Thu, 29 Jan 2009 02:13:30 +0000
configmanager: Add support for defining components
615 | 1 | -- Prosody IM v0.2 |
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2 | -- Copyright (C) 2008 Matthew Wild |
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3 | -- Copyright (C) 2008 Waqas Hussain |
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4 | -- |
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5 | -- This program is free software; you can redistribute it and/or |
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6 | -- modify it under the terms of the GNU General Public License |
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7 | -- as published by the Free Software Foundation; either version 2 |
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8 | -- of the License, or (at your option) any later version. |
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9 | -- |
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10 | -- This program is distributed in the hope that it will be useful, |
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11 | -- but WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 | -- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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13 | -- GNU General Public License for more details. |
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14 | -- |
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15 | -- You should have received a copy of the GNU General Public License |
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16 | -- along with this program; if not, write to the Free Software |
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17 | -- Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
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18 | -- |
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19 | |
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20 | local string_rep = string.rep; |
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21 | local type = type; |
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22 | local tostring = tostring; |
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23 | local t_insert = table.insert; |
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24 | local t_concat = table.concat; |
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25 | local error = error; |
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26 | local pairs = pairs; |
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27 | |
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28 | module "serialization" |
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29 | |
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30 | local indent = function(i) |
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31 | return string_rep("\t", i); |
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32 | end |
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33 | local function basicSerialize (o) |
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34 | if type(o) == "number" or type(o) == "boolean" then |
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35 | return tostring(o); |
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36 | else -- assume it is a string -- FIXME make sure it's a string. throw an error otherwise. |
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37 | return (("%q"):format(tostring(o)):gsub("\\\n", "\\n")); |
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38 | end |
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39 | end |
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40 | local function _simplesave(o, ind, t, func) |
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41 | if type(o) == "number" then |
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42 | func(t, tostring(o)); |
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43 | elseif type(o) == "string" then |
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44 | func(t, (("%q"):format(o):gsub("\\\n", "\\n"))); |
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45 | elseif type(o) == "table" then |
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46 | func(t, "{\n"); |
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47 | for k,v in pairs(o) do |
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48 | func(t, indent(ind)); |
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49 | func(t, "["); |
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50 | func(t, basicSerialize(k)); |
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51 | func(t, "] = "); |
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52 | if ind == 0 then |
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53 | _simplesave(v, 0, t, func); |
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54 | else |
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55 | _simplesave(v, ind+1, t, func); |
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56 | end |
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57 | func(t, ",\n"); |
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58 | end |
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59 | func(t, indent(ind-1)); |
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60 | func(t, "}"); |
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61 | elseif type(o) == "boolean" then |
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62 | func(t, (o and "true" or "false")); |
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63 | else |
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64 | error("cannot serialize a " .. type(o)) |
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65 | end |
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66 | end |
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67 | |
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68 | function append(t, o) |
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69 | _simplesave(o, 1, t, t.write or t_insert); |
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70 | return t; |
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71 | end |
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72 | |
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73 | function serialize(o) |
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74 | return t_concat(append({}, o)); |
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75 | end |
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76 | |
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77 | function deserialize(str) |
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78 | error("Not implemented"); |
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79 | end |
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80 | |
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81 | return _M; |