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--[[ $%BEGINLICENSE%$
Copyright (C) 2007-2008 MySQL AB, 2008 Sun Microsystems, Inc
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
$%ENDLICENSE%$ --]]
--[[
--]]
function normalize_query(tokens)
local n_q = ""
for i, token in ipairs(tokens) do
-- normalize the query
if token["token_name"] == "TK_COMMENT" then
elseif token["token_name"] == "TK_LITERAL" then
n_q = n_q .. "`" .. token.text .. "` "
elseif token["token_name"] == "TK_STRING" then
n_q = n_q .. "? "
elseif token["token_name"] == "TK_INTEGER" then
n_q = n_q .. "? "
elseif token["token_name"] == "TK_FLOAT" then
n_q = n_q .. "? "
elseif token["token_name"] == "TK_FUNCTION" then
n_q = n_q .. token.text:upper()
else
n_q = n_q .. token.text:upper() .. " "
end
end
return n_q
end
function read_query(packet)
if packet:byte() == proxy.COM_QUERY then
local tokens = proxy.tokenize(packet:sub(2))
-- just for debug
for i, token in ipairs(tokens) do
-- print the token and what we know about it
local txt = token["text"]
if token["token_name"] == 'TK_STRING' then
txt = string.format("%q", txt)
end
-- print(i .. ": " .. " { " .. token["token_name"] .. ", " .. token["text"] .. " }" )
print(i .. ": " .. " { " .. token["token_name"] .. ", " .. txt .. " }" )
end
print("normalized query: " .. normalize_query(tokens))
print("")
end
end
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