DrScheme - Getting Started Version 372

Dr. Scheme (version 372) documentation TCS

Getting Started with Dr. Scheme

1. Download links for Dr. Scheme Freewarea) http://www.plt-scheme.org/ b) http://download.plt-scheme.org/drscheme/plt-372-bin-i386-win32-exe.html Click on the link “Main download (USA, Massachusetts, Northeastern University)”

2. Install DrScheme on your system by clicking run the exe file named plt-372-bin-i386-win32.exe

The PLT Scheme application will be available in the Start Menu of your system.

3. To open the DrScheme editor, click on start> Programs > PLT Scheme > Dr. Scheme

4. Editor settings

For Pre-ILP AEC only. Page 1

http://download.plt-scheme.org/bundles/4.1.3/plt/plt-4.1.3-bin-i386-win32.exe

http://download.plt-scheme.org/drscheme/plt-372-bin-i386-win32-exe.html

http://www.plt-scheme.org/


Step 1: Click on “Programming language” button at bottom left corner of the editor (encircled red in pic below).

Step 2 : Click on “Choose Program” alternative (shown encircled)



Step 3 : On the “Choose Language “ pop-up , click on “PLT” and then on “Textual (MzScheme, includes R5RS)” option and click “ok” button.

Step 4 : The editor language gets set to “Textual (MzScheme, includes R5RS)” mode.(Use this language only & none other). The editor is now ready for use.



5. Coding in the Scheme editor Code program definitions on the upper window known as “Definitions window”.

6. Executing a program Step 1 : Test/execute by calling the program with data inputs from the lower window known as “interaction window”



Step 2 : Press “enter” to get the result of execution

Alt Step : Alternatively, place the code for program call in the “definitions window” below the program code and click on “Run” button to get the results displayed in the “interactions window”.



7. Help files The IDE , provides an integrated feature for help on syntaxes and libraries through hyper-linked system named “Help-desk”. The “Help-desk” can be accessed from the “Help” menu and can be used for keyword searches.

Step 1 : Click on “Help” menu and then on “Help-desk” menu option

Step 2 : Type in your search string and press enter.



Step 3 : The search results are displayed as hyper-link from which one of the links can be chosen (double-click) to see the detailed instructions.



8. Save file.After coding the programs save the file with a meaningful name. One file may contain multiple programs separated by suitable comments. Comments start with a semi-colon “;” in Dr. Scheme programming language. Code and comments are highlighted with different colors in the editor.

In Case you downloaded the exe file named plt-372-bin-i386-win32.exe in pen drive, first save it in your desktop and follow the instructions given below for installing Dr. Scheme:















Choose Textual language from PLT drop down and start programming with Dr. Scheme.


Documents

DrScheme - Getting Started Version 372