Another great use of leex and yecc -- a SQL parser from folks at Basho: https://github.com/basho/riak_ql https://github.com/basho/riak_ql Specifically: https

Another great use of leex and yecc -- a SQL parser from folks at Basho: https://github.com/basho/riak_ql https://github.com/basho/riak_ql Specifically: https://github.com/basho/riak_ql/blob/develop/src/riak_ql_lexer.xrl https://github.com/basho/riak_ql/blob/develop/src/riak_ql_le... https://github.com/basho/riak_ql/blob/develop/src/riak_ql_parser.yrl https://github.com/basho/riak_ql/blob/develop/src/riak_ql_pa... It is a very concise and well written piece of software.