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- Path: sparky!uunet!zaphod.mps.ohio-state.edu!caen!spool.mu.edu!agate!agate!usenet
- From: parrt@ecn.purdue.edu (Terence J Parr)
- Newsgroups: comp.archives
- Subject: [comp.compilers] PCCTS: release 1.06
- Followup-To: comp.compilers
- Date: 14 Dec 1992 08:16:55 GMT
- Organization: Compilers Central
- Lines: 134
- Sender: adam@soda
- Approved: adam@soda
- Distribution: world
- Message-ID: <1ghftnINNla7@agate.berkeley.edu>
- References: <92-12-033@comp.compilers>
- Reply-To: parrt@ecn.purdue.edu (Terence J Parr)
- NNTP-Posting-Host: soda.berkeley.edu
- X-Original-Newsgroups: comp.compilers
- X-Original-Date: Tue, 8 Dec 1992 23:54:13 GMT
-
- Archive-name: auto/comp.compilers/PCCTS-release-1-06
-
- The latest release of The Purdue Compiler Construction Tool Set,
- PCCTS 1.06, is now available. This release is a bug fix and feature
- update, but does not constitute a major release; hence, the manual has not
- been updated (a description of the new features is available in TROFF,
- Postscript, and text formats). The original manual, describing PCCTS
- 1.00, was published in ACM SIGPLAN Notices publication (Vol 27, No 2, Feb
- 1992) and is available with the latest release.
-
- For those not familiar with PCCTS, it is similar to a highly
- integrated version of YACC and LEX; where ANTLR (ANother Tool for Language
- Recognition) corresponds to YACC and DLG (DFA-based Lexical analyzer
- Generator) functions like LEX. However, PCCTS has many additional
- features which make it easier to use for a wide range of translation
- problems. PCCTS is also in the public domain, that is, we reserve no
- legal rights to the software.
-
- PCCTS grammars contain specifications for lexical and syntactic
- analysis, semantic predicates, intermediate-form construction and error
- reporting. Rules may employ Extended BNF (EBNF) grammar constructs and
- may define parameters, return values and local variables. Languages
- described in PCCTS are recognized via LL(k) parsers constructed in pure,
- human-readable, C code.
-
- For those users with anonymous FTP access: THE SITE HAS CHANGED TO:
-
- marvin.ecn.purdue.edu (128.46.179.151)
-
- in the directory:
-
- pub/pccts/1.06
-
- For those without ftp access, contact our mail server at
- pccts@ecn.purdue.edu. A missing or undecipherable "Subject:" line will
- cause the system to reply with email explaining how to use the server.
- However, the following sequence of mail commands (on a UNIX system) is
- sufficient to receive all files needed to install PCCTS on your system:
-
- mail -s 'email README' pccts@ecn.purdue.edu
- mail -s 'email UPDATE106.ms' pccts@ecn.purdue.edu
- mail -s 'email install' pccts@ecn.purdue.edu
- mail -s 'email one.c' pccts@ecn.purdue.edu
- mail -s 'email pccts.bag' pccts@ecn.purdue.edu
-
- Note that non-UNIX users will have to get files install.bag.reqd and
- unbag.c in addition. See the README file for details.
-
- The old ftp site still exists, but will not be updated. Only the
- new ftp site (or email) should be used for bug fixes, new releases, etc.
-
- Items of note in the new version:
-
- o Predicated Parsing--PCCTS now has the ability to allow semantics
- (arbitrary C expressions) to influence parsing; hence, context-
- sensitive translators may now be specified. THIS FEATURE IS AN
- ALPHA RELEASE VERSION.
-
- o ANTLR/DLG should compile without modification using either K&R or
- ANSI compilers. It can be compiled with GCC 1.37 and 2.2 with
- -pedantic option (ANSI with extreme prejustice). DOS and OS/2 even
- like it.
-
- o 1.06 is written in itself: 1.00 or higher.
-
- o The PCCTS source grammar files, antlr.g and dlg_p.g, are distributed
- with the 1.06 release
-
- o A C program to generate makefiles for PCCTS projects
-
- o DLG supports case insensitive scanners
-
- o PCCTS can now delay lookahead until absolutely necessary whereas,
- before, parsers always maintained a buffer of k tokens of lookahead.
-
- o Tutorials are available -- beginning and advanced
-
- o Error messages for k>1 are vastly improved
-
- o The trace facility now has an exit macro
-
- o One can limit the amount of resources available to ANTLR grammar
- analysis to overcome the rare occurrences when ANTLR does not
- terminate.
-
- o PCCTS parsers may now be compiled with C++ (tested with GCC 2.2)
-
- If you are interested in sharing your experiences/problems/successes/
- suggestions regarding PCCTS, please send email to parrt@ecn.purdue.edu (a
- human). Many people ask what others are doing, but no one tells us what
- they are doing. Also, feel free to post messages to the comp.compilers
- newsgroup if you have grammars/tools that might prove useful to others.
-
-
- WHO USES PCCTS?
-
- Although we will not make public the list of users of the PCCTS
- email server, we thought you might be interested in a few statistics about
- who is using PCCTS. Note that this does not include users who simply
- access our ftp site, any mirror site, Compuserve, or BIX; neither does it
- include those who purchase PCCTS from Austin Code Works.
-
- This information was obtained using a (not very clever) shell script
- on Dec. 4, 1992:
-
- Site count: 625 total
- Known types: 171 .edu, 168 .com, 11 .gov, 11 .org, 6 .mil
-
- Site countries: 439 US; 186 foreign:
-
- 32 Germany, 21 Australia, 20 UK, 19 Canada, 9 Sweden, 9 Holland, 7
- France, 7 Finland, 5 South Africa, 5 Japan, 5 Austria, 4 Portugal, 4
- Norway, 4 New Zealand, 4 Greece, 4 Denmark, 3 Korea, 3 Italy, 3
- Ireland, 3 India, 3 Commonwealth of Independent States, 2 Hong Kong,
- 2 China, 2 Belgium, 1 Singapore, 1 Mexico
-
-
- OTHER INFO
-
- A few universities are using PCCTS in compiler courses.
-
- Mirror sites include src.doc.ic.ac.uk, where PCCTS is available in:
- /computing/programming/languages/tools/pccts/1.06
-
-
- The Authors of The Purdue Compiler Construction Tool Set:
-
- Terence J. Parr, parrt@ecn.purdue.edu
- Will E. Cohen, cohenw@ecn.purdue.edu
- Henry G. Dietz, hankd@ecn.purdue.edu
- --
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