R. Kent Dybvig, IUCS TR #356, 6/92 (revised 7/3/92)].
- Syntax error
noun in computing, an error in a program due to a code that does not conform to order expected by the programming language Examples A syntax error occurs when a user (or programmer) has put words in an order that a program does not understand. Usage Note computing
noun 1. Linguistics. the study of the rules for the formation of grammatical sentences in a language. the study of the patterns of formation of sentences and phrases from words. the rules or patterns so studied: English syntax. a presentation of these: a syntax of English. an instance of these: the syntax of a sentence. […]
noun, Philosophy. 1. a metalanguage used to refer to the grammatical or other formal features of an object language.
- Syntax tree
mathematics, theory, language A tree representing the abstract syntax of some tokens in a language. (1998-11-12)