Talk:Generational list of programming languages
Multiple inheritance
Why is C# listed as a derivative of C, but Java is not? The whole premise of this list, i.e. that languages form a simple tree is a bit suspect. 0xBAC 06:56, 1 Aug 2003 (UTC)
An interesting idea, but I agree a tree is suspect—I think you can so a tree of principal influences and pointers to other. But where is Smalltalk? Where is Prolog? RPL? If we have VBScript, why not Javascript. What about Perl, PHP. Isn't SQL a language, other 4GLs. What about shell scripts- TeX- assemblers?
There are languages that, arguably, are created specifically in an attempt to "merge" the outstanding characteristics of two other languages. J is a good example: if one didn't knew that APL was also created by Iverson, it would be hard to say whether J is influenced more by APL than Backus's FP/FL or viceversa. I ended up listing it under both and making a referential note. Sure enough, if this technique were to be missused , the Generational list would end up being a Generational mesh ;-) --Danakil
- Indeed—the concept of multiple inheritance is rampant, here :-). Rexx, for example, has a strong syntactic resemblance to PL/I, with symbolic concepts adapted from BASIC and the PL/I macro processor, and many semantic aspects (few limits and system interfaces in particular) taken from EXEC 2. mfc
Concurrent Turing
Hi, There is no such language as Concurrent Turing. Turing Plus is concurrent, but it has never been called Concurrent Turing.
Jim Cordy (co-author of the Turing, Turing Plus and Object-Oriented Turing languages)