Re: Is YACC / PCCTS used in commercial compilers?

johnr@ims.com (John Roberts)
10 Dec 1996 12:07:59 -0500

          From comp.compilers
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Is YACC / PCCTS used in commercial compilers? johnr@ims.com (1996-12-07)
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From: johnr@ims.com (John Roberts)
Newsgroups: comp.compilers,comp.compilers.tools.pccts
Date: 10 Dec 1996 12:07:59 -0500
Organization: Integrated Measurement Systems, Inc.
References: 96-12-051
Keywords: yacc, parse

>> I'm wondering if commercial compilers like Microsoft Visual C++,
>> Borland C++, Sun SparcWorks C / C++ use tools like YACC or PCCTS to
>> handle parsing.
>
>I can tell you that most commercial compilers use front ends bought
>from specialist vendors. That suggests the answer to your question is No.


I suspected as much (re: using YACC or PCCTS in commercial compilers).


What I'm trying to understand is:


                1) What are the problems using YACC/PCCTS in commercial compilers?
                        (i.e. why aren't they used?)


                2) What techniques are used in place of YACC/PCCTS for commerical
                        compiler parsing?


Ideas, anyone?




thanks,


John Roberts
johnr@ims.com
--

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