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JAVA LISP reader

Posted on 2004-09-25
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Last Modified: 2008-03-10
Hi,

I was wondering if there is any source code out there for a LISP reader/scanner that just reads a LISP command but doesn't evaluate it or anything; I just want it to store in an array or something.  This is not for homework or a project...just preparing for an exam and I would like to know how the program would work.  Thanks in advance.
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Question by:djchiena
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SergeiKo earned 250 total points
ID: 12151025
Hello, djchiena.

I do not know exectly what is the purpose of LISP reader you want.

But if you are looking for source code of some script language interpreter written in Java, how it is designed and so on, I would recommend you
1. search in google
2. look at source code at http://www.jython.org/ - it allows to run Python over Java (may be useful if you want to embedde some script language into your program, in this case it is Python)
3. read some materials on building translators.

The last thin I haven't tried, but have link is http://www.cobase.cs.ucla.edu/pub/javacc/


Regards.
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by:djchiena
ID: 12151113
I dont want an interpreter or anything...i have a review question that asks for this:

Write a program that will read-in lisp expressions generated by the
following  grammar  and store them in
a character array. Make sure you take care of the following details:

1) Skip all the characters until end of line (comments) when a
   ; (semi coloan) is encounterd.
2) If a end of line character is encountered issue a different
   prompt if the paranthesis are not balanced.
3) Make sure you remember the length of the input.

4) Add a special character to end of the input in the character array.

I just want to see a program that closely resembles this...i dont need to it to be exact.
 
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