Note: flex 2.5.33 or greater is required (need support for %option noyyalloc noyyfree noyyrealloc)

To build:

make
make install  # Note: You might have to be a privileged user to do this

(Note: set DONT_USE_PGXS before calling make if you don't want to use pgxs for
the build. If you don't know what this means, you should probably just ignore
it.)

-- restart postgresql

DROP FUNCTION PL_LOLCODE_CALL_HANDLER() CASCADE;

-- For 8.2:

INSERT INTO pg_pltemplate (
    tmplname,
    tmpltrusted,
    tmplhandler,
    tmpllibrary
)
VALUES (
    'pllolcode',
    't',
    'pl_lolcode_call_handler',
    '$libdir/pllolcode'
);

-- For 8.3:

INSERT INTO pg_pltemplate (
    tmplname,
    tmpltrusted,
    tmpldbacreate,
    tmplhandler,
    tmpllibrary
)
VALUES (
    'pllolcode',
    't',
    't',
    'pl_lolcode_call_handler',
    '$libdir/pllolcode'
);

CREATE LANGUAGE PLLOLCODE;

-- Sample function: 

CREATE FUNCTION LOL_MAIN_TEST(TEXT)
RETURNS BOOLEAN
LANGUAGE PLLOLCODE
AS $$
HAI
     VISIBLE INFO LOL1
     FOUND YR WIN
KTHXBYE
$$;

SELECT LOL_MAIN_TEST('IM IN YR DATABUKKIT');

/*
INFO:  IM IN YR DATABUKKIT
 lol_main_test 
 ---------------
  t
  (1 row)
*/

Notes:

- PL/LOLCODE aims to implement the LOLCODE 1.2 spec, at least at the time of
  this writing
- Note as in the sample function above, boolean values (TROOF values, in
  LOLCODE parlance) are WIN (true) and FAIL (false)
- Arguments passed to a function are available with the special PL/LOLCODE
  variables LOL1, LOL2, etc.
- The VISIBLE command corresponds to RAISE in pl/pgsql. It can optionally take
  values of INFO, NOTICE, etc. (just like RAISE) to indicate the desired log
  level.