Repository of BNF Grammars?

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.

From stackoverflow

• 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

• 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.

  : The issue with reusing the grammar that is used by the MySQL server is that is depends on the tokens generated by the lexer. The lexer, having ~115 members, is neither easy to use nor easy to replace.

• 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

  ---

  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

  ---

  python

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

  ---

  javascript

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

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

  ---

  ruby

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

  porneL : ObjC grammar here is pretty old - doesn't include exceptions, synchronize or properties.

• 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.