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81 lines
2.2 KiB
81 lines
2.2 KiB
-- Prosody IM v0.2
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-- Copyright (C) 2008 Matthew Wild
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-- Copyright (C) 2008 Waqas Hussain
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--
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-- This program is free software; you can redistribute it and/or
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-- modify it under the terms of the GNU General Public License
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-- as published by the Free Software Foundation; either version 2
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-- of the License, or (at your option) any later version.
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--
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-- This program is distributed in the hope that it will be useful,
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-- but WITHOUT ANY WARRANTY; without even the implied warranty of
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-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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-- GNU General Public License for more details.
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--
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-- You should have received a copy of the GNU General Public License
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-- along with this program; if not, write to the Free Software
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-- Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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--
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local string_rep = string.rep;
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local type = type;
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local tostring = tostring;
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local t_insert = table.insert;
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local t_concat = table.concat;
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local error = error;
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local pairs = pairs;
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module "serialization"
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local indent = function(i)
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return string_rep("\t", i);
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end
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local function basicSerialize (o)
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if type(o) == "number" or type(o) == "boolean" then
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return tostring(o);
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else -- assume it is a string -- FIXME make sure it's a string. throw an error otherwise.
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return (("%q"):format(tostring(o)):gsub("\\\n", "\\n"));
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end
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end
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local function _simplesave(o, ind, t, func)
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if type(o) == "number" then
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func(t, tostring(o));
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elseif type(o) == "string" then
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func(t, (("%q"):format(o):gsub("\\\n", "\\n")));
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elseif type(o) == "table" then
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func(t, "{\n");
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for k,v in pairs(o) do
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func(t, indent(ind));
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func(t, "[");
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func(t, basicSerialize(k));
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func(t, "] = ");
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if ind == 0 then
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_simplesave(v, 0, t, func);
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else
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_simplesave(v, ind+1, t, func);
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end
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func(t, ",\n");
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end
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func(t, indent(ind-1));
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func(t, "}");
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elseif type(o) == "boolean" then
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func(t, (o and "true" or "false"));
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else
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error("cannot serialize a " .. type(o))
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end
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end
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function append(t, o)
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_simplesave(o, 1, t, t.write or t_insert);
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return t;
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end
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function serialize(o)
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return t_concat(append({}, o));
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end
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function deserialize(str)
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error("Not implemented");
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end
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return _M;
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