Difference between revisions of "The Script Programming Language"

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The Script Programming Language
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[[Official SCI Documentation]]<br />
  
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Author: Jeff Stephenson<br />
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<div align="center"><span style="font-size: 22pt">The Script Programming Language</span><br />
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Date: 4 April 1988  
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''Author: [[Jeff Stephenson]]''<br />
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Date: 4 April 1988</div>
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==<br /> Introduction ==
 
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The Script adventure game language is an object-oriented language with a Lisp-like syntax. It is compiled by the sc compiler into the pseudo-code which is used by the interpreter, sci.
 
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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.
 
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As is Lisp, Script is based on parenthesized expressions which return values. An expression is of the form
 
  
 
<blockquote>
 
<blockquote>
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<div class="CodeBlockHeader">Code:</div>
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*[[The Script Programming Language/Introduction | Introduction]]
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<syntaxhighlight lang="sci">
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*[[The Script Programming Language/Files | Files]]
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      (procedure [parameter parameter ...]).
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*[[The Script Programming Language/Definitions | Definitions]]
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</syntaxhighlight>
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*[[The Script Programming Language/Data Types and Variables | Data Types and Variables]]
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*[[The Script Programming Language/Primitive Procedures | Primitive Procedures]]
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**[[The Script Programming Language/Primitive Procedures#Arithmetic primitives | Arithmetic primitives]]
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**[[The Script Programming Language/Primitive Procedures#Boolean primitives | Boolean primitives]]
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**[[The Script Programming Language/Primitive Procedures#Assignment primitives | Assignment primitives]]
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*[[The Script Programming Language/Control Flow | Control Flow]]
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**[[The Script Programming Language/Control Flow#Conditionals | Conditionals]]
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**[[The Script Programming Language/Control Flow#Iteration | Iteration]]
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*[[The Script Programming Language/Procedures | Procedures]]
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*[[The Script Programming Language/Using SC | Using SC]]
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*[[The Script Programming Language/Index | Index]]
 
</blockquote>
 
</blockquote>
  
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The parameters to a procedure may themselves be expressions to be evaluated, and may be nested until you lose track of the parentheses.
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<div align="center">
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Chapter:
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Unlike Lisp, the procedure itself may NOT be the result of an evaluation. An example of an expression is
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[[The Script Programming Language/Introduction|1]] |
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[[The Script Programming Language/Files|2]] |
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[[The Script Programming Language/Definitions|3]] |
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[[The Script Programming Language/Data Types and Variables|4]] |
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[[The Script Programming Language/Primitive Procedures|5]] |
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[[The Script Programming Language/Control Flow|6]] |
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[[The Script Programming Language/Procedures|7]] |
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[[The Script Programming Language/Using SC|8]] |
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[[The Script Programming Language/Index|Index]]
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</div><br />
  
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<blockquote>
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* [[Media:SCRIPT.pdf|Download The Script Programming Language in PDF Form]]<br />
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<div class="CodeBlockHeader">Code:</div>
 
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<syntaxhighlight lang="sci">
 
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      (+ (- y 2) (/ x 3))
 
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</syntaxhighlight>
 
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</blockquote>
 
  
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which would be written in infix notation as
 
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<blockquote>
 
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<div class="CodeBlockHeader">Code:</div>
 
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<syntaxhighlight lang="sci">
 
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      (y - 2) + (x / 3).
 
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</syntaxhighlight>
 
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</blockquote>
 
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All expressions are guaranteed to be evaluated from left to right. Thus,
 
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<blockquote>
 
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<div class="CodeBlockHeader">Code:</div>
 
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<syntaxhighlight lang="sci">
 
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      (= x 4)
 
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      (= y (/ (+= x 4) (/= x 2)))
 
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</syntaxhighlight>
 
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</blockquote>
 
  
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will result in y = 2 and x = 4.
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&nbsp;
  
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Comments in Script begin with a semi-colon, ';', and continue to the end of the line.
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<span style="float: left"><span class="Inactive">&lt; Previous: </span></span><span style="float: right">[[The Script Programming Language/Introduction|Next: Introduction &gt;]]</span>
  
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&nbsp;
  
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=== <br />Files ===
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[[Category:SCI Documentation]]
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[[Category:Scripting]]

Latest revision as of 20:12, 2 December 2015

Official SCI Documentation

The Script Programming Language

Author: Jeff Stephenson

Date: 4 April 1988

Chapter: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | Index



 

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