Repository of BNF Grammars?

Question

Is there a place I can find Backus–Naur Form or BNF grammars for popular languages? Whenever I do a search I don't turn up much, but I figure they must be published somewhere. I'm most interested in seeing one for Objective-C and maybe MySQL.

Answer 1

There are some links from w:BNF#Language Grammers.

• BNF Grammars for SQL-92, SQL-99 and SQL-2003

I also found a page that lists grammars for Objective C.

• Objective-C grammar for Lex/Yacc Flex/Bison
• Reference Manual for the Objective-C Language

Answer 2

FWIW, the MySQL grammar file (mysql-server/sql/sql_yacc.y) is open source and browseable at launchpad.net (though it's a bit slow and I got an error when I tried to pull up the specific file).

Also, a snapshot of the whole MySQL Server source is downloadable from dev.mysql.com.

Answer 3

you have to search on tools used to create grammars: "lex/yacc grammar", "antlr grammar" "railroad diagram"

http://www.antlr.org/grammar/list

Here's some grammar files

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objective-c

http://www.omnigroup.com/mailman/archive/macosx-dev/2001-March/022979.html

http://www.cilinder.be/docs/next/NeXTStep/3.3/nd/Concepts/ObjectiveC/B_Grammar/Grammar.htmld/index.html

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python

http://www.python.org/dev/summary/2006-04-16_2006-04-30/#the-grammar-file-and-syntaxerrors

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javascript

http://tomcopeland.blogs.com/EcmaScript.html

http://www.ccs.neu.edu/home/dherman/javascript/

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ruby

http://www.ruby-doc.org/docs/ruby-doc-bundle/Manual/man-1.4/yacc.html

Answer 4

IIRC, BNF grammars are just different enough from what yacc/bison want as input to be really annoying :) If you intend to feed these files into a parser generator, you may want to look for files in the appropriate format. I recall seeing such files for Java, JavaScript and C++ at one point. Probably as part of Eclipse, Firefox and GCC, respectively, but I can't remember for sure. I would assume you can find pretty much any parser input file by finding an open source project that uses that language.