Re: Compiler Construction Tools? (ANTLR)
27 Jul 1998 23:15:56 -0400

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Related articles
Compilier Construction Tools? (1998-07-26)
Re: Compiler Construction Tools? (ANTLR) (1998-07-27)
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Newsgroups: comp.compilers
Date: 27 Jul 1998 23:15:56 -0400
Organization: Deja News - The Leader in Internet Discussion
References: 98-07-183
Keywords: tools, PCCTS

In article 98-07-183, wrote:

> tried, true, supported, and apparently fairly popular. Unfortunately,
> our parser guy thinks the C support of the new java based ANTLR needs
> some more testing before we should try it.

One advantage of ANTLR is that the generated source is human readable. I
haven't used the C++ code generator, only the Java one, so I can't comment on
its stability. You can find out more about that on the antlr-interest mailing
list (send "subscribe" to Also see

I can say ANTLR is suited exactly to your needs of AST generation,
manipulation and code emitting. I used it to write a six pass translator
from a 4GL (Advanced Revelation) to Visual Basic.

Assuming that SQL embedded in your COBOL is easily recognized by some
beginning and end marker, it would be easy to switch to an SQL parser after
seeing the beginning mark and back to the COBOL after the end mark. They
would be written as separate parsers but the COBOL one would call the SQL
one. There is no global state shared by parsers, so you can have as many
instances of as many different types as you want.


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