naive question about Fortran Hollerith classification

Nathan Inada <nat@druggist.gg.caltech.edu>
Mon, 26 Sep 1994 21:45:55 GMT

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naive question about Fortran Hollerith classification nat@druggist.gg.caltech.edu (Nathan Inada) (1994-09-26)
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Newsgroups: comp.compilers
From: Nathan Inada <nat@druggist.gg.caltech.edu>
Keywords: parse, Fortran, question
Organization: Compilers Central
Date: Mon, 26 Sep 1994 21:45:55 GMT

Fortran Hollerith strings are often cited as an example of a language which
is neither regular nor context-free.


Is there a formal classification of this type of language?


I have seen mention of "indexed languages" as a type of "context-sensitive"
language. does hollerith fall into this catagory? If so (or if not, even)
can anybody suggest a resource which covers "indexed languages" (or whatever
Hollerith is)


Thank you much
-nathan
--

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