Difference between revisions of "SCI Programming Language/Introduction"
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| − | <code>(= x 4) | + | <code>(= x 4)</code><br /> |
| − | (= y (/ (+= x 4) ( / = x 2)))</code> | + | <code>(= y (/ (+= x 4) ( / = x 2)))</code> |
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[[The SCI Programming Language | Table of Contents]] | [[The SCI Programming Language | Table of Contents]] | ||
| − | + | <span style="float: left">[[SCI Programming Language|< Previous: Table of Contents]]</span> | |
| − | + | <span style="float: right">[[SCI Programming Language/Primitive Procedures|Next: Primitive Procedures >]]</span> | |
| − | <span style="float: left">[[ | ||
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[[Category:SCI Documentation]] | [[Category:SCI Documentation]] | ||
| + | [[Category:SCI32]] | ||
[[Category:Scripting]] | [[Category:Scripting]] | ||
Latest revision as of 21:45, 24 May 2016
The SCI language is an object-oriented language with a Lisp-like syntax. It is compiled by the sc compiler into p-machine code which is used by the interpreter, sci.exe. We will begin our discussion of the language with its basic Lisp-like characteristics, then go on to the object-oriented parts of the language. Like Lisp, SCI is based on parenthesized expressions which return values. An expression is of the form:
(procedure [parameter parameter...])
The parameters to a procedure may themselves be expressions to be evaluated, and may be nested until you lose track of the parentheses. Unlike Lisp, a procedure itself may not be the result of an evaluation. An example of an expression is:
(+ (-y 2) (/ x 3))
which would be written in infix notation as:
(y -2) + (x / 3)
All expressions are guaranteed to be evaluated from left to right. Thus,
(= x 4)
(= y (/ (+= x 4) ( / = x 2)))
will result in y = 2 and x = 4.
Comments in SCI begin with a semicolon and continue to the end of the line.
< Previous: Table of Contents Next: Primitive Procedures >
