Wed, 05 Aug 2009 16:37:28 +0100
mod_saslauth: Fix coding style and layout, and use of arg[] for vararg
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1 | -- Prosody IM |
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2 | -- Copyright (C) 2008-2009 Matthew Wild |
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3 | -- Copyright (C) 2008-2009 Waqas Hussain |
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4 | -- |
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5 | -- This project is MIT/X11 licensed. Please see the |
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6 | -- COPYING file in the source package for more information. |
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7 | -- |
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8 | |
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9 | local array = {}; |
918 | 10 | |
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11 | local array_mt = { __index = array, __tostring = function (array) return array:concat(", "); end }; |
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12 | local function new_array(_, t) |
918 | 13 | return setmetatable(t or {}, array_mt); |
14 | end | |
15 | ||
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16 | function array_mt.__add(a1, a2) |
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17 | local res = new_array(); |
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18 | return res:append(a1):append(a2); |
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19 | end |
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20 | |
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21 | setmetatable(array, { __call = new_array }); |
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22 | |
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23 | function array:map(func, t2) |
918 | 24 | local t2 = t2 or array{}; |
25 | for k,v in ipairs(self) do | |
26 | t2[k] = func(v); | |
27 | end | |
28 | return t2; | |
29 | end | |
30 | ||
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31 | function array:filter(func, t2) |
918 | 32 | local t2 = t2 or array{}; |
33 | for k,v in ipairs(self) do | |
34 | if func(v) then | |
35 | t2:push(v); | |
36 | end | |
37 | end | |
38 | return t2; | |
39 | end | |
40 | ||
41 | ||
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42 | array.push = table.insert; |
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43 | array.pop = table.remove; |
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44 | array.sort = table.sort; |
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45 | array.concat = table.concat; |
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46 | array.length = function (t) return #t; end |
918 | 47 | |
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48 | function array:random() |
918 | 49 | return self[math.random(1,#self)]; |
50 | end | |
51 | ||
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52 | function array:shuffle() |
918 | 53 | local len = #self; |
54 | for i=1,#self do | |
55 | local r = math.random(i,len); | |
56 | self[i], self[r] = self[r], self[i]; | |
57 | end | |
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58 | return self; |
918 | 59 | end |
60 | ||
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61 | function array:reverse() |
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62 | local len = #self-1; |
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63 | for i=len,1,-1 do |
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64 | self:push(self[i]); |
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65 | self:pop(i); |
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66 | end |
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67 | return self; |
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68 | end |
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69 | |
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70 | function array:append(array) |
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71 | local len,len2 = #self, #array; |
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72 | for i=1,len2 do |
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73 | self[len+i] = array[i]; |
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74 | end |
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75 | return self; |
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76 | end |
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77 | |
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78 | function array.collect(f, s, var) |
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79 | local t, var = {}; |
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80 | while true do |
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81 | var = f(s, var); |
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82 | if var == nil then break; end |
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83 | table.insert(t, var); |
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84 | end |
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85 | return setmetatable(t, array_mt); |
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86 | end |
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87 | |
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88 | _G.array = array; |
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89 | module("array"); |
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90 | |
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91 | return array; |