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[[Official SCI Documentation]]<br />

<div align="center">
Chapter:
[[SCI Programming Language/Introduction|1]] |
[[SCI Programming Language/Primitive Procedures|2]] |
[[SCI Programming Language/Primitive_Procedures#Arithmetic_Primitives|3]] |
[[SCI Programming Language/Primitive_Procedures#Boolean_Primitives|4]] |
[[SCI Programming Language/Primitive_Procedures#Assignment_Primitives |5]] |
[[SCI Programming Language/Data Types and Variables|6]] |
[[SCI Programming Language/Definitions|7]] |
[[SCI Programming Language/Control Flow|8]] |
[[SCI Programming Language/Control Flow#Conditionals|9]] |
[[SCI Programming Language/Control Flow#Iteration|10]] |
[[SCI Programming Language/Procedures|11]] |
[[SCI Programming Language/Files|12]] |
[[SCI Programming Language/Compiling SCI|13]] |
[[SCI Programming Language/Index|Index]]
</div><br />

<div align="center"><span style="font-size: 22pt">Introduction to the SCI Programming Language</span><br />
''Author: [[Jeff Stephenson]]''</div>

 

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:

<blockquote><code>(procedure [parameter parameter...])</code></blockquote>

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:

<blockquote><code>(+ (-y 2) (/ x 3))</code></blockquote>

which would be written in infix notation as:

<blockquote>(y -2) + (x / 3)</blockquote>

All expressions are guaranteed to be evaluated from left to right. Thus,

<blockquote>
<code>(= x 4)</code><br />
<code>(= y (/ (+= x 4) ( / = x 2)))</code>
</blockquote>

will result in y = 2 and x = 4.

Comments in SCI begin with a semicolon and continue to the end of the line.



<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>

 

[[Category:SCI Documentation]]
[[Category:SCI32]]
[[Category:Scripting]]

SCI Programming Language/Introduction - Revision history

Andrew Branscom: 2 revisions imported

Andrew Branscom: 1 revision imported

Andrew Branscom at 21:54, 13 April 2018